WO2022017469A1 - 耳机通话方法及耳机 - Google Patents

耳机通话方法及耳机 Download PDF

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Publication number
WO2022017469A1
WO2022017469A1 PCT/CN2021/107885 CN2021107885W WO2022017469A1 WO 2022017469 A1 WO2022017469 A1 WO 2022017469A1 CN 2021107885 W CN2021107885 W CN 2021107885W WO 2022017469 A1 WO2022017469 A1 WO 2022017469A1
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WIPO (PCT)
Prior art keywords
earphone
microphone
call
voice signal
headset
Prior art date
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PCT/CN2021/107885
Other languages
English (en)
French (fr)
Inventor
孟凡兴
钟金云
Original Assignee
华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP21846749.6A priority Critical patent/EP4175316A4/en
Publication of WO2022017469A1 publication Critical patent/WO2022017469A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041Mechanical or electronic switches, or control elements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00Stereophonic arrangements
    • H04R5/033Headphones for stereophonic communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827Portable transceivers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827Portable transceivers
    • H04B1/385Transceivers carried on the body, e.g. in helmets
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1083Reduction of ambient noise
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00Circuits for transducers, loudspeakers or microphones
    • H04R3/005Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827Portable transceivers
    • H04B1/385Transceivers carried on the body, e.g. in helmets
    • H04B2001/3872Transceivers carried on the body, e.g. in helmets with extendable microphones or earphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1016Earpieces of the intra-aural type
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/10Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
    • H04R2201/107Monophonic and stereophonic headphones with microphone for two-way hands free communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2410/00Microphones
    • H04R2410/05Noise reduction with a separate noise microphone
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00Details of connection covered by H04R, not provided for in its groups
    • H04R2420/03Connection circuits to selectively connect loudspeakers or headphones to amplifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/01Hearing devices using active noise cancellation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10General applications
    • H04R2499/11Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00Stereophonic arrangements
    • H04R5/04Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments

Definitions

  • the present application relates to the technical field of terminals, and in particular, to a method for calling with an earphone and an earphone.
  • Headphones are accessories for terminal devices such as smart watches, mobile phones, and computers.
  • the headset is generally provided with a microphone, which is used for audio collection to assist the terminal device in making calls.
  • the microphone on the headset receives the user's voice, it is easily affected by the environment (such as a noisy environment, or an environment with a low sound source volume, etc.), resulting in a small signal-to-noise ratio of the received voice signal, which affects the headset. Voice effects during calls.
  • the technical solution of the present application provides a headset call method, headset, readable storage medium and program product, which solve the problem of poor voice effect of the headset during a call to a certain extent.
  • the technical solution of the present application provides a method for talking with an earphone, which is applied to the earphone, and the earphone includes a left earphone and a right earphone.
  • a microphone on an earphone is a call microphone; the first voice signal received by the call microphone is sent to the terminal device; wherein the first earphone is one of the left earphone and the right earphone.
  • the microphone on the headset in the non-wearing state can be switched to a call microphone.
  • the position of the call microphone is no longer limited by the wearing position of the headset or the wearing position of the control module.
  • one of the earphones can be moved to a position close to the sound source (for example, placed on the lips). In this way, the earphone can detect that the earphone near the sound source is in a non-wearing state, and use the microphone on the earphone as a call microphone.
  • the intensity of the user's voice received by the call microphone can be increased to a certain extent, thereby increasing the signal-to-noise ratio of the voice signal received by the call microphone. This further enhances the voice effect of the headset during a call.
  • the first earphone can be understood as an earphone whose built-in microphone can be used as a call microphone in a non-wearing state. Both the left earphone and the right earphone can be set as the first earphone. In this way, when the user uses the earphone to make a call, he can take off any earphone at random and use the microphone on the earphone as the call microphone.
  • One of the left earphone and the right earphone can also be set as the first earphone. Suppose, the left earphone is set as the first earphone. In this way, when the user uses the earphone to make a call, he can take off the left earphone and use the The microphone acts as a call microphone.
  • the first voice signal may be the user's voice information received after the microphone on the first earphone is determined to be the call microphone.
  • the method further includes: when it is determined that the microphone on the first earphone is a call microphone, turning off the speaker in the first earphone.
  • the call microphone on the non-wearing first headset can receive the user's first voice signal, and the speaker on another headset can play the voice signal of the other party.
  • determining that the microphone on the first earphone is a call microphone includes: if it is detected that the first earphone is in a non-wearing state, and the microphone on the first earphone is If the signal-to-noise ratio of the received voice signal is greater than the signal-to-noise ratio of the voice signal received by the current call microphone in the headset, it is determined that the microphone on the first headset is the call microphone.
  • a wearing sensor is provided on the first earphone, and the method further includes: determining whether the first earphone is in a non-wearing state according to detection information of the wearing sensor.
  • a switch is provided on the first earphone, and when it is detected that the switch is turned on, it is determined that the first earphone is in a non-wearing state.
  • the microphone on the first earphone includes a front microphone and a rear microphone.
  • the signal-to-noise ratio of the voice signal received by the front microphone is detected, and the signal-to-noise ratio of the voice signal received by the rear microphone is detected.
  • the absolute value of the difference between the signal-to-noise ratios is smaller than the preset difference, it is determined that the first earphone is in a non-wearing state.
  • the microphone on the first earphone includes a first microphone and a second microphone, and when it is detected that the first microphone is blocked, it is determined that the first earphone is in a non-wearing state; the microphone on the first earphone is determined to be A call microphone, including: determining the second microphone as a call microphone.
  • determining that the microphone on the first earphone is the call microphone includes: determining the microphone with the highest signal-to-noise ratio among the plurality of microphones as the call microphone.
  • determining that the microphones on the first earphone are call microphones includes: determining that at least two microphones in the plurality of microphones are call microphones; Sending the first voice signal to the terminal device includes synthesizing the voice signals respectively received by the at least two call microphones to obtain the first voice signal; and sending the first voice signal to the terminal device.
  • the method before sending the voice signal received by the call microphone to the terminal device, the method further includes: using the voice signal received by at least one microphone on the headset except the call microphone, to the voice signal received by the call microphone Perform noise reduction processing on the first voice signal of the call microphone; and sending the first voice signal received by the call microphone to the terminal device includes: sending the noise-reduced first voice signal to the terminal device.
  • further noise reduction processing is performed on the first voice signal received by the call microphone to further increase the signal-to-noise ratio of the first voice signal and further enhance the voice effect of the headset during the call.
  • the technical solution of the present application provides a method for talking with an earphone, which is applied to an earphone.
  • the earphone includes a left earphone and a right earphone.
  • the method includes: in a call state, if it is detected that the first earphone is in a non-wearing state, and the If the signal-to-noise ratio of the voice signal received by the microphone on the headset is greater than the signal-to-noise ratio of the voice signal received by the current call microphone in the headset, the microphone on the first headset is determined to be the call microphone, and the first headset is turned off. the speaker;
  • a wearing sensor is provided on the first earphone, it is determined whether the first earphone is in a non-wearing state according to the detection information of the wearing sensor; if a switch is provided on the first earphone, when it is detected that the switch is turned on, the first earphone is determined The headset is in a non-wearing state; if the microphones on the first headset include a front microphone and a rear microphone, the signal-to-noise ratio of the voice signal received by the front microphone and the voice signal received by the rear microphone are detected When the absolute value of the difference between the signal-to-noise ratios is less than the preset difference, it is determined that the first earphone is in a non-wearing state; if the microphones on the first earphone include the first microphone and the second microphone, when all the microphones of the first microphone are detected When the variation of the signal-to-noise ratio of the received voice signal is greater than or equal to a preset threshold, it is determined that the first earphone is
  • the first earphone is one of the left earphone and the right earphone.
  • the technical solution of the present application provides an earphone communication device, which is applied to an earphone, and the earphone includes a left earphone and a right earphone.
  • the headset communication device includes: a switching unit for determining that the microphone on the first headset is a calling microphone when the headset is in a calling state, if it is detected that the first headset is in a non-wearing state; A voice signal is sent to the terminal device, and the first earphone is one of the left earphone and the right earphone.
  • the switching unit is further configured to turn off the speaker in the first earphone when it is determined that the microphone on the first earphone is a call microphone.
  • the switching unit is specifically configured to, if it is detected that the first earphone is in a non-wearing state, and the signal-to-noise ratio of the voice signal received by the microphone on the first earphone is greater than that received by the current call microphone in the earphone The obtained signal-to-noise ratio of the speech signal determines that the microphone on the first earphone is a call microphone.
  • a wearing sensor is provided on the first earphone, and the switching unit is further configured to determine whether the first earphone is in a non-wearing state according to detection information of the wearing sensor.
  • a switch is provided on the first earphone, and the switching unit is specifically configured to determine that the first earphone is in a non-wearing state when it is detected that the switch is turned on.
  • the microphone on the first earphone includes a front microphone and a rear microphone
  • the switching unit is specifically configured to detect the signal-to-noise ratio of the voice signal received by the front microphone, and the When the absolute value of the difference between the signal-to-noise ratios of the received speech signals is smaller than the preset difference value, it is determined that the first earphone is in a non-wearing state.
  • the microphone on the first earphone includes a first microphone and a second microphone
  • the switching unit is specifically configured to detect that the change in the signal-to-noise ratio of the voice signal received by the first microphone is greater than or When it is equal to the preset threshold, it is determined that the first earphone is in a non-wearing state, and the second microphone is determined to be a call microphone.
  • the switching unit is specifically configured to determine the microphone with the highest signal-to-noise ratio among the multiple microphones as the call microphone.
  • the switching unit is specifically used to determine that at least two microphones among the multiple microphones are call microphones; the communication unit is specifically used to separate the at least two call microphones respectively.
  • the received voice signals are synthesized to obtain a first voice signal; and the first voice signal is sent to the terminal device.
  • the headset communication device further includes a noise reduction unit configured to perform noise reduction on the first voice signal received by the call microphone by using the voice signal received by at least one microphone on the headset other than the call microphone processing; the communication unit is specifically configured to send the noise-reduced first voice signal to the terminal device.
  • a noise reduction unit configured to perform noise reduction on the first voice signal received by the call microphone by using the voice signal received by at least one microphone on the headset other than the call microphone processing; the communication unit is specifically configured to send the noise-reduced first voice signal to the terminal device.
  • the technical solution of the present application provides an earphone, the earphone includes a left earphone and a right earphone, the earphone includes a processor, a memory, and a computer program stored in the memory and executable on the processor, so When the processor executes the computer program, the earphone executes the earphone call method described in any implementation manner of the first aspect or the second aspect, and the first earphone is one of the left earphone and the right earphone.
  • the earphone is a true wireless stereo earphone or a neck-worn earphone.
  • the first earphone is a main earphone.
  • the technical solution of the present application provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the headset, any implementation of the first aspect or the second aspect is realized.
  • the technical solution of the present application provides a computer program product that, when the computer program product runs on a headset, enables the headset to implement the headset calling method described in any implementation manner of the first aspect or the second aspect.
  • FIG. 1 is a schematic diagram of a microphone on a TWS headset according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of a microphone on a neck-worn headset according to an embodiment of the present application
  • FIG. 3 is a schematic flowchart 1 of a method for a headset call provided by an embodiment of the present application
  • FIG. 4 is a schematic diagram 1 of a usage scenario of a TWS headset provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram 1 of a usage scenario of a neck-worn headset according to an embodiment of the present application
  • FIG. 6 is a schematic diagram 2 of a usage scenario of a TWS headset provided by an embodiment of the present application.
  • FIG. 7 is a second schematic diagram of a usage scenario of a neck-worn headset provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram 3 of a usage scenario of a neck-worn headset provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram 3 of a usage scenario of a TWS headset provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram 1 of a switching process of a call microphone according to an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a usage scenario in which multiple microphones are provided on an earphone provided by an embodiment of the application;
  • FIG. 12 is a schematic diagram 1 of a frequency response curve of a microphone according to an embodiment of the present application.
  • FIG. 13 is a second schematic diagram of a switching process of a talking microphone according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of an ANC headset provided by an embodiment of the application.
  • FIG. 15 is a second schematic diagram of a frequency response curve of a microphone according to an embodiment of the present application.
  • 16 is a schematic structural diagram of a neck-worn ANC earphone according to an embodiment of the application.
  • FIG. 17 is a schematic diagram 3 of a switching process of a talking microphone according to an embodiment of the present application.
  • FIG. 18 is a schematic diagram of a noise source provided by an embodiment of the present application.
  • FIG. 19 is a schematic diagram 1 of a prompt interface for a call using a headset according to an embodiment of the present application.
  • FIG. 20 is a schematic diagram 2 of a prompt interface for a call using an earphone according to an embodiment of the present application
  • FIG. 21 is a schematic diagram 3 of a prompt interface for a call using an earphone according to an embodiment of the present application.
  • FIG. 22 is a fourth schematic diagram of a prompt interface for a call using a headset according to an embodiment of the present application.
  • FIG. 23 is a schematic diagram 5 of a prompt interface for a call using a headset according to an embodiment of the present application.
  • 24 is a schematic diagram 6 of a prompt interface for a call using an earphone according to an embodiment of the present application
  • FIG. 25 is a schematic structural diagram of a headset communication device according to an embodiment of the application.
  • FIG. 26 is a schematic diagram of a hardware structure of an earphone according to an embodiment of the application.
  • the call microphone (which may also be referred to as a sending microphone) is generally in a relatively fixed position.
  • the call microphone refers to a microphone used by the headset to receive a user's voice signal when the headset is in a call state.
  • the voice signal can be sent by the terminal device to the call partner who is talking with the terminal device.
  • the so-called call state means that the headset enables the call microphone to receive the user's voice signal based on the call command sent by the terminal device.
  • the headset can send the user's voice signal to the terminal device, so that the terminal device can send the user's voice signal to the call partner, receive the call party's voice signal through the terminal device, and play the call party's voice signal through the speaker.
  • the microphone on the main headset is generally used as a call microphone.
  • the TWS earphone shown in FIG. 1 includes a left earphone and a right earphone. At least one microphone is respectively set on the two earphones.
  • two microphones ie, MIC11 and MIC12 in FIG. 1
  • the TWS headset may also include a charging compartment.
  • the main earphone in the TWS earphone is used as the main earphone to communicate with the terminal device (eg, mobile phone, computer, smart watch, etc.).
  • the other earphone is used as a secondary earphone to communicate with the main earphone.
  • the communication connection may include a Bluetooth connection, a wifi connection, a near-field radio frequency communication connection, and the like.
  • the main headset sends a call instruction based on the terminal device, and controls the call microphone on the main headset to receive the user's voice.
  • the auxiliary earphone plays the voice signal of the calling party through the speakers in the main earphone and the auxiliary earphone, so as to realize the call between the user and the calling party.
  • the TWS headset can use the headset worn by the user first as the primary headset, and the headset worn by the user later as the secondary headset. For example, if it is detected that the right earphone is worn on the user's ear before the left earphone, the right earphone can be used as the main earphone, and the left earphone can be used as the secondary earphone.
  • the microphone MIC11 on the right earphone acts as a call microphone to receive voice signals.
  • both the left earphone and the right earphone are in the wearing state, if the user takes off one of the earphones, the other earphone still in the wearing state can be the main earphone.
  • the call microphone can be the MIC12 on the left earphone.
  • both the left earphone and the right earphone of the TWS earphone can be communicatively connected to a terminal device (eg, a mobile phone, a computer, a smart watch, etc.).
  • a terminal device eg, a mobile phone, a computer, a smart watch, etc.
  • the left earphone and the right earphone can be connected in communication, and the left earphone and the right earphone are respectively connected in communication with the terminal device.
  • the communication connection may be a Bluetooth connection, a wifi connection, and/or a near-field radio frequency communication connection, or the like.
  • the left earphone and the right earphone receive the voice signal of the other party through the terminal device respectively, so that the left earphone and the right earphone can play the voice signal of the other party through the built-in speaker; the microphone of the left earphone or the microphone of the right earphone can As a call microphone, it receives the user's voice signal, and sends the user's voice signal to the call counterpart through the terminal device, so as to realize the call between the user and the call counterpart.
  • the call microphone may be provided on the control module of the neckband.
  • the neck-worn earphone includes a neckband and two left and right earphones.
  • the neckband is provided with a control module, and the control module is provided with a microphone MIC21, a communication module (for example, a Bluetooth circuit, a near-field radio frequency circuit, etc.), a playback control key (for example, a power key, a "+" key, a "-” key, etc.).
  • the control module controls the call microphone MIC21 to receive the user's voice signal based on the call command sent by the terminal device, and sends the user's voice signal to the call party through the terminal device; and when the control module When the voice signal of the caller is received through the terminal device, the caller's voice signal is sent to the left and right earphones through the connecting line in the neckband, so that the speakers in the left and right earphones play the caller's voice signal synchronously.
