CN208522979U - A kind of audio frequency apparatus - Google Patents
A kind of audio frequency apparatus Download PDFInfo
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- CN208522979U CN208522979U CN201820565255.6U CN201820565255U CN208522979U CN 208522979 U CN208522979 U CN 208522979U CN 201820565255 U CN201820565255 U CN 201820565255U CN 208522979 U CN208522979 U CN 208522979U
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- audio frequency
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Abstract
This application discloses a kind of audio frequency apparatus, which includes the USB interface for connecting with external equipment, mobile terminal can be connected on audio frequency apparatus by the USB interface.When mobile terminal is connected on audio frequency apparatus, audio signal can be transmitted between mobile terminal and audio frequency apparatus.Moreover, including microphone and loudspeaker on the audio frequency apparatus, therefore, microphone and loudspeaker on the audio frequency apparatus can be used as the extension of the microphone and loudspeaker of mobile terminal.Therefore, by audio frequency apparatus provided by the present application, in order to guarantee preferably to answer effect and recording effect, carry out hand-held mobile terminal without limiting user close to mobile terminal, or with a certain specific hand-held posture.So the audio frequency apparatus can cooperate the extension of mobile terminal realization mobile terminal call and/or multimedia function, so as to allow user preferably to experience the call and/or multimedia function of mobile terminal.
Description
Technical field
This application involves technical field of electronic equipment more particularly to a kind of audio frequency apparatuses.
Background technique
With the rapid development of electronic equipment, there is the mobile terminal of call and/or multimedia function, such as mobile phone,
Very important role is play in people's lives and work.Mobile terminal is provided as a kind of portable device for user
Great convenience.
Be limited to the structure space of mobile terminal itself and the limitation of cost, the volume of the earpiece of mobile terminal and microphone compared with
It is small, effect is preferably answered in order to reach, user needs to answer mobile terminal in certain distance, otherwise, may result in use
Family can hear the sound of mobile terminal playing.In addition, in order to reach preferable recording effect, user needs with a certain specific hand
It holds posture and carrys out hand-held mobile terminal.
However, in practical applications, for some reason, user possibly can not most preferably answer the position of effect in mobile terminal
It sets or hand-held mobile terminal can not be carried out with certain posture, for example, realizing videoconference using mobile terminal as means of communication
When, because the position at seat limits, the position of user's potential range mobile terminal is farther out.So merely with mobile terminal itself
Component can not allow user preferably to experience the call or multimedia function of mobile terminal sometimes.
Utility model content
In view of this, the audio frequency apparatus can cooperate mobile terminal to realize movement this application provides a kind of audio frequency apparatus
The extension of terminal call and/or multimedia function, so as to allow user preferably to experience the call of mobile terminal and/or more
Media function.
In order to solve the above-mentioned technical problem, the application adopts the technical scheme that
A kind of audio frequency apparatus, comprising:
Microphone, gain amplifier, Sound Processor Unit, primary processor, USB controller, USB interface, audio-frequency amplifier with
And loudspeaker；
Wherein, the microphone is used for collected sound signal, and the audio that the voice signal is converted to preset format is believed
Number, and by the audio signal transmission to the gain amplifier；
The gain amplifier is transmitted to the Sound Processor Unit for amplifying gain to the audio signal；
The Sound Processor Unit is for handling the audio signal received, to improve the signal-to-noise ratio of audio signal,
And will treated audio signal transmission to the primary processor；
The primary processor be used for the microphone, gain amplifier, Sound Processor Unit, USB controller, USB interface,
Audio-frequency amplifier and loudspeaker carry out logic control, and audio signal transmission that treated by described in USB controller receives and
From the audio signal of USB controller, and by the audio signal transmission from USB controller to audio-frequency amplifier；
The audio-frequency amplifier is transmitted to the loudspeaker for amplifying to the audio signal received；
The USB controller is for realizing the conversion between audio signal and usb signal；
The USB interface for realizing USB controller and external equipment connection.
