CN102354278A - Method and equipment for processing audio data - Google Patents
Method and equipment for processing audio data Download PDFInfo
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- CN102354278A CN102354278A CN2011101797239A CN201110179723A CN102354278A CN 102354278 A CN102354278 A CN 102354278A CN 2011101797239 A CN2011101797239 A CN 2011101797239A CN 201110179723 A CN201110179723 A CN 201110179723A CN 102354278 A CN102354278 A CN 102354278A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
- G06F3/162—Interface to dedicated audio devices, e.g. audio drivers, interface to CODECs
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L12/2805—Home Audio Video Interoperability [HAVI] networks
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Abstract
The invention discloses a method and equipment for processing audio data. The method comprises the following steps: connecting an application processor (AP) with a wireless modem module through a universal serial bus (USB), and virtualizing a codec in the modem module into sound card equipment through parameter configuration; sending an audio control command to the modem module by the AP through a virtualized USB command channel; and controlling the internal codec to execute corresponding processing on the audio data by the modem module according to the audio control command. Through the method and the equipment for processing the audio data, the problem that wasting of resources is caused because the codec resources of the modem module are not fully utilized in a traditional AP+modem scheme can be solved.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of processing of audio data method and apparatus.
Background technology
Along with popularizing of mobile phone, palm PC handheld devices such as (pad), the human epoch that entered into the extensive development of multimedia.In various handheld devices, audio frequency apparatus is must be obligato, sometimes the quality of equipment tonequality even be directly connected to the location of product price.
In the prior art, a lot of smart mobile phones and pad product all are to use the conceptual design of application processor (AP, Application Processor)+modulator-demodular unit (modem) module.The modem module is also referred to as wireless module usually, in the modem module, has comprised plenty hardware resources, like audio frequency codec (coder), various abundant Peripheral Interfaces etc.In the audio scheme design of using the AP+modem product, increase an outside codec mostly as sound card equipment.This considers some reasons: use AP centralized control codec, convenient programming; Some require harsh product also need extend out codec to tonequality.When the control of codec concentrated on the AP side, the modem module just only played the effect of transmitting original audio data.
In products such as the mobile phone of present AP+modem scheme, Pad; The resource of modem module is not fully utilized; Comprise codec like the modem inside modules; And in use only having used outside codec as sound card equipment, this has just caused the waste of codec resource, also is unfavorable for better improving user experience.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of processing of audio data method and apparatus, is not fully used with the codec resource that solves the modem module in the existing AP+modem scheme, causes the problem of the wasting of resources.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of processing of audio data method; Application processor (AP) links to each other through USB (USB) with wireless (modem) module; And the coder (codec) in the said modem module is virtual through parameter configuration to be sound card equipment, and this method comprises:
Said AP sends the audio frequency control command through the USB command channel that fictionalizes to the modem module;
Said modem module is according to the audio frequency control command that receives, and the inner codec of control carries out the handled to voice data.
Said modem module is according to the audio frequency control command that receives, and the inner codec of control carries out the handled to voice data, is specially:
Said modem module is according to the audio frequency control command that receives; From the voice data memory block of self inner ARM, extract corresponding voice data, the voice data of extraction offers said codec after digital signal processing (DSP) resume module of modem inside modules; Said codec exports to outer audio equipment after voice data is handled.
The voice data that from the voice data memory block of ARM, extracts is: the voice data that said ARM is intrinsic, or said AP is transferred to said modem module through the USB voice-grade channel that fictionalizes and by the voice data of the temporary transient storage of the ARM of said modem module.
This method further comprises: said AP is through sending the audio frequency control command to the modem module, and the audio frequency parameter of the codec in the said modem module is configured.
This method further comprises:
The external outside sound card equipment of said AP, through with said outside sound card equipment and the change-over switch that the modem module links to each other respectively, control the codec co-ordination in said outside sound card equipment and the modem module.
The present invention also provides a kind of processing of audio data equipment, comprising: AP and modem module, said AP links to each other through USB with the modem module, and said modem module in codec through parameter configuration virtual be sound card equipment;
Said AP is used for sending the audio frequency control command through the USB command channel that fictionalizes to the modem module;
Said modem module is used for according to the audio frequency control command that receives, and the inner codec of control carries out the handled to voice data.
Said modem module is further used for; According to the audio frequency control command that receives; From the voice data memory block of self inner ARM, extract corresponding voice data; The voice data that extracts offers said codec after the DSP of modem inside modules resume module, export to outer audio equipment after by said codec voice data being handled.
The said voice data that from the voice data memory block of ARM, extracts is: the voice data that said ARM is intrinsic, or said AP is transferred to said modem module through the USB voice-grade channel that fictionalizes and by the voice data of the temporary transient storage of the ARM of said modem module.
Said AP is further used for, and through sending the audio frequency control command to the modem module, the audio frequency parameter of the codec in the said modem module is configured.
