CN101004934A - Sound source playing back system, and operation method - Google Patents
Sound source playing back system, and operation method Download PDFInfo
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- CN101004934A CN101004934A CN200610023354.3A CN200610023354A CN101004934A CN 101004934 A CN101004934 A CN 101004934A CN 200610023354 A CN200610023354 A CN 200610023354A CN 101004934 A CN101004934 A CN 101004934A
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- 230000005236 sound signal Effects 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 12
- 238000010295 mobile communication Methods 0.000 claims abstract description 11
- 230000006870 function Effects 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000003139 buffering effect Effects 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 3
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- 230000001360 synchronised effect Effects 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
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Abstract
A sound source playing system radio mobile communication module for transmitting specified sound source in radio mode, storing module for storing sound source data in multiple mode, microcomputer for controlling sound source playing unit completely, loudspeaker, microphone, control unit for completely controlling radio receiving unit, radio mobile communication module for processing audio signal and signal dubbing unit for carrying out dubbing of user sound in specified sound source.
Description
Technical field
The present invention relates to a kind of source of sound playing device, particularly a kind of sound source playing back system and method for operating thereof of in the MP3 sound signal, mixing user voice.
Background technology
The MP3 player is behind a kind of music file of downloading MP3 format from computing machine or mobile phone it to be stored, and reads the music file of storage according to user's selection, plays the voice playing machine that outwards export by the earphone that is connected with player the back.Present this device is comparatively universal on the market.
MP3 is that ratio of compression is a kind of form of 12: 1 audio digital signals decoding, and its size is 1/10th of a general wav file, but it has quality (16bit, 44.1kHz) audio file formats of CD music again.Because it has remarkable quality and compressibility, based on the Internet of TCP, is widely used in aspects such as A0D and network FM broadcasting.
Recently, in-plant wire communication or be suggested according to Bluetooth protocol (blue tooth protocol) with the notion of the wireless near field communication of infrared communication.
Bluetooth technology is to utilize the wireless communication frequency that does not need physical connection between e-machine, a kind of technology of high speed transmission data.
In this Bluetooth technology standard, the data rate of bluetooth 1.0 is 1Mbps, and transmission range is a 10-100 rice, therefore, if compare with utilizing ultrared IrDA, its communication distance is than length and owing to utilizing the wireless frequency of 2.4GHz, even there is barrier also can realize proper communication.
In addition, in the Bluetooth technology, 2.7 volts of its voltages, power are below 100mW, otherwise the power of IrDA is 150mW, and therefore, under the certain situation of battery capacity, power saving is exactly a kind of very outstanding advantage.
Just because of the exploitation of this Bluetooth technology, using the MP3 player to come to replace wired earphone with radio receiver under the situation of music appreciating.
Promptly, also can enjoy the music of graceful MP3 player plays even without wired earphone by utilizing the radio receiver of bluetooth approach.
By having the microphone of radio receiver, this technology of dubbing that the sound of oneself is coupled in the music of exporting on the MP3 player also is developed at present.
But under the prior art situation, the user who utilizes bluetooth approach is when dubbing, do not consider from music time of occurrence when receiving trap import of MP3 player output postpone (timedelay) and the user voice signal exported from microphone with receiving trap under the situation of the time delay when the MP3 player is imported, music and user's sound just can not be synchronous.
Be the user when dubbing, the microphone signal of radio receiver is when the MP3 player is imported, because to the music of radio receiver output with by the asynchronism(-nization) of microphone input delay.In this case, owing to do not consider the problem that time delay is different, background music and the nonsynchronous problem of user voice will appear when dubbing.
Summary of the invention
For overcoming the above problems, the invention provides a kind of sound source playing back system and method for operating thereof with the function of dubbing.The present invention is to receive and to send the source of sound playing device (for example MP3 player) and the radio receiver of data according to the wireless mobile communications similar to bluetooth approach, utilizing above communication to carry out user voice when dubbing, consider that by the sound of exporting in the source of sound playing device user voice signal of time delay (time delay) when receiving trap is imported and/or the output of the microphone from the receiving trap is in the time delay when the source of sound receiving trap is imported, from the user voice of microphone output when being input to the source of sound playing device, can cooperatively interact and realize dubbing synchronously, and user's sound and background music are synchronous.
To achieve these goals, the sound source playing back system with the function of dubbing of the present invention comprises following components: the wireless mobile communications module that transmits wirelessly at the regulation source of sound of radio receiver and source of sound playing device stored; Storage is the memory module of the sound source data of input in many ways; Control the microcomputer of source of sound playing device totally; Input is from the sound signal of source of sound playing device transmission and to its wireless mobile communications module of handling; For making the user hear the loudspeaker of sound signal to its output; Import the microphone of user voice by the music of loudspeaker and cooperation broadcast; Control the control part of radio receiver totally; In sound play device, the music that the microphone by radio receiver is play radio receiver is as accompaniment music, thereby the signal that user's sound is dubbed in the source of sound of regulation is dubbed portion.