Optionally, the Sound Processor Unit is specifically used for carrying out automatic growth control, frequency response adjustment, multifrequency to audio signal
Echo is eliminated and/or eliminated to the control of section dynamic loudness, noise, to improve the signal ratio of audio signal, and will treated audio
Signal is transmitted to the primary processor.
Optionally, the noise eliminate include: this bulk noise of microphone, ambient noise and/or wind noise processing.
Optionally, the audio frequency apparatus further include:
The battery of the energy is provided when for working for each component of audio frequency apparatus.
Optionally, the audio frequency apparatus further include: the charging circuit for charging for the battery.
Optionally, the USB interface is Type C interface, one of micro USB interface and lightning interface.
Optionally, the microphone is the microphone array being made of multiple microphones.
Optionally, the loudspeaker is multiple.
Optionally, the audio frequency apparatus is used to extend the multimedia function and/or call function of mobile terminal.
Compared to the prior art, the application has the advantages that
Based on above technical scheme it is found that audio frequency apparatus provided by the present application includes the USB for connecting with external equipment
Mobile terminal can be connected on audio frequency apparatus by interface by the USB interface.When mobile terminal is connected on audio frequency apparatus
When, audio signal can be transmitted between mobile terminal and audio frequency apparatus.Moreover, including microphone and loudspeaking on the audio frequency apparatus
Device, therefore, microphone and loudspeaker on the audio frequency apparatus can be used as the extension of the microphone and loudspeaker of mobile terminal.Such as
This, after mobile terminal is connected on audio frequency apparatus, microphone and loudspeaker on audio frequency apparatus are respectively equivalent to mobile terminal
On microphone and loudspeaker, and on the audio frequency apparatus include Sound Processor Unit, the audio from microphone can be believed
It number is handled, and then improves its signal-to-noise ratio.Therefore, by audio frequency apparatus provided by the present application, in order to guarantee preferably to answer
Effect and recording effect are held without limiting user close to mobile terminal, or with a certain specific hand-held posture
Mobile terminal.So the audio frequency apparatus can cooperate the expansion of mobile terminal realization mobile terminal call and/or multimedia function
Exhibition, so as to allow user preferably to experience the call and/or multimedia function of mobile terminal.
Detailed description of the invention
In order to which the specific embodiment of the application is expressly understood, used when the application specific embodiment is described below
Attached drawing do a brief description.It should be evident that these attached drawings are only the section Examples of the application.
Fig. 1 is audio frequency apparatus structural schematic diagram provided by the embodiments of the present application；
Fig. 2 is audio equipment applications system schematic provided by the embodiments of the present application.
Specific embodiment
Based on background technique it is found that currently, merely with mobile terminal itself component, can not allow user's preferably body sometimes
Test the call or multimedia function of mobile terminal.
In order to solve the above-mentioned technical problem, the embodiment of the present application, which provides one kind, can cooperate mobile terminal to realize movement
Terminal call and/or the audio frequency apparatus of multimedia function extension, the audio frequency apparatus can be connect with mobile terminal.Work as mobile terminal
When being connected on audio frequency apparatus, audio signal can be transmitted between mobile terminal and audio frequency apparatus.Moreover, being wrapped on the audio frequency apparatus
Include microphone and loudspeaker, therefore, microphone and loudspeaker on the audio frequency apparatus can be used as mobile terminal microphone and
The extension of loudspeaker.In this way, microphone and loudspeaker difference after mobile terminal is connected on audio frequency apparatus, on audio frequency apparatus
The microphone and loudspeaker being equivalent on mobile terminal, and include Sound Processor Unit on the audio frequency apparatus, it can be to coming from
The audio signal of microphone is handled, and then improves its signal-to-noise ratio.Therefore, by audio frequency apparatus provided by the present application, in order to
Guarantee preferably answers effect and recording effect, without limiting user close to mobile terminal, or with a certain specific
Hand-held posture carrys out hand-held mobile terminal.So the audio frequency apparatus can cooperate mobile terminal to realize mobile terminal call and/or more
The extension of media function, so as to allow user preferably to experience the call and/or multimedia function of mobile terminal.
