CN101166317A - A method and corresponding device for providing mobile equipment with sound mixing function - Google Patents
A method and corresponding device for providing mobile equipment with sound mixing function Download PDFInfo
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Abstract
The method includes step for inputting multiple sound signals (MSS) respectively, and step of mixing process for MSS to generate mixed signal. The method also includes step for carrying out power adjustment for MSS respectively, and step for carrying out power adjustment for the mixed signal. The method can carry out mixing analogous sounds and digit sounds. Moreover, the input signal can be analogous or digit signal; and the digit signal can be coded digit signal. The sound signal include voice, signal of accompaniment sound; and at least one signal from MSS is sound signal stored in mobile device, external input signal, or collected external sound signal. The invention also discloses device for sound mixing function, which can mix analogous sounds and digit sounds for mobile device. The invention also discloses a mobile device possessing function for mixing sounds. The said mobile device possesses function for mixing sounds for example real realized Kara-Ok function.
Description
Technical field
The present invention relates to mobile device, mobile phone for example especially provides the method and the corresponding device thereof of sound mixing function for mobile device, and the present invention simultaneously also the invention still further relates to the mobile device that possesses sound mixing function.
Background technology
At present, people bring into use various mobile devices more, for example mobile phone, PDA(Personal Digital Assistant), portable media player (PMP), multimedia video central platform (PMC) product, MP4 player, palmtop PC etc.These mobile devices, reason such as easy to carry owing to it, that stand-by time is long, and adapted to numerous personages' need of work.Especially mobile phone becomes the communication tool that nearly all personnel generally use especially.
When using these mobile devices, on the one hand, numerous businessmans wishes and can improve own competitiveness of product by the function that increases mobile device that on the other hand, the user wishes to a certain extent that also various mobile devices can provide the multiple function that is integrated.Thus, cause the function of various mobile devices more and more, for example can play MP3, can make a video recording, can mobile Internet access, can TV reception or the like.The object that the function that similar mobile device is numerous, dazzling appearance have especially become the young man to pursue.
White collar personage for youth, majority like going at night or weekend the big sing karaoke of KTV, but be difficult to KTV one exhibition singing voice under many circumstances, for example the time of lunch break at noon too short and can't remove KTV, for example number seldom is unwilling to KTV or the like situation again.Because the part mobile device, for example mobile phone can be play MP3, so, like the man who loves to singing scholar also can play MP3 and with singing, but the shortcoming of singing like this is to have the original singer, so can not find the sensation of Karaoke.Thus, part producer has released the mobile phone that possesses Karaoke.For example, the CS6 product of Xiaxin company, this product not only have the functions such as the tinkle of bells of MMS multimedia message, WAP2.0, FM broadcast receiver, 40 chords, and possess Kara OK function, and it supports the wireless downloading music file that the accompaniment music of 40 chords also is provided; Again for example, the carry-on sing karaoke mobile phone M60 and the Z2100 of company of Haier product; Again for example, the CDMA mobile phone of the V730 model of Motorola Inc. has 16 chord rings, have color/graphics, the user can download Kara OK songs from the website of Motorola and play at mobile phone, and mobile phone screen can be got captions with music, and the user can be with singing.
But the shortcoming that these products exist is that although there is not original singer's sound, and the user also can be with singing, but user's song (voice) does not enter in these mobile devices, the user can not play with accompaniment music, so still can not find the sensation of Karaoke.
Equally, although exist some patent documents that the Kara OK function of mobile phone is described, for example application number is that " CN200510011146.7 ", denomination of invention are the Chinese patent application of " a kind of method that has the mobile phone of Caraok device and implement Karaoke ", but these files still can't really be realized above-mentioned Kara OK function.
Therefore, these products also are not the mobile devices that possesses Kara OK function truly.
After all, existing product or document all do not have to solve the problem of accompany sound and voice being carried out audio mixing on mobile device.
Summary of the invention
For this reason, the purpose of this invention is to provide a kind of technology that sound mixing function can be provided in mobile device, to overcome above-mentioned defective of the prior art.
