CN106856580B - A kind of method of bluetooth headset and its monitoring condition sound - Google Patents
A kind of method of bluetooth headset and its monitoring condition sound Download PDFInfo
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- CN106856580B CN106856580B CN201611192853.5A CN201611192853A CN106856580B CN 106856580 B CN106856580 B CN 106856580B CN 201611192853 A CN201611192853 A CN 201611192853A CN 106856580 B CN106856580 B CN 106856580B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1041—Mechanical or electronic switches, or control elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Telephone Function (AREA)
Abstract
The invention discloses a kind of methods of bluetooth headset and its monitoring condition sound.Sidetone module is configured in the Bluetooth chip of bluetooth headset of the invention, solidification has SBC audio coding decoding algorithm in the Bluetooth chip where sidetone module；The method comprise the steps that enabling the microphone of bluetooth headset when needing to monitor surrounding environment sound, surrounding environment sound is picked up using microphone；First analog signal of surrounding environment sound is converted into the first digital signal；SBC audio coding decoding algorithm is called by sidetone module, the first digital signal progress digital audio processing is converted into the second digital signal；Second digital signal is converted into the second analog signal, and the loudspeaker for being output to bluetooth headset plays out, realizes the monitoring to surrounding environment sound.As it can be seen that shortening the R&D cycle this invention simplifies product design, and reduce design cost, improving functional stabilization.
Description
Technical field
The present invention relates to ear phone technology field, in particular to the method for a kind of bluetooth headset and its monitoring condition sound.
Background technique
Good audible environment when in order to build earphone broadcasting audio, bluetooth headset, especially wear-type bluetooth headset
The sealing performance of headgear has very well, but this be easy to cause user that can not obtain the sound of ambient enviroment, for example, it is desired to at one's side
When people talks, the voice of around people can not be heard, at this moment, it is necessary to which taking earphone just can be with this just brings not to user
Just.So having the function of that the earphone of monitoring condition sound becomes a kind of demand.When using earphone with monitor function, in nothing
In the case where earphone need to being taken, the ambient sound that surrounding is heard at family not only can be used, increase safety；Can also at one's side
People is clearly talked.
In the prior art, bluetooth headset is to realize monitor function, and DSP (Digital Signal is usually used
Processing, Digital Signal Processing) chip or purchase third party's algorithm realize, still, both modes will increase product
Design cost, increase the R&D cycle, be unfavorable for the exploitation of product.
Summary of the invention
It will increase the design cost of product in view of using dsp chip in the prior art or buying the realization of third party's algorithm,
Increase the R&D cycle, the problem of being unfavorable for the exploitation of product proposes of the invention a kind of bluetooth headset and its monitoring condition sound
Method, to solve or at least be partially solved the above problem.
According to an aspect of the invention, there is provided a kind of method of bluetooth headset monitoring condition sound, the bluetooth headset
Bluetooth chip in be configured with sidetone module, in the Bluetooth chip where the sidetone module solidification have SBC audio coding decoding
Algorithm；The described method includes:
When needing to monitor surrounding environment sound, the microphone of the bluetooth headset is enabled, picks up week using the microphone
Enclose ambient sound；
First analog signal of the surrounding environment sound is converted into the first digital signal；
The SBC audio coding decoding algorithm is called by the sidetone module, first digital signal is subjected to number
Audio processing is converted to the second digital signal；
Second digital signal is converted into the second analog signal, and the loudspeaker for being output to the bluetooth headset carries out
It plays, realizes the monitoring to surrounding environment sound.
According to another aspect of the present invention, a kind of bluetooth headset, including microphone and loudspeaker, the bluetooth are provided
Sidetone module is configured in the Bluetooth chip of earphone, solidification has SBC audio volume in the Bluetooth chip where the sidetone module
Decoding algorithm；The bluetooth headset further include: enabled module, analog-to-digital conversion module, D/A converter module；
The microphone, for picking up surrounding environment sound；
The enabled module is utilized for when needing to monitor surrounding environment sound, enabling the microphone of the bluetooth headset
The microphone picks up surrounding environment sound and is sent to the analog-to-digital conversion module；
The analog-to-digital conversion module is believed for the first analog signal of the surrounding environment sound to be converted into the first number
Number, it is sent to the sidetone module；
First digital signal is carried out number for calling the SBC audio coding decoding algorithm by the sidetone module
Audio processing is converted to the second digital signal and is sent to the D/A converter module；
The D/A converter module is output to described for second digital signal to be converted to the second analog signal
The loudspeaker of bluetooth headset；
The loudspeaker is realized for playing second analog signal of the D/A converter module output to surrounding
The monitoring of ambient sound.