  • the headset When using the headset to make a call in some noisy environments (such as a noisy street, a speeding motorcycle, a car with music or open windows, etc.), because the call microphone is located in a relatively fixed position (for example, It is located at the user's ear, neck, etc.), and has a certain distance from the sound source (for example, the user's lips). Therefore, when the call microphone receives the user's voice, the sound intensity of the received ambient noise may be greater than that of the user's voice. Therefore, the signal-to-noise ratio of the received voice signal is small, thereby affecting the voice effect of the earphone.
  • some noisy environments such as a noisy street, a speeding motorcycle, a car with music or open windows, etc.
  • the call microphone may not be able to effectively collect the user's voice.
  • the user when the user is in a meeting place or a public rest area, the user needs to reduce the speaking volume. In this case, due to the certain distance between the call microphone and the sound source, the call microphone may not be able to effectively collect the user's voice, thereby affecting the voice effect of the headset.
  • an embodiment of the present application provides a method for a headset call, in which the headset can switch the microphone on the headset in a non-wearing state to a call microphone when the headset is in a call state.
  • the position of the call microphone is no longer limited by the wearing position of the headset or the wearing position of the control module.
  • one of the earphones can be moved to a position close to the sound source (for example, placed on the lips). In this way, the earphone can detect that the earphone near the sound source is in a non-wearing state, and use the microphone on the earphone as a call microphone.
  • the intensity of the user's voice received by the call microphone can be increased to a certain extent, thereby increasing the signal-to-noise ratio of the voice signal received by the call microphone. This further enhances the voice effect of the headset during a call.
  • the headset calling method provided in the embodiment of the present application may also be applied to a headset having multiple microphones, and at least one of the headsets is provided with a microphone.
  • the earphones applicable to the embodiments of the present application may be earphones of any type, such as TWS earphones, neck-worn earphones, or wire-controlled earphones. This application does not limit this.
  • a flowchart of an embodiment of a headset calling method provided by the present application includes:
  • S302 Send the first voice signal received by the call microphone to the terminal device.
  • the first earphone can be understood as an earphone whose built-in microphone can be used as a call microphone in a non-wearing state.
  • both the left earphone and the right earphone of the earphone may be the first earphone. Then the user can move any one of the left earphone and the right earphone to a position closer to the sound source (for example, the lips) when using the earphone to make a call, so that the first earphone that is moved to the position closer to the sound source
  • the microphone on the headset switches to the call microphone.
  • one of the left earphone and the right earphone may be the first earphone.
  • the left earphone is provided with a microphone; the right earphone may or may not be provided with a microphone.
  • the headset can take off the left headset and move it to a position closer to the sound source, so that the headset can switch the microphone on its left headset to the call microphone. .
  • the first voice signal may refer to the user's voice signal received by the call microphone after the microphone on the first earphone determines the call microphone.
  • the headset can enter the call state based on the call command sent by the terminal device. For example, when the terminal device starts a call and detects that there is a headset connected to the terminal device, the terminal device can send a call instruction to the headset to instruct the headset to enter the call state. In the call state, the headset will enable the microphone to receive the user's first voice signal, and send the user's first voice signal to the terminal device connected to the headset, and the terminal device will send the user's first voice signal to the call partner; And receive and play the voice signal of the call partner sent by the terminal device, so as to assist the terminal device to realize the call with the call partner.
  • the earphone may perform state detection of the first earphone after entering the call state.
  • the state of the first earphone may include a wearing state and a non-wearing state.
  • the so-called wearing state can be understood as a state in which the first earphone is worn on the user's ear.
  • the so-called non-worn state can be understood as a state in which the first earphone is not worn on the user's ear.
  • the microphone on the first earphone is a call microphone.
  • one microphone may be set on the first earphone, or multiple microphones may be set.
  • any one of the microphones may be determined as a call microphone, and of course at least two microphones among the plurality of microphones may also be a call microphone.
  • the signal-to-noise ratios of the speech signals received by the multiple microphones may also be detected, and then it is determined that the microphone with the highest signal-to-noise ratio of the received speech signals is the call microphone.
  • the multiple microphones may also be determined as call microphones.
  • the headset can synthesize the voice signals received by the multiple call microphones, and then send the synthesized first voice signal to the terminal device.
  • the voice signal received by each call microphone may include signals in two different frequency bands (assuming a high frequency signal and a low frequency signal). If the first earphone is provided with three microphones (assuming they are MICa, MICb and MICc respectively). When the first earphone is in the non-wearing state, it is determined that the MICa, MICb and MICc are all microphones for communication. After the MICa, MICb, and MICc respectively receive the voice signal a, the voice signal b, and the voice signal c, the signal-to-noise ratio of the high-frequency signal and the signal-to-noise ratio of the low-frequency signal in each first voice signal are detected.
  • the signal-to-noise ratio of the high-frequency signal a in the voice signal a is the largest, and the signal-to-noise ratio of the low-frequency signal c in the voice signal c is the largest, then the high-frequency signal a and the low-frequency signal c are synthesized to obtain the first voice signal. Finally, the first voice signal is sent to the terminal device.
  • the earphone can turn off the speaker in the first earphone.
  • the speaker in the other earphone can maintain the working state, and the voice signal of the call partner sent by the terminal device is received and played through the speaker. That is, during a call, if the first earphone is in a non-wearing state, the microphone on the first earphone is used as the call microphone to receive the user's first voice signal through the call microphone on the first earphone, and the speaker in the other earphone is used to receive the user's first voice signal. Play the other party's voice signal.
  • the following takes the usage scenarios of the TWS earphone and the neck-worn earphone as an example to exemplarily describe the earphone calling method provided by the present application.
  • the left earphone and the right earphone of the TWS earphone are respectively worn on the user's ears (ie, in a wearing state).
  • the right earphone can be the main earphone of the TWS earphone
  • the main earphone establishes a communication connection with the terminal device
  • the left earphone can be the sub earphone.
  • the right earphone When the terminal device starts a call (for example, the terminal device receives a call from the other party, or the terminal device makes a call to the other party), the right earphone can enter the call state, enable the MIC11 as the call microphone to receive the user's voice signal, and notify the left earphone to enter the call state. At this point, both the left earphone and the right earphone are in the wearing state.
  • the right earphone After receiving the voice signal of the call partner sent by the terminal device, the right earphone forwards the call partner's voice signal to the left earphone, so as to control the speakers in the left earphone and the right earphone to play the caller's voice signal synchronously.
  • the MIC 11 receives the user's first voice signal
  • the right earphone sends the first voice signal to the terminal device, so that the terminal device sends the first voice signal to the other party of the call.
  • the user removes the left earphone from the left ear and puts it on his lips.
  • the left earphone detects that the left earphone is in a non-wearing state.
  • the left earphone can send status information to the right earphone.
  • a possible implementation is that, based on the status information, the left earphone and the right earphone can directly perform function switching, that is, the left earphone is switched to the main earphone to communicate with the terminal device, and the right earphone is switched to the secondary earphone, which is disconnected from the terminal device. Open the communication connection.
  • the call microphone is switched from MIC11 on the right earphone to MIC12 on the left earphone.
  • the left earphone can turn off the built-in speaker, and when receiving the voice signal of the caller sent by the terminal device, it sends the caller's voice signal to the right earphone, and the right earphone plays the caller's voice through the built-in speaker.
  • the MIC 12 receives the user's first voice signal
  • the left earphone sends the user's first voice signal to the terminal device, so that the terminal device sends the first voice signal to the other party of the call.
  • Another possible implementation is to switch the call microphone from MIC11 to MIC12 based on the state information.
  • the right earphone is still the main earphone, and the left earphone is still the secondary earphone.
  • the right earphone continues to play the voice signal of the caller received through the terminal device through the speaker, while the left earphone can turn off the built-in speaker to stop playing the caller's voice signal sent by the terminal device.
  • the right earphone does not send the call counterpart's voice signal to the left earphone.
  • the MIC 12 receives the user's first voice signal
  • the left earphone sends the first voice signal to the right earphone
  • the right earphone sends the first voice signal to the caller through the terminal device.
  • the position of the calling microphone of the TWS headset will not be limited by the wearing position of the main headset or be limited to the user's ear in the calling state.
  • the first earphone in the non-worn state may be moved to a position closer to the sound source (eg, the user's lips). Compared with the position near the user's ear, after the call microphone is moved to the user's lips, the signal-to-noise ratio of the first voice signal received is greater. Therefore, the voice effect of the earphone can be enhanced to a certain extent.
  • the left and right earphones of the neck-worn headset are respectively worn on the ears of the user.
  • the neckband can be hung around the user's neck.
  • the control module is provided with a microphone MIC21, assuming that the left earphone is provided with a microphone MIC22, and the right earphone is provided with a microphone MIC23.
  • the control module enables the MIC21 to receive the user's first voice signal as a call microphone based on the call instruction, and sends the first voice signal received by the MIC21 to the call partner through the terminal device; and sends the call party's voice received through the terminal device.
  • the signal is sent to the left earphone and the right earphone to control the speakers in the left earphone and the right earphone to synchronously play the voice signal of the calling party. At this point, both the left earphone and the right earphone are in the wearing state.
  • the user takes off the left earphone and puts it on his lips.
  • the left earphone detects that the left earphone is in a non-wearing state, and the left earphone can send status information to the control module.
  • the control module determines that the MIC 23 on the left earphone is the call microphone (for example, the call microphone is switched from the MIC 21 to the MIC 23 ), and starts the MIC 23 to receive the voice signal.
  • the MIC23 After the MIC23 receives the voice signal, it sends the voice signal to the control module, and the control module sends the voice signal to the terminal device.
  • control module can control the left earphone to turn off the built-in speaker, so that the left earphone stops playing the voice signal of the call partner sent by the terminal device.
  • control module may send the call partner's voice signal to the right earphone, but not to the left earphone.
  • the position of the call microphone of the neck-worn headset will not be limited by the wearing position of the control module on the neckband, and will not be limited to the user. at the neck.
  • the first earphone in the non-worn state may be moved to a position closer to the sound source (eg, the user's lips). Compared with the position on the user's neck, after the call microphone is moved to the user's lips, the signal-to-noise ratio of the first voice signal received is greater. Therefore, the voice effect of the earphone can be enhanced to a certain extent.
  • the microphone of the left earphone acts as a call microphone, receives the user's first voice signal through the call microphone, and plays the call party's voice signal through the speaker of the right earphone.
  • the first headset is not being worn, and may not be used by the user to use the microphone on the first headset as a call microphone (eg, by moving the first headset to move the call microphone closer to the sound source) .
  • the first earphone falls off due to collision or improper wearing.
  • the headset still switches the call microphone to the first headset, the call microphone will be farther away from the sound source, resulting in a lower signal-to-noise ratio of the voice signal received by the call microphone. Therefore, in order to avoid erroneous switching, after determining that the first earphone is in a non-wearing state, the earphone may further perform signal-to-noise ratio detection.
  • the call microphone is switched to the microphone on the first earphone.
  • the left earphone detects that the left earphone is in a non-wearing state.
  • the left earphone can send the voice signal and status information received by MIC12 to the right earphone.
  • the right earphone determines that the left earphone is in the non-wearing state based on the state information, and compares the signal-to-noise ratio 12 of the speech signal received by the MIC12 with the signal-to-noise ratio 11 of the speech signal received by the current call microphone MIC11 .
  • the signal-to-noise ratio 12 is greater than the signal-to-noise ratio 11, it means that the MIC12 is closer to the sound source than the current call microphone MIC11, then the left earphone and the right earphone can switch the call microphone from MIC11 to MIC12. If the signal-to-noise ratio 12 is less than or equal to the signal-to-noise ratio 11, it means that the MIC12 is not closer to the sound source than the current call microphone MIC11, then the MIC11 continues to serve as the call microphone.
  • the left earphone after the left earphone detects that the left earphone is in a non-wearing state, it can send the state information and the voice signal received by the MIC 23 to the control module.
  • the control module determines that the left earphone is in the non-wearing state based on the state information, and compares the signal-to-noise ratio 23 of the voice signal received by the MIC23 with the signal-to-noise ratio 21 of the voice signal received by the current call microphone MIC21.
  • the control module can switch the call microphone from MIC21 to MIC23. If the signal-to-noise ratio 23 is less than or equal to the signal-to-noise ratio 21, it means that the MIC23 is not closer to the sound source than the current call microphone MIC21, then the MIC21 continues to serve as the call microphone.
  • Manner 1 is based on the state of the first earphone detected by the wearing sensor, and the switching of the call microphone is performed.
  • a wearing sensor is respectively provided on the left earphone and/or the right earphone of the earphone.
  • a wearing sensor 1 is arranged in the left earphone of the neck-worn earphone
  • a wearing sensor 2 is arranged in the right earphone
  • the left earphone and the right earphone of the neck-worn earphone may both be the first earphone.
  • a wearing sensor 3 is arranged in the left earphone of the TWS earphone
  • a wearing sensor 4 is arranged in the right earphone.
  • the left earphone and the right earphone of the TWS earphone are both first earphones.
  • the headset can use the wearing sensor to detect whether the headset is in a wearing state or a non-wearing state.
  • the wearing sensor may be a pressure sensor, a temperature sensor, a distance sensor, a light sensor, an acceleration sensor, an in-ear detection sensor, etc.; or the wearing sensor may include a front light distance sensor, a back light distance sensor, a motion acceleration sensor, etc.; or
  • the wearable sensor can also be other types of sensors. This application does not limit this.
  • the wearing sensor provided in the earphone is a pressure sensor. Then, when the user wears the earphone on the ear, the earphone will be squeezed by the ear, so that the pressure sensor in the earphone generates a pressure value signal.
  • a pressure value threshold may be set, and when the pressure value signal generated by the pressure sensor is greater than or equal to the pressure value threshold, it is determined that the earphone is in a wearing state. When the pressure value signal generated by the pressure sensor is smaller than the pressure value threshold, it is determined that the earphone is in a non-wearing state.
  • the wearing sensor set in the headset is a temperature sensor. Then, when the user wears the earphone on the ear, the temperature sensor in the earphone will generate a temperature value signal corresponding to the temperature of the human body. For example, a temperature value interval corresponding to the body temperature may be set, and when the temperature value signal generated by the temperature sensor is within the temperature value interval, it is determined that the earphone is in a wearing state. When the temperature value signal generated by the temperature sensor is not within the temperature value range, it is determined that the earphone is in a non-wearing state.
  • the wearing sensor set in the headset is a distance sensor. Then, when the user wears the earphone on the ear, the earphone will be squeezed by the ear, so that the distance value signal detected by the distance sensor in the earphone becomes smaller.
  • a distance value threshold may be set, and when the distance value signal generated by the distance sensor is greater than or equal to the distance value threshold, it is determined that the earphone is in a non-wearing state. When the distance value signal generated by the distance sensor is smaller than the distance value threshold, it is determined that the earphone is in a wearing state.
  • the earphone is a TWS earphone, after the first earphone is taken out from the charging compartment, it can be detected whether the distance value signal generated by the distance sensor is greater than or equal to the distance value threshold.
  • the wearing sensor set in the headset is a light sensor. Then, when the user wears the earphone on the ear, the light intensity detected by the light sensor in the earphone is small.
  • a light intensity threshold may be set, and when the light intensity signal generated by the light sensor is greater than or equal to the light intensity threshold, it is determined that the earphone is in a non-wearing state. When the light intensity signal generated by the light sensor is less than the light intensity threshold, it is determined that the earphone is in a wearing state.
  • the earphone is a TWS earphone, after the earphone is taken out from the charging compartment, it can be detected whether the light intensity signal generated by the light sensor is less than the light intensity value threshold.
  • the wearing sensor set in the headset is an acceleration sensor. Then, when the user picks up the earphone and puts it on the ear, and removes the earphone from the ear, the acceleration change rate measured by the acceleration sensor in the earphone will change.
  • an acceleration change rate interval corresponding to taking off the earphone and an acceleration change rate interval corresponding to wearing the earphone can be set respectively. Then, based on the two acceleration change intervals and the acceleration signal generated by the acceleration sensor in the earphone, it is determined whether the earphone is in a wearing state or a non-wearing state.
  • the wearing sensors include: front light distance sensor, back light distance sensor and motion acceleration sensor
  • the motion acceleration sensor senses the change of speed, when the earphone is put on, the ear is covered. After living the two light distance sensors in the front and rear, and the distance reaches the preset value, the earphones are judged to be in the ear and are in the wearing state.
  • the preset value may be set to different values according to actual conditions, which is not limited in this embodiment of the present invention.
  • the wearing sensor 1 and the wearing sensor 2 can periodically detect the state of their respective headsets, and send the acquired detection information to the control module.
  • the control module determines, based on the detection information, that one of the earphones (assuming the right earphone) is in the wearing state and the other earphone (assuming the left earphone) is not being worn, the control module may determine that the left earphone can perform the switching of the call microphone.
  • the control module may first trigger the signal-to-noise ratio detection, and compare the signal-to-noise ratios of the speech signals received by the current call microphones MIC21 and MIC23. If it is detected that the signal-to-noise ratio of the voice signal received by the MIC23 is large, the MIC23 is determined to be the microphone for the call.