Therefore, dub with the source of sound of user voice and above regulation and to be the basis, the sound that makes the user is carried out simultaneously and is dubbed function to the moment of source of sound playing device input.
In addition, memory module comprises: the first memory of the music that storage is downloaded with multiple form from the outside; For the source of sound of realizing making regulation with the dubbing of the corresponding user voice of above regulation source of sound, to the memory buffer of storing temporarily from the regulation source of sound of first memory output.
More than Gui Ding source of sound if export, just when radio receiver transmits, also carries out buffering course according to user's selection simultaneously in memory buffer in first memory.
In addition, the method for operating with sound source playing back system of the function of dubbing of the present invention comprises following several stages: the stage of selecting the regulation source of sound in the source of sound of the first memory stored of source of sound playing device; The regulation source of sound of selecting is according to the stage of bluetooth approach process signal Processing to the receiving trap transmission; Select source of sound when radio receiver transmits, on memory buffer, carrying out the stage of buffering course; In radio receiver, the source of sound that receives is carried out signal Processing and it is transformed into and the initial corresponding sound signal of selecting of regulation source of sound, and to stage of loudspeaker output; By the microphone on the radio receiver, more than be input to loudspeaker music music as a setting, import stage of user's sound simultaneously; The user voice of input is according to bluetooth approach, through the stage of signal Processing to the transmission of source of sound playing device; At last in the moment of user voice, user voice is coupled to stage in the above source of sound to the input of source of sound playing device.
When user voice is dubbed, consider that by the sound of exporting in the source of sound playing device user voice signal of time delay (time delay) when receiving trap is imported and/or the output of the microphone from the receiving trap is in the time delay when the source of sound receiving trap is imported, when being input to the source of sound playing device, just can cooperate source of sound to realize dubbing synchronously at the user voice of exporting from microphone.
According to the present invention, user's sound can be dubbed with background music exactly synchronously, therefore more can realize the function of singing and accompanying accurately, simply.
Description of drawings
Fig. 1 is the calcspar of the sound source playing back system with the function of dubbing of the embodiment of the invention.
Fig. 2 is the flow chart of the sound source playing back system with the function of dubbing of the embodiment of the invention.
Accompanying drawing major part symbol description
100:MP3 player 110,210: bluetooth module
120: microcomputer 130: memory module
132: first memory 134: memory buffer
140: signal is dubbed portion 200: radio receiver
220: loudspeaker 230: microphone
240: control part
Embodiment
Below with reference to accompanying drawings embodiments of the invention are elaborated.
Fig. 1 is the calcspar of the sound source playing back system with the function of dubbing of the embodiment of the invention.
Under situation as shown in Figure 1, the source of sound playing device is that example describes with the bluetooth module with MP3 player, wireless mobile communications module, but because it is one of them embodiment, is not must be limited in the scope of this kind pattern therefore.
The embodiments of the invention conduct comprises the invention by the radio receiver of the MP3 player of foundation bluetooth approach realization wireless data communications, radio receiver transmits user's sound by the microphone on the radio receiver with the wireless transmissioning mode handle to the MP3 player, with realization accompaniment effect, and realize dubbing function in view of the above.
With reference to Fig. 1 the formation and the operation of the MP3 player system with the function of dubbing of the embodiment of the invention are described.
At this moment, dub with user voice and regulation source of sound and to be the basis, when cooperating user voice to be input on the MP3 player, carry out and dub function.User's sound can with the combination and synchronously exactly of the background music of relevant source of sound, dub the same period realizing.
Therefore, user voice is in the moment from MP3 player input, the time delay (time delay) of the music of adjusting 100 outputs of MP3 player exactly during from receiving trap 200 inputs and the time delay of user voice signal when 100 inputs of MP3 player of the microphone output from the receiving trap 200.
More than Gui Ding source of sound if export, just when radio receiver 200 transmits, is also carrying out buffering course according to user's selection simultaneously in memory buffer 134 in first memory 132.
Otherwise comprise according to radio receiver 200 of the present invention: input is from the sound signal of MP3 player transmission and to its bluetooth module of handling 210; Above audio signal output and loudspeaker 220 that the user can be heard; Cooperation by loudspeaker plays music and import the microphone 230 of user voice; Control the control part 240 of radio receiver totally.
Therefore, above radio receiver is wireless head-band receiver-transmitter, wireless headset, wireless head-band receiver etc., and loudspeaker can be the loudspeaker in wireless head-band receiver-transmitter, wireless headset, the wireless head-band receiver.
