CN104506932A - Audio transmission control system and control method - Google Patents
Audio transmission control system and control method Download PDFInfo
- Publication number
- CN104506932A CN104506932A CN201410729938.7A CN201410729938A CN104506932A CN 104506932 A CN104506932 A CN 104506932A CN 201410729938 A CN201410729938 A CN 201410729938A CN 104506932 A CN104506932 A CN 104506932A
- Authority
- CN
- China
- Prior art keywords
- audio
- signal
- decoding
- input
- encoding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 109
- 230000005540 biological transmission Effects 0.000 title claims abstract description 49
- 230000005236 sound signal Effects 0.000 claims abstract description 94
- 238000010586 diagram Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/439—Processing of audio elementary streams
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses an audio transmission control system and control method. The system comprises a signal judgment unit, an audio and video processing chip, an interface selection unit, an input processing chip and a sound processing chip. The signal judgment unit is used for judgment of coding and decoding of audio and video signals inputted by input sources, the audio and video signals are directly outputted to the interface selection unit if the judgment result is no, and the audio and video signals are outputted to the audio and video processing chip if the judgment result is yes. The audio and video processing chip is used for coding and decoding the inputted audio and video signals and then outputting the audio and video signals to the interface selection unit. The interface selection unit is used for receiving the audio and video signals and selecting different internal interfaces according to media formats to output the audio and video signals to the input processing chip. The input processing chip is used for stripping out audio signals from the received audio and video signals and transmitting the audio signals to the sound processing chip via an I2S. The sound processing chip is used for processing the transmitted audio signals and then outputting the audio signals via a loudspeaker. According to the audio transmission control system, sound sources inputted by different input sources can be outputted so that audio considered processing is realized.
Description
Technical field
The present invention relates to electronic product audio transmission field, be specifically related to a kind of audio transmission control system and control method.
Background technology
Along with the development of electronic product, integration level necessitates is more and more higher, only support outside input audio signal or only support that the audio signal of local decode can not meet the growth requirement of electronic product, with head-mounted display apparatus (Head Mount Display, be called for short HMD) be example, existing head-mounted display apparatus HMD is more single in the form of audio input source, this is because the input source in head-mounted display apparatus sound intermediate frequency is different, processing mode is different be difficult to accomplish audio frequency take into account process, therefore, the defect can not taking into account Multi-audio-frequency input source limits the development of electronic product to a certain extent.
Summary of the invention
The invention provides a kind of audio transmission control system and control method, to solve existing electronic product, because audio input source is different, processing mode is different thus the problem of restriction electronic product development.
For achieving the above object, technical scheme of the present invention is achieved in that
According to an aspect of the present invention, provide a kind of audio transmission control system, this system comprises: signal judging unit, audio frequency and video process chip, interface selected cell, input processing chip and sound processing chip;
Signal judging unit, judges the need of encoding and decoding for the audio-video signal inputted input source, if do not need encoding and decoding, then directly exports audio-video signal to interface selected cell; If need encoding and decoding, then export audio-video signal to audio frequency and video process chip;
Audio frequency and video process chip, exports interface selected cell to after carrying out encoding and decoding process to the audio-video signal of input;
Interface selected cell, the audio-video signal exported for Received signal strength judging unit and audio frequency and video process chip also selects different internal interfaces to export input processing chip to according to the media formats of audio-video signal;
Input processing chip, for the audio-video signal that receiving interface selected cell exports, separates audio signal, sends audio signal to sound processing chip by integrated circuit built-in audio bus I2S from the audio-video signal received;
Sound processing chip, is exported by loud speaker after the audio signal for transmitting input processing chip processes.
Alternatively, sound processing chip, also for gathering audio signal when needs carry out Sound control or sound passback to input source by microphone, and is transferred to Micro-processor MCV by the audio signal of collection by integrated circuit built-in audio bus I2S;
Micro-processor MCV, judges the need of encoding and decoding for the audio signal transmitted sound processing chip, if do not need encoding and decoding, then this audio signal is directly returned to input source by bluetooth transmitting-receiving module; If need encoding and decoding, then this audio signal be converted to usb data and be sent to audio frequency and video process chip by usb signal line;
Audio frequency and video process chip, after the usb data also for transmitting microprocessor carries out encoding and decoding process, carries out Sound control or sound passback to input source.
