CN102063908A - Audio data transmission method between PC and mobile phone - Google Patents
Audio data transmission method between PC and mobile phone Download PDFInfo
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- CN102063908A CN102063908A CN2010105079810A CN201010507981A CN102063908A CN 102063908 A CN102063908 A CN 102063908A CN 2010105079810 A CN2010105079810 A CN 2010105079810A CN 201010507981 A CN201010507981 A CN 201010507981A CN 102063908 A CN102063908 A CN 102063908A
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Abstract
The invention discloses an audio data transmission method between a PC (personal computer) and a mobile phone. The method comprises the following steps: an audio file in the PC is decoded into a PCM (pulse code modulation) audio stream; the PCM audio stream is sent to a USB (universal serial bus) module in the PC and packed according to a USB protocol; the packed PCM audio stream is sent to a USB module in the mobile phone and unpacked; the unpacked PCM audio stream is sent to a D/A (digital/analogue) converter in the mobile phone for D/A conversion; and the converted analogue audio data is amplified to a speaker of the mobile phone to be played.
Description
Technical field
The present invention relates to carry out between a kind of PC and the mobile phone method of audio data transmission, relate in particular to and utilize the USB synchronous transfer module to realize the method for audio data transmission between PC and the mobile phone.
Background technology
Now the office PC of a lot of companies does not have audio amplifier, perhaps simply audio output port has been sealed up, and this computer that can't audio plays makes the people very gloomy and boring.How not have to make office PC playing back music or other audio file become the problem that the present invention will solve under the situation of audio amplifier yet.At present, mobile phone is a means of communication easy to carry and that generally use, and key is that present mobile phone nearly all has the function of displaying audio file.And present PC and mobile phone are all used the USB interface technology, and both can communicate by USB interface.USB is the abbreviation of English Universal Serial BUS (USB (universal serial bus)), and its Chinese is abbreviating " logical get lines crossed " as, is an external bus standard, is used for being connected and communication of standard computer and external unit, is the interfacing that is applied in the PC field.The plug and play of USB interface support equipment and hot plug function.USB will unite proposition in the end of the year 1994 by many companies such as Intel, Compaq, IBM, Microsoft.
Based on above-mentioned situation, the present inventor has expected utilizing USB path and mobile phone to realize the voice playing of PC, makes mobile phone be equivalent to the audio amplifier of PC.
Equally,, then can utilize the present invention to carry out the recording of PC end, make mobile phone be equivalent to the MIC of PC at the MIC of mobile phone for the PC that does not have microphone (MIC) port.
Summary of the invention
The objective of the invention is to, the method for carrying out audio data transmission between a kind of PC and the mobile phone is provided.By the inventive method, PC that can not displaying audio file owing to there is not audio amplifier can pass through the mobile phone play audio file, and does not have the PC of MIC port can utilize the MIC of mobile phone to record, thereby has expanded the function of PC.And, because the present invention does not make any change to the hardware of PC or mobile phone, can utilize existing P C and mobile phone fully, therefore greatly reduce cost.
The present invention adopts following technical scheme:
The invention provides the method for carrying out audio data transmission between a kind of PC and the mobile phone, may further comprise the steps: the audio file among this PC is decoded as pcm audio stream; The USB module that this pcm audio stream is sent among this PC is packed according to usb protocol; The USB module that pcm audio stream after the packing is sent in this mobile phone unpacks; The D/A converter that pcm audio stream after unpacking is sent in this mobile phone carries out digital-to-analog conversion; And the loudspeaker that the analog audio data after the conversion is amplified to this mobile phone are play.
Preferably, the pcm audio stream after this packing is sent to this mobile phone by the USB interface of this PC and the USB interface of this mobile phone from this PC, and wherein the USB interface of the USB interface of this PC and this mobile phone connects by the USB connecting line.
Preferably, when this USB connecting line was connected to the USB interface of this mobile phone, the user interface of this mobile phone the USB choice box occurred and selects the USB audio frequency for the user.
Preferably, after this USB connecting line was connected to the USB interface of this PC, the user was arranged so that in this PC side the Default device of sound playing among this PC is changed the audio frequency apparatus into USB.
The present invention also provides the method for carrying out audio data transmission between a kind of PC and the mobile phone, may further comprise the steps: by the MIC port typing MIC audio file of this mobile phone end; The D/A converter that this MIC audio file is sent in this mobile phone carries out digital-to-analog conversion, obtains pcm audio stream; The USB module that this pcm audio stream is sent in this mobile phone is packed according to usb protocol; The USB module that pcm audio stream after the packing is sent among this PC unpacks; And this pcm audio stream after unpacking is sent to the coding that DSP module among this PC is carried out corresponding format.