  • the control module determines based on the detection information sent by the wearing sensor 1 and the wearing sensor 2 that both the left earphone and the right earphone are in the wearing state, and the control module may not respond.
  • the MIC23 is still a call microphone. If the user wants to change the ear to listen to the phone, after putting the left earphone back on the left ear, take off the right earphone and move it to the lips. At this time, the control module can determine that the left earphone is in the wearing state and the right earphone is in the non-wearing state according to the detection information sent by the wearing sensor 1 and the wearing sensor 2 .
  • the control module can trigger the signal-to-noise ratio detection again, and compare the signal-to-noise ratio of the speech signals received by the current call microphones MIC23 and MIC22. If it is detected that the signal-to-noise ratio of the speech signal received by the MIC22 is large, the MIC22 is determined to be the microphone for the call.
  • the wearing sensor 3 and the wearing sensor 4 periodically detect the states of their respective earphones.
  • the wearing sensor 3 in the secondary earphone (assumed to be the left earphone) detects that the left earphone is in a non-wearing state
  • the acquired detection information is sent to the main earphone (assumed to be the right earphone).
  • the signal-to-noise ratio detection can be triggered to compare the signal-to-noise ratio of the speech signals received by the current call microphones MIC11 and MIC12.
  • the right earphone and the left earphone can determine the MIC12 as a call microphone. For example, the left earphone is switched to the main earphone, and the right earphone is switched to the secondary earphone. Alternatively, switch the call microphone from MIC11 to MIC12.
  • the MIC12 can continue to receive voice signals as a call microphone. If the user wants to change the ear to listen to the phone, after putting the left earphone back on the left ear, take off the right earphone and move it to the lips. If the left earphone and the right earphone are directly switched between the main earphone and the sub earphone, that is, the left earphone is the main earphone and the right earphone is the sub earphone. Then, when the wearing sensor 4 detects that the right earphone is in a non-wearing state, the right earphone can send the detection information obtained by the wearing sensor 4 to the left earphone.
  • the signal-to-noise ratio detection can be triggered to compare the signal-to-noise ratio of the speech signals received by the current call microphones MIC12 and MIC11. If it is detected that the signal-to-noise ratio of the voice signal received by the MIC11 is large, the right earphone is switched to the main earphone, and the left earphone is switched to the secondary earphone. Correspondingly, the call microphone is switched from MIC12 to MIC11.
  • the left earphone and the right earphone directly switch the call microphone, that is, the left earphone is still the secondary earphone, the right earphone is still the main earphone, and the call microphone is MIC12. Then, when the wearing sensor 4 detects that the right earphone is in the non-wearing state, if the right earphone does not receive the detection information sent by the left earphone, or the received detection information indicates that the left earphone is in the wearing state.
  • the right earphone can trigger the noise ratio detection process, and compare the signal-to-noise ratio of the speech signals received by the current call microphones MIC12 and MIC11. If it is detected that the signal-to-noise ratio of the voice signal received by the MIC11 is large, the microphone for the call is switched from the MIC12 to the MIC11.
  • the state of the earphone is detected based on the switch, and the switching of the call microphone is performed.
  • Switches are provided on the left earphone and/or the right earphone of the earphone.
  • the left earphone of the neck-worn earphone is provided with switch 1
  • the right earphone is provided with switch 2
  • the left earphone of the TWS earphone is provided with a switch 3
  • the right earphone is provided with a switch 4 .
  • the switch may be a touch key, a push switch, a toggle switch, or the like. If the switch is a touch key, according to the touch rules, for example, a double-click short press, a triple-click short press, and a single-click long press can be set to indicate that the switch is turned on.
  • the switch of the call microphone can be triggered by turning on the switch on the first earphone.
  • the earphone may determine the state corresponding to the first earphone based on the switch information. That is, when the earphone detects that the switch on the first earphone is turned on, it can be considered that the first earphone is in a non-wearing state, and the microphone for the call can be switched.
  • the microphone switching process of the neck-worn headset shown in FIG. 8 may be shown in FIG. 10 , including:
  • the control module determines that the left earphone is in a non-wearing state according to the switch information, and can switch the call microphone.
  • the control module can directly switch the call microphone from MIC21 to MIC23.
  • the control module may trigger the signal-to-noise ratio detection, and perform step S1002.
  • S1002 Detect whether the signal-to-noise ratio of the voice signal received by the MIC23 is greater than the signal-to-noise ratio of the voice signal received by the current call microphone MIC21.
  • the control module may execute step S1003 to switch the call microphone from MIC21 to MIC23.
  • the control module may not perform the switching operation, and execute S1004 to determine that the call microphone MIC21 remains unchanged.
  • the user wants to listen to the call with another ear. After putting the left earphone back on the left ear, the user takes off the right earphone, moves it to the lips, and turns on switch 2. At this time, the right earphone detects the switch information indicating that the switch 2 is turned on, and sends the switch information to the control module.
  • the control module determines that the right earphone is in a non-wearing state according to the switch information, and can switch the call microphone.
  • the control module can directly switch the call microphone from MIC23 to MIC22.
  • the control module can trigger the signal-to-noise ratio detection to detect whether the signal-to-noise ratio of the voice signal received by the MIC22 is greater than the signal-to-noise ratio of the voice signal received by the current call microphone MIC23 . If it is detected that the signal-to-noise ratio of the voice signal received by the MIC22 is greater, then the call microphone is switched from the MIC23 to the MIC22.
  • a switch is set on the first earphone of the TWS earphone, once the switch on the first earphone is turned on, it can be determined that the first earphone is in a non-wearing state, and the specific switch can be used for the call microphone. switch. It will not be repeated here.
  • Manner 3 The state of the first earphone is detected based on the multi-microphone, and the switching of the call microphone is performed.
  • MIC111 and MIC112 are provided on the left earphone of the TWS earphone, and MIC113 and MIC114 are provided on the right earphone.
  • MIC113 and MIC114 are provided on the right earphone.
  • FIG. 11 when the user is pinching the left earphone, he can block the MIC112 with his finger.
  • the frequency response curve of the received voice signal is frequency response curve 1.
  • the frequency response curve of the received voice signal is frequency response curve 2. It can be seen that in the low frequency (for example, below 1000 Hz) frequency band, the signal-to-noise ratio of the speech signal received by the blocked MIC 112 is significantly reduced compared to the unblocked MIC 112 .
  • the first microphone can also be detected according to the change of the signal-to-noise ratio of the voice signal received by the first microphone. Whether it is blocked, so as to realize the state detection of the first earphone.
  • the second microphone is a call microphone.
  • the microphone switching process of the TWS headset shown in FIG. 11 may be shown in FIG. 13 , including:
  • the first microphone of the right earphone is MIC114
  • the second microphone is MIC113
  • the first microphone of the left earphone is MIC112
  • the second microphone is MIC111.
  • the right earphone is the primary earphone
  • the left earphone is the secondary earphone
  • the current call microphone is MIC113.
  • the user squeezes the left earphone according to (b) in Figure 11, and then moves it to a position close to the sound source. At this time, the left earphone sends the voice signal received by MIC113 and MIC114 to the right earphone.
  • the right earphone detects whether the signal-to-noise ratio of the voice signal received by the MIC113 has changed. If the change is greater than or equal to the preset threshold (for example, 20dB, 15dB), it means that the MIC113 is blocked, and the right earphone can determine that the left earphone is not worn. state. At this time, the right earphone can switch the call microphone from the MIC113 to the MIC111 with the left earphone. In order to avoid misoperation (for example, the user accidentally blocks the MIC112 with a finger, or just to take off the left earphone), the right earphone can trigger the signal-to-noise ratio detection, and the following step S1302 is performed. Of course, if the amount of change is less than the preset threshold, the right earphone may not perform the relevant switching operation, and S1304 is executed to determine that the call microphone MIC113 remains unchanged.
  • the preset threshold for example, 20dB, 15dB
  • S1302 Detect whether the signal-to-noise ratio of the voice signal received by the MIC111 is greater than the signal-to-noise ratio of the voice signal received by the current call microphone MIC113.
  • the right earphone may perform step S1303 to switch the call microphone from MIC113 to MIC111. That is, the function of the right earphone and the left earphone can be switched directly, or only the call microphone can be switched.
  • the signal-to-noise ratio of the voice signal received by the MIC111 is less than or equal to the signal-to-noise ratio of the voice signal received by the current call microphone MIC113, it means that the MIC111 is not closer to the sound source than the MIC113, that is, the user has not moved the MIC111 to a position closer to the sound source. Then, the right earphone may not perform the switching operation, and S1304 is performed to determine that the call microphone MIC113 remains unchanged.
  • the control module may determine whether the first earphone is in a non-wearing state based on the variation of the voice signal-to-noise ratio received by the microphone designated on the first earphone, and then control the switching of the call microphone. It will not be repeated here.
  • Mode 4 For Active Noise Cancellation (ANC) headsets, use the signal-to-noise ratio changes of the voice signals received by the front microphone and the rear microphone on the ANC headset to detect the state of the first headset, and perform a call microphone. switch.
  • ANC Active Noise Cancellation
  • FIG. 14 it is a schematic diagram of a first earphone in an ANC earphone.
  • the first earphone is provided with a front microphone MIC141 and a rear microphone MIC142.
  • the MIC 141 When the first earphone is worn on the user's ear, the MIC 141 is generally located outside the ear, and the MIC 142 is generally located inside the ear (it can be understood that the MIC 142 is blocked by the ear).
  • the frequency response curve of the voice signal received by the MIC141 may be frequency response curve 3
  • the frequency response curve of the voice signal received by the MIC142 may be frequency response curve 4.
  • the signal-to-noise ratio of the speech signal received by the MIC142 is significantly smaller than that of the speech signal received by the MIC141.
  • the difference between the signal-to-noise ratio of the voice signal received by the MIC142 and the signal-to-noise ratio of the voice signal received by the MIC141 will be reduced. .
  • the earphone can detect the state of the first earphone by using the signal-to-noise ratio or intensity change of the voice signal received by the front microphone and the rear microphone on the first earphone.
  • the left earphone is provided with a front microphone (MIC141) and a rear microphone (MIC142), and the right earphone is provided with a front microphone (MIC143) and a rear microphone (MIC143).
  • MIC144 MIC144
  • MIC145 is set on the control module.
  • the microphone switching process of the neck-worn headset can be shown in Figure 17, including:
  • the left earphone can send the voice signals received by MIC141 and MIC142 to the control module, and the control module determines whether the signal-to-noise ratio of the voice signals received by MIC141 and MIC142 meets the non-wearing condition, so as to determine whether the left earphone is in the Not wearing state.
  • the non-wearing condition may be that the absolute value of the difference between the signal-to-noise ratios of the speech signals received by the MIC 141 and the MIC 142 is less than a preset difference (eg, 3dB, 5dB, etc.).
  • a preset difference eg, 3dB, 5dB, etc.
  • the left earphone can also judge by itself whether the signal-to-noise ratio of the voice signals received by MIC141 and MIC142 satisfies the non-wearing condition, and then notify the control module to perform the call microphone switching when the non-wearing condition is met.
  • the control module can switch the call microphone from MIC145 to MIC141 or MIC142.
  • the front microphone may be used as the call microphone, or the rear microphone may be used as the call microphone.
  • the control module can switch the call microphone from MIC145 to MIC141.
  • the control module can trigger the signal-to-noise ratio detection, and the following step S1602 can be performed.
  • S1602 Detect whether the signal-to-noise ratio of the voice signal received by the MIC141 is greater than the signal-to-noise ratio of the voice signal received by the current call microphone MIC145.
  • the control module may execute step S1603 to switch the call microphone from MIC141 to MIC145.
  • the control module may not perform the switching operation, and execute S1604 to determine that the call microphone MIC145 remains unchanged.
  • the call microphone is switched to MIC141, the user wants to listen to the call with another ear. After the user puts the left earphone back on the left ear, he takes off the right earphone and moves it to his lips. At this time, if the signal-to-noise ratio of the voice signals received by the MIC143 and MIC144 on the right earphone satisfies the non-wearing condition, the right earphone is in the non-wearing state, and the call microphone can be switched.
  • the control module can control the module to switch the call microphone from MIC141 to MIC143.
  • the control module can trigger signal-to-noise ratio detection to detect whether the signal-to-noise ratio of the voice signal received by the MIC141 is greater than the signal-to-noise ratio of the voice signal received by the current call microphone MIC143 . If it is detected that the signal-to-noise ratio of the speech signal received by the MIC143 is greater, the microphone for the call is switched from the MIC141 to the MIC143.
  • the TWS earphone if the TWS earphone is an ANC earphone, the right front microphone and the rear microphone are set on the first earphone of the TWS earphone. Based on the signal-to-noise ratio of the voice signals received by the front microphone and the rear microphone, it can be known whether the headset is in a non-wearing state. Once the signal-to-noise ratio of the voice signal received by the front microphone and the rear microphone satisfies the non-wearing condition, it can be determined that the headset is in the non-wearing state, and the call microphone can be switched. The specific switching process will not be repeated here.
  • the microphone on the first headset in the non-wearing state can be switched to the calling microphone in the calling state.
  • the position of the call microphone is no longer limited by the wearing position of the headset or the wearing position of the control module.
  • the first earphone can be moved to a position close to the sound source (for example, placed on the lips). In this way, the earphone can detect that the first earphone near the sound source is in a non-wearing state, and use the microphone on the first earphone as a call microphone.
  • the intensity of the user's voice received by the call microphone can be increased to a certain extent, thereby increasing the signal-to-noise ratio of the first voice signal. This further enhances the voice effect of the headset during a call.
  • further noise reduction processing may be performed on the first voice signal received by the call microphone to further increase the first voice signal
  • the signal-to-noise ratio of the headset further enhances the voice effect of the headset during the call.
  • noise reduction processing may be performed on the voice signal first. Then the noise-reduced voice signal is sent to the terminal device.
  • a possible noise reduction process is differential noise reduction.
  • a differential operation is performed between the voice signal received by the call microphone and the voice signal received by the noise reduction microphone, and the noise reduction voice signal is obtained.
  • the voice signal 21 received by MIC21 includes noise signal a and user voice signal b
  • the voice signal 22 received by MIC22 includes noise signal c and user voice signal d
  • the voice signal 23 received by MIC23 includes noise signal e and user voice signal d.
  • speech signal f For far-field noise, the distances from the noise sources to MIC21, MIC22, and MIC23 are similar, so the intensities of noise signal a, noise signal c, and noise signal e are similar.
  • the distance from the sound source to MIC23 is much smaller than the distance from the sound source to MIC21 and MIC22. Therefore, the strength of the user voice signal b is much greater than that of the user voice signal d and the user voice signal f.
  • the control module subtracts the voice signal 21 from the voice signal 23 to obtain the noise-reduced voice signal, and then the noise-reduced voice signal can be sent to the terminal device.
  • the speech signal after noise reduction is (e+f)-(a+b). Since e is close to a, and f is much larger than b, the noise-reduced speech signal can be approximated as the user's speech signal f. It can be seen that the elimination of environmental noise has been achieved. The signal-to-noise ratio of the speech signal is improved. This further enhances the voice effect of the headset during a call.
  • the right earphone will send the voice signal 22 to the control module, and the control module will subtract the voice signal 22 from the voice signal 23 to obtain the noise-reduced voice signal.
  • the noised voice signal is sent to the terminal device.
  • the speech signal after noise reduction is (e+f)-(c+d). Since e and c are similar, f is much larger than d, therefore, the voice signal after noise reduction can be approximated as the user voice signal f. It can be seen that the elimination of environmental noise has been achieved. The signal-to-noise ratio of the speech signal is improved. This further enhances the voice effect of the headset during a call.
  • both MIC21 and MIC22 are noise reduction microphones
  • the control module obtains the voice signal 23, the voice signal 21 and the voice signal 22, it subtracts the voice signal 21 and the voice signal 22 from twice the voice signal 23, and divides it by 2. What is obtained is the noise-reduced voice signal, and then the noise-reduced voice signal can be sent to the terminal device.
  • the noise-reduced speech signal can be expressed as ((e+f)*2-(a+b)-(c+d))/2. Since e, c, and a are similar, and f is much larger than b and d, the voice signal after noise reduction can be approximated as the user voice signal f. It can be seen that the elimination of environmental noise has been achieved. The signal-to-noise ratio of the speech signal is improved. This further enhances the voice effect of the headset during a call.
  • the microphone on the main headset is a noise-cancelling microphone. Then the secondary headset sends the voice signal a received by the call microphone to the main headset. After the noise reduction microphone on the main headset receives the voice signal b, the main headset performs differential noise reduction, that is, the voice signal a is used to subtract the voice signal b. The noise-reduced voice signal is obtained, and then the noise-reduced voice signal can be sent to the terminal device. If the call microphone is on the primary headset, the microphone on the secondary headset is a noise-canceling microphone. Then the secondary headset sends the voice signal b received by the noise reduction microphone to the main headset. After the call microphone on the main headset receives the voice signal a, the voice signal a can be used to subtract the voice signal b to obtain the voice signal after noise reduction. , and then send the noise-reduced voice signal to the terminal device.