Alternatively, Micro-processor MCV, also for directly being received the audio signal not needing encoding and decoding of input source input by bluetooth transmitting-receiving module, and sends sound processing chip to by integrated circuit built-in audio bus I2S;
Sound processing chip, is exported by loud speaker after the audio signal also for transmitting Micro-processor MCV processes.
Alternatively, this system comprises:
For receiving the internal storage interface needing the audio-video signal of encoding and decoding of internal storage input;
And/or, for receiving the WIFI interface needing the audio-video signal of encoding and decoding of input source input;
And/or, for receiving the HDMI not needing the HDMI (High Definition Multimedia Interface) HDMI signal of encoding and decoding of input source input;
And/or, for receiving the MHL interface not needing the mobile terminal high-definition audio and video standard interface MHL signal of encoding and decoding of input source input.
Alternatively, be connected between interface selected cell with input processing chip by cable, cable comprises HDMI holding wire, MHL holding wire and usb signal line.
According to another aspect of the present invention, provide a kind of audio transmission control method, the method comprises:
By signal judging unit, the audio-video signal that input source inputs is judged the need of encoding and decoding, if do not need encoding and decoding, then directly export audio-video signal to interface selected cell; If need encoding and decoding, then export audio-video signal to audio frequency and video process chip;
Interface selected cell is exported to after carrying out encoding and decoding process by the audio-video signal of audio frequency and video process chip to input;
The audio-video signal exported by interface selected cell Received signal strength judging unit and audio frequency and video process chip also selects different internal interfaces to export input processing chip to according to the media formats of audio-video signal;
The audio-video signal exported by input processing chip receiving interface selected cell, separates audio signal, sends audio signal to sound processing chip by integrated circuit built-in audio bus I2S from the audio-video signal received;
Exported by loud speaker after the audio signal that input processing chip transmits being processed by sound processing chip.
Alternatively, when carrying out Sound control or sound passback to the input source of the audio-video signal needing decoding, method also comprises:
The audio signal of collection also for gathering audio signal by microphone, and is transferred to Micro-processor MCV by integrated circuit built-in audio bus I2S by sound processing chip;
By Micro-processor MCV, the audio signal that sound processing chip transmits is judged the need of encoding and decoding, if do not need encoding and decoding, then this audio signal is directly returned to input source by bluetooth transmitting-receiving module; If need encoding and decoding, then this audio signal be converted to usb data and be sent to audio frequency and video process chip by usb signal line;
By audio frequency and video process chip, after encoding and decoding process is carried out to the usb data of microprocessor transmission, Sound control is carried out to input source or carries out sound passback.
Alternatively, the method also comprises:
Receive and dispatch by bluetooth the audio signal not needing encoding and decoding that module directly receives input source input by Micro-processor MCV, and send sound processing chip to by integrated circuit built-in audio bus I2S;
Sound processing chip is exported by loud speaker after processing the audio signal that Micro-processor MCV transmits.
Alternatively, the method also comprises: by the audio-video signal needing encoding and decoding of internal storage interface internal storage input;
And/or, the audio-video signal needing encoding and decoding of input source input is received by WIFI interface;
And/or, the HDMI (High Definition Multimedia Interface) HDMI signal not needing encoding and decoding of input source input is received by HDMI;
And/or, the mobile terminal high-definition audio and video standard interface MHL signal not needing encoding and decoding of input source input is received by MHL interface.
Alternatively, be connected between interface selected cell with input processing chip by cable, cable comprises HDMI holding wire, MHL holding wire and usb signal line.
Technical scheme of the present invention, needing the audio-video signal of encoding and decoding and not needing the audio-video signal of encoding and decoding to judge for input source input, need encoding and decoding carry out encoding and decoding process after pass to interface selected cell, do not need directly passing to interface selected cell and selecting different internal interfaces to export input processing chip to by interface selected cell of encoding and decoding, from the audio-video signal received, separate audio signal through input processing chip, send audio signal to sound processing chip by I2S bus; Exported by loud speaker after the audio signal transmitted being processed by sound processing chip.Achieve the function not only supported the audio signal that local input source inputs but also support the audio signal that external input sources inputs, the audio signal efficiently solving the input of different audio input source is difficult to take into account the problem of process, has enriched the application scenarios of electronic product.