According to an aspect of the present invention, provide a kind of, comprised the steps: that a. imports a plurality of voice signals respectively for mobile device provides the method for sound mixing function; And b. carries out audio mixing with described a plurality of voice signals and handles, to generate audio signal.
Said method also comprises the steps: described a plurality of voice signals are carried out the power adjustment respectively, and exports a plurality of through the adjusted voice signal of overpower; Wherein, described step b is: carry out the audio mixing processing with described through the adjusted voice signal of overpower, to generate audio signal.
Said method comprises that also step: c. exports to a loudspeaker arrangement with described audio signal.
Before above-mentioned steps c, also comprise the steps: described audio signal is carried out the power adjustment; Wherein, described step c is: export to a loudspeaker arrangement with described through the adjusted audio signal of overpower.
In said method, described a plurality of voice signals are analog signal, and wherein, described step b is: described a plurality of voice signals are simulated audio mixing handle, to generate audio signal.
In said method, at least one voice signal is a digital signal in described a plurality of voice signals, and wherein, described step b is further comprising the steps of: b1. is converted to analog signal with described at least one voice signal of digital signal; B2. described at least one voice signal and other voice signals that was analog signal originally that is converted to analog signal simulated the audio mixing processing, to generate audio signal.
In said method, at least one voice signal is a coded digital signal in described a plurality of voice signals, and described step b1 is further comprising the steps of: carry out decoding processing with described at least one voice signal of coded digital signal; Described decoded at least one voice signal is converted to analog signal.
In said method, described a plurality of voice signals are digital signal, and wherein, described step b is: described a plurality of voice signals are carried out digital audio mixing handle, to generate audio signal.
In said method, at least one voice signal is a coded digital signal in described a plurality of voice signals, and described step b is further comprising the steps of: carry out decoding processing with described at least one voice signal of coded digital signal; With described decoded at least one voice signal and all the other described be not that the voice signal of coded digital signal carries out digital audio mixing and handles, to generate audio signal.
In said method, at least one voice signal is an analog signal in described a plurality of voice signals, and wherein, described step b is further comprising the steps of: i. is converted to digital signal with described at least one voice signal of analog signal; Ii. described at least one voice signal and other voice signals that was digital signal originally that is converted to digital signal carried out digital audio mixing processing, to generate audio signal.
In said method, at least one voice signal in described a plurality of voice signal except that described analog signal is a coded digital signal, and described step I i is further comprising the steps of: carry out decoding processing with described at least one voice signal of coded digital signal; To be converted at least one voice signal of digital signal, described decoded at least one voice signal and all the other described be not that the voice signal of coded digital signal carries out digital audio mixing and handles with described, to generate audio signal.
Accordingly, above-mentioned steps c is further comprising the steps of: described audio signal is converted to analog signal; The described audio signal that is converted to analog signal is exported to a loudspeaker arrangement.
Above-mentioned a plurality of voice signal comprises voice, accompaniment sound signals.
In above-mentioned a plurality of voice signal at least one is the voice signal that is stored in the described mobile device, the external voice signal that external input signal or this mobile device are gathered.
According to a further aspect of the invention, also provide a kind of for mobile device provides the device of sound mixing function, wherein, comprise: a plurality of input units, be used for importing a plurality of voice signals respectively, and device sound mixing, be used for described a plurality of voice signals are carried out audio mixing, to generate audio signal.
Said apparatus also comprises: at least one input signal power adjusting device, the voice signal that is used at least one described input unit is exported carries out the power adjustment, wherein, described device sound mixing carries out audio mixing to described through the adjusted voice signal of overpower with without the voice signal of overpower adjustment, to generate audio signal.
Said apparatus also comprises: loudspeaker arrangement is used to receive described audio signal, to play this audio signal.
Said apparatus also comprises: the output signal power adjusting device, be used for described audio signal is carried out the power adjustment, and wherein, described loudspeaker arrangement receives described through the adjusted audio signal of overpower, and is described through the adjusted audio signal of overpower to play.
Above-mentioned device sound mixing can be the simulation device sound mixing, is used for that described a plurality of voice signals are simulated audio mixing and handles, and to generate audio signal, wherein, described a plurality of input units are imported a plurality of analoging sound signals respectively.