Carry out under the sending and receiving data conditions with wireless in the foundation bluetooth approach, can produce the regular hour during in transceive data 200 of MP3 player 100 and radio receivers postpones, the present invention overcomes the user to dub the time delay problem of generation, considering from the time delay (time delay) of music when receiving trap is imported of MP3 player output and the time delay of user voice signal when the MP3 player is imported of exporting from the microphone of receiving trap, they are adjusted, user voice from microphone output will carry out when the MP3 player is imported synchronously like this, with the effect that realizes dubbing synchronously.
Fig. 2 is the process flow diagram of method of operating of the sound source playing back system with the function of dubbing of the embodiment of the invention.
Under the situation of as shown in Figure 2 embodiment, the source of sound playing device is an example with the MP3 player, and the wireless mobile communications module is example with the bluetooth module, but this one of them example only, this is not only limited to use this two kinds of devices.
See figures.1.and.2, the method for operating of the MP3 player system with the function of dubbing of the embodiment of the invention is described.
At first, in the multiple MP3 music of first memory 132 stored, select the music (ST20) of appointment by the order input part of MP3 player 100.
That is, in the various music of storing in the MP3 player, the user selects by the order input part according to the personal like.
Then, the specific source of sound of more than selecting transmits (ST21) through signal Processing to radio receiver 200 according to bluetooth approach.
That is,, it is transformed into the bluetooth packed data, transmits to radio receiver with the RF signal through tuning (modulation) through the source of sound of bluetooth compress technique conversion according to bluetooth module 110 for the regulation source of sound that makes above selection transmits to wireless device.
In situation of the present invention, more than the source of sound of Xuan Zeing is carried out buffering course when radio receiver transmits on memory buffer 134.When user voice is dubbed, synchronous with sound and the above source of sound of guaranteeing the user.
The source of sound of 200 pairs of receptions of radio receiver carries out signal Processing, it is become and the initial corresponding sound signal of selecting of MP3 music, and outwards export (ST22) by loudspeaker 220.
Promptly, the sound source data that receives the compression transmission carries out demodulation (demodulation) and decompression through radio receiver bluetooth module 210 and control part 240 to it, and the corresponding sound signal of MP3 music that it is become and selects at first, outwards export by loudspeaker 220 simultaneously.The user just can enjoy the music that oneself is selected like this.
In the decompression process of above radio receiver 200, can produce the regular hour postpones, promptly the user select MP3 player 100 stored regulation source of sound the moment and to these sources of sound finally the loudspeaker 220 by radio receiver outwards can to produce the regular hour between moment of output poor.
Below the loudspeaker by radio receiver 220 is play the music that users select, simultaneously its music as a setting; By the 230 input users' of the microphone in the radio receiver sound, to dub (ST23).
More than Shu Ru user voice is the bluetooth approach that illustrates according to before, through transmitting (ST24) to MP3 player 100 after the signal Processing.
In this case, owing to must compress processes such as transmission and compression releasing to user's sound, the regular hour delay will take place in user's sound when the signal that is input to the MP3 player is dubbed portion 140.
The present invention overcomes above problem, and it is whole when signal is dubbed portion's 140 inputs it to be mediated at last at user voice, it is dubbed realize synchronously.
If promptly user voice is dubbed the moment of portion 140 input at last to the signal of MP3 player, just interrupt the buffering course that carries out in the memory buffer 134, in the music normal play of selecting, dub (ST25) user voice and above music.
Dub process more particularly according to signal of the present invention, regulation source of sound for the selection of explanation before making transmits to radio receiver 200 exactly, when transmitting with the conversion of bluetooth packed data according to bluetooth module 110, the source of sound of above regulation is stored in the memory buffer 134 temporarily, to carry out buffering course, be user voice is in the end dubbed the moment from portion's 140 inputs to signal, the source of sound of stipulating is passed through buffering course respectively.
If user voice dubs portion 140 inputs to last signal, meanwhile stop buffering course, in above source of sound normal play, user's sound and above source of sound are dubbed synchronously.
In the embodiment of explanation before, dub synchronously with source of sound and user voice and to be the basis, though illustrate synchronously in the initial broadcast moment of dubbing constantly with source of sound, it is not only limited to this kind pattern.
Be that the present invention considers when the user dubs at the user voice signal of exporting in the time delay when receiving trap import with from the microphone of receiving trap from the source of sound of MP3 player output in the time delay when the MP3 player is imported, make from the user voice of microphone output and import synchronously, dub function with execution to the MP3 player.