Accompanying drawing explanation
Fig. 1 is the block diagram of a kind of audio transmission control system that one embodiment of the invention provides;
Fig. 2 is the block diagram of a kind of audio transmission control system that one embodiment of the invention provides;
Fig. 3 is the block diagram of a kind of head-mounted display apparatus that one embodiment of the invention provides;
Fig. 4 is the flow chart of a kind of audio transmission control method that one embodiment of the invention provides.
Embodiment
Core concept of the present invention is: support cannot accomplish take into account process thus constrain the development of the electronic products such as class and the problem of application scenarios worn during the audio signal of multiple input sources input for wearing the electronic products such as class in prior art, needing the audio-video signal of encoding and decoding and not needing the audio-video signal of encoding and decoding to judge input source input, need encoding and decoding carry out encoding and decoding process after pass to interface selected cell, do not need directly passing to interface selected cell and selecting different internal interfaces to export input processing chip to by interface selected cell of encoding and decoding, from the audio-video signal received, audio signal is separated through input processing chip, audio signal is sent to sound processing chip by I2S bus, exported by loud speaker after the audio signal transmitted being processed by sound processing chip.The audio signal achieving the input of different audio input source can be taken into account comprehensively, has widened the range of application wearing the electronic products such as class.
In one embodiment of the invention, provide a kind of audio transmission control system, Fig. 1 is the block diagram of a kind of audio transmission control system that one embodiment of the invention provides, see Fig. 1, this audio transmission control system 100 comprises: signal judging unit 110, audio frequency and video process chip 120, interface selected cell 130, input processing chip 140 and sound processing chip 150;
Signal judging unit 110, judges the need of encoding and decoding for the audio-video signal inputted input source, if do not need encoding and decoding, then directly exports audio-video signal to interface selected cell 130; If need encoding and decoding, then export audio-video signal to audio frequency and video process chip 120;
Audio frequency and video process chip 120, exports interface selected cell 130 to after carrying out encoding and decoding process to the audio-video signal of input;
Interface selected cell 130, the audio-video signal exported for Received signal strength judging unit 110 and audio frequency and video process chip 120 also selects different internal interfaces to export input processing chip 140 to according to the media formats of audio-video signal;
Input processing chip 140, for the audio-video signal that receiving interface selected cell 130 exports, separates audio signal, sends audio signal to sound processing chip 150 by integrated circuit built-in audio bus I2S from the audio-video signal received;
Sound processing chip 150, is exported by loud speaker after the audio signal for transmitting input processing chip 140 processes.
Thus, this audio transmission control system of the present invention, play output after can processing respectively for the audio-video signal of different audio frequency and video input sources input, audio frequency or the audio-video signal of the input of different audio-video input source can be taken into account, make the application scenarios of electronic product abundanter.User according to current environment for use unrestricted choice audio frequency and video input source, can improve the experience of user.
Fig. 2 is the block diagram of a kind of audio transmission control system that one embodiment of the invention provides, see Fig. 2, sound processing chip 150, also for gathering audio signal when needs carry out Sound control or sound passback to input source by microphone, and the audio signal of collection is transferred to Micro-processor MCV by integrated circuit built-in audio bus I2S;
Micro-processor MCV, judges the need of encoding and decoding for the audio signal transmitted sound processing chip, if do not need encoding and decoding, then this audio signal is directly returned to input source by bluetooth transmitting-receiving module; If need encoding and decoding, then this audio signal be converted to usb data and be sent to audio frequency and video process chip 120 by usb signal line;
Audio frequency and video process chip 120, after the usb data also for transmitting microprocessor carries out encoding and decoding process, carries out Sound control or sound passback to input source.
In the present embodiment, Micro-processor MCV, also for directly being received the audio signal not needing encoding and decoding of input source input by bluetooth transmitting-receiving module, and sends sound processing chip 150 to by integrated circuit built-in audio bus I2S;
Sound processing chip 150, is exported by loud speaker after the audio signal also for transmitting Micro-processor MCV processes.
See Fig. 2, in the present embodiment, this system comprises: for receiving the internal storage interface needing the audio-video signal of encoding and decoding of internal storage input;
And/or, for receiving the WIFI interface needing the audio-video signal of encoding and decoding of input source input;
And/or, for receiving the HDMI not needing the HDMI (High Definition Multimedia Interface) HDMI signal of encoding and decoding of input source input;
And/or, for receiving the MHL interface not needing the mobile terminal high-definition audio and video standard interface MHL signal of encoding and decoding of input source input.