  • noise reduction methods can also be used to reduce noise on the voice signal received by the call microphone.
  • adaptive beamforming algorithm, spectral subtraction, adaptive filtering algorithm, etc. will not be repeated here.
  • a user uses an earphone to make a call, he or she can independently determine whether it is necessary to move the first earphone to a position closer to the sound source according to the environment.
  • the first earphone can also be moved according to the feedback of the calling party. For example, when a user is on a call, the other party may say "can't hear clearly". At this time, the user can move a first earphone to his lips to make the call microphone closer to the sound source and ensure the sound reception effect.
  • the embodiment of the present application further provides a prompting method executed by a terminal device.
  • the terminal device may, based on the detection result of the ambient noise, prompt the user that the headset can be used to make a call. For example, after the terminal device starts a call, it is determined to establish a connection with the headset, and the headset is used to assist the call.
  • the terminal device can acquire ambient noise, for example, acquire the current ambient noise through a noise detection application. If the intensity of the ambient noise is greater than a preset threshold, it is determined that the current ambient noise is relatively large, and the user is prompted to use the headset to talk. For example, as shown in Figure 19, on the call interface, prompt information such as "The current environment is noisy, it is recommended to use a headset to call" is displayed. Alternatively, as shown in Figure 20, a pop-up banner may also be used to prompt. This application does not limit this.
  • the terminal device may also judge whether to prompt the user to use the headset to make a call according to the currently set scene mode. For example, profile mode setting software is installed in the terminal device, and based on the software, the user can set a conference mode, a sleep mode, and the like. After the terminal device starts the call, it is determined that the call is assisted by the headset and is currently in the conference mode (or sleep mode). Then the terminal device can prompt the user that the headset can be used to make a call. For example, as shown in Figure 21, on the call interface, prompt information such as "Currently in conference mode, it is recommended to use a headset to call" is displayed. Alternatively, as shown in Figure 22, a pop-up banner may also be used to prompt. This application does not limit this.
  • the terminal device may also determine, based on the voice signal sent by the earphone, whether to prompt the user that the earphone can be used to make a call. For example, after the terminal device starts a call, it receives a voice signal sent by the headset. When the terminal device detects that the signal-to-noise ratio of the voice signal is less than the preset prompt threshold, the terminal device can prompt the user to use the headset to talk. For example, as shown in Figure 23, on the call interface, prompt information such as "The current voice quality is poor, it is recommended to use a headset to call" is displayed. Alternatively, as shown in Figure 24, a pop-up banner may also be used to prompt. In this regard, the embodiments of the present application do not limit this.
  • FIG. 25 shows a structural block diagram of the headset calling device provided by the embodiment of the present application. For convenience of description, only the part related to the embodiment of the present application is shown.
  • the headset communication device applied to the headset, can be, for example, a chip or a processor in the headset, and a microphone is provided on the first headset of the left headset and the right headset.
  • the headset communication device includes:
  • the switching unit 2501 is configured to determine that the microphone on the first earphone is a call microphone if it is detected that the first earphone is in a non-wearing state when the earphone is in a call state.
  • the communication unit 2502 is configured to send the first voice signal received by the call microphone to the terminal device.
  • the switching unit 2501 is further configured to turn off the speaker in the first earphone when it is determined that the microphone on the first earphone is a call microphone.
  • the switching unit 2501 is specifically configured to detect that the first earphone is in a non-wearing state and the signal-to-noise ratio of the voice signal received by the microphone on the first earphone is greater than that of the current call microphone in the earphone.
  • the signal-to-noise ratio of the received voice signal determines that the microphone on the first earphone is a call microphone.
  • a wearing sensor is provided on the first earphone, and the switching unit 2501 is further configured to determine whether the first earphone is in a non-wearing state according to detection information of the wearing sensor.
  • a switch is provided on the first earphone, and the switching unit 2501 is specifically configured to determine that the first earphone is in a non-wearing state when it is detected that the switch is turned on.
  • the microphone on the first earphone includes a front microphone and a rear microphone
  • the switching unit 2501 is specifically configured to detect the signal-to-noise ratio of the voice signal received by the front microphone, and the rear microphone When the absolute value of the difference between the signal-to-noise ratios of the received speech signals is smaller than the preset difference, it is determined that the first earphone is in a non-wearing state.
  • the microphone on the first earphone includes a first microphone and a second microphone
  • the switching unit 2501 is specifically configured to determine that the first earphone is in a non-wearing state when it is detected that the first microphone is blocked, and Make sure that the second microphone is the call microphone.
  • the switching unit 2501 is specifically configured to determine the microphone with the highest signal-to-noise ratio among the multiple microphones as the call microphone.
  • the switching unit 2501 is specifically configured to determine that at least two microphones among the multiple microphones are call microphones.
  • the communication unit 2502 is specifically configured to synthesize the voice signals respectively received by the at least two call microphones to obtain a first voice signal; and send the first voice signal to the terminal device.
  • the headset communication device further includes a noise reduction unit 2503.
  • the noise reduction unit 2503 is configured to use the voice signal received by at least one microphone on the headset except the call microphone to A voice signal is subjected to noise reduction processing.
  • the communication unit 2502 is specifically configured to send the noise-reduced first voice signal to the terminal device.
  • FIG. 26 it is a schematic diagram of the hardware structure of an earphone provided by the present application.
  • the earphone provided by the embodiment of the present application may be an earphone with multiple microphones, and at least one earphone of the left earphone and the right earphone is provided with a microphone.
  • the earphones provided by the embodiments of the present application may be any type of earphones, such as TWS earphones, neck-worn earphones, or wire-controlled earphones. This application does not limit this.
  • the headset includes: a processor 2601, a memory 2602, a communication module 2603, an input module 2604, a microphone 2605, a speaker 2606, a sensor module 2607 and other components.
  • a processor 2601 the structure of the earphone shown in FIG. 26 does not constitute a limitation on the earphone, and may include more or less components than those shown in the figure, or combine some components, or arrange different components.
  • the left earphone and the right earphone can respectively have one of the above-mentioned processor 2601, memory 2602, communication module 2603, input module 2604, microphone 2605, speaker 2606 and sensor module 2607. or multiple parts.
  • the left earphone and the right earphone of the earphone may be provided with one or more components of the sensor module 2607, the speaker 2606, the microphone 2605 and the input module 2604, respectively.
  • the control module may specifically include modules such as a processor 2601, a memory 2602, a communication module 2603, an input module 2604, and a microphone 2605.
  • the processor 2601 may include at least one of the following types: a central processing unit (Central Processing Unit, CPU), and the processor 2601 may also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), dedicated integrated Circuit (Application Specific Integrated Circuit, ASIC), off-the-shelf Programmable Gate Array (Field-Programmable Gate Array, FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • a memory may also be provided in the processor 2601 for storing instructions and data.
  • the memory in processor 110 is cache memory. This memory may hold instructions or data that have just been used or recycled by the processor 110 . If the processor 2601 needs to use the instruction or data again, it can be called directly from the memory. Repeated access is avoided, and the waiting time of the processor 2601 is reduced, thereby improving the efficiency of the system.
  • the memory 2602 can be used to store software programs and modules, and the processor 2601 executes various functional applications and data processing of the headset by running the software programs and modules stored in the memory 2602 .
  • the memory 2602 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function, and the like; the storage data area may store data created according to the use of the headset, and the like. Additionally, memory 2602 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
  • the communication module 2603 is used for receiving and sending signals under the control of the processor 2601, such as receiving a voice signal of a call partner sent by the terminal device, and sending voice signals to the terminal device.
  • the communication module 2603 may include a radio frequency (Radio Frequency, RF) circuit.
  • RF Radio Frequency
  • the RF circuit includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, an LNA (low noise amplifier), a duplexer, and the like.
  • near-field RF circuits can communicate wirelessly with networks and other devices.
  • the wireless communication may use any communication standard or protocol, including but not limited to short-range communication technologies such as wireless fidelity (WiFi) communication, Bluetooth communication, near-field radio frequency communication, and the like.
  • the input module 2604 can be used to receive input key information, switch information, and generate key signal input and voice signal input related to user setting and function control of the headset.
  • the input module 2604 may include touch keys 2604a and/or physical keys 2604b.
  • the touch key 2604a can collect the user's touch operations on or near it (such as the user's operations on or near the touch key 2604a using a finger, a stylus, or any suitable object or accessory), and according to the The preset program drives the corresponding connection device.
  • the touch panel 2604a may include two parts, a touch detection device and a touch controller.
  • the touch key 2604a can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • Physical keys 2604 may include one or more of volume control keys, switch keys, and the like.
  • Microphone 2605 also called “microphone” or “microphone” is used to convert sound signals into electrical signals.
  • the user can make a sound by approaching the microphone 2605 through the human mouth, and input the sound signal into the microphone 2605 .
  • Multiple microphones 2605 can be set on the headset.
  • Speakers 2606 are used to convert audio electrical signals into sound signals.
  • the sensor module 2607 may include a pressure sensor 2607a, a temperature sensor 2607b, a distance sensor 2607c, a light sensor 2607d, an acceleration sensor 2607e, an in-ear detection sensor 2607f, a front light distance sensor 2607g, a back light distance sensor 2607h, and the like.
  • the pressure sensor 2607a is used to sense the pressure signal, and can convert the pressure signal into an electrical signal.
  • the pressure sensor 2607a may be provided on the display screen 2605.
  • the capacitive pressure sensor may be comprised of at least two parallel plates of conductive material. When a force is applied to the pressure sensor 2607a, the capacitance between the electrodes changes. The headphone determines the intensity of the pressure based on the change in capacitance.
  • the switch operation can be detected by the pressure sensor 2607a, and it can also be detected whether the earphone is in a non-wearing state.
  • the acceleration sensor 2607e can detect the magnitude of the acceleration of the earphone in various directions (generally three axes).
  • the magnitude and direction of gravity can be detected when the headset is stationary. It can also be used to identify the state of the headset and be applied to wear detection.
  • the headset can measure distance by infrared or laser. In some embodiments, the headset may utilize distance sensor 2607c for distance measurement to enable wear detection.
  • the light sensor 2607d is used to measure the light intensity.
  • the headset may utilize the light sensor 2607d to measure light intensity for wear detection.
  • the temperature sensor 2607b is used to detect the temperature.
  • the headset utilizes the temperature detected by the temperature sensor 2607b to enable wear detection.
  • the front light distance sensor 2607g and the back light distance sensor 2607h are used to detect the light distance in the front and rear directions on the earphone.
  • the headset can use the front light distance sensor 2607g and the back light distance sensor 2607h to measure distances to achieve wear detection.
  • the earphone may also include a power supply module, etc., which will not be repeated here.
  • Embodiments of the present application also provide a computer-readable storage medium.
  • the methods described in the above embodiments may be implemented in whole or in part by software, hardware, firmware or any combination thereof. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium.
  • Computer-readable media can include both computer storage media and communication media and also include any medium that can transfer a computer program from one place to another.
  • a storage medium can be any available medium that can be accessed by a computer.
  • computer-readable media may include read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM) Or other types of dynamic storage devices that can store information and instructions, also can be electrically erasable programmable read-only memory (Electrically erasable programmable read-only memory, EEPROM) or other optical disk storage, magnetic disk storage or other magnetic storage devices, or available
  • ROM read-only memory
  • RAM random access memory
  • EEPROM electrically erasable programmable read-only memory
  • optical disk storage magnetic disk storage or other magnetic storage devices
  • coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave
  • coaxial cable, fiber optic cable , twisted pair, DSL or wireless technologies such as infrared, radio and microwave are included in the definition of medium.
  • Disk and disc includes compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and blu-ray disc, where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.
  • the embodiments of the present application also provide a computer program product.
  • the methods described in the above embodiments may be implemented in whole or in part by software, hardware, firmware or any combination thereof. If implemented in software, it may be implemented in whole or in part in the form of a computer program product.
  • a computer program product includes one or more computer instructions. When the above-mentioned computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the above-mentioned method embodiments are generated.
  • the aforementioned computer may be a general purpose computer, a special purpose computer, a computer network, network equipment, user equipment, or other programmable devices.