Claims (11)
1, a kind of sound source playing back system is characterized in that, comprises following components:
The wireless mobile communications module that transmits wirelessly at the regulation source of sound of radio receiver and source of sound playing device stored;
The memory module of the sound source data of storage input in many ways;
Control the microcomputer of source of sound playing device totally;
Input is from the sound signal of source of sound playing device transmission and to its wireless mobile communications module of handling;
For making the user hear the loudspeaker of sound signal to its output;
Import the microphone of user voice by the music of loudspeaker and cooperation broadcast;
Control the control part of radio receiver totally;
In the source of sound playing device, the music that the microphone by radio receiver is play radio receiver is as accompaniment music, and the signal that user's sound is dubbed in the source of sound of regulation is dubbed portion.
2, sound source playing back system as claimed in claim 1 is characterized in that, dubs with the source of sound of user voice and described regulation to be the basis, and the sound that makes the user is carried out simultaneously and dubbed function to the moment of source of sound playing device input.
3, sound source playing back system as claimed in claim 1 is characterized in that, memory module comprises: the first memory of the music that storage is downloaded with multiple form from the outside; With for the source of sound of realizing making regulation with the dubbing of the corresponding user voice of described regulation source of sound, to the memory buffer of storing temporarily from the regulation source of sound of first memory output.
4, sound source playing back system as claimed in claim 3 is characterized in that, the source of sound of described regulation if export, just when radio receiver transmits, also carries out buffering course according to user's selection in memory buffer in first memory.
5, sound source playing back system as claimed in claim 1, it is characterized in that the source of sound playing device is formed by the LCD that comes contents processings such as display text, numeral or chart according to the microcomputer control signal with to the order input part of microcomputer input user function setting command.
6, a kind of method of operating of sound source playing back system is characterized in that, comprises following several stages:
In the source of sound of the first memory stored of source of sound playing device, select the stage of regulation source of sound;
The regulation source of sound of selecting is passed through the stage of signal Processing to the receiving trap transmission according to bluetooth approach;
Selecting source of sound when radio receiver transmits, on memory buffer, carry out the stage of buffering course;
In radio receiver, the source of sound that receives is carried out signal Processing and it is transformed into and the initial corresponding sound signal of selecting of regulation source of sound, and to stage of loudspeaker output;
By the microphone on the radio receiver, more than be input to loudspeaker music stage of input user voice music time the as a setting;
The user voice of input is by bluetooth approach, through the stage of signal Processing to the transmission of source of sound playing device;
At last to the moment of source of sound playing device input, user voice just is fitted to the stage in the above source of sound at user voice.
7, the method for operating of sound source playing back system as claimed in claim 6, it is characterized in that, according to the packed data conversion of wireless mobile communications module to regulation, above-mentioned sound to the packed data conversion of stipulating transmits to radio receiver through tuning and with the RF signal the source of sound of the regulation of selecting.
8, the method for operating of sound source playing back system as claimed in claim 6, it is characterized in that, signal Processing on the radio receiver comprises, the wireless mobile communications module and the control part that receive the radio receiver that compresses the sound source data that transmits carry out demodulation, decompress(ion) to it, and it is transformed into and the initial stage of selecting the corresponding sound signal of source of sound.
9, the method for operating of sound source playing back system as claimed in claim 6 is characterized in that, the user voice of importing to microphone transmits and remove the process of compressing through overcompression, and the signal portion of dubbing to the source of sound playing device imports at last.
10, the method for operating of sound source playing back system as claimed in claim 8 or 9 is characterized in that, can postpone by generation time in the described releasing compression process.
11, sound source playing back system as claimed in claim 1, it is characterized in that, when dubbing, the user considers at the user voice signal of exporting in the time delay when receiving trap import with from the microphone of receiving trap from the music of source of sound playing device output in the time delay when the source of sound playing device is imported, make from the user voice and the source of sound playing device of microphone output synchronously, dub function with execution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610023354.3A CN101004934A (en) | 2006-01-16 | 2006-01-16 | Sound source playing back system, and operation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610023354.3A CN101004934A (en) | 2006-01-16 | 2006-01-16 | Sound source playing back system, and operation method |
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| CN101004934A true CN101004934A (en) | 2007-07-25 |
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| CN200610023354.3A Pending CN101004934A (en) | 2006-01-16 | 2006-01-16 | Sound source playing back system, and operation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102696240A (en) * | 2009-09-10 | 2012-09-26 | 美国高思公司 | Sync Wireless Headphones |
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2006
- 2006-01-16 CN CN200610023354.3A patent/CN101004934A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102696240A (en) * | 2009-09-10 | 2012-09-26 | 美国高思公司 | Sync Wireless Headphones |
| CN102696240B (en) * | 2009-09-10 | 2016-02-24 | 美国高思公司 | Sync Wireless Headphones |
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