Said apparatus also comprises at least one D/A conversion device, be used at least one described input unit input is converted to analog signal for the voice signal of digital signal, wherein, described simulation device sound mixing is simulated the audio mixing processing with described at least one voice signal and other voice signals that was analog signal originally that is converted to analog signal, to generate audio signal.
Said apparatus also comprises at least one decoding device, is used for the coded digital signal of at least one described input unit input is carried out decoding processing, and wherein, described D/A conversion device is converted to analog signal with decoded at least one voice signal.
Above-mentioned device sound mixing can also be digital device sound mixing, is used for that described a plurality of voice signals are carried out digital audio mixing and handles, and to generate audio signal, wherein, described a plurality of input units are imported a plurality of digital audio signals respectively.
Said apparatus also comprises at least one decoding device, be used for the coded digital signal of at least one described input unit input is carried out decoding processing, wherein, described digital device sound mixing with described decoded at least one voice signal and all the other described be not that the voice signal of coded digital signal carries out digital audio mixing and handles, to generate audio signal.
Above-mentioned device sound mixing can be digital device sound mixing, described a plurality of voice signals are carried out digital audio mixing to be handled, to generate audio signal, and also comprise at least one analog/digital conversion device, be used at least one described input unit input is converted to digital signal for the voice signal of analog signal, wherein, described digital device sound mixing carries out digital audio mixing processing with described at least one voice signal and other voice signals that was digital signal originally that is converted to digital signal, to generate audio signal.
Said apparatus also comprises at least one decoding device, be used for the coded digital signal of at least one described input unit input is carried out decoding processing, wherein, to be converted at least one voice signal of digital signal, described decoded at least one voice signal and all the other described be not that the voice signal of coded digital signal carries out digital audio mixing and handles to described digital device sound mixing with described, to generate audio signal.
Said apparatus also comprises D/A conversion device, be used for audio signal described and that be generated is converted to analog signal, and the audio signal that will be converted to analog signal exports described loudspeaker arrangement to.
Said apparatus also comprises: at least one storage device, be used for the stored sound signal file, and wherein the described interior voice signal file of described storage device that is stored in of at least one described input unit control is as its voice signal of exporting.
Said apparatus also comprises: the voice signal document input apparatus is used for the audio files of outside is inputed to described storage device.
Above-mentioned at least one described input unit also comprises: at least one storage device, be used for the stored sound signal file, and the described interior voice signal file of described storage device that is stored in of described input unit control is as its voice signal of exporting.
Above-mentioned at least one described input unit also comprises: the voice signal document input apparatus is used for the audio files of outside is imported described storage device.
Above-mentioned at least one described input unit also comprises: sound collection equipment, be used to gather the external voice signal, wherein, the described voice signal that described external voice signal is exported as at least one described input unit.Described sound collection equipment is the microphone in this mobile device.Described sound collection equipment also can be an external equipment.
Above-mentioned voice signal comprises voice, accompaniment sound signals.
The equipment of raising one's voice of former existence is same equipment in described loudspeaker arrangement and the described mobile device.
According to another aspect of the present invention, also provide a kind of mobile device that possesses sound mixing function, it is characterized in that, comprised the above-mentioned device that sound mixing function is provided for mobile device.
Above-mentioned mobile device also comprises: switching device is used for opening or cutting out described device.
Above-mentioned mobile device also comprises at least one input signal power control button, is connected with described at least one input power adjusting device, and the voice signal that is used at least one described input unit is exported carries out the power adjustment.
Above-mentioned mobile device also comprises the output signal power control button, is connected with described output signal power adjusting device, is used for described audio signal is carried out the power adjustment.
Above-mentioned mobile device also comprises: the audio mixing control device, be used to control the audio mixing process, it comprises control module and interactive module, and described control module is used to control described device, and described interactive module is used for interactive interface being provided and user's selection being sent to described control module to the user.
Above-mentioned mobile device is any in mobile phone, personal digital assistant, portable media player, multimedia video central platform product, MP4 player or the handheld game machine.