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Abstract

本申请实施例提供一种耳机通话方法及耳机,涉及终端技术领域,能够在一定程度上增强耳机在通话过程中的语音效果。该方法包括:在通话状态下,若检测到左耳机和右耳机中的第一耳机处于非佩戴状态,则确定第一耳机上的麦克风为通话麦克风;将通话麦克风接收到的第一语音信号发送给终端设备,其中,所述第一耳机为所述左耳机和所述右耳机中的其中一个耳机。

Description

耳机通话方法及耳机
本申请要求于2020年07月24日提交国家知识产权局、申请号为202010734846.3、申请名称为“耳机通话方法及耳机”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及终端技术领域,尤其涉及一种耳机通话方法及耳机。
背景技术
耳机是智能手表、手机、电脑等终端设备的配件。耳机上一般设置有麦克风,用于音频采集,以辅助终端设备进行通话等。然而耳机上的麦克风在接收用户语音时,容易受到所处环境(例如嘈杂的环境,或者声源音量较小的环境等)的影响,导致接收到的语音信号的信噪比较小,影响耳机在通话过程中的语音效果。
发明内容
本申请技术方案提供一种耳机通话方法、耳机、可读存储介质及程序产品,在一定程度上解决了耳机在通话过程中的语音效果较差的问题。
第一方面,本申请技术方案提供一种耳机通话方法,应用于耳机,耳机包括左耳机和右耳机,该方法包括:在通话状态下,若检测到第一耳机处于非佩戴状态,则确定第一耳机上的麦克风为通话麦克风;将通话麦克风接收到的第一语音信号发送给终端设备;其中,所述第一耳机为所述左耳机和所述右耳机中的其中一个耳机。
基于本申请技术方案提供的方法,耳机在通话状态下,可以将处于非佩戴状态的耳机上的麦克风切换为通话麦克风。使得通话麦克风的位置不再受限于耳机的佩戴位置或者控制模块的佩戴位置。那么,在环境噪声较大或者声源音量较小的环境中,当用户需要使用耳机进行通话时,可以将其中一个耳机移动到靠近声源的位置(例如,放到唇边)。如此,耳机可检测到靠近声源的位置的耳机处于非佩戴状态,并将该耳机上的麦克风作为通话麦克风。由于通话麦克风距离声源更近,能够在一定程度上增大通话麦克风接收到的用户语音的强度,从而增大通话麦克风所接收到的语音信号的信噪比。进而增强了耳机在通话过程中的语音效果。
在本申请技术方案中,第一耳机可以理解为在非佩戴状态下内置的麦克风可以作为通话麦克风使用的耳机。可以将左耳机和右耳机均设置为第一耳机,如此,用户在使用耳机进行通话时,可以随机将任意一个耳机摘下,使用该耳机上的麦克风作为通话麦克风。也可以将左耳机和右耳机中的一个设置为第一耳机,假设,将左耳机设置为第一耳机,如此,用户在使用耳机进行通话时,可以摘下左耳机,使用该左耳机上的麦克风作为通话麦克风。
第一语音信号可以为第一耳机上的麦克风被确定为通话麦克风后所接收到的用户的语音信息。
在一种实现方式中,该方法还包括:当确定第一耳机上的麦克风为通话麦克风,关闭第一耳机中的扬声器。
基于这种实现方式,用户使用耳机进行通话时,可以用处于非佩戴状态下的第一耳机上的通话麦克风接收用户的第一语音信号,用另一个耳机上的扬声器播放通话对方的语音信号。
在一种实现方式中,若检测到第一耳机处于非佩戴状态,则确定第一耳机上的麦克风为通话麦克风,包括:若检测到第一耳机处于非佩戴状态,且第一耳机上的麦克风所接收到的语音信号的信噪比大于耳机中当前的通话麦克风所接收到的语音信号的信噪比,则确定第一耳机上的麦克风为通话麦克风。
基于这种实现方式,通过信噪比检测,确定用户第一耳机相比于当前的通话麦克风是否更加靠近声源,从而确定用户是否是为了将第一耳机上的麦克风作为通话麦克风使用,避免误切换。
在一种实现方式中,第一耳机上设置有佩戴传感器,方法还包括:根据佩戴传感器的检测信息,确定第一耳机是否处于非佩戴状态。
在一种实现方式中,第一耳机上设置有开关,当检测到开关开启时,确定第一耳机处于非佩戴状态。
在一种实现方式中,第一耳机上的麦克风包括前置麦克风和后置麦克风,当检测到前置麦克风所接收到的语音信号的信噪比,和后置麦克风所接收到的语音信号的信噪比之差的绝对值小于预设差值时,确定第一耳机处于非佩戴状态。
在一种实现方式中,第一耳机上的麦克风包括第一麦克风和第二麦克风,当检测到第一麦克风被堵住时,确定第一耳机处于非佩戴状态;确定第一耳机上的麦克风为通话麦克风,包括:确定第二麦克风为通话麦克风。
在一种实现方式中,若第一耳机上设置有多个麦克风,确定第一耳机上的麦克风为通话麦克风,包括:确定多个麦克风中信噪比最大的麦克风为通话麦克风。
在一种实现方式中,若第一耳机上设置有多个麦克风,确定第一耳机上的麦克风为通话麦克风,包括:确定多个麦克风中至少两个麦克风为通话麦克风;将通话麦克风接收到的第一语音信号发送给终端设备,包括将至少两个通话麦克风分别接收到的语音信号进行合成,得到第一语音信号;将第一语音信号发送给终端设备。
在一种实现方式中,将通话麦克风接收到的语音信号发送给终端设备之前,该方法还包括:利用耳机上除通话麦克风以外的至少一个麦克风所接收到的语音信号,对通话麦克风所接收到的第一语音信号进行降噪处理;将通话麦克风接收到的第一语音信号发送给终端设备,包括:将降噪后的第一语音信号发送给终端设备。
基于这种实现方式,通过对通话麦克风接收到的第一语音信号进行进一步的降噪处理,以进一步增大第一语音信号的信噪比,进一步增强耳机在通话过程中的语音效果。
第二方面,本申请技术方案提供一种耳机通话方法,应用于耳机,耳机包括左耳机和右耳机,该方法包括:在通话状态下,若检测到第一耳机处于非佩戴状态,且第一耳机上的麦克风所接收到的语音信号的信噪比大于耳机中当前的通话麦克风所接收到的语音信号的信噪比,则确定第一耳机上的麦克风为通话麦克风,并关闭第一耳机 上的扬声器;
其中,若第一耳机上设置有佩戴传感器,则根据佩戴传感器的检测信息,确定第一耳机是否处于非佩戴状态;若第一耳机上设置有开关,则在检测到开关开启时,确定第一耳机处于非佩戴状态;若第一耳机上的麦克风包括前置麦克风和后置麦克风,则在检测到前置麦克风所接收到的语音信号的信噪比,和后置麦克风所接收到的语音信号的信噪比之差的绝对值小于预设差值时,确定第一耳机处于非佩戴状态;若第一耳机上的麦克风包括第一麦克风和第二麦克风,则在检测到第一麦克风的所接收到的语音信号的信噪比的变化量大于或者等于预设阈值时,确定第一耳机处于非佩戴状态;
利用耳机上除通话麦克风以外的至少一个麦克风所接收到的语音信号,对通话麦克风所接收到的第一语音信号进行降噪处理;将降噪后的第一语音信号发送给终端设备;其中,第一耳机为左耳机和右耳机中的一个耳机。
第三方面,本申请技术方案提供一种耳机通话装置,应用于耳机,耳机包括左耳机和右耳机。该耳机通话装置包括:切换单元,用于在耳机处于通话状态下,若检测到第一耳机处于非佩戴状态,则确定第一耳机上的麦克风为通话麦克风;通信单元将通话麦克风接收到的第一语音信号发送给终端设备,第一耳机为左耳机和右耳机中的其中一个耳机。
在一种实现方式中,切换单元,还用于在确定第一耳机上的麦克风为通话麦克风时,关闭第一耳机中的扬声器。
在一种实现方式中,切换单元,具体用于若检测到第一耳机处于非佩戴状态,且第一耳机上的麦克风所接收到的语音信号的信噪比大于耳机中当前的通话麦克风所接收到的语音信号的信噪比,则确定第一耳机上的麦克风为通话麦克风。
在一种实现方式中,第一耳机上设置有佩戴传感器,切换单元,还用于根据佩戴传感器的检测信息,确定第一耳机是否处于非佩戴状态。
在一种实现方式中,第一耳机上设置有开关,切换单元,具体用于在检测到开关开启时,确定第一耳机处于非佩戴状态。
在一种实现方式中,第一耳机上的麦克风包括前置麦克风和后置麦克风,切换单元,具体用于在检测到前置麦克风所接收到的语音信号的信噪比,和后置麦克风所接收到的语音信号的信噪比之差的绝对值小于预设差值时,确定第一耳机处于非佩戴状态。
在一种实现方式中,第一耳机上的麦克风包括第一麦克风和第二麦克风,切换单元,具体用于在检测到第一麦克风的所接收到的语音信号的信噪比的变化量大于或者等于预设阈值时,确定第一耳机处于非佩戴状态,并确定第二麦克风为通话麦克风。
在一种实现方式中,若第一耳机上设置有多个麦克风,切换单元,具体用于确定多个麦克风中信噪比最大的麦克风为通话麦克风。
在一种实现方式中,若第一耳机上设置有多个麦克风,切换单元,具体用于确定多个麦克风中至少两个麦克风为通话麦克风;通信单元,具体用于将至少两个通话麦克风分别接收到的语音信号进行合成,得到第一语音信号;将第一语音信号发送给终端设备。
在一种实现方式中,耳机通话装置还包括降噪单元,用于利用耳机上除通话麦克 风以外的至少一个麦克风所接收到的语音信号,对通话麦克风所接收到的第一语音信号进行降噪处理;通信单元,具体用于将降噪后的第一语音信号发送给终端设备。
第四方面,本申请技术方案提供一种耳机,耳机包括左耳机和右耳机,所述耳机包括处理器、存储器以及存储在所述存储器中并可在所述处理器上运行的计算机程序,所述处理器在执行所述计算机程序时耳机执行如第一方面或第二方面的任意实现实现方式所述的耳机通话方法,第一耳机为左耳机和右耳机中的其中一个耳机。
在一种实现方式中,所述耳机为真无线立体耳机或颈戴式耳机。
在一种实现方式中,所述第一耳机为主耳机。
第五方面,本申请技术方案提供一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被耳机执行时实现第一方面或第二方面的任意实现实现方式所述的耳机通话方法。
第六方面,本申请技术方案提供一种计算机程序产品,当所述计算机程序产品在耳机上运行时,使得所述耳机实现第一方面或第二方面的任意实现方式所述的耳机通话方法。
本申请技术方案提供的第二方面至第六方面的技术效果可以参见上述第一方面或第一方面的各个实现方式的技术效果,此处不再赘述。
附图说明
图1为本申请实施例TWS耳机上的麦克风示意图;
图2为本申请实施例颈戴式耳机上的麦克风示意图;
图3为本申请实施例提供的一种耳机通话方法的流程示意图一;
图4本申请实施例提供的一种TWS耳机的使用场景示意图一;
图5为本申请实施例提供的一种颈戴式耳机的使用场景示意图一;
图6本申请实施例提供的一种TWS耳机的使用场景示意图二;
图7为本申请实施例提供的一种颈戴式耳机的使用场景示意图二;
图8本申请实施例提供的一种颈戴式耳机的使用场景示意图三;
图9为本申请实施例提供的一种TWS耳机的使用场景示意图三;
图10为本申请实施例提供的一种通话麦克风的切换流程示意图一;
图11为本申请实施例提供的一种耳机上设置有多麦克风的使用场景示意图;
图12为本申请实施例提供的一种麦克风的频率响应曲线示意图一;
图13为本申请实施例提供的一种通话麦克风的切换流程示意图二;
图14为本申请实施例提供的一种ANC耳机的结构示意图;
图15为为本申请实施例提供的一种麦克风的频率响应曲线示意图二;
图16为本申请实施例提供的一种颈戴式ANC耳机的结构示意图;
图17为本申请实施例提供的一种通话麦克风的切换流程示意图三;
图18为本申请实施例提供的一种噪声源示意图;
图19为本申请实施例提供的一种使用耳机通话的提示界面示意图一;
图20为本申请实施例提供的一种使用耳机通话的提示界面示意图二;
图21为本申请实施例提供的一种使用耳机通话的提示界面示意图三;
图22为本申请实施例提供的一种使用耳机通话的提示界面示意图四;
图23为本申请实施例提供的一种使用耳机通话的提示界面示意图五;
图24为本申请实施例提供的一种使用耳机通话的提示界面示意图六;
图25为本申请实施例提供的一种耳机通话装置的结构示意图;
图26为本申请实施例提供的一种耳机的硬件结构示意图。
具体实施方式
目前,耳机在辅助终端设备进行通话时,通话麦克风(也可以称为送话麦克风)一般处于相对固定的位置。其中,通话麦克风是指耳机在通话状态下,用于接收用户的语音信号的麦克风。其中,语音信号可以由终端设备发送给与该终端设备通话的通话对方。所谓通话状态是指耳机基于终端设备发送的通话指令,启用通话麦克风接收用户的语音信号。耳机可以将用户的语音信号发送给终端设备,以由终端设备将用户的语音信号发送给通话对方,以及通过终端设备接收通话对方的语音信号,并通过扬声器播放通话对方的语音信号。
例如,对于真无线立体(True Wireless Stereo,TWS)耳机来说,在通话状态下时,一般将主耳机上的麦克风作为通话麦克风。示例性的,如图1所示的TWS耳机,包括左耳机和右耳机。两个耳机上分别设置有至少一个麦克风。图1中以两个耳机上分别设置一个麦克风(即图1中的MIC11和MIC12)进行示例。虽未示出,TWS耳机还可以包括充电仓。
TWS耳机中一个耳机作为主耳机与终端设备(例如,手机、电脑、智能手表等)通信连接。另一个耳机作为副耳机与主耳机通信连接。其中,通信连接可以包括蓝牙连接、wifi连接、近场射频通信连接等。例如,在用户与通话对方通话(例如,可以是用户给通话对方打电话,或者是通话对方给用户打电话)时,主耳机基于终端设备发送通话指令,控制主耳机上的通话麦克风接收用户的语音信号,并将用户的语音信号发送给终端设备,由终端设备将该用户的语音信号发送给通话对方;以及主耳机通过终端设备接收通话对方的语音信号,并将通话对方的语音信号发送给副耳机,通过主耳机和副耳机内的扬声器播放通话对方的语音信号,从而实现用户与通话对方之间的通话。
TWS耳机可以将先被用户佩戴的耳机作为主耳机,后被用户佩戴的耳机作为副耳机。例如,若检测到右耳机比左耳机先被佩戴在用户的耳朵上,则可以将右耳机作为主耳机,左耳机作为副耳机。在通话时,右耳机上的麦克风MIC11作为通话麦克风,进行语音信号的接收。在左耳机和右耳机均处于佩戴状态时,若用户将其中一个耳机摘下,则依旧处于佩戴状态的另一个耳机可以为主耳机。例如,若用户先将右耳机摘下,而左耳机依然处于佩戴状态。则左耳机可以作为主耳机。相应的,在通话时,通话麦克风可以为左耳机上的MIC12。
在一个实施例中,TWS耳机的左耳机与右耳机都可以与终端设备(例如,手机、电脑、智能手表等)通信连接。在这种情况下,可以不用区分主耳机与副耳机。左耳机与右耳机可以通信连接,左耳机、右耳机分别与终端设备通信连接。其中,通信连接可以为蓝牙连接、wifi连接和/或近场射频通信连接等。例如,在通话时,左耳机和右耳机分别通过终端设备接收通话对方的语音信号,这样左耳机和右耳机可以通过内置的扬声器播放通话对方的语音信号;左耳机的麦克风或右耳机的麦克风可以作为通 话麦克风,接收用户的语音信号,并通过终端设备将用户的语音信号发送给通话对方,从而实现用户与通话对方之间的通话。
再例如,针对颈戴式耳机来说,通话麦克风可以设置在颈带的控制模块上。示例性的,如图2所示颈戴式耳机,包括颈带和左右两个耳机。其中,颈带上设置有控制模块,控制模块中设置有麦克风MIC21、通信模块(例如,蓝牙电路、近场射频电路等)、播放控制键(例如,电源键、“+”键、“-”键等)。颈戴式耳机在辅助终端设备进行通话时,控制模块基于终端设备发送的通话指令,控制通话麦克风MIC21接收用户的语音信号,并通过终端设备将用户的语音信号发送给通话对方;以及当控制模块通过终端设备接收到通话对方的语音信号时,将通话对方的语音信号通过颈带中的连接线发送给左右两个耳机,以使得左右耳机内的扬声器同步播放通话对方的语音信号。
当利用耳机在一些噪声较大的环境(例如嘈杂的街道、飞驰的摩托车上、开着音乐或者开着车窗的车内等)中通话时,由于通话麦克风位于相对固定的位置(例如,位于用户耳边、脖颈处等),距离声源(例如,用户唇边)有一定距离,因此通话麦克风在接收用户语音时,所接收到的环境噪声的声音强度可能大于用户语音的声音强度。从而使得接收到的语音信号的信噪比较小,进而影响耳机的语音效果。
又或者,在一些声源音量较小的环境中,通话麦克风也可能无法有效采集用户语音。比如,当用户身处会议场所或者公共的休息场时,用户需要降低说话音量。这种情况下,由于通话麦克风与声源具有一定的距离,导致通话麦克风可能无法有效采集到用户语音,进而影响耳机的语音效果。
为此,本申请实施例提供一种耳机通话方法,耳机在通话状态下,可以将处于非佩戴状态的耳机上的麦克风切换为通话麦克风。使得通话麦克风的位置不再受限于耳机的佩戴位置或者控制模块的佩戴位置。那么,在环境噪声较大或者声源音量较小的环境中,当用户需要使用耳机进行通话时,可以将其中一个耳机移动到靠近声源的位置(例如,放到唇边)。如此,耳机可检测到靠近声源的位置的耳机处于非佩戴状态,并将该耳机上的麦克风作为通话麦克风。由于通话麦克风距离声源更近,能够在一定程度上增大通话麦克风接收到的用户语音的强度,从而增大通话麦克风所接收到的语音信号的信噪比。进而增强了耳机在通话过程中的语音效果。
值得说明的是,本申请实施例提供的耳机通话方法也可以适用于具有多个麦克风的耳机,耳机中至少一个耳机上设置有麦克风。本申请实施例所适用的耳机可以是任何形态的TWS耳机、颈戴式耳机或者线控耳机等类型的耳机。对此,本申请不做限定。