The technical issues of to solve the application, technical solution and technical effect are clearer, complete, with reference to the accompanying drawing
The specific embodiment of the application is described in detail.
Referring to Figure 1, audio frequency apparatus 10 provided by the embodiments of the present application includes with flowering structure:
Microphone 11, gain amplifier 12, Sound Processor Unit 13, primary processor 14, USB controller 15, usb 16,
Audio-frequency amplifier 17 and loudspeaker 18；
Wherein, microphone 11 is used to acquire voice signal, converts voice signals into the audio signal of preset format, and will
Audio signal transmission is to gain amplifier 12；
Gain amplifier 12 is transmitted to Sound Processor Unit 13 for amplifying gain to audio signal；
Sound Processor Unit 13 is for handling the audio signal received, to improve the signal-to-noise ratio of audio signal, and
Will treated audio signal transmission to primary processor 14；
Primary processor 14 is for meeting microphone 11, gain amplifier 12, Sound Processor Unit 13, USB controller 15, USB
16 mouthfuls, audio-frequency amplifier 17 and loudspeaker 18 carry out logic control, will treated that audio signal passes by Sound Processor Unit 13
USB controller 15 is transported to, receives the audio signal from USB controller 15, and will pass from the audio signal of USB controller 15
Transport to audio-frequency amplifier 17；
Audio-frequency amplifier 17 is transmitted to loudspeaker 18 for amplifying to the audio signal received；
USB controller 15 is for realizing the conversion between audio signal and usb signal；
Usb 16 for realizing USB controller 15 and external equipment connection.
In addition, the portability in order to realize audio frequency apparatus 10, can also include in above-mentioned audio frequency apparatus 10 be audio frequency apparatus
The battery 19 of each component power supply in 10.As further example, which can be rechargeable battery, in this way, in the audio
It can also include the charging circuit being connect with battery 19 in equipment 10.
It is to be appreciated that another implementation of the audio frequency apparatus 10 as above-mentioned example, can not also include battery 19,
It directly can be all parts power supply in audio frequency apparatus by power supply.
In above-mentioned audio frequency apparatus 10, in order to realize the voice signal for preferably acquiring different location, microphone 11 can be with
Including multiple microphones, more specifically, microphone 11 can be the microphone array being made of multiple microphones.In addition, this is more
A microphone can be removeably positioned on audio frequency apparatus 10, can be according to actually answering in this way, in practical applications
It needs to be placed on different location in.
As an example, the audio signal of the preset format exported by microphone 11 can be pulse density modulated (Pulse
Density Modulation, PDM) signal.
PDM audio signal can be converted into pulse code modulation (pulse code by gain amplifier 12
Modulation, PCM) signal.As a specific example, gain amplifier 12 can be programmable gain amplifier
(programmable grain amplifer, PGA).
As a specific example, Sound Processor Unit 13 can carry out automatic growth control (automatic to audio signal
Gain control, AGC), frequency response adjustment (Equalizer, EQ), multiband dynamic loudness control (multi-dynamic
Range control, multi-DRC), noise eliminate (noise Reduction, NR) and/or eliminate echo (echo
Control, EC (EC-REF)), to improve the signal ratio of audio signal.
As a more specific example, noise elimination can be specifically included: weaken this bulk noise, the ambient noise of microphone
And/or wind noise.
Eliminating echo can be specially the echo reference signal pair that Sound Processor Unit 13 is transferred to using audio-frequency amplifier 12
Echo is eliminated.
Primary processor 14 can be micro-control unit (Micro-controller Unit, MCU).
As more specific example, Sound Processor Unit 13 and primary processor 14 be can integrate on the same chip.
USB controller 15 is it can be appreciated that carrying out the packing of USB to audio signal and unpacking.Wherein, USB packing refers to
Convert audio signals into usb signal, USB, which unpacks, to be referred to usb signal being converted into audio signal.
The connection of audio frequency apparatus 10 Yu external device may be implemented in usb 16.As an example, usb 16 can be
Type C interface, or micro USB interface can also be lighting interface (lightning interface).
Loudspeaker 18 may include multiple loudspeakers, to facilitate user to answer the sound of the broadcasting of audio frequency apparatus 10.