In conclusion the present invention when user needs monitoring condition sound, opens microphone, surrounding ring is picked up using microphone
Border sound after the first analog signal of surrounding environment sound is converted into the first digital signal, utilizes sidetone existing in bluetooth headset
Module calls SBC audio coding decoding algorithm, and first digit signal is converted into the second number that can be identified by earphone speaker
Signal, then the second digital signal is converted into the second analog signal, and be output to earphone speaker and play out, it realizes to surrounding
The monitoring of ambient sound.The sidetone module that the present invention is used using bluetooth headset in call, calls free SBC audio coding decoding
Algorithm has achieved the effect that monitor surrounding environment sound, do not utilize complicated circuit, monitor function is equally stable.As it can be seen that present invention letter
Product design is changed, has shortened the R&D cycle, and reduce design cost, improve functional stabilization.
Detailed description of the invention
Fig. 1 is a kind of method flow diagram of bluetooth headset monitoring condition sound provided by one embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of bluetooth headset provided by one embodiment of the present invention；
Fig. 3 is a kind of schematic diagram for bluetooth headset that another embodiment of the present invention provides.
Specific embodiment
Mentality of designing of the invention is: realizing meeting in view of using dsp chip in the prior art or buying third party's algorithm
The problem of increasing the design cost of product, increasing the R&D cycle, be unfavorable for the exploitation of product, it is also contemplated that bluetooth headset bluetooth mould
Sidetone module in block may be implemented user's own voice slave microphone to the characteristic of the transmission loudspeaker.Benefit of the invention
With the free SBC audio coding decoding algorithm being cured in sidetone module, microphone is picked up into surrounding environment sound and utilizes bluetooth ear
After existing sidetone module calls SBC audio coding decoding algorithm to be converted into the signal that can be identified by earphone speaker in machine, output
It is played out to earphone speaker, realizes the monitoring to surrounding environment sound.To make the object, technical solutions and advantages of the present invention more
Add clear, below in conjunction with attached drawing, embodiment of the present invention is described further in detail.
In the Bluetooth chip of bluetooth headset be configured with sidetone module, the sidetone module generally call when, provide by with
The sound at family is transferred to the access of loudspeaker from microphone, so that user's oneself audible sound in call.It is blue to realize
Tooth earphone under other usage scenarios to the monitoring of surrounding environment sound, such as when listening audio, by surrounding environment sound from microphone
It is transferred in loudspeaker, without taking earphone, the present invention utilizes existing sidetone module in the bluetooth headset, and in sidetone
Solidify SBC audio coding decoding algorithm in Bluetooth chip where module, realizes the monitoring to surrounding environment sound.
Fig. 1 is a kind of method flow diagram of bluetooth headset monitoring condition sound provided by one embodiment of the present invention.Such as Fig. 1 institute
Show, this method comprises:
Step S110 enables the microphone of bluetooth headset when needing to monitor surrounding environment sound, picks up week using microphone
Enclose ambient sound.
When user using earphone when needing to monitor surrounding environment sound, user is pressed without taking earphone by enabled
Key opens the microphone of bluetooth headset, picks up surrounding environment sound using microphone.For example, when user's needs and around people
When being talked, without taking earphone, after pressing enabled key, microphone is opened, so that it may pick up around people by microphone
One's voice in speech.
First analog signal of surrounding environment sound is converted into the first digital signal by step S120.
The surrounding environment sound that microphone picks up is an analog signal, in order to be further processed to surrounding environment sound, is needed
The analog signal of surrounding environment sound is converted into digital signal.Here by analog-to-digital conversion (ADC, analog to
Digital convertor) module converted.
Step S130, calls SBC audio coding decoding algorithm by sidetone module, and the first digital signal is carried out digital audio
Processing, is converted to the second digital signal.
The effect of sidetone module in the Bluetooth chip of bluetooth headset is to provide the sound of user in call from wheat
Gram wind is transferred to the access of loudspeaker, so that user's oneself audible sound in call.But in the other of bluetooth headset
This module does not work under usage scenario, i.e., surrounding environment sound can not be transferred to loudspeaker from microphone；Or even if this
Module works, but the analog signal of surrounding environment sound also can not be by speaker identification.So in view of the above-mentioned of sidetone module
Characteristic solidifies free SBC audio coding decoding algorithm in the Bluetooth chip where sidetone module, can provide surrounding environment sound
It is transferred to the access of loudspeaker from microphone, surrounding environment sound is converted into speaker identification by SBC audio coding decoding algorithm
Signal after transmission of the surrounding environment sound from microphone to loudspeaker can be realized by the access, user can be from loudspeaking
Surrounding environment sound is heard in device.