另外,在本申请实施例的描述中,当提及“第一”、“第二”等序数词时,除非根据上下文其确实表达顺序之意,否则应当理解为仅仅是起区分之用。“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其他实施或设计方案更优选或更具优势。确切而言,使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
除非另有说明,本文中“/”一般表示前后关联对象是一种“或”的关系,例如,A/B可以表示A或B。术语“和/或”仅仅是一种描述关联对象的关联关系,表示可以 存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,在本申请的描述中,“多个”是指两个或两个以上。
下面结合具体实施例,对本申请提供的麦克风给切换方法的各种可能的实现方式进行示例性的说明。
如图3所示,为本申请提供的一种耳机通话方法的一个实施例的流程图,该方法包括:
S301,在通话状态,若检测到第一耳机处于非佩戴状态,则确定第一耳机上的麦克风为通话麦克风。
S302,将通话麦克风接收到的第一语音信号发送给终端设备。
其中,第一耳机可以理解为在非佩戴状态下,内置的麦克风可以作为通话麦克风使用的耳机。在一个实施例中,耳机的左耳机和右耳机都可以为第一耳机。那么用户在使用耳机进行通话时,可以将左耳机和右耳机中的任何一个耳机移动到更靠近声源的位置(例如,唇边),以该被移动到更靠近声源的位置的第一耳机上的麦克风切换为通话麦克风。
在另一个示例中,左耳机和右耳机中的一个耳机可以为第一耳机。例如,以第一耳机为左耳机为例,左耳机上设置有麦克风;右耳机上可以设置有麦克风,也可以没有设置麦克风。用户在使用耳机进行通话时,每当需要将通话麦克风靠近声源时,可以将左耳机摘下,并移动到更靠近声源的位置,以使得耳机将其左耳机上的麦克风切换为通话麦克风。
第一语音信号可以是指在第一耳机上的麦克风确定通话麦克风后,该通话麦克风接收到的用户的语音信号。
耳机可以基于终端设备发送的通话指令进入通话状态。例如,当终端设备开始通话,检测到存在与该终端设备建立连接的耳机,终端设备可以向该耳机发送通话指令,以指示该耳机进入通话状态。在通话状态下,耳机会启用麦克风接收用户的第一语音信号,并将用户的第一语音信号发送给与该耳机连接的终端设备,由终端设备将用户的第一语音信号发送给通话对方;以及接收并播放终端设备发送的通话对方的语音信号,以辅助终端设备实现与通话对方之间的通话。
在本申请实施例中,耳机可以在进入通话状态后,进行第一耳机的状态检测。其中,第一耳机的状态可以包括佩戴状态和非佩戴状态。所谓佩戴状态可以理解为第一耳机被佩戴在用户耳朵上的状态。相应的,所谓非佩戴状态可以理解为第一耳机没有被佩戴在用户耳朵上的状态。
如果检测到第一耳机处于非佩戴状态,则确定第一耳机上的麦克风为通话麦克风。其中,第一耳机上可以设置一个麦克风,也可以设置多个麦克风。当第一耳机上设置有多个麦克风时,可以确定其中任一个麦克风为通话麦克风,当然多个麦克风中的至少两个麦克风也可以为通话麦克风。
在一种实现方式中,也可以检测该多个麦克风分别接收到的语音信号的信噪比,然后确定接收到的语音信号的信噪比最大的麦克风为通话麦克风。在一种实现方式中,还可以将该多个麦克风均确定为通话麦克风。相应的,若确定的通话麦克风有多个,则耳机可以将该多个通话麦克风所接收到的语音信号进行合成,然后将合成得到的第 一语音信号发送给终端设备。
示例性的,每个通话麦克风所接收到的语音信号可以包括两个不同频段的信号(假设为高频信号和低频信号)。若第一耳机上设置有3个麦克风(假设分别是MICa、MICb和MICc)。当第一耳机处于非佩戴状态,则确定MICa、MICb和MICc均为通话麦克风。当MICa、MICb和MICc分别接收到语音信号a、语音信号b、语音信号c后,检测每个第一语音信号中的高频信号的信噪比和低频信号的信噪比。若语音信号a中的高频信号a的信噪比最大,语音信号c中的低频信号c的信噪比最大,则将高频信号a和低频信号c合成,得到第一语音信号。最后将该第一语音信号发送给终端设备。
在一个示例中,当确定第一耳机上的麦克风为通话麦克风后,耳机可以关闭第一耳机内的扬声器。而另一个耳机内的扬声器可以维持工作状态,在接收到终端设备发送的通话对方的语音信号,通过扬声器播放。即在通话时,如果第一耳机处于非佩戴状态,则将第一耳机上的麦克风作为通话麦克风,以通过第一耳机上的通话麦克风接收用户的第一语音信号,通过另一个耳机内的扬声器播放通话对方的语音信号。
下面以TWS耳机和颈戴式耳机的使用场景为例,对本申请提供的耳机通话方法进行示例性的说明。
在TWS耳机的使用场景中。假设TWS耳机的左耳机和右耳机分别佩戴在用户耳朵上(即处于佩戴状态)。如图4中的(a)所示,右耳机可以为TWS耳机的主耳机,主耳机与终端设备建立通信连接,左耳机可以为副耳机。终端设备开始通话(比如终端设备接到通话对方的电话,或者终端设备向通话对方拨打电话)时,右耳机可以进入通话状态,启用MIC11作为通话麦克风接收用户的语音信号,并通知左耳机进入通话状态。此时,左耳机和右耳机均处于佩戴状态。右耳机接收终端设备发送的通话对方的语音信号后,将通话对方的语音信号转发给左耳机,以控制左耳机和右耳机内的扬声器同步播放该通话对方的语音信号。MIC11接收到用户的第一语音信号后,由右耳机将该第一语音信号发送给终端设备,以由终端设备将第一语音信号发送给通话对方。
可能由于环境噪声较大或者用户需要降低音量,如图4中的(b)所示,用户将左耳机从左耳上取下,放到唇边。此时,左耳机检测到左耳机处于非佩戴状态。左耳机可以向右耳机发送状态信息。一种可能的实现方式为,基于该状态信息,左耳机和右耳机可以直接进行功能切换,即左耳机切换为主耳机,与终端设备进行通信连接,右耳机切换为副耳机,与终端设备断开通信连接。相应的,通话麦克风从右耳机上的MIC11切换为左耳机上的MIC12。切换后,左耳机可以关闭内置的扬声器,并在接收到终端设备发送的通话对方的语音信号时,将该通话对方的语音信号发送给右耳机,由右耳机通过内置的扬声器播放通话对方的语音信号。在MIC12接收到用户的第一语音信号后,左耳机将用户的第一语音信号发送给终端设备,以由终端设备将第一语音信号发给通话对方。
另一种可能的实现方式为,基于该状态信息,将通话麦克风从MIC11切换为MIC12。右耳机依然是主耳机,左耳机依然是副耳机。切换后,右耳机继续通过扬声器播放通过终端设备接收到的通话对方的语音信号,而左耳机可以关闭内置的扬声器,停止播 放终端设备发送的通话对方的语音信号。或者右耳机在接收到终端设备发送的通话对方的语音信号后,不在将该通话对方的语音信号发送给左耳机。在MIC12接收到用户的第一语音信号后,左耳机将第一语音信号发送给右耳机,由右耳机将第一语音信号通过终端设备发送给通话对方。
可以理解的是,采用本申请实施例提供的耳机通话方法后,在通话状态下,TWS耳机的通话麦克风的位置将不在受限于主耳机的佩戴位置,不被局限在用户耳边。可以随着非佩戴状态的第一耳机被移动到更靠近声源的位置(例如,用户唇边)。相比于用户耳边的位置,通话麦克风在被移动到用户唇边后,接收到的第一语音信号的信噪比更大。因此,在一定程度上能够增强耳机的语音效果。
在颈戴式耳机的使用场景中,如图5中的(a)所示,正常佩戴状态下,颈戴式耳机的左耳机和右耳机分别佩戴在用户的耳朵上。颈带可以挂在用户的脖颈处。其中,控制模块上设置有麦克风MIC21,假设左耳机上设置有麦克风MIC22,右耳机上设置有麦克风MIC23。当终端设备开始通话时,向控制模块发送通话指令。控制模块进基于该通话指令启用MIC21作为通话麦克风接收用户的第一语音信号,并将MIC21接收到的第一语音信号通过终端设备发送给通话对方;以及将通过终端设备接收到的通话对方的语音信号发送给左耳机和右耳机,以控制左耳机和右耳机内的扬声器同步播放通话对方的语音信号。此时,左耳机和右耳机均处于佩戴状态。
可能由于环境噪声较大或者用户需要降低音量,如图5中的(b)所示,用户将左耳机摘下来,放到唇边。此时,左耳机检测到左耳机处于非佩戴状态,左耳机可以向控制模块发送状态信息。基于该状态信息控制模块确定左耳机上的MIC23为通话麦克风(例如,通话麦克风从MIC21切换为MIC23),启动MIC23接收语音信号。MIC23在接收到语音信号后,将该语音信号发送给控制模块,由控制模块将该语音信号发送给终端设备。切换后,控制模块可以控制左耳机关闭内置的扬声器,以使得左耳机停止播放终端设备发送的通话对方的语音信号。或者控制模块在接收到终端设备发送的通话对方的语音信号时,可以将通话对方的语音信号发送给右耳机,而不发送给左耳机。
可以理解的是,采用本申请实施例提供的耳机通话方法后,在通话状态下,颈戴式耳机的通话麦克风的位置将不在受限于颈带上控制模块的佩戴位置,不被局限在用户脖颈处。可以随着非佩戴状态的第一耳机被移动到更靠近声源的位置(例如,用户唇边)。相比于用户脖颈处的位置,通话麦克风在被移动到用户唇边后,接收到的第一语音信号的信噪比更大。因此,在一定程度上能够增强耳机的语音效果。
在一种实现方式中,例如,用户在佩戴颈戴式耳机时,将右耳机佩戴在耳朵上,将左耳机随着颈带挂在胸前。在这种情况下,左耳机的麦克风作为通话麦克风,通过通话麦克风接收用户的第一语音信号,通过右耳机的扬声器播放通话对方的语音信号。
在一些情况下,第一耳机处于非佩戴状态,可能并不是用户为了将第一耳机上的麦克风作为通话麦克风使用(例如,通过移动第一耳机以将通话麦克风移动到更靠近声源的位置)。例如,由于碰撞或者佩戴不当,导致第一耳机掉下来。这种情况下,若耳机依然将通话麦克风切换到第一耳机上,通话麦克风则会距离声源更远,从而导致通话麦克风接收到的语音信号的信噪比更小。因此,为了避免误切换,耳机在确定 第一耳机处于非佩戴状态后,可以进一步进行信噪比检测。检测第一耳机上的麦克风所接收到的第一语音信号的信噪比,与当前的通话麦克风所接收到的语音信号的信噪比的大小。在第一耳机上的麦克风所接收到的第一语音信号的信噪比,大于当前的通话麦克风所接收到的语音信号的信噪比时,将通话麦克风切换为第一耳机上的麦克风。
例如,图4中的(b)中,左耳机检测到左耳机处于非佩戴状态后。左耳机可以将MIC12接收到的语音信号和状态信息一起发给右耳机。右耳机基于状态信息确定左耳机处于非佩戴状态,并比较MIC12接收到的语音信号的信噪比12和当前的通话麦克风MIC11接收到的语音信号的信噪比11。若信噪比12大于信噪比11,说明MIC12比当前的通话麦克风MIC11更靠近声源,那么左耳机和右耳机可以将通话麦克风从MIC11切换为MIC12。若信噪比12小于或等于信噪比11,说明MIC12并没有比当前的通话麦克风MIC11更靠近声源,那么MIC11继续作为通话麦克风。
再例如,图5中的(b)中,左耳机检测到左耳机处于非佩戴状态后,可向控制模块发送状态信息和MIC23接收到的语音信号。控制模块基于状态信息确定左耳机处于非佩戴状态,并比较MIC23接收到的语音信号的信噪比23和当前的通话麦克风MIC21接收到的语音信号的信噪比21。若信噪比23大于信噪比21,说明MIC23比当前的通话麦克风MIC21更靠近声源,那么控制模块则可以将通话麦克风从MIC21切换为MIC23。若信噪比23小于或等于信噪比21,说明MIC23并没有比当前的通话麦克风MIC21更靠近声源,那么MIC21继续作为通话麦克风。
下面基于耳机不同的设置、不同的结构对上述通话麦克风的切换流程进行示例性的说明。作为示例,下面介绍4种可能的实现方式。
方式一,基于佩戴传感器检测第一耳机的状态,进行通话麦克风的切换。
耳机的左耳机和/或右耳机上分别设置有佩戴传感器。例如,如图6所示,颈戴式耳机的左耳机内设置有佩戴传感器1,右耳机内设置有佩戴传感器2,该颈戴式耳机的左耳机和右耳机可以均为第一耳机。如图7所示,TWS耳机的左耳机内设置有佩戴传感器3,右耳机内设置有佩戴传感器4,该TWS耳机的左耳机和右耳机均为第一耳机。耳机可以利用佩戴传感器检测耳机的是处于佩戴状态还是非佩戴状态。其中,佩戴传感器可以是压力传感器、温度传感器、距离传感器、光线传感器、加速度传感器、入耳检测传感器等;或者佩戴传感器可以包括正面光线距离感应器、背面光线距离感应器和运动加速度感应器等;或者佩戴传感器也可以为其他类型的传感器。对此,本申请不作限制。
示例性的,若耳机内设置的佩戴传感器为压力传感器。那么,当用户将耳机佩戴在耳朵上时,耳机则会受到耳朵的挤压,使得耳机内的压力传感器产生压力值信号。比如,可以设置压力值门限,在压力传感器产生的压力值信号大于或者等于该压力值门限时,判定耳机处于佩戴状态。在压力传感器产生的压力值信号小于该压力值门限时,确定耳机处于非佩戴状态。
若耳机内设置的佩戴传感器为温度传感器。那么,当用户将耳机佩戴在耳朵上时,耳机内的温度传感器则会产生与人体温度对应的温度值信号。比如,可以设置与人体体温对应的温度值区间,在温度传感器产生的温度值信号在该温度值区间内时,判定耳机处于佩戴状态。在温度传感器产生的温度值信号不在该温度值区间内时,确定耳 机处于非佩戴状态。
若耳机内设置的佩戴传感器为距离传感器。那么,当用户将耳机佩戴在耳朵上时,耳机则会受到耳朵的挤压,使得耳机内的距离传感器检测到距离值信号变小。比如,可以设置距离值门限,在距离传感器产生的距离值信号大于或者等于该距离值门限时,判定耳机处于非佩戴状态。在距离传感器产生的距离值信号小于该距离值门限时,确定耳机处于佩戴状态。其中,若耳机为TWS耳机,可以在第一耳机从充电仓被取出后,检测距离传感器产生的距离值信号是否大于或者等于距离值门限。
若耳机内设置的佩戴传感器为光线传感器。那么,当用户将耳机佩戴在耳朵上时,耳机内的光线传感器检测到的光线强度较小。在本申请中,可以设置光强门限,在光线传感器产生的光强信号大于或者等于该光强门限时,判定耳机处于非佩戴状态。在光线传感器产生的光强信号小于该光强门限时,确定耳机处于佩戴状态。其中,若耳机为TWS耳机,可以在耳机从充电仓被取出后,检测光线传感器产生的光强信号是否小于光强值门限。
若耳机内设置的佩戴传感器为加速度传感器。那么,用户将耳机拾起往耳朵上佩戴,以及将耳机从耳朵上摘下,都会使得耳机内的加速度传感器测量到的加速度变化率发生变化。在本申请中,可以设置分别与摘下耳机时对应的加速度变化率区间,以及与戴上耳机时对应的加速度变化率区间。然后基于这两个加速度变化区间与耳机内加速度传感器产生的加速度信号,确定耳机处于佩戴状态还是非佩戴状态。
若佩戴传感器包括:正面光线距离感应器、背面光线距离感应器和运动加速度感应器,当把耳机从充电盒里面拿出来,运动加速度感应器感应到了速度的变化,当把耳机戴上,耳朵遮住了前后两个光线距离感应器,距离达到预设值,耳机判定入耳,处于佩戴状态。其中,预设值可以根据实际情况设置不同的值,本发明实施例对此不做限制。
示例性的,以图6所示的颈戴式耳机为例,在通话状态下,佩戴传感器1和佩戴传感器2可以分别周期性检测所属耳机的状态,并将获取到的检测信息发送给控制模块。当控制模块基于检测信息确定其中一个耳机(假设为右耳机)处于佩戴状态,另一个耳机(假设为左耳机)处于非佩戴状态时,控制模块可确定左耳机可以执行通话麦克风的切换。在一种实现方式中,为了避免误触发,控制模块可以先触发信噪比检测,比较当前的通话麦克风MIC21和MIC23所接收到的语音信号的信噪比。若检测到MIC23所接收到的语音信号的信噪比较大,则将MIC23确定为通话麦克风。
若用户又将左耳机戴回左耳上,控制模块基于佩戴传感器1和佩戴传感器2发送的检测信息确定左耳机和右耳机均处于佩戴状态,则可以不做响应。MIC23依然为通话麦克风。若用户是想换个耳朵听电话,在将左耳机戴回左耳上后,又将右耳机取下来,移动到唇边。此时,控制模块则可以根据佩戴传感器1和佩戴传感器2发送的检测信息确定左耳机处于佩戴状态,右耳机处于非佩戴状态。控制模块即可再次触发信噪比检测,比较当前的通话麦克风MIC23和MIC22所接收到的语音信号的信噪比。若检测到MIC22所接收到的语音信号的信噪比较大,则将MIC22确定为通话麦克风。
以图7所示的TWS耳机为例,在通话状态下,佩戴传感器3和佩戴传感器4分别周期性检测所属耳机的状态。当副耳机(假设为左耳机)内的佩戴传感器3检测到左 耳机处于非佩戴状态,则将获取到的检测信息发送给主耳机(假设为右耳机)。当右耳机根据佩戴传感器4的检测信息确定右耳机处于佩戴状态时,即可触发信噪比检测,比较当前的通话麦克风MIC11和MIC12所接收到的语音信号的信噪比。若检测到MIC12所接收到的语音信号的信噪比较大,右耳机和左耳机则可以将MIC12确定为通话麦克风。例如,左耳机切换为主耳机,右耳机切换为副耳机。或者,将通话麦克风从MIC11切换为MIC12。
若用户又将左耳机戴回左耳上,MIC12可以继续作为通话麦克风接收语音信号。若用户是想换个耳朵听电话,在将左耳机戴回左耳上后,又将右耳机取下来,移动到唇边。若左耳机和右耳机直接进行主耳机和副耳机的功能切换,即此时左耳机为主耳机,右耳机为副耳机。那么佩戴传感器4在检测到右耳机处于非佩戴状态时,右耳机则可以将佩戴传感器4获取的检测信息发送给左耳机。当左耳机根据佩戴传感器3当前获取的检测信息确定左耳机处于佩戴状态时,即可触发信噪比检测,比较当前的通话麦克风MIC12和MIC11所接收到的语音信号的信噪比。若检测到MIC11所接收到的语音信号的信噪比较大,右耳机切换为主耳机,左耳机切换为副耳机。相应的,通话麦克风从MIC12切换为MIC11。