Preferably, the pcm audio stream after this packing is sent to this mobile phone by the USB interface of this PC and the USB interface of this mobile phone from this PC, and wherein the USB interface of the USB interface of this PC and this mobile phone connects by the USB connecting line.
Preferably, when this USB connecting line was connected to the USB interface of this mobile phone, the user interface of this mobile phone the USB choice box occurred and selects the USB audio frequency for the user.
Preferably, after this USB connecting line was connected to the USB interface of this PC, the user was arranged so that in this PC side the Default device of recording among this PC is changed the audio frequency apparatus into USB.
Pass through the inventive method, PC that can not displaying audio file owing to there is not audio amplifier can pass through the mobile phone play audio file, mobile phone is equivalent to the audio amplifier of this PC, and the PC that does not have the MIC port can utilize the MIC of mobile phone to record, mobile phone is equivalent to the MIC of this PC, thereby has expanded the function of PC.And, because the present invention does not make any change to the hardware of PC or mobile phone, can utilize existing P C and mobile phone fully, therefore greatly reduce cost.
Further specify the present invention below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the system chart that carries out audio data transmission between PC of the present invention and the mobile phone;
Fig. 2 is the process flow diagram that carries out audio data transmission between PC according to an embodiment of the invention and the mobile phone;
Fig. 3 is the synoptic diagram of the USB choice box at mobile phone UI according to an embodiment of the invention interface; And
Fig. 4 be according to another embodiment of the invention PC and mobile phone between carry out the process flow diagram of audio data transmission.
Embodiment
Introduce specific embodiments of the invention below by Fig. 1-4.
Fig. 1 is the system chart that carries out audio data transmission between PC of the present invention and the mobile phone.As shown in Figure 1, this PC comprises DSP module and USB module.
DSP is the abbreviation of Digital Signal Processing, the expression digital signal processor.Informationalized basis is digitizing, and one of digitized core technology is a digital signal processing, and the task of digital signal processing need be finished by the DSP device to a great extent, and the DSP technology has become cutting edge technology people's growing interest and that obtain developing rapidly.Digital signal processing is to utilize computing machine or dedicated treatment facility, with digital form to signal gather, processing such as conversion, filtering, valuation, enhancing, compression, identification, to obtain meeting the signal form of people's needs.The DSP technology can be applicable to speech processes, comprises voice coding, phonetic synthesis, speech recognition, voice enhancing, voice mail, voice storage etc.DSP module among the present invention is used for audio file is carried out encoding and decoding, comprises the audio file such as MP3 format is decoded as pcm audio stream and is required form with the pcm audio stream encryption, and as MP3, WMA etc.PCM is the abbreviation of English pulse-code modulation, and promptly pulse code modulation (PCM) claims pulse-code modulation again.Pcm audio stream is DAB.
The pcm audio stream that this USB module is used for the DSP module is sent is packed according to usb protocol, and the data after the packing can send to mobile phone by the USB interface of PC.This USB module also is used for the pcm audio stream from the mobile phone side is unpacked according to usb protocol, and the data after unpacking then are sent to the coding that the DSP module is carried out required form.
In Fig. 1, this mobile phone comprises USB module and D/A (A/D) converter (hereinafter to be referred as D/A converter).This USB module is used for the pcm audio stream from the PC side is unpacked according to usb protocol, and the data after will unpacking send to D/A converter.This USB module also is used for the pcm audio stream from D/A converter is packed according to usb protocol, and the data after the packing are sent to the PC side by the USB interface of this mobile phone.This D/A converter is used for the pcm audio from the USB module of mobile phone is flow to the conversion of line number mould, and the analog audio data after the conversion is amplified to the loudspeaker of mobile phone and plays.This D/A converter also is used for the analog audio data of the MIC port typing of mobile phone is carried out analog to digital conversion, obtains the pcm audio stream of numeral, and this pcm audio stream is sent to the USB module.