Here SBC (sub band code) audio coding decoding algorithm is a kind of tool of transducing audio format, surrounding ring
Border sound can be converted by the algorithm by the second digital signal of speaker identification.
Second digital signal is converted to the second analog signal by step S140, and be output to the loudspeaker of bluetooth headset into
Row plays, and realizes the monitoring to surrounding environment sound.
What it is by the conversion of SBC audio coding decoding algorithm is digital signal, in order to realize the broadcasting of loudspeaker, the digital signal
It also needs that the second digital signal is converted to second by digital-to-analogue conversion (DAC, digital to analog convertor)
Analog signal could play out in loudspeaker.
The sidetone module that the present invention is used using bluetooth headset in call, calls free SBC audio coding decoding algorithm,
It not only can reach the effect for monitoring surrounding environment sound in voice communication, also can achieve monitoring when audio plays or when standby
The effect of surrounding environment sound, does not utilize complicated circuit, and monitor function is equally stable.As it can be seen that this invention simplifies product design, contracting
The short R&D cycle, and design cost is reduced, improve functional stabilization.
In order to the surrounding environment sound for hearing user volume in a suitable range, in an implementation of the invention
In example, first digital signal that is converted into the first analog signal of surrounding environment sound in step S120 includes: to adjust the first number
The signal strength of word signal.
Here the signal strength for adjusting the first digital signal is realized by adjusting gain (gain) value.Adjust gain
(gain) it is adjustment signal voltage, controls the multiple of low level signal amplification, it is seen that it was mainly adjusted is signal strength.
In the present embodiment, a gain1 value can be set in earphone based on experience value, when by the first of surrounding environment sound
When analog signal is converted into the first digital signal, the signal strength of digital signal is adjusted according to the gain1 of setting.
In one embodiment of the invention, SBC audio coding decoding algorithm is called by sidetone module in step S130,
It includes: to call SBC audio by sidetone module that first digital signal progress digital audio processing, which is converted to the second digital signal,
First digital signal is successively encoded, is compressed, decoding process by encoding and decoding algorithm, obtains the second digital signal, and adjust
The signal strength of second digital signal.
It, can be successively by coding, pressure during SBC audio coding decoding algorithm converts the first digital signal
The processes such as contracting, decoding process, meanwhile, in order to the surrounding environment sound for hearing user volume in a suitable range, this
Embodiment can also be realized by adjusting gain (gain) value of the second digital signal.
In the present embodiment, a gain2 value can be set in earphone based on experience value, is converted when by the first digital signal
When at the second digital signal, the signal strength of digital signal is adjusted according to the gain2 of setting.
It is the adjustment that yield value is carried out to digital signal in above-described embodiment, same user can also pass through on earphone
Volume adjustment button adjusts the volume for the surrounding environment sound that loudspeaker plays according to own situation.At of the invention one
In embodiment, second analog signal that is converted to the second digital signal in step S140 includes: to receive the volume of bluetooth headset
The regulating command of key adjusts the signal strength of the second analog signal.Here user can pass through the volume adjustment on bluetooth headset
Key issues the instruction for increasing volume or reducing volume, and it is logical that user is received during the digital-to-analogue conversion of surrounding environment sound
Cross the regulating command of volume button sending, so that it may be adjusted according to analog signal of the regulating command to surrounding environment sound.But
It is that upper limit value and lower limit are needed by the volume that volume adjustment button adjusts the surrounding environment sound that loudspeaker plays here
Value, that is to say, that the volume for the surrounding environment sound that user hears unconfined will not increase or reduce, when the arrival upper limit or lower limit
When, the size of volume will not increase or reduce again.
It should be noted that the embodiment of above-mentioned adjusting volume can individually be implemented, implementation also can be combined with each other, tie
The sense of hearing demand for implementing that user can be more in line with is closed, user experience is enhanced.
In one embodiment of the invention, in step S110 when needing to monitor surrounding environment sound, enable bluetooth ear
The microphone of machine includes: that switch module is arranged on bluetooth headset, when switch module is opened, enables the Mike of bluetooth headset
Wind opens the monitoring condition sound function of bluetooth headset.