The above are the specific implementations of audio frequency apparatus 10 provided by the embodiments of the present application.By on audio frequency apparatus 10
The connection of audio frequency apparatus 10 Yu mobile device may be implemented in usb 16.When mobile terminal is connected on audio frequency apparatus 10, move
Audio signal can be transmitted between dynamic terminal and audio frequency apparatus 10.Moreover, on the audio frequency apparatus 10 include microphone and loudspeaker,
Therefore, the microphone on the audio frequency apparatus 10 and loudspeaker can be used as the extension of the microphone and loudspeaker of mobile terminal.Such as
This, after mobile terminal is connected on audio frequency apparatus 10, microphone and loudspeaker on audio frequency apparatus 10 are respectively equivalent to move
Microphone and loudspeaker in terminal, and include Sound Processor Unit on the audio frequency apparatus 10, it can be to from microphone
Audio signal is handled, and then improves its signal-to-noise ratio.Therefore, by audio frequency apparatus 10 provided by the present application, in order to guarantee compared with
Good answers effect and recording effect, without limiting user close to mobile terminal, or with a certain specific hand-held appearance
State carrys out hand-held mobile terminal.So the audio frequency apparatus 10 can cooperate mobile terminal to realize mobile terminal call and/or multimedia
The extension of function, so as to allow user preferably to experience the call and/or multimedia function of mobile terminal.
The concrete application example for illustrating audio frequency apparatus 10 using mobile phone as mobile terminal below.
Fig. 2 is referred to, the application system of audio frequency apparatus provided by the embodiments of the present application includes audio frequency apparatus 10 and and audio
The mobile phone 20 that equipment 10 connects.
Audio frequency apparatus 10 shown in Fig. 2 is audio frequency apparatus 10 shown in FIG. 1.For the sake of brevity, it no longer retouches in detail herein
State its specific structure.
Some structures relevant to the application on mobile phone 20 are described below.It include USB on mobile phone 20 referring specifically to Fig. 2
Interface 21, USB controller 22, active front end (active front end, AFE) 23, audio digital signals processing system
(audio digital signal processing, ADSP) 24, modem peripheral subsystem software (Modem
Peripheral subsystem software, MPSS) 25 and application processor subsystem software (Applications
Processor subsystem software, APSS) 26；
Wherein, USB interface 21 is with the usb 16 on audio frequency apparatus 10 for connect, thus realize audio frequency apparatus 10 and
The connection of mobile phone 20.As an example, USB interface 21 can be Type C interface, or micro USB interface, it can be with
For lighting interface (lightning interface).
USB controller 22 is for realizing the conversion between audio signal and usb signal；It can be appreciated that audio signal
It carries out the packing of USB and unpacks.
Active front end 23 is that the regulation of audio front end sending and receiving data routes.
Audio digital signals processing system 24 is for handling audio numerical signal, to obtain the higher sound of signal-to-noise ratio
Frequency value signal.Specific to more matchmakers on call voice signal and mobile phone on mobile phone, when which includes call
The audio signal of body device plays and collection.
Voice of the modem peripheral subsystem software 25 for mobile network on mobile phone to include 2G/3G/4G network is logical
Words.It may include debugger (modem stack) 251 and voice service (voice service) 252.
Application processor subsystem software 26 is for realizing VoIP call, recording and multi-media player function, more matchmakers
Body playing function may include recorder 261 and player 262.
In above-mentioned application system, audio frequency apparatus 10 is connected by usb 16 and 21 with mobile phone 20, and opponent may be implemented
The call of machine and multimedia function are extended.