若左耳机和右耳机直接进行通话麦克风的切换,即此时左耳机依然为副耳机,右耳机依然为主耳机,而通话麦克风为MIC12。那么,佩戴传感器4在检测到右耳机处于非佩戴状态时,若右耳机未接收到左耳机发送的检测信息,或者接收到的检测信息指示左耳机处于佩戴状态。右耳机即可触发噪比检测流程,比较当前的通话麦克风MIC12和MIC11所接收到的语音信号的信噪比。若检测到MIC11所接收到的语音信号的信噪比较大,将通话麦克风从MIC12切换为MIC11。
方式二,基于开关检测耳机的状态,进行通话麦克风的切换。
耳机的左耳机和/或右耳机上设置有开关。例如,如图8所示,颈戴式耳机的左耳机上设置有开关1,右耳机上设置有开关2。如图9所示,TWS耳机的左耳机上设置有开关3,右耳机上设置有开关4。其中,开关可以是触摸键、按压开关、拨动开关等。若开关为触摸键,则可以根据触摸规则,例如设置双击短按、三击短按、单击长按等表示开关被开启。
当用户需要将通话麦克风移动到更靠近声源的位置时,可以通过开启第一耳机上的开关来触发通话麦克风的切换。耳机可以基于开关信息确定对应第一耳机的状态。即当耳机检测到第一耳机上的开关开启时,可认为该第一耳机处于非佩戴状态,可以进行通话麦克风的切换。
示例性的,图8所示的颈戴式耳机的麦克风切换流程可以如图10所示,包括:
S1001,开关1开启。
在通话过程中,当用户需要使用左耳机上的麦克风时,用户将左耳机移动到靠近声源的位置,并开启左耳机上的开关1。此时,左耳机检测到用于指示开关1开启的开关信息,并将该开关信息发送给控制模块。控制模块根据该开关信息确定左耳机处于非佩戴状态,可以进行通话麦克风的切换。控制模块可以直接将通话麦克风从MIC21切换为MIC23。在一种实现方式中,为了避免误操作(例如,用户无意间触碰到开关1,导致开关1开启的操作),控制模块可以触发信噪比检测,执行步骤S1002。
S1002,检测MIC23所接收到的语音信号的信噪比是否大于当前的通话麦克风MIC21所接收到的语音信号的信噪比。
如果MIC23所接收到的语音信号的信噪比大于当前的通话麦克风MIC21所接收到的语音信号的信噪比,说明MIC23相比于MIC21距离声源更近,可以理解为用户将MIC23移动到距离声源更近的位置。那么,控制模块则可以执行步骤S1003,将通话麦克风从MIC21切换为MIC23。
如果MIC23所接收到的语音信号的信噪比小于或者等于当前的通话麦克风MIC21所接收到的语音信号的信噪比,说明MIC23并没有比MIC21距离声源更近,即用户并未将MIC23移动到距离声源更近的位置。那么,控制模块则可以不执行切换操作,执行S1004,确定通话麦克风MIC21保持不变。
假设,通话麦克风切换为MIC23后,用户想要换个耳朵听电话。用户将左耳机戴回左耳上后,又将右耳机取下来,移动到唇边,并开启开关2。此时,右耳机检测到用于指示开关2开启的开关信息,并将该开关信息发送给控制模块。控制模块根据该开关信息确定右耳机处于非佩戴状态,可以进行通话麦克风的切换。控制模块则可以直接将通话麦克风从MIC23切换为MIC22。在一种实现方式中,为了避免误操作,控制模块可以触发信噪比检测,检测MIC22所接收到的语音信号的信噪比是否大于当前的通话麦克风MIC23所接收到的语音信号的信噪比。如果检测到MIC22所接收到的语音信号的信噪比更大,则将通话麦克风从MIC23切换到MIC22。
同理,对于TWS耳机来说,若TWS耳机的第一耳机上设置有开关,一旦第一耳机上的开关被开启,即可确定该第一耳机处于非佩戴状态,具体切换可以进行通话麦克风的切换。此处不再赘述。
方式三、基于多麦克风检测第一耳机的状态,进行通话麦克风的切换。
用户将第一耳机捏到手中,如果手指堵住了第一耳机上的麦克风,该麦克风所接收到的语音信号的信噪比将会明显变小。例如,如图11中的(a)所示,TWS耳机的左耳机上设置有MIC111和MIC112,右耳机上设置有MIC113和MIC114。如图11中的(b)所示,用户在捏住左耳机时,可以用手指将MIC112堵住。如图12所示,MIC112未被堵住时,所接收到的语音信号的频率响应曲线为频率响应曲线1。MIC112被堵住后,所接收到的语音信号的频率响应曲线为频率响应曲线2。可以看出,在低频(例如1000Hz以下)频段中,相比于未被堵住的MIC112,被堵住的MIC112所接收到的语音信号的信噪比明显减小。当用户将第一耳机捏在手中时,第一耳机很可能没有被佩戴在耳朵上。基于这一原理,若第一耳机上设置有多个麦克风(包括第一麦克风和第二麦克风),则还可以根据第一麦克风所接收到的语音信号的信噪比的变化,检测第一麦克风是否被堵住,从而实现对第一耳机的状态检测。并在第一耳机处于非佩戴状态时,确定第二麦克风为通话麦克风。当然,第二麦克风可以有一个,也可以有多个。若第二麦克风有多个,则可以确定其中至少一个第二麦克风为通话麦克风。
示例性的,图11所示的TWS耳机的麦克风切换流程可以如图13所示,包括:
S1301,检测到MIC112所接收到的语音信号的信噪比变化量是否大于或者等于预设阈值。
假设,右耳机的第一麦克风为MIC114,第二麦克风为MIC113,左耳机的第一麦 克风为MIC112,第二麦克风为MIC111。若右耳机为主耳机,左耳机为副耳机,当前的通话麦克风为MIC113。在通话过程中,当用户需要使用左耳机上的MIC111作为通话麦克风时,用户将左耳机按照图11中的(b)捏住,然后移动到靠近声源的位置。此时,左耳机将MIC113和MIC114接收到的语音信号发送给右耳机。右耳机检测MIC113接收到的语音信号的信噪比是否发生变化,若变化量大于或者等于预设阈值(比如,20dB,15dB),表示MIC113被堵住,右耳机则可以确定左耳机处于非佩戴状态。此时,右耳机则可以和左耳机将通话麦克风从MIC113切换未MIC111。为了避免误操作(例如,用户无意间用手指堵住MIC112,或者仅仅是为了摘下左耳机),右耳机可以触发信噪比检测,执行以下步骤S1302。当然,若变化量小于预设阈值,右耳机则可以不执行相关切换操作,执行S1304,确定通话麦克风MIC113保持不变。
S1302,检测MIC111所接收到的语音信号的信噪比是否大于当前的通话麦克风MIC113所接收到的语音信号的信噪比。
如果MIC111所接收到的语音信号的信噪比大于当前的通话麦克风MIC1113所接收到的语音信号的信噪比,说明MIC111相比于MIC113距离声源更近,可以理解为用户将MIC111移动到距离声源更近的位置。那么,右耳机则可以执行步骤S1303,将通话麦克风从MIC113切换为MIC111。即右耳机可以与左耳机直接进行功能切换,也可以仅切换通话麦克风。
如果MIC111所接收到的语音信号的信噪比小于或者等于当前的通话麦克风MIC113所接收到的语音信号的信噪比,说明MIC111并没有比MIC113距离声源更近,即用户并未将MIC111移动到距离声源更近的位置。那么,右耳机则可以不执行切换操作,执行S1304,确定通话麦克风MIC113保持不变。
同理,对于颈戴式耳机说,若颈戴式耳机的耳机上设置右多个麦克风,可以设置其中一个麦克风用于在通话过程中检测耳机的状态。控制模块可以基于第一耳机上指定的麦克风所接收到的语音信噪比的变化量,确定第一耳机是否处于非佩戴状态,进而控制通话麦克风的切换。此处不再赘述。
方式四、针对主动降噪(Active Noise Cancellation,ANC)耳机,利用ANC耳机上的前置麦克风和后置麦克风所接收到的语音信号的信噪比变化检测第一耳机的状态,进行通话麦克风的切换。
如图14所示,为一种ANC耳机中的一个第一耳机的示意图。第一耳机上设置有前置麦克风MIC141和后置麦克风MIC142。当第一耳机佩戴在用户耳朵上时,MIC141一般处于耳朵外面,而MIC142一般位于耳朵内部(可以理解为,MIC142被耳朵堵住)。如图15所示,在佩戴状态下,MIC141所接收到的语音信号的频率响应曲线可以为频率响应曲线3,MIC142所接收到的语音信号的频率响应曲线可以为频率响应曲线4。可以看出,在低频频段(例如,1000Hz以下的频段)中,MIC142所接收到的语音信号的信噪比明显小于MIC141所接收到的语音信号的信噪比。而当第一耳机处于非佩戴状态时,MIC141和MIC142由于处于相同的环境中,因此MIC142所接收到的语音信号的信噪比与MIC141所接收到的语音信号的信噪比的差异会减小。基于这一原理,若耳机为ANC耳机,则耳机可以利用第一耳机上的前置麦克风和后置麦克风所接收到的语音信号的信噪比或者强度变化检测第一耳机的状态。
示例性的,如图16所示的颈戴式耳机,左耳机上设置有前置麦克风(MIC141)和后置麦克风(MIC142),右耳机上设置有前置麦克风(MIC143)和后置麦克风(MIC144),控制模块上设置有MIC145。以信噪比变化为例,该颈戴式耳机的麦克风切换流程可以如图17所示,包括:
S1601,检测MIC141和MIC142所接收到的语音信号的信噪比是否满足非佩戴条件。
在通话过程中,当用户需要使用左耳机上的麦克风作为通话麦克风时,用户将左耳机拿在手中,移动到靠近声源的位置。此时,左耳机可以将MIC141和MIC142所接收到的语音信号发送给控制模块,由控制模块判断MIC141和MIC142所接收到的语音信号的信噪比是否满足非佩戴条件,从而确定左耳机是否处于非佩戴状态。其中,非佩戴条件可以为MIC141和MIC142所接收到的语音信号的信噪比之差的绝对值小于预设差值(例如,3dB、5dB等)。当然,左耳机也可以自己判断MIC141和MIC142所接收到的语音信号的信噪比是否满足非佩戴条件,然后在满足非佩戴条件的情况下通知控制模块执行通话麦克风切换。
如果控制模块确定左耳机处于非佩戴状态,控制模块可以将通话麦克风从MIC145切换为MIC141或者MIC142。在本申请实施例中,可以预先指定可以将前置麦克风作为通话麦克风,或者可以将后置麦克风作为通话麦克风。假设,指定前置麦克风以作为通话麦克风,那么,控制模块可以将通话麦克风从MIC145切换为MIC141。在一种实现方式中,为了避免误操作,控制模块可以触发信噪比检测,可以执行以下步骤S1602。
S1602,检测MIC141所接收到的语音信号的信噪比是否大于当前的通话麦克风MIC145所接收到的语音信号的信噪比。
如果MIC141所接收到的语音信号的信噪比大于当前的通话麦克风MIC145所接收到的语音信号的信噪比,说明MIC141相比于MIC145距离声源更近,可以理解为用户将MIC141移动到距离声源更近的位置。那么,控制模块则可以执行步骤S1603,将通话麦克风从MIC141切换为MIC145。
如果MIC141所接收到的语音信号的信噪比小于或者等于当前的通话麦克风MIC145所接收到的语音信号的信噪比,说明MIC141并没有比MIC145距离声源更近,即用户并未将MIC141移动到距离声源更近的位置。那么,控制模块则可以不执行切换操作,执行S1604,确定通话麦克风MIC145保持不变。
可以理解的是,如果通话麦克风切换为MIC141后,用户想要换个耳朵听电话。用户将左耳机戴回左耳上后,又将右耳机取下来,移动到唇边。此时,右耳机上的MIC143和MIC144所接收到的语音信号的信噪比满足非佩戴条件,则右耳机处于非佩戴状态,可以进行通话麦克风的切换。控制模块可以控制模块可以将通话麦克风从MIC141切换为MIC143。在一种实现方式中,为了避免误操作,控制模块可以触发信噪比检测,检测MIC141所接收到的语音信号的信噪比是否大于当前的通话麦克风MIC143所接收到的语音信号的信噪比。如果检测到MIC143所接收到的语音信号的信噪比更大,则将通话麦克风从MIC141切换到MIC143。
同理,对于TWS耳机来说,若TWS耳机为ANC耳机,TWS耳机的第一耳机上 设置右前置麦克风和后置麦克风。基于前置麦克风和后置麦克风所接收到的语音信号的信噪比,即可获知耳机是否处于非佩戴状态。一旦前置麦克风和后置麦克风所接收到的语音信号的信噪比满足非佩戴条件,则可确定该耳机处于非佩戴状态,可以进行通话麦克风的切换。具体切换流程此处不再赘述。
综上可知,采用本申请实施例提供耳机通话方法,可以在通话状态下,将处于非佩戴状态的第一耳机上的麦克风切换为通话麦克风。使得通话麦克风的位置不再受限于耳机的佩戴位置或者控制模块的佩戴位置。那么,在环境噪声较大或者声源音量较小的环境中,当用户需要使用耳机进行通话时,可以将第一耳机移动到靠近声源的位置(例如,放到唇边)。如此,耳机即可检测到靠近声源的位置的第一耳机处于非佩戴状态,并将该第一耳机上的麦克风作为通话麦克风。由于通话麦克风距离声源更近,能够在一定程度上增大通话麦克风接收到的用户语音的强度,从而增大第一语音信号的信噪比。进而增强了耳机在通话过程中的语音效果。
在一种实现方式中,在将通话麦克风切换到非佩戴状态的第一耳机上之后,还可以对通话麦克风接收到的第一语音信号进行进一步的降噪处理,以进一步增大第一语音信号的信噪比,进一步增强耳机在通话过程中的语音效果。
示例性的,耳机在向终端设备发送通话麦克风接收到的语音信号之前,可以先对该语音信号进行降噪处理。然后将降噪后的语音信号发送给终端设备。
例如,一种可能的降噪处理方式为差分降噪。将耳机上除通话麦克风以外的至少一个剩余的麦克风作为降噪麦克风。将通话麦克风接收到的语音信号与降噪麦克风所接收到的语音信号做差分运算,得到的就是降噪后的语音信号。
示例性的,如图18所示,颈戴式耳机中左耳机被移动到用户唇边。MIC21接收到的语音信号21中包括噪声信号a和用户语音信号b,MIC22接收到的语音信号22中包括噪声信号c和用户语音信号d,MIC23接收到的语音信号23中包括噪声信号e和用户语音信号f。对于远场的噪声来讲,噪声源到达MIC21、MIC22和MIC23的距离相近,因此,噪声信号a、噪声信号c和噪声信号e的强度相似。对于近场的用户语音来讲,声源到达MIC23的距离,远小于声源到达MIC21和MIC22的距离。因此,用户语音信号b的强度远大于用户语音信号d和用户语音信号f。
若设置MIC21为降噪麦克风,则控制模块用语音信号23减去语音信号21,得到的就是降噪后的语音信号,随后即可将降噪后的语音信号发送给终端设备。可以理解的是,降噪后的语音信号为(e+f)-(a+b)。由于e和a相近,f远大于b,因此,降噪后的语音信号可以近似为用户语音信号f。可见实现了环境噪声的消除。提高了语音信号的信噪比。进而增强了耳机在通话过程中的语音效果。
同理,若设置MIC22为降噪麦克风,则右耳机将语音信号22发送给控制模块,控制模块用语音信号23减去语音信号22,得到的就是降噪后的语音信号,随后即可将降噪后的语音信号发送给终端设备。相应的,降噪后的语音信号为(e+f)-(c+d)。由于e和c相近,f远大于d,因此,降噪后的语音信号可以近似为用户语音信号f。可见实现了环境噪声的消除。提高了语音信号的信噪比。进而增强了耳机在通话过程中的语音效果。
若MIC21和MIC22均为降噪麦克风,则控制模块获取到语音信号23、语音信号 21和语音信号22后,用两倍的语音信号23减去语音信号21和语音信号22,再除以2,得到的就是降噪后的语音信号,随后即可将降噪后的语音信号发送给终端设备。相应的,降噪后的语音信号可以表示为((e+f)*2-(a+b)-(c+d))/2。由于e、c、a相近,f远大于b和d,因此,降噪后的语音信号可以近似为用户语音信号f。可见实现了环境噪声的消除。提高了语音信号的信噪比。进而增强了耳机在通话过程中的语音效果。
同理,对于TWS耳机来说,若通话麦克风位于副耳机上,主耳机上的麦克风为降噪麦克风。则副耳机将通话麦克风接收到的语音信号a发送给主耳机,主耳机上的降噪麦克风接收到语音信号b后,由主耳机执行差分降噪,即利用语音信号a减去语音信号b,得到降噪后的语音信号,随后即可将降噪后的语音信号发送给终端设备。若通话麦克风位于主耳机上,副耳机上的麦克风为降噪麦克风。则副耳机将降噪麦克风接收到的语音信号b发送给主耳机,主耳机上的通话麦克风接收到语音信号a后,即可利用语音信号a减去语音信号b,得到降噪后的语音信号,随后将降噪后的语音信号发送给终端设备。
此外,还可以采用其他降噪方法对通话麦克风接收到的语音信号进行降噪。例如自适应波束形成算法、谱减法、自适应滤波算法等,此处不再一一赘述。
在一个场景中,用户利用耳机通话时,可以自主根据环境判断是否需要将第一耳机移动到更靠近声源的位置。也可以根据通话对方的反馈来移动第一耳机。比如说,用户在通话时,对方可能会说“听不清”,此时,用户就可以将一个第一耳机移动到唇边,以使得通话麦克风更靠近声源,保证收音效果。
在一种实现方式中,基于本申请实施例提供的耳机通话方法,本申请实施例还提供一种由终端设备执行的提示方式。
示例性的,终端设备可以基于对环境噪声的检测结果,来提示用户可以使用耳机通话。例如,终端设备开始通话后,确定与耳机建立连接,并由耳机辅助通话。终端设备可以获取环境噪声,例如,通过噪声检测应用获取当前的环境噪声。若环境噪声的强度大于一个预设的阈值,则确定当前环境噪声较大,并提示用户可以使用耳机通话。例如,如图19所示,在通话界面,显示“当前环境噪声较大,建议使用耳机通话”等提示信息。又或者,如图20所示,也可以通过弹出横幅提示。对此,本申请不作限制。