In the present embodiment, from internal storage interface input audio-video signal and by the audio-video signal that WIFI interface inputs be all need decoding audio-video signal.Internal storage can be SD card, no matter owing to being read audio-video signal from internal storage SD card or being all need to carry out encoding and decoding by audio frequency and video process chip to audio-video signal by the audio-video signal of WIFI wireless transmission method acquisition input source input, i.e. local encoding and decoding, thus this kind of input source is referred to as local input source.
The audio-video signal inputted from HDMI and MHL interface is all the audio-video signal not needing encoding and decoding, comprises the HDMI signal inputted by HDMI (High Definition Multimedia Interface) or the MHL signal inputted by mobile terminal high-definition audio and video standard interface.Because electronic product common format when transmission tone vision signal is HDMI and MHL, the audio-video signal electronic product of this two classes input source input can identify, do not need encoding and decoding process, but be directly inputted into interface selected cell, select different interfaces to export by interface selected cell according to signal medium form.So this kind of input source is referred to as external input sources.
In the present embodiment, be connected between interface selected cell with input processing chip by cable, cable comprises HDMI holding wire, MHL holding wire and usb signal line.
Be specifically described for the course of work of head-mounted display apparatus (HMD) to this audio transmission control system of the present invention below.Fig. 3 is the block diagram of a kind of head-mounted display apparatus that one embodiment of the invention provides; See Fig. 3, generally wear comprising processing unit (PU) and wearing unit (HMU) of display device.
Wherein, PU part comprises: internal storage device SD card, WIFI wireless module, audio frequency and video process chip, interface selected cell, interface selected cell is provided with HDMI input interface and MHL input interface, the audio-video signal of HDMI form is input in interface selected cell by HDMI input interface, and the audio-video signal of MHL form is input in interface selected cell by MHL interface.
HMU part comprises: input processing chip, sound processing chip, loud speaker, microphone and Micro-processor MCV, and receives and dispatches module with the bluetooth that MCU carries out communicating.
The audio-video signal of encoding and decoding is not needed to input and the course of work of the HMD play by loud speaker is: audio frequency and video process chip reads audio-video signal from local memory device SD card and the audio-video signal being converted to HDMI form after carrying out encoding and decoding process exports interface selected cell to; Or audio frequency and video process chip receives the audio-video signal of input source input by WIFI wireless transmission module with WIFI wireless mode and the audio-video signal being converted to HDMI form after carrying out encoding and decoding process exports interface selected cell to.The audio-video signal that interface selected cell receives the HDMI form that audio frequency and video process chip sends is selected, and exports input processing chip to by the input interface of HDMI transmission signal line through wearing cell module.Input processing chip separates audio signal in the audio-video signal received, and exports audio signal to sound processing chip by integrated circuit built-in audio bus I2S, exports by being play by the loud speaker of HMD after sound processing chip process.
The audio-video signal of encoding and decoding is not needed to input and the course of work of the HMD play by loud speaker is: what interface selected cell directly received input does not need the audio-video signal of the HDMI form of encoding and decoding or the audio-video signal of MHL form, and selected by the audio-video signal of HDMI or the MHL form received inner different interface to carry out transmission process, input processing chip is exported to through input interface respectively by HDMI signal transmssion line and MHL signal transmssion line, voice signal in audio-video signal is stripped out and is sent to sound processing chip through I2S bus by input processing chip, play by loud speaker after being processed by sound processing chip and export.
The broadcasting of audio signal in HMD achieving the input of different input source through said process exports, user can by the input source input audio signal of wired connection or the audio-video signal sent by WIFI wireless mode input source, audio-video signal can also be read from the local storage card of HMD, from main separation, the experience of user can be improved concerning user.