Fig. 2 is the process flow diagram that carries out audio data transmission between PC according to an embodiment of the invention and the mobile phone.Present embodiment explanation can not displaying audio file owing to there is not audio amplifier PC utilize mobile phone to carry out the process of displaying audio file.What need explanation earlier is, mobile phone in the present embodiment before dispatching from the factory by manufacturer to its burn recording software, thereby has the function of carrying out audio data transmission with PC by the USB path, promptly, make PC except can being undertaken the voice playing by existing loudspeaker or earphone, also increased can by USB path transmitting audio data to the USB audio frequency apparatus with audio plays.As shown in Figure 2, at first, PC and the mobile phone USB interface by is separately coupled together (step 20) with the USB connecting line.The user interface of mobile phone (UI interface) ejects the USB choice box and selects (step 21) for the user.As shown in Figure 3, the USB choice box comprises USB flash disk, options such as IP Camera and USB audio frequency.In the present embodiment, the user selects the USB audio option to activate the function (step 22) of PC by USB path audio plays.Then, the user is arranged so that in the PC side that the Default device of sound playing is changed among the PC and is USB audio frequency apparatus (step 23).Particularly, the user selects " sound and audio frequency apparatus " option in control panel, in " sound and audio frequency apparatus " property box, select " audio frequency ", click on sound playing one hurdle " senior ", to eject the advanced audio property box, in the drop-down menu of " loudspeaker setting ", select the USB audio frequency apparatus, thereby make that the Default device of sound playing is changed the audio frequency apparatus into USB among the PC.Like this, the audio file among the PC will no longer be play by loudspeaker or the earphone of PC self, play but be transferred to the USB audio frequency apparatus by the USB path.Particularly, after PC sound intermediate frequency file was opened, audio file was decoded as pcm audio stream (step 24) by the DSP module among the PC.This pcm audio stream is sent to USB module among this PC according to usb protocol pack (step 25).The USB module that pcm audio stream after the packing is sent in this mobile phone by the USB connecting line unpacks (step 26).The D/A converter that pcm audio stream after unpacking is sent in this mobile phone carries out digital-to-analog conversion (step 27).At last, the loudspeaker (SPK) that are amplified to this mobile phone of the analog audio data after the conversion are play (step 28).
Fig. 4 be according to another embodiment of the invention PC and mobile phone between carry out the process flow diagram of audio data transmission.The present embodiment explanation process that the PC that can not record utilizes the MIC port of mobile phone to record owing to there is not microphone (MIC).What need explanation earlier is, mobile phone in the present embodiment before dispatching from the factory by manufacturer to its burn recording software, carry out the function of audio data transmission thereby have with PC by the USB path, that is, making that PC has increased can be by USB path transmitting audio according to this from USB audio frequency apparatus inputting audio.Preferably, the above-mentioned functions that mobile phone increases among the aforementioned functional of the increase of the mobile phone in the present embodiment and the last embodiment can realize by a software package.As shown in Figure 4, at first, PC and the mobile phone USB interface by is separately coupled together (step 40) with the USB connecting line.The user interface of mobile phone (UI interface) ejects the USB choice box and selects (step 41) for the user.Mention as previous embodiment, the USB choice box comprises USB flash disk, options such as IP Camera and USB audio frequency.In the present embodiment, the user selects the USB audio option to activate the function (step 42) of PC by USB path inputting audio.Then, the user is arranged so that in the PC side that the Default device of recording among the PC is changed and is USB audio frequency apparatus (step 43).Particularly, the user selects " sound and audio frequency apparatus " option in control panel, in " sound and audio frequency apparatus " property box, select " audio frequency ", click " senior " on recording one hurdle, to eject the advanced audio property box, in drop-down menu, select the USB audio frequency apparatus, thereby make the Default device of recording among the PC be changed audio frequency apparatus into USB, like this, the audio file of the MIC typing by USB audio frequency apparatus (being mobile phone) will be transferred to the PC side by the USB path.Particularly, the analogue audio frequency file by the typing of MIC port in the mobile phone carries out analog to digital conversion by D/A converter, obtains pcm audio stream (step 44).This pcm audio stream is sent to USB module in this mobile phone according to usb protocol pack (step 45).The USB module that pcm audio stream after the packing is sent among this PC by the USB connecting line unpacks (step 46).Pcm audio stream after this unpacks is sent to the coding (step 47) that DSP module among this PC is carried out corresponding format.By above-mentioned steps, there is not microphone (MIC) and the PC that can not record can utilize the MIC port of mobile phone to record.