Wherein, the extension to the call function of mobile phone is realized by audio frequency apparatus 10, corresponding working principle is as follows:
When voice call is in progress, voice signal is collected by the microphone 11 of audio frequency apparatus 10, which is converted
At PCM signal, and it is transmitted to gain amplifier 12, gain amplifier 12 is transmitted to acoustic processing to PCM signal gain amplifier
Device 13, Sound Processor Unit 13 handle PCM signal, obtain the higher PCM signal of signal-to-noise ratio, and the signal-to-noise ratio is higher
PCM signal is transmitted to primary processor 14, and the higher PCM signal of the signal-to-noise ratio is transmitted to USB controller 15 by primary processor 14,
The higher PCM signal of the signal-to-noise ratio is converted into usb signal by USB controller 15, is transmitted to mobile phone 20 via usb 16 and 21
On；
USB controller 22 on mobile phone 20 unpacks usb signal, voice signal is converted into, at audio digital signals
Voice signal is transmitted to modem peripheral subsystem software 25 by reason system 24, is transmitted to distant place communicating end via antenna；
Meanwhile modem peripheral subsystem software 25 receives the voice signal that distant place communicating end transmits, via audio
Digital information processing system 24 is USB controller 22 transmitting voice signal, and USB controller 22 is packaged voice signal,
It is converted into usb signal, is transmitted on the USB controller 15 on audio frequency apparatus 10 via USB interface 21 and 16, USB controller 15
It unpacks to voice signal, is converted into voice signal, and be transmitted on primary processor 14, primary processor 14 is by the voice signal
It is transmitted to audio-frequency amplifier 17 to be transmitted on loudspeaker 18 after audio-frequency amplifier 17 is to the voice signal enhanced processing, via raising
Sound device 18 plays voice signal.
Realize that the extension to the multimedia function of mobile phone, corresponding working principle and realization are conversed by audio frequency apparatus 10
The working principle of Function Extension is similar, and difference is, replaces modulation /demodulation by application processor subsystem software 26 in mobile phone terminal
Device peripheral subsystem software 25 works, and corresponding working principle is as follows:
When carrying out multimedia recording by audio frequency apparatus 10, voice signal is collected by the microphone 11 of audio frequency apparatus 10,
The voice signal is converted into PCM signal, and is transmitted to gain amplifier 12, gain amplifier 12 to PCM signal gain amplifier,
And it is transmitted to Sound Processor Unit 13, and Sound Processor Unit 13 handles PCM signal, the higher PCM signal of signal-to-noise ratio is obtained, and
The higher PCM signal of the signal-to-noise ratio is transmitted to primary processor 14, primary processor 14 transmits the higher PCM signal of the signal-to-noise ratio
To USB controller 15, the higher PCM signal of the signal-to-noise ratio is converted into usb signal by USB controller 15, via 6 He of usb 1
USB interface 21 is transmitted on mobile phone 20；
USB controller 22 on mobile phone 20 unpacks usb signal, voice signal is converted into, at audio digital signals
Voice signal is transmitted to application processor subsystem software 26 by reason system 24, by the recording in application processor subsystem software 26
Machine 261 records voice signal.
Player when playing audio-visual on mobile phone 20 by audio frequency apparatus 10, in application processor subsystem software 26
262 play audio-visual, generate audio signal, and by the audio signal transmission to audio digital signals processing system 24, digital audio
Signal processing system 24 handles the audio signal, obtains the higher audio signal of signal-to-noise ratio, and the audio signal is passed
USB controller 22 is transported to, USB controller 22 is packaged the audio signal, generates usb signal, transmits via USB interface 21 and 16
USB controller 15 on to audio frequency apparatus 10, USB controller 15 unpack to the usb signal, audio signal are generated, by the audio
Signal is transmitted to primary processor 14, and for primary processor 14 by the audio signal transmission to audio-frequency amplifier 17, audio-frequency amplifier 17 is right
It after the audio signal enhanced processing, is transmitted on loudspeaker 18, via 18 playing audio signal of loudspeaker.
In this way, by use above system, conversed, recorded voice and when playing audio-visual, user can be against sound
Microphone 11 in frequency equipment 10 is talked, and can be answered by loudspeaker 18, and the microphone 11 on audio frequency apparatus 10 and is raised
Not by the limitation in mobile terminal structure space and cost, volume can be set larger sound device 18, and quantity can be more
It is a, and can according to need and be arranged in different location, in this way, facilitate user different location with Bu Tong hand-held mobile phone posture
It converses, eliminates restriction of the mobile terminal to user location and hand-held mobile phone posture.