This equipment also comprises: the outside sound card equipment that links to each other with AP, and the change-over switch that links to each other respectively with said outside sound card equipment and modem module;
Said AP coordinates the codec co-ordination in said outside sound card equipment and the modem module through the said change-over switch of general I/O (GPIO) order control.
A kind of processing of audio data method and apparatus provided by the present invention; AP links to each other through USB with the modem module; And the codec in the modem module is virtual through parameter configuration to be sound card equipment, and AP sends the audio frequency control command through the USB command channel that fictionalizes to the modem module; The modem module is according to the audio frequency control command that receives, and the inner codec of control carries out the handled to voice data.Through the present invention, the codec resource that has solved the modem module in the existing AP+modem scheme is not fully used, and causes the problem of the wasting of resources; And the codec that the present invention can effectively utilize the modem module to carry expands a new sound card through USB, thereby can reach cost-effective purpose; In addition,, can satisfy the requirement of voice communication real-time, improve user experience because the voice data among the present invention is directly exported to outer audio equipment after the modem module is handled.
Description of drawings
Fig. 1 is the structural representation of the processing of audio data equipment of the embodiment of the invention one;
Fig. 2 is the structural representation of the processing of audio data equipment of the embodiment of the invention two.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment technical scheme of the present invention is further set forth in detail.
For the codec resource that solves the modem module in the existing AP+modem scheme is not fully used; And cause the problem of the wasting of resources; A kind of processing of audio data method and apparatus provided by the present invention; Be intended to mode through the module virtual sound card, with the codec in the modem module virtual be sound card equipment; With passing through USB (USB between AP and the modem module; Universal Serial Bus) links to each other; And USB need fictionalize at least two interfaces, and interface is used for the mutual of audio frequency control command, and interface is as the voice-grade channel of virtual sound card equipment.AP just can carry out the handled to voice data through the codec in the USB control modem module like this, thereby the codec resource of modem module is fully utilized, and has avoided the wasting of resources.
A kind of processing of audio data equipment that the embodiment of the invention one is provided, as shown in Figure 1, mainly comprise: AP, modem module and outer audio equipment.AP links to each other through USB with the modem module, and the modem module in codec through parameter configuration virtual be sound card equipment; AP is used for sending the audio frequency control command through the USB command channel that fictionalizes to the modem module; The modem module is used for according to the audio frequency control command that receives, and the inner codec of control carries out the handled to voice data.Outer audio equipment is loudspeaker, earphone or the like, is used to realize the broadcast of audio frequency.
The modem inside modules comprises: ARM, codec and digital signal processing (DSP; Digital SignalProcessing) module; Stores audio data in the voice data memory block of ARM; The modem module is according to the audio frequency control command that receives; From the voice data memory block of self inner ARM, extract corresponding voice data, the voice data of extraction offers codec after the DSP of modem inside modules resume module, export to outer audio equipment after by codec voice data being handled and carry out voice playing.Wherein, The voice data that from the voice data memory block of ARM, extracts can be voice data (being permanent storage among the ARM) that ARM is intrinsic, or AP is transferred to the modem module through the USB voice-grade channel that fictionalizes and by the voice data of the temporary transient storage of ARM of modem module.
Preferable, AP can also be through sending the audio frequency control command to the modem module, the audio frequency parameter of the codec in the modem module is configured, as disposes stereo, monophony, volume or the like.
The voice data disposal route further explain that realizes in the face of the said equipment down.
As shown in Figure 1, the configuration of the codec in the modem module can be satisfied most application demands, through parameter configuration, opens each item function of codec, makes it possess the basic function as virtual sound card.AP links to each other through USB with the modem module, and the codec of modem module is modeled as sound card equipment through USB.When the needs audio plays; The music of MP3 format for example; At first use the audio software demoder of AP to be converted into pulse code modulation (PCM) (PCM; Pulse Code Modulation) voice data sends in the voice data memory block of ARM in the modem module pcm audio data temporary then through USB; The modem inside modules can be transferred to the DSP module from ARM with the pcm audio data and carry out being transferred to codec by the DSP module after DSP handles.The configuration of codec can be provided with as required.Through after the codec processing audio frequency being outputed to outer audio equipment,, accomplish the broadcast of audio frequency like equipment such as speaker, loudspeakers.In this process, AP can pass through some configurations that AT (Access Terminal, Modem commands language) order is provided with sound card, like the configurations such as size of stereo or monophony, volume.USB audio data transmission passage between modem module and the AP is abstracted into a USB sound card equipment, mainly is to adopt the standard USB audio class (USB audio frequency apparatus class) of USB normalized definition to enumerate into a USB sound card equipment.In the modem module side,, can set up a new task sc_task and carry out the control of respective audio in order to control conveniently.In general, system only just can use audio frequency when multimedia application such as listening to the music, see video is perhaps conversed.When AP initiates audio task, only regard the modem module as the USB sound card, accomplish the control of audio frequency through the visit sound card.The control of audio frequency is specifically accomplished by modem module controls codec.