在一种实现方式中,终端设备也可以根据当前设置的情景模式来判断是否提示用户可以使用耳机通话。比如说,终端设备中安装有情景模式设置软件,基于该软件,用户可以设置会议模式、睡眠模式等。终端设备开始通话后,确定由耳机辅助通话,且当前处于会议模式(或者睡眠模式)。那么终端设备可以提示用户可以使用耳机通话。例如,如图21所示,在通话界面,显示“当前为会议模式,建议使用耳机通话”等提示信息。又或者,如图22所示,也可以通过弹出横幅提示。对此,本申请不作限制。
在一种实现方式中,终端设备也可以基于耳机发送的语音信号判断是否提示用户可以使用耳机通话。比如说,终端设备开始通话后,接收到耳机发送的语音信号。终端设备检测到该语音信号的信噪比小于预设的提示阈值,那么终端设备可以提示用户 可以使用耳机通话。例如,如图23所示,在通话界面,显示“当前语音质量较差,建议使用耳机通话”等提示信息。又或者,如图24所示,也可以通过弹出横幅提示。对此,本申请实施例对此不作限制。
对应于上文实施例所述的耳机通话方法,图25示出了本申请实施例提供的耳机通话装置的结构框图,为了便于说明,仅示出了与本申请实施例相关的部分。
该耳机通话装置,应用于耳机,例如,可以是耳机中的芯片或者处理器,耳机的左耳机和右耳机中的第一耳机上设置有麦克风。参见图25,该耳机通话装置包括:
切换单元2501,用于在耳机处于通话状态下,若检测到第一耳机处于非佩戴状态,则确定第一耳机上的麦克风为通话麦克风。
通信单元2502,用于将通话麦克风接收到的第一语音信号发送给终端设备。
在一种实现方式中,切换单元2501,还用于在确定第一耳机上的麦克风为通话麦克风时,关闭第一耳机中的扬声器。
在一种实现方式中,切换单元2501,具体用于若检测到第一耳机处于非佩戴状态,且第一耳机上的麦克风所接收到的语音信号的信噪比大于耳机中当前的通话麦克风所接收到的语音信号的信噪比,则确定第一耳机上的麦克风为通话麦克风。
在一种实现方式中,第一耳机上设置有佩戴传感器,切换单元2501,还用于根据佩戴传感器的检测信息,确定第一耳机是否处于非佩戴状态。
在一种实现方式中,第一耳机上设置有开关,切换单元2501,具体用于在检测到开关开启时,确定第一耳机处于非佩戴状态。
在一种实现方式中,第一耳机上的麦克风包括前置麦克风和后置麦克风,切换单元2501,具体用于在检测到前置麦克风所接收到的语音信号的信噪比,和后置麦克风所接收到的语音信号的信噪比之差的绝对值小于预设差值时,确定第一耳机处于非佩戴状态。
在一种实现方式中,第一耳机上的麦克风包括第一麦克风和第二麦克风,切换单元2501,具体用于在检测到第一麦克风被堵住时,确定第一耳机处于非佩戴状态,并确定第二麦克风为通话麦克风。
在一种实现方式中,若第一耳机上设置有多个麦克风,切换单元2501,具体用于确定多个麦克风中信噪比最大的麦克风为通话麦克风。
在一种实现方式中,若第一耳机上设置有多个麦克风,切换单元2501,具体用于确定多个麦克风中至少两个麦克风为通话麦克风。
通信单元2502,具体用于将至少两个通话麦克风分别接收到的语音信号进行合成,得到第一语音信号;将第一语音信号发送给终端设备。
在一种实现方式中,耳机通话装置还包括降噪单元2503,降噪单元2503,用于利用耳机上除通话麦克风以外的至少一个麦克风所接收到的语音信号,对通话麦克风所接收到的第一语音信号进行降噪处理。
通信单元2502,具体用于将降噪后的第一语音信号发送给终端设备。
参见图26,为本申请提供的一种耳机的硬件结构示意图。本申请实施例提供的耳机可以是具有多个麦克风的耳机,左耳机和右耳机中至少一个耳机上设置有麦克风。本申请实施例所提供耳机可以是任何形态的TWS耳机、颈戴式耳机或者线控耳机等类 型的耳机。对此,本申请不做限定。
如图26所示,耳机包括:处理器2601、存储器2602、通信模块2603、输入模块2604、麦克风2605、扬声器2606、传感器模块2607等部件。可以理解的,图26中示出的耳机结构并不构成对耳机的限定,可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置。
可以理解的是,若耳机的类型是TWS耳机,那么左耳机和右耳机可以分别具备上述处理器2601、存储器2602、通信模块2603、输入模块2604、麦克风2605、扬声器2606和传感器模块2607中的一个或多个部件。
若耳机的类型是线控耳机或者颈戴式耳机,那么耳机的左耳机和右耳机上可以分别具备传感器模块2607、扬声器2606、麦克风2605和输入模块2604中的一个或多个部件。控制模块上可以具体处理器2601、存储器2602、通信模块2603、输入模块2604、麦克风2605等模块。
其中,处理器2601可以包括如下至少一种类型:中央处理单元(Central Processing Unit,CPU),该处理器2601还可以是其他通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field-Programmable Gate Array,FPGA)、或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
处理器2601中还可以设置存储器,用于存储指令和数据。在一些实施例中,处理器110中的存储器为高速缓冲存储器。该存储器可以保存处理器110刚用过或循环使用的指令或数据。如果处理器2601需要再次使用该指令或数据,可从所述存储器中直接调用。避免了重复存取,减少了处理器2601的等待时间,因而提高了***的效率。
存储器2602可用于存储软件程序以及模块,处理器2601通过运行存储在存储器2602的软件程序以及模块,从而执行耳机的各种功能应用以及数据处理。存储器2602可主要包括存储程序区和存储数据区,其中,存储程序区可存储操作***、至少一个功能所需的应用程序等;存储数据区可存储根据耳机的使用所创建的数据等。此外,存储器2602可以包括高速随机存取存储器,还可以包括非易失性存储器,例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
其中,通信模块2603用于在处理器2601的控制下实现信号的接收和发送,例如接收终端设备发送的通话对方的语音信号、向终端设备发送语音信号等。该通信模块2603可以包括射频(Radio Frequency,RF)电路。通常,RF电路包括但不限于天线、至少一个放大器、收发信机、耦合器、LNA(low noise amplifier,低噪声放大器)、双工器等。此外,近场RF电路还可以通过无线通信与网络和其他设备通信。所述无线通信可以使用任一通信标准或协议,包括但不限于短距离通信技术,例如无线保真(wireless fidelity,WiFi)通信、蓝牙通信、近场射频通信等。
输入模块2604可用于接收输入的按键信息、开关信息,以及产生与耳机的用户设置以及功能控制有关的键信号输入和语音信号输入。具体地,输入模块2604可包括触控键2604a和/或物理按键2604b。触控键2604a,可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控键2604a上或在触控键 2604a附近的操作),并根据预先设定的程式驱动相应的连接装置。在一种实现方式中,触控面板2604a可包括触摸检测装置和触摸控制器两个部分。此外,可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控键2604a。物理按键2604可以包括音量控制按键、开关按键等的一种或多种。
麦克风2605,也称“话筒”,“传声器”,用于将声音信号转换为电信号。当拨打电话或发送语音信息时,用户可以通过人嘴靠近麦克风2605发声,将声音信号输入到麦克风2605。耳机上可以设置多个麦克风2605。
扬声器2606,也称“喇叭”,用于将音频电信号转换为声音信号。
传感器模块2607可以包括压力传感器2607a、温度传感器2607b、距离传感器2607c、光线传感器2607d、加速度传感器2607e、入耳检测传感器2607f、正面光线距离感应器2607g、背面光线距离感应器2607h等。
其中,压力传感器2607a用于感受压力信号,可以将压力信号转换成电信号。在一些实施例中,压力传感器2607a可以设置于显示屏2605。压力传感器2607a的种类很多,如电阻式压力传感器,电感式压力传感器,电容式压力传感器等。电容式压力传感器可以是包括至少两个具有导电材料的平行板。当有力作用于压力传感器2607a,电极之间的电容改变。耳机根据电容的变化确定压力的强度。在一些实施例中,可以通过压力传感器2607a检测开关操作,也可以检测耳机是否处于非佩戴状态。
加速度传感器2607e可检测耳机在各个方向上(一般为三轴)加速度的大小。当耳机静止时可检测出重力的大小及方向。还可以用于识别耳机的状态,应用于佩戴检测。
距离传感器2607c,用于测量距离。耳机可以通过红外或激光测量距离。在一些实施例中,耳机可以利用距离传感器2607c测距以实现佩戴检测。
光线传感器2607d,用于测量光线强度。在一些实施例中,耳机可以利用光线传感器2607d测光强以实现佩戴检测。
温度传感器2607b用于检测温度。在一些实施例中,耳机利用温度传感器2607b检测的温度,以实现佩戴检测。
正面光线距离感应器2607g和背面光线距离感应器2607h,用于检测耳机上前后两个方向的光线距离。在一些实施例中,耳机可以利用正面光线距离感应器2607g和背面光线距离感应器2607h测距以实现佩戴检测。
另外,尽管未示出,耳机还可以包括电源模块等,在此不再赘述。
本申请实施例还提供了一种计算机可读存储介质。上述实施例中描述的方法可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。如果在软件中实现,则功能可以作为一个或多个指令或代码存储在计算机可读介质上或者在计算机可读介质上传输。计算机可读介质可以包括计算机存储介质和通信介质,还可以包括任何可以将计算机程序从一个地方传送到另一个地方的介质。存储介质可以是可由计算机访问的任何可用介质。
作为一种实现的设计,计算机可读介质可以包括只读存储器(read-only memory,ROM)或可存储静态信息和指令的其他类型的静态存储设备,随机存取存储器(random access memory,RAM)或者可存储信息和指令的其他类型的动态存储设备,也可以是电可擦可编程只读存储器(Electrically erasable programmabler-only memory, EEPROM)或其它光盘存储器,磁盘存储器或其它磁存储设备,或可用于承载的任何其它介质或以指令或数据结构的形式存储所需的程序代码,并且可由计算机访问。而且,任何连接被适当地称为计算机可读介质。例如,如果使用同轴电缆,光纤电缆,双绞线,数字用户线(DSL)或无线技术(如红外,无线电和微波)从网站,服务器或其它远程源传输软件,则同轴电缆,光纤电缆,双绞线,DSL或诸如红外,无线电和微波之类的无线技术包括在介质的定义中。如本文所使用的磁盘和光盘包括光盘(CD),激光盘,光盘,数字通用光盘(DVD),软盘和蓝光盘,其中磁盘通常以磁性方式再现数据,而光盘利用激光光学地再现数据。上述的组合也应包括在计算机可读介质的范围内。
本申请实施例还提供了一种计算机程序产品。上述实施例中描述的方法可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。如果在软件中实现,可以全部或者部分得通过计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行上述计算机程序指令时,全部或部分地产生按照上述方法实施例中描述的流程或功能。上述计算机可以是通用计算机、专用计算机、计算机网络、网络设备、用户设备或者其它可编程装置。
所属领域的技术人员可以清楚地了解到,为了描述的方便和简洁,仅以上述各功能单元、模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能单元、模块完成,即将所述装置的内部结构划分成不同的功能单元或模块,以完成以上描述的全部或者部分功能。实施例中的各功能单元、模块可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中,上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。另外,各功能单元、模块的具体名称也只是为了便于相互区分,并不用于限制本申请的保护范围。上述***中单元、模块的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在上述实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述或记载的部分,可以参见其它实施例的相关描述。
以上所述实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围,均应包含在本申请的保护范围之内。

Claims (14)

  1. 一种耳机通话方法,应用于耳机,其特征在于,所述耳机包括左耳机和右耳机,所述方法包括:
    在通话状态下,若检测到第一耳机处于非佩戴状态,则确定所述第一耳机上的麦克风为通话麦克风;
    将所述通话麦克风接收到的第一语音信号发送给终端设备;
    其中,所述第一耳机为所述左耳机和所述右耳机中的其中一个耳机。
  2. 根据权利要求1所述的方法,其特征在于,所述方法还包括:当确定所述第一耳机上的麦克风为通话麦克风,关闭所述第一耳机中的扬声器。
  3. 根据权利要求1或2所述的方法,其特征在于,若检测到所述第一耳机处于非佩戴状态,则确定所述第一耳机上的麦克风为通话麦克风,包括:
    若检测到所述第一耳机处于非佩戴状态,且所述第一耳机上的麦克风所接收到的语音信号的信噪比大于所述耳机中当前的通话麦克风所接收到的语音信号的信噪比,则确定所述第一耳机上的麦克风为通话麦克风。
  4. 根据权利要求1-3任一项所述的方法,其特征在于,所述第一耳机上设置有佩戴传感器,所述方法还包括:
    根据所述佩戴传感器的检测信息,确定所述第一耳机是否处于非佩戴状态。
  5. 根据权利要求1-3任一项所述的方法,其特征在于,所述第一耳机上设置有开关,当检测到所述开关开启时,确定所述第一耳机处于非佩戴状态。
  6. 根据权利要求1-3任一项所述的方法,其特征在于,所述第一耳机上的麦克风包括前置麦克风和后置麦克风,当检测到所述前置麦克风所接收到的语音信号的信噪比,和所述后置麦克风所接收到的语音信号的信噪比之差的绝对值小于预设差值时,确定所述第一耳机处于非佩戴状态。
  7. 根据权利要求1-3任一项所述的方法,其特征在于,所述第一耳机上的麦克风包括第一麦克风和第二麦克风,当检测到所述第一麦克风被堵住时,确定所述第一耳机处于非佩戴状态;
    所述确定所述第一耳机上的麦克风为通话麦克风,包括:
    确定所述第二麦克风为所述通话麦克风。
  8. 根据权利要求1-7任一项所述的方法,其特征在于,若所述第一耳机上设置有多个麦克风,所述确定所述第一耳机上的麦克风为通话麦克风,包括:
    确定所述多个麦克风中信噪比最大的麦克风为所述通话麦克风。
  9. 根据权利要求1-7任一项所述的方法,其特征在于,若所述第一耳机上设置有多个麦克风,所述确定所述第一耳机上的麦克风为通话麦克风,包括:
    确定所述多个麦克风中至少两个麦克风为所述通话麦克风;
    所述将所述通话麦克风接收到的第一语音信号发送给终端设备,包括
    将至少两个所述通话麦克风分别接收到的语音信号进行合成,得到所述第一语音信号;
    将所述第一语音信号发送给所述终端设备。
  10. 根据权利要求1-9任一项所述的方法,其特征在于,所述将所述通话麦克风接 收到的第一语音信号发送给终端设备之前,所述方法还包括:
    利用所述耳机上除所述通话麦克风以外的至少一个麦克风所接收到的语音信号,对所述通话麦克风所接收到的第一语音信号进行降噪处理;
    所述将所述通话麦克风接收到的第一语音信号发送给终端设备,包括:
    将降噪后的所述第一语音信号发送给终端设备。
  11. 一种耳机,其特征在于,所述耳机包括左耳机和右耳机,所述左耳机和所述右耳机包括处理器、存储器以及存储在所述存储器中并可在所述处理器上运行的计算机程序,所述处理器在执行所述计算机程序,以使所述耳机执行如权利要求1-10任一项所述的耳机通话方法。
  12. 根据权利要求11所述的耳机,其特征在于,所述耳机为真无线立体耳机或颈戴式耳机。
  13. 根据权利要求11或12所述的耳机,其特征在于,所述第一耳机为主耳机。
  14. 根据权利要求11-13任一所述的耳机,其特征在于,所述第一语音信号为所述通话麦克风接收到的用户的语音信号。
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