When needs carry out Sound control or sound passback to input source, sound processing chip gathers audio signal by microphone, and the audio signal of collection is transferred to Micro-processor MCV by integrated circuit built-in audio bus I2S; Micro-processor MCV, judges the need of encoding and decoding the audio signal of sound processing chip transmission, if do not need encoding and decoding, then this audio signal is directly returned to input source by bluetooth transmitting-receiving module; If need encoding and decoding, then this audio signal be converted to usb data and be sent to audio frequency and video process chip by usb signal line; Audio frequency and video process chip, after carrying out encoding and decoding process, carries out Sound control or sound passback to input source to the usb data of microprocessor transmission.In the present embodiment, when carrying out Sound control and sound passback to the input source of the audio-video signal needing encoding and decoding, in HMD, the course of work of corresponding units is: first, audio signal is gathered by the microphone of HMD, and the audio signal of collection is exported to sound processing chip, the Micro-processor MCV of HMD is exported after being processed by sound processing chip to through integrated circuit built-in audio bus I2S; Secondly, MCU processes the audio signal received and converts usb data to and usb signal line by being connected with MCU and audio frequency and video process chip respectively in HMD, exports the usb data after processing to audio frequency and video process chip; Finally, audio frequency and video process chip carries out dissection process to usb data after receiving the usb data of MCU passback, and carries out different disposal according to the result of resolving.It can be following situations that audio frequency and video process chip carries out different disposal: if the voice signal of this passback is sound control instruction, so carry out corresponding control treatment by audio frequency and video process chip according to this sound control instruction.If the voice signal of this passback is the audio communication carried out with input source, after being processed by audio frequency and video process chip, return to input source.Here, input source can be the mobile phone supporting WIFI wireless transmission and sound input and output, an embody rule of this situation can be that certain application program in mobile phone and HMD carry out interactive communication, now, by audio frequency and video process chip, the Audio Signal Processing of the passback received is become to meet this application program and require that the voice signal of form is sent to application program corresponding to this mobile phone by WIFI mode again.
When carrying out Sound control and sound passback to the input source of the audio-video signal not needing encoding and decoding, gather audio signal by sound processing chip by microphone, be transferred to Micro-processor MCV by integrated circuit built-in audio bus I2S; After the audio signal that sound processing chip transmits processes by Micro-processor MCV, return to input source by bluetooth transmitting-receiving module.
This bluetooth transmitting-receiving module and the difference being obtained audio-video signal by WIFI mainly application scenarios different, WIFI mainly receives the audio-video signal source of the Internet or mobile phone projection and so on, does not substantially need passback voice signal.If when having passback demand, realize according to aforesaid description.The application scenarios of Bluetooth wireless transmission mode HMD is connected to the handheld device such as mobile phone or panel computer pad, carry out calling or the demand of mobile phone games voice time use, now HMD can be regarded as the bluetooth earphone supporting Bluetooth transmission.
In other embodiments of the invention, the PU part of HMD and HMU part (namely between interface selected cell and input processing chip) can be connected by cable Cable, and cable Cable comprises HDMI holding wire, MHL holding wire and usb signal line.
In addition, present invention also offers a kind of audio transmission control method, Fig. 4 is the flow chart of a kind of audio transmission control method that one embodiment of the invention provides, and see Fig. 4, the method comprises:
Step S410, is judged the need of encoding and decoding the audio-video signal that input source inputs by signal judging unit, if do not need encoding and decoding, then directly exports audio-video signal to interface selected cell; If need encoding and decoding, then export audio-video signal to audio frequency and video process chip;
Step S420, exports interface selected cell after carrying out encoding and decoding process by the audio-video signal of audio frequency and video process chip to input
Step S430, the audio-video signal exported by interface selected cell Received signal strength judging unit and audio frequency and video process chip also selects different internal interfaces to export input processing chip to according to the media formats of audio-video signal;
Step S440, the audio-video signal exported by input processing chip receiving interface selected cell, separates audio signal, sends audio signal to sound processing chip by integrated circuit built-in audio bus I2S from the audio-video signal received;
Step S450, by loud speaker is exported after being processed by sound processing chip to the audio signal that input processing chip transmits.
In the present embodiment, when carrying out Sound control or sound passback to the input source of the audio-video signal needing decoding, method also comprises:
The audio signal of collection also for gathering audio signal by microphone, and is transferred to Micro-processor MCV by integrated circuit built-in audio bus I2S by sound processing chip;
By Micro-processor MCV, the audio signal that sound processing chip transmits is judged the need of encoding and decoding, if do not need encoding and decoding, then this audio signal is directly returned to input source by bluetooth transmitting-receiving module; If need encoding and decoding, then this audio signal be converted to usb data and be sent to audio frequency and video process chip by usb signal line;
By audio frequency and video process chip, after encoding and decoding process is carried out to the usb data of microprocessor transmission, Sound control is carried out to input source or carries out sound passback.