The above are the specific implementations of audio frequency apparatus provided by the embodiments of the present application.
Claims (9)
1. a kind of audio frequency apparatus characterized by comprising
It microphone, gain amplifier, Sound Processor Unit, primary processor, USB controller, USB interface, audio-frequency amplifier and raises
Sound device；
Wherein, the microphone is used for collected sound signal, and the voice signal is converted to the audio signal of preset format, and
By the audio signal transmission to the gain amplifier；
The gain amplifier is transmitted to the Sound Processor Unit for amplifying gain to the audio signal；
The Sound Processor Unit is for handling the audio signal received, to improve the signal-to-noise ratio of audio signal, and will
Audio signal transmission that treated is to the primary processor；
The primary processor is used for the microphone, gain amplifier, Sound Processor Unit, USB controller, USB interface, audio
Amplifier and loudspeaker carry out logic control, and to USB controller, reception comes from audio signal transmission that treated by described in
The audio signal of USB controller, and by the audio signal transmission from USB controller to audio-frequency amplifier；
The audio-frequency amplifier is transmitted to the loudspeaker for amplifying to the audio signal received；
The USB controller is for realizing the conversion between audio signal and usb signal；
The USB interface for realizing USB controller and external equipment connection.
2. audio frequency apparatus according to claim 1, which is characterized in that the Sound Processor Unit is specifically used for audio signal
It carries out automatic growth control, frequency response adjustment, the control of multiband dynamic loudness, noise elimination and/or eliminates echo, to improve audio
The signal ratio of signal, and will treated audio signal transmission to the primary processor.
3. audio frequency apparatus according to claim 2, which is characterized in that the noise elimination includes: that the ontology of microphone is made an uproar
The elimination of sound, ambient noise and/or wind noise.
4. audio frequency apparatus according to claim 1-3, which is characterized in that the audio frequency apparatus further include:
The battery of the energy is provided when for working for each component of audio frequency apparatus.
5. audio frequency apparatus according to claim 4, which is characterized in that the audio frequency apparatus further include: for being the electricity
The charging circuit of pond charging.
6. audio frequency apparatus according to claim 1, which is characterized in that the USB interface is Type C interface, micro
One of USB interface and lightning interface.
7. audio frequency apparatus according to claim 1, which is characterized in that the microphone is the wheat being made of multiple microphones
Gram wind array.
8. audio frequency apparatus according to claim 1, which is characterized in that the loudspeaker is multiple.
9. audio frequency apparatus according to claim 1, which is characterized in that the audio frequency apparatus is for extending the more of mobile terminal
Media function and/or call function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820565255.6U CN208522979U (en) | 2018-04-19 | 2018-04-19 | A kind of audio frequency apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820565255.6U CN208522979U (en) | 2018-04-19 | 2018-04-19 | A kind of audio frequency apparatus |
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| Publication Number | Publication Date |
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| CN208522979U true CN208522979U (en) | 2019-02-19 |
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ID=65341468
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| CN201820565255.6U Active CN208522979U (en) | 2018-04-19 | 2018-04-19 | A kind of audio frequency apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111816201A (en) * | 2020-08-07 | 2020-10-23 | 联想(北京)有限公司 | Electronic equipment and voice signal processing method |
| CN113016192A (en) * | 2020-09-24 | 2021-06-22 | 深圳市大疆创新科技有限公司 | Plug detection device, audio processing equipment, audio processing system and plug detection method |
-
2018
- 2018-04-19 CN CN201820565255.6U patent/CN208522979U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111816201A (en) * | 2020-08-07 | 2020-10-23 | 联想(北京)有限公司 | Electronic equipment and voice signal processing method |
| CN111816201B (en) * | 2020-08-07 | 2024-05-28 | 联想(北京)有限公司 | Electronic equipment and voice signal processing method |
| CN113016192A (en) * | 2020-09-24 | 2021-06-22 | 深圳市大疆创新科技有限公司 | Plug detection device, audio processing equipment, audio processing system and plug detection method |
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