Pass through the inventive method, can utilize the transmission of synchronous transfer module realization PC and the voice data between the mobile phone of USB, PC that can not displaying audio file owing to there is not audio amplifier can pass through the mobile phone play audio file, mobile phone is equivalent to the audio amplifier of this PC, and the PC that does not have the MIC port can utilize the MIC of mobile phone to record, mobile phone is equivalent to the MIC of this PC, thereby has expanded the function of PC.And, because the present invention does not make any change to the hardware of PC or mobile phone, can utilize existing P C and mobile phone fully, only need the software of adversary's pusher side to upgrade, therefore greatly reduce cost.
Above-described embodiment only is used to illustrate technological thought of the present invention and characteristics, its purpose is to make those skilled in the art can understand content of the present invention and implements according to this, can not only limit claim of the present invention with present embodiment, be all equal variation or modifications of doing according to disclosed spirit, still drop in the claim of the present invention.
Claims (8)
1. carry out the method for audio data transmission between PC and the mobile phone, it is characterized in that, may further comprise the steps:
Audio file among the described PC is decoded as pcm audio stream;
The USB module that described pcm audio stream is sent among the described PC is packed according to usb protocol;
The USB module that pcm audio stream after the packing is sent in the described mobile phone unpacks;
The D/A converter that pcm audio stream after unpacking is sent in the described mobile phone carries out digital-to-analog conversion; And
Analog audio data after the conversion is amplified to the loudspeaker of described mobile phone and plays.
2. carry out the method for audio data transmission between PC as claimed in claim 1 and the mobile phone, it is characterized in that, pcm audio stream after the described packing is sent to described mobile phone by the USB interface of described PC and the USB interface of described mobile phone from described PC, and the USB interface of wherein said PC and the USB interface of described mobile phone connect by the USB connecting line.
3. carry out the method for audio data transmission between PC as claimed in claim 2 and the mobile phone, it is characterized in that, when described USB connecting line was connected to the USB interface of described mobile phone, the user interface of described mobile phone the USB choice box occurred and selects the USB audio frequency for the user.
4. carry out the method for audio data transmission between PC as claimed in claim 3 and the mobile phone, it is characterized in that, after described USB connecting line was connected to the USB interface of described PC, the user was arranged so that in described PC side the Default device of sound playing among the described PC is changed the audio frequency apparatus into USB.
5. carry out the method for audio data transmission between PC and the mobile phone, it is characterized in that, may further comprise the steps:
MIC port typing MIC audio file by described mobile phone end;
The A/D converter that described MIC audio file is sent in the described mobile phone carries out analog to digital conversion, obtains pcm audio stream;
The USB module that described pcm audio stream is sent in the described mobile phone is packed according to usb protocol;
The USB module that pcm audio stream after the packing is sent among the described PC unpacks; And
Pcm audio stream after described the unpacking is sent to the coding that DSP module among the described PC is carried out corresponding format.
6. carry out the method for audio data transmission between PC as claimed in claim 5 and the mobile phone, it is characterized in that, pcm audio stream after the described packing is sent to described mobile phone by the USB interface of described PC and the USB interface of described mobile phone from described PC, and the USB interface of wherein said PC and the USB interface of described mobile phone connect by the USB connecting line.
7. carry out the method for audio data transmission between PC as claimed in claim 6 and the mobile phone, it is characterized in that, when described USB connecting line was connected to the USB interface of described mobile phone, the user interface of described mobile phone the USB choice box occurred and selects the USB audio frequency for the user.
8. carry out the method for audio data transmission between PC as claimed in claim 7 and the mobile phone, it is characterized in that, after described USB connecting line was connected to the USB interface of described PC, the user was arranged so that in described PC side the Default device of recording among the described PC is changed the audio frequency apparatus into USB.
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| CN2010105079810A CN102063908A (en) | 2010-10-15 | 2010-10-15 | Audio data transmission method between PC and mobile phone |
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| CN2010105079810A CN102063908A (en) | 2010-10-15 | 2010-10-15 | Audio data transmission method between PC and mobile phone |
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| CN103905834A (en) * | 2014-03-13 | 2014-07-02 | 深圳创维－Rgb电子有限公司 | Voice data coded format conversion method and device |
| CN103929544A (en) * | 2014-04-30 | 2014-07-16 | 广东欧珀移动通信有限公司 | Method and system for realizing automatic sound recording of pc-side and mobile terminal |
| CN108206886A (en) * | 2017-09-08 | 2018-06-26 | 中兴通讯股份有限公司 | A kind of audio frequency playing method and device and terminal |
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Application publication date: 20110518 |