In the present embodiment, the method also comprises:
Receive and dispatch by bluetooth the audio signal not needing encoding and decoding that module directly receives input source input by Micro-processor MCV, and send sound processing chip to by integrated circuit built-in audio bus I2S;
Sound processing chip is exported by loud speaker after processing the audio signal that Micro-processor MCV transmits.
In the present embodiment, the method also comprises: by the audio-video signal needing encoding and decoding of internal storage interface internal storage input;
And/or, the audio-video signal needing encoding and decoding of input source input is received by WIFI interface;
And/or, the HDMI (High Definition Multimedia Interface) HDMI signal not needing encoding and decoding of input source input is received by HDMI;
And/or, the mobile terminal high-definition audio and video standard interface MHL signal not needing encoding and decoding of input source input is received by MHL interface.
In the present embodiment, be connected between interface selected cell with input processing chip by cable, cable comprises HDMI holding wire, MHL holding wire and usb signal line.
It should be noted that, this audio transmission control method of the present invention is corresponding with the audio transmission control system illustrated above, thus, the performing step of audio transmission control method see the explanation of the course of work part of aforementioned audio transmission control system, can not repeat them here.
In sum, the broadcasting that this audio transmission control system of the present invention and control method can realize the audio signal of different input source input exports, and has taken into account different audio input source.And user can by the input source input audio signal of wired connection or by WIFI wireless mode input audio-video signal, audio-video signal can also be read from the local memory device of audio transmission control system, from main separation, the experience of user can be improved concerning user.
The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., be all included in protection scope of the present invention.
Claims (10)
1. an audio transmission control system, is characterized in that, described audio transmission control system comprises: signal judging unit, audio frequency and video process chip, interface selected cell, input processing chip and sound processing chip;
Described signal judging unit, judges the need of encoding and decoding for the audio-video signal inputted input source, if do not need encoding and decoding, then audio-video signal is directly exported to described interface selected cell; If need encoding and decoding, then audio-video signal is exported to described audio frequency and video process chip;
Described audio frequency and video process chip, exports described interface selected cell to after carrying out encoding and decoding process to the audio-video signal of input;
Described interface selected cell, for receiving the audio-video signal of described signal judging unit and the output of described audio frequency and video process chip and selecting different internal interfaces to export described input processing chip to according to the media formats of audio-video signal;
Described input processing chip, for receiving the audio-video signal that described interface selected cell exports, separating audio signal, sending audio signal to described sound processing chip by integrated circuit built-in audio bus I2S from the described audio-video signal received;
Described sound processing chip, is exported by loud speaker after the audio signal for transmitting described input processing chip processes.
2. audio transmission control system as claimed in claim 1, is characterized in that,
Described sound processing chip, also for gathering audio signal when needs carry out Sound control or sound passback to input source by microphone, and is transferred to Micro-processor MCV by the audio signal of collection by integrated circuit built-in audio bus I2S;
Described Micro-processor MCV, judges the need of encoding and decoding for the audio signal transmitted described sound processing chip, if do not need encoding and decoding, then this audio signal is directly returned to input source by bluetooth transmitting-receiving module; If need encoding and decoding, then this audio signal be converted to usb data and be sent to described audio frequency and video process chip by usb signal line;
Described audio frequency and video process chip, after the described usb data also for transmitting described microprocessor carrying out encoding and decoding process, carrying out Sound control to input source or carrying out sound passback.
3. audio transmission control system as claimed in claim 2, it is characterized in that, described Micro-processor MCV, also for directly being received the audio signal not needing encoding and decoding of input source input by bluetooth transmitting-receiving module, and send described sound processing chip to by integrated circuit built-in audio bus I2S;
Described sound processing chip, is exported by loud speaker after the audio signal also for transmitting described Micro-processor MCV processes.
4. the audio transmission control system according to any one of claim 1-3, is characterized in that, this system comprises:
For receiving the internal storage interface needing the audio-video signal of encoding and decoding of described internal storage input;
And/or, for receiving the WIFI interface needing the audio-video signal of encoding and decoding of input source input;
And/or, for receiving the HDMI not needing the HDMI (High Definition Multimedia Interface) HDMI signal of encoding and decoding of input source input;
And/or, for receiving the MHL interface not needing the mobile terminal high-definition audio and video standard interface MHL signal of encoding and decoding of input source input.