Below with the incoming call with the dialing these two application scenarioss be example, explain AP and modem module cooperatively interact the completion voice-operated process.
After AP and the normal startup of modem module, when the modem module side had the incoming call incoming call, the modem module can report incoming information to AP.After AP receives incoming call, at first judge currently,, then stop earlier playing, and note the current position that stops to play, play so that behind end of conversation, recover if play whether just in audio plays.The audio frequency function of standard all can provide these API (ApplicationProgramming Interface) interface at present, can call corresponding function and accomplish operations such as broadcast, time-out and recovery.After stopping to play current audio frequency, will carry out the broadcast of incoming ring tone this moment.Play incoming ring tone two kinds of methods are arranged: the one, send the tinkle of bells from the AP side and play (temporary in the ARM of modem module) to the modem module, the 2nd, the electric bell sound reproduction is to modem module side (as the inherent data of ARM in the modem module) in the future.Consider answer with voice-grade channel switch seamless, it is more favourable that incoming ring tone is copied to module side in advance.The AP side can notify the modem module to play incoming ring tone through sending AT+RING (jingle bell) order like this.When answering, AP can send and answer AT and order the module to modem, after the modem module receives this order, can stop the broadcast of the tinkle of bells, and codec switches to corresponding voice-grade channel according to conversation configuration control, just can converse afterwards.In this process, can order the setting of carrying out some audio frequency through AT, size of control volume or the like.Behind talk-through, the voice playing that AP can recover to suspend.Need to prove that behind talk-through, modem module meeting switch audio passage is waited for the transmission of AP side USB voice data then to AP voice playing state (default value).Same principle, when coming fresh information since message alert tone can fixed storage in the modem module, so the modem module can be from corresponding voice data memory block information extraction prompt tone and accomplish and play.
The audio setting process of calling is similar with incoming call.When calling, whether AP at first judged currently just in audio plays before modem module Sending dialled number AT order, if having, then suspended and play.After the modem module received the dialing order, corresponding audio configuration was accomplished in the switching that can converse voice-grade channel; Behind talk-through, recover corresponding audio setting more as required, recover voice playing.
Above embodiment has explained that the codec that only uses in the modem module controls the situation of codec as the total system audio frequency.In practical application; Can select flexibly according to actual conditions, as: to some system very high, can use outside codec as the main audio opertaing device to audio request; And the modem module simulation is become a subsequent use sound card, thereby some comparatively complicated audio frequency controls are provided.This structure is also referred to as the structure of alliteration card, below cooperatively interacts with regard to the alliteration card and to accomplish voice-operated process and describe.
As shown in Figure 2, in the audio data processing device of alliteration card structure, AP links to each other with outside sound card equipment with the modem module respectively, and the change-over switch in the equipment links to each other with AP, modem module and outside sound card equipment respectively.AP is through general I/O (GPIO; General Purpose Input Output) come control its switch to carry out the switching of voice-grade channel; As: can the output channel of the codec of modem module be switched to loudspeaker through the GPIO control its switch; The output channel of outside sound card equipment is switched to earphone, can accomplish the output of two-way audio like this, can listen the song limit to make a phone call in the limit.For some particular machines, like lovers' machine, two earphone slots can be provided, the output of two independent audio frequency is provided, such equipment just can be used as two music players.An audio user interface (UI) Control-Menu also can be provided, be combined between main audio opertaing device (outside sound card equipment) and the secondary voice-operated device (codec that the modem module is interior) according to the field of audio plays and select.Except above-mentioned application, as subsequent use sound card, when the main sound card of system goes wrong, also there is a subsequent use sound card equipment in the sound card of module, the audio frequency that can not influence total system uses, and can prolong the serviceable life of audio system greatly.In addition, the audio frequency output of coordinating two sound cards of control can realize the music trick play that some are complicated, and this meets the user to the increasingly high demand of music effect.Above-mentioned application all is to be realized by the codec co-ordination (switching of voice-grade channel or the like) that AP coordinates in outside sound card equipment and the modem module through the GPIO control its switch.