Switch module is set on bluetooth headset, when user needs monitoring condition sound, is turned on the switch, so that it may realize
The monitoring of surrounding environment sound.It should be noted that during user's monitoring condition sound, loudspeaker playing environment sound, and
The audio that user plays before turning on the switch is at the state that pause plays, and when user turns off the switch, audio starts to broadcast again
It puts.
Fig. 2 is a kind of schematic diagram of bluetooth headset provided by one embodiment of the present invention.As shown in Fig. 2, the bluetooth headset
200 include: microphone 220 and loudspeaker 260, sidetone module 240 is configured in the Bluetooth chip of bluetooth headset, in sidetone module
Solidification has SBC audio coding decoding algorithm in the Bluetooth chip at place；It is characterized in that, bluetooth headset further include: enabled module
210, analog-to-digital conversion module 230, D/A converter module 250.
Microphone 220, for picking up surrounding environment sound.
Enabled module 210, for enabling the microphone of bluetooth headset, utilizing Mike when needing to monitor surrounding environment sound
Wind picks up surrounding environment sound and is sent to analog-to-digital conversion module.
Analog-to-digital conversion module 230 is sent for the first analog signal of surrounding environment sound to be converted into the first digital signal
Give sidetone module.
First digital signal is carried out digital audio processing for calling SBC audio coding decoding algorithm by sidetone module 240
It is converted to the second digital signal and is sent to D/A converter module.
D/A converter module 250 is output to bluetooth headset for the second digital signal to be converted to the second analog signal
Loudspeaker.
Loudspeaker 260 realizes the prison to surrounding environment sound for playing the second analog signal of D/A converter module output
It listens.
In one embodiment of the invention, analog-to-digital conversion module 230, the signal for being also used to adjust the first digital signal are strong
Degree.
In one embodiment of the invention, sidetone module 240 is specifically used for calling SBC audio coding decoding algorithm by the
One digital signal successively encoded, compressed, decoding process, obtains the second digital signal, and is also used to adjust the second number
The signal strength of signal.
Fig. 3 is a kind of schematic diagram for bluetooth headset that another embodiment of the present invention provides.As shown in figure 3, the bluetooth ear
Machine 300 includes: enabled module 310, microphone 320, analog-to-digital conversion module 330, sidetone module 340,350 and of D/A converter module
Loudspeaker 360；Volume button 370 is additionally provided on bluetooth headset 300.Wherein, module 310, microphone 320, modulus is enabled to turn
Change the mold block 330, sidetone module 340, D/A converter module 350 and loudspeaker 360 and enabled module 210 shown in Fig. 2, microphone
220, analog-to-digital conversion module 230, sidetone module 240, D/A converter module 250 and loudspeaker 260 have corresponding identical function,
Details are not described herein for identical part.
Volume button 370, for sending the regulating command for adjusting the second analog signal.
D/A converter module 350 is also used to the regulating command of volume of reception key 370, adjusts the letter of the second analog signal
Number intensity.
In one embodiment of the invention, it is provided with switch module on bluetooth headset, enabling module 310 is specially to switch
Module when switch module is opened, enables the microphone of bluetooth headset, opens the monitoring condition sound function of bluetooth headset.
In conclusion the present invention when user needs to monitor surrounding environment sound, opens microphone, week is picked up using microphone
Ambient sound is enclosed, after the first analog signal of surrounding environment sound is converted into the first digital signal, using existing in bluetooth headset
Sidetone module calls SBC audio coding decoding algorithm, and first digit signal is converted into can be identified by earphone speaker second
Digital signal, then the second digital signal is converted into the second analog signal, and be output to earphone speaker and play out, realization pair
The monitoring of surrounding environment sound.The sidetone module that the present invention is used using bluetooth headset in call, calls free SBC audio to compile
Decoding algorithm not only can reach the effect for monitoring surrounding environment sound in voice communication, can also when audio plays or standby
To achieve the effect that monitor surrounding environment sound, do not utilize complicated circuit, monitor function is equally stable.As it can be seen that this invention simplifies
Product design shortens the R&D cycle, and reduces design cost, improves functional stabilization.
The above description is merely a specific embodiment, under above-mentioned introduction of the invention, those skilled in the art
Other improvement or deformation can be carried out on the basis of the above embodiments.It will be understood by those skilled in the art that above-mentioned tool
Body description only preferably explains that the purpose of the present invention, protection scope of the present invention should be subject to the protection scope in claims.