5. audio transmission control system as claimed in claim 4, it is characterized in that, be connected by cable between described interface selected cell with described input processing chip, described cable comprises HDMI holding wire, MHL holding wire and usb signal line.
6. an audio transmission control method, is characterized in that, the method comprises:
By signal judging unit, the audio-video signal that input source inputs is judged the need of encoding and decoding, if do not need encoding and decoding, then directly export audio-video signal to interface selected cell; If need encoding and decoding, then export audio-video signal to audio frequency and video process chip;
Interface selected cell is exported to after carrying out encoding and decoding process by the audio-video signal of audio frequency and video process chip to input;
The audio-video signal exported by interface selected cell Received signal strength judging unit and audio frequency and video process chip also selects different internal interfaces to export input processing chip to according to the media formats of audio-video signal;
The audio-video signal exported by input processing chip receiving interface selected cell, separates audio signal, sends audio signal to sound processing chip by integrated circuit built-in audio bus I2S from the described audio-video signal received;
Exported by loud speaker after the audio signal that described input processing chip transmits being processed by sound processing chip.
7. audio transmission control method as claimed in claim 6, is characterized in that, when carrying out Sound control or sound passback to the input source of the audio-video signal needing decoding, described method also comprises:
The audio signal of collection also for gathering audio signal by microphone, and is transferred to Micro-processor MCV by integrated circuit built-in audio bus I2S by described sound processing chip;
By described Micro-processor MCV, the audio signal that described sound processing chip transmits is judged the need of encoding and decoding, if do not need encoding and decoding, then this audio signal is directly returned to input source by bluetooth transmitting-receiving module; If need encoding and decoding, then this audio signal be converted to usb data and be sent to described audio frequency and video process chip by usb signal line;
By described audio frequency and video process chip, after the described usb data transmitted described microprocessor carries out encoding and decoding process, Sound control is carried out to input source or carries out sound passback.
8. audio transmission control method as claimed in claim 7, it is characterized in that, described method also comprises:
Receive and dispatch by bluetooth the audio signal not needing encoding and decoding that module directly receives input source input by Micro-processor MCV, and send described sound processing chip to by integrated circuit built-in audio bus I2S;
Exported by loud speaker after the audio signal that described Micro-processor MCV transmits being processed by described sound processing chip.
9. audio transmission control method as claimed in claim 7, it is characterized in that, the method also comprises: by the audio-video signal needing encoding and decoding of internal storage input described in internal storage interface;
And/or, the audio-video signal needing encoding and decoding of input source input is received by WIFI interface;
And/or, the HDMI (High Definition Multimedia Interface) HDMI signal not needing encoding and decoding of input source input is received by HDMI;
And/or, the mobile terminal high-definition audio and video standard interface MHL signal not needing encoding and decoding of input source input is received by MHL interface.
10. the audio transmission control method according to any one of claim 6-9, is characterized in that,
Be connected between described interface selected cell with described input processing chip by cable, described cable comprises HDMI holding wire, MHL holding wire and usb signal line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410729938.7A CN104506932B (en) | 2014-12-04 | 2014-12-04 | A kind of audio transmission control system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410729938.7A CN104506932B (en) | 2014-12-04 | 2014-12-04 | A kind of audio transmission control system and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104506932A true CN104506932A (en) | 2015-04-08 |
| CN104506932B CN104506932B (en) | 2018-02-16 |
Family
ID=52948636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410729938.7A Active CN104506932B (en) | 2014-12-04 | 2014-12-04 | A kind of audio transmission control system and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104506932B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108600444A (en) * | 2018-04-16 | 2018-09-28 | 李苏平 | The method and multipath system of mobile terminal playing multipath audio signal based on input source material |