In sum, through virtual sound card configuration of the present invention and corresponding voice data disposal route thereof, the codec resource that has solved the modem module in the existing AP+modem scheme is not fully used, and causes the problem of the wasting of resources; And the codec that the present invention can effectively utilize the modem module to carry expands a new sound card through USB, promptly on the basis that does not influence the audio frequency control efficiency, saves a sound card equipment, thereby can reach cost-effective purpose.In addition,, can satisfy the requirement of voice communication real-time, improve user experience because the voice data among the present invention is directly exported to outer audio equipment after the modem module is handled.Have, the codec of modem module can be used as the subsequent use of outside main sound card equipment again, through the co-ordination of active and standby sound card, can realize the music trick play that some are complicated, expands some bright and colourful audio-frequency functions.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (10)
1. processing of audio data method; It is characterized in that; Application processor (AP) links to each other through USB (USB) with wireless (modem) module, and said modem module in coder (codec) through parameter configuration virtual be sound card equipment, this method comprises:
Said AP sends the audio frequency control command through the USB command channel that fictionalizes to the modem module;
Said modem module is according to the audio frequency control command that receives, and the inner codec of control carries out the handled to voice data.
2. according to the said processing of audio data method of claim 1, it is characterized in that said modem module is according to the audio frequency control command that receives, the inner codec of control carries out the handled to voice data, is specially:
Said modem module is according to the audio frequency control command that receives; From the voice data memory block of self inner ARM, extract corresponding voice data, the voice data of extraction offers said codec after digital signal processing (DSP) resume module of modem inside modules; Said codec exports to outer audio equipment after voice data is handled.
3. according to the said processing of audio data method of claim 2; It is characterized in that; The voice data that from the voice data memory block of ARM, extracts is: the voice data that said ARM is intrinsic, or said AP is transferred to said modem module through the USB voice-grade channel that fictionalizes and by the voice data of the temporary transient storage of the ARM of said modem module.
4. according to claim 1,2 or 3 said processing of audio data methods, it is characterized in that this method further comprises: said AP is through sending the audio frequency control command to the modem module, and the audio frequency parameter of the codec in the said modem module is configured.
5. according to claim 1,2 or 3 said processing of audio data methods, it is characterized in that this method further comprises:
The external outside sound card equipment of said AP, through with said outside sound card equipment and the change-over switch that the modem module links to each other respectively, control the codec co-ordination in said outside sound card equipment and the modem module.
6. a processing of audio data equipment is characterized in that, comprising: AP and modem module, said AP links to each other through USB with the modem module, and said modem module in codec through parameter configuration virtual be sound card equipment;
Said AP is used for sending the audio frequency control command through the USB command channel that fictionalizes to the modem module;
Said modem module is used for according to the audio frequency control command that receives, and the inner codec of control carries out the handled to voice data.
7. according to the said processing of audio data equipment of claim 6; It is characterized in that; Said modem module is further used for, and according to the audio frequency control command that receives, from the voice data memory block of self inner ARM, extracts corresponding voice data; The voice data that extracts offers said codec after the DSP of modem inside modules resume module, export to outer audio equipment after by said codec voice data being handled.
8. according to the said processing of audio data equipment of claim 7; It is characterized in that; The said voice data that from the voice data memory block of ARM, extracts is: the voice data that said ARM is intrinsic, or said AP is transferred to said modem module through the USB voice-grade channel that fictionalizes and by the voice data of the temporary transient storage of the ARM of said modem module.
9. according to claim 6,7 or 8 said processing of audio data equipment, it is characterized in that said AP is further used for, through sending the audio frequency control command to the modem module, the audio frequency parameter of the codec in the said modem module is configured.
10. according to claim 6,7 or 8 said processing of audio data equipment, it is characterized in that this equipment also comprises: the outside sound card equipment that links to each other with AP, and the change-over switch that links to each other respectively with said outside sound card equipment and modem module;
Said AP coordinates the codec co-ordination in said outside sound card equipment and the modem module through the said change-over switch of general I/O (GPIO) order control.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110179723.9A CN102354278B (en) | 2011-06-29 | 2011-06-29 | The processing method and equipment of a kind of voice data |
| PCT/CN2011/080989 WO2013000213A1 (en) | 2011-06-29 | 2011-10-19 | Audio data processing method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110179723.9A CN102354278B (en) | 2011-06-29 | 2011-06-29 | The processing method and equipment of a kind of voice data |
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| CN102354278A true CN102354278A (en) | 2012-02-15 |
| CN102354278B CN102354278B (en) | 2017-09-15 |
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| CN103077003A (en) * | 2012-12-27 | 2013-05-01 | 中兴通讯股份有限公司 | Method, device and system for outputting HiFi (High Fidelity) audio frequency |
| WO2016011643A1 (en) * | 2014-07-24 | 2016-01-28 | 华为技术有限公司 | Method for terminating call, application processor and modem |
| CN110286874A (en) * | 2019-06-28 | 2019-09-27 | 联想(北京)有限公司 | A kind of processing method and electronic equipment |
| CN110444233A (en) * | 2019-07-02 | 2019-11-12 | 福建新大陆通信科技股份有限公司 | A kind of the audio reception playback method and system of number sound shadow amusement equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2013000213A1 (en) | 2013-01-03 |
| CN102354278B (en) | 2017-09-15 |
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