Claims (6)
1. a kind of method of bluetooth headset monitoring condition sound, sidetone module, In are configured in the Bluetooth chip of the bluetooth headset
Solidification has SBC audio coding decoding algorithm in Bluetooth chip where the sidetone module；It is characterized in that, which comprises
When needing to monitor surrounding environment sound, the microphone of the bluetooth headset is enabled, picks up surrounding ring using the microphone
Border sound；
First analog signal of the surrounding environment sound is converted into the first digital signal；It include: to adjust the first number letter
Number signal strength；
The SBC audio coding decoding algorithm is called by the sidetone module, first digital signal is subjected to digital audio
Processing, is converted to the second digital signal；It include: that the SBC audio coding decoding algorithm is called by the sidetone module, it will be described
First digital signal successively encoded, compressed, decoding process, obtains the second digital signal, and adjusts second number
The signal strength of signal；
Second digital signal is converted into the second analog signal by D/A converter module, and is output to the bluetooth headset
Loudspeaker play out, realize monitoring to surrounding environment sound.
2. the method as described in claim 1, which is characterized in that described that second digital signal is converted to the second simulation letter
Number include:
The regulating command of the volume button of the bluetooth headset is received, the signal strength of second analog signal is adjusted.
3. the method as described in claim 1, which is characterized in that it is described when needing to monitor surrounding environment sound, enable the indigo plant
The microphone of tooth earphone includes:
Switch module is set on the bluetooth headset, when the switch module is opened, enables the Mike of the bluetooth headset
Wind opens the monitoring condition sound function of the bluetooth headset.
4. a kind of bluetooth headset, including microphone and loudspeaker, sidetone module is configured in the Bluetooth chip of the bluetooth headset,
Solidification has SBC audio coding decoding algorithm in the Bluetooth chip where the sidetone module；It is characterized in that, the bluetooth headset
Further include: enabled module, analog-to-digital conversion module, D/A converter module；
The microphone, for picking up surrounding environment sound；
The enabled module, for when needing to monitor surrounding environment sound, enabling the microphone of the bluetooth headset, using described
Microphone picks up surrounding environment sound and is sent to the analog-to-digital conversion module；
The analog-to-digital conversion module is wrapped for the first analog signal of the surrounding environment sound to be converted into the first digital signal
It includes: adjusting the signal strength of first digital signal；It is sent to the sidetone module；
First digital signal is carried out digital audio for calling the SBC audio coding decoding algorithm by the sidetone module
Processing is converted to the second digital signal and is sent to the D/A converter module；It include: to call the SBC audio coding decoding algorithm will
First digital signal is successively encoded, is compressed, decoding process obtains the second digital signal, and is also used to adjust described
The signal strength of second digital signal；
The D/A converter module is output to the bluetooth for second digital signal to be converted to the second analog signal
The loudspeaker of earphone；
The loudspeaker is realized for playing second analog signal of the D/A converter module output to ambient enviroment
The monitoring of sound.
5. bluetooth headset as claimed in claim 4, which is characterized in that it is provided with volume button on the bluetooth headset,
The D/A converter module is also used to receive the regulating command of the volume button, adjusts second analog signal
Signal strength.
6. bluetooth headset as claimed in claim 4, which is characterized in that switch module is provided on the bluetooth headset, it is described
Enabled module is the switch module, when the switch module is opened, enables the microphone of the bluetooth headset, described in unlatching
The monitoring condition sound function of bluetooth headset.
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| CN107708017A (en) * | 2017-11-29 | 2018-02-16 | 杭州电子科技大学 | The earphone with regard to soundproof effect can be adjusted need not be extracted during a kind of wearing |
| CN108156550B (en) * | 2017-12-27 | 2020-03-31 | 上海传英信息技术有限公司 | Playing method and device of headset |
| CN108600893A (en) * | 2018-07-10 | 2018-09-28 | 武汉轻工大学 | Military environments audio classification system, method and military noise cancelling headphone |
| US11100909B2 (en) * | 2019-05-06 | 2021-08-24 | Apple Inc. | Devices, methods, and graphical user interfaces for adaptively providing audio outputs |
| CN110572734A (en) * | 2019-09-04 | 2019-12-13 | 广东以诺通讯有限公司 | Method for intelligently monitoring environmental sounds through earphone and earphone |
| CN111616733A (en) * | 2020-05-28 | 2020-09-04 | 广州爱听贝科技有限公司 | Wearable wireless auscultation device |
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