| CN109473081A (en) * | 2018-10-17 | 2019-03-15 | 歌尔科技有限公司 | A kind of interface circuit, display methods and display equipment |
| CN112312074A (en) * | 2019-08-02 | 2021-02-02 | 杭州海康威视数字技术股份有限公司 | Audio data output method and audio matrix |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1489379A (en) * | 2003-08-04 | 2004-04-14 | 上海源创数码科技有限公司 | Electronic photo frame with television receiving function |
| CN1941924A (en) * | 2006-09-15 | 2007-04-04 | 钱自强 | Digital phase reader with synchronous speech and characters |
| CN101063966A (en) * | 2006-04-28 | 2007-10-31 | 佛山市顺德区顺达电脑厂有限公司 | Personal digital assistant machine with hold-free handset function and method thereof |
| CN101600041A (en) * | 2008-06-02 | 2009-12-09 | 国民技术股份有限公司 | Can handle the DPF of multiple audio/video input signals |
| CN204465769U (en) * | 2014-12-04 | 2015-07-08 | 青岛歌尔声学科技有限公司 | A kind of audio transmission control system and head-mounted display apparatus |
-
2014
- 2014-12-04 CN CN201410729938.7A patent/CN104506932B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1489379A (en) * | 2003-08-04 | 2004-04-14 | 上海源创数码科技有限公司 | Electronic photo frame with television receiving function |
| CN101063966A (en) * | 2006-04-28 | 2007-10-31 | 佛山市顺德区顺达电脑厂有限公司 | Personal digital assistant machine with hold-free handset function and method thereof |
| CN1941924A (en) * | 2006-09-15 | 2007-04-04 | 钱自强 | Digital phase reader with synchronous speech and characters |
| CN101600041A (en) * | 2008-06-02 | 2009-12-09 | 国民技术股份有限公司 | Can handle the DPF of multiple audio/video input signals |
| CN204465769U (en) * | 2014-12-04 | 2015-07-08 | 青岛歌尔声学科技有限公司 | A kind of audio transmission control system and head-mounted display apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108600444A (en) * | 2018-04-16 | 2018-09-28 | 李苏平 | The method and multipath system of mobile terminal playing multipath audio signal based on input source material |
| CN109473081A (en) * | 2018-10-17 | 2019-03-15 | 歌尔科技有限公司 | A kind of interface circuit, display methods and display equipment |
| CN109473081B (en) * | 2018-10-17 | 2023-11-21 | 歌尔科技有限公司 | Interface circuit, display method and display device |
| CN112312074A (en) * | 2019-08-02 | 2021-02-02 | 杭州海康威视数字技术股份有限公司 | Audio data output method and audio matrix |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104506932B (en) | 2018-02-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102820032B (en) | Speech recognition system and method | |
| AU2014295217B2 (en) | Audio processor for orientation-dependent processing | |
| CN107277691B (en) | Multi-channel audio playing method and system based on cloud and audio gateway device | |
| CN204465769U (en) | A kind of audio transmission control system and head-mounted display apparatus | |
| CN104301782A (en) | Method and device for outputting audios and terminal | |
| CN103260124A (en) | Audio testing method and system of mobile terminal | |
| CN107209378B (en) | Head-mounted display device and head-mounted display system | |
| CN104506932A (en) | Audio transmission control system and control method | |
| CN110139151A (en) | The processing method and electronic equipment of audio data | |
| CN104461952A (en) | Interface sharing method and terminal | |
| JP5661803B2 (en) | System and method for interfacing a white space device with a host device | |
| US11095982B2 (en) | Speaker apparatus, electronic apparatus connected therewith, and controlling method thereof | |
| KR20160112571A (en) | Non-protocol wireless interface for all interface standards | |
| KR20180083572A (en) | Electronic apparatus and control method thereof | |
| CN106412550B (en) | Camera connecting-type recording device | |
| KR20120072254A (en) | Apparatus for processing a multi-channel audio signal and method thereof | |
| WO2017177802A1 (en) | Audio/video playback method and apparatus, and computer storage medium | |
| CN102970637A (en) | Interactive system of electroacoustic product and audio and video playing device | |
| CN206517484U (en) | Audio frequency and video instructor in broadcasting's equipment | |
| CN107273087B (en) | Audio input/output system, equipment and method based on Type-C interface | |
| KR102196628B1 (en) | Type-c universal serial bus digital media player device | |
| CN105847908A (en) | Split display system based on power line system and split display method | |
| CN202696777U (en) | A wireless audio-video concentrator simultaneously used by a plurality of users | |
| CN110971744B (en) | Method and device for controlling voice playing of Bluetooth sound box | |
| CN113542783A (en) | Audio processing method, live broadcast equipment and live broadcast system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240515 Address after: 266104 No. 500, Songling Road, Laoshan District, Qingdao, Shandong Patentee after: GOERTEK TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 266061 5, 3 building, Fortune Plaza, 18 Qinling Mountains Road, Laoshan District, Qingdao, Shandong. Patentee before: QINGDAO GOERTEK TECHNOLOGY Co.,Ltd. Country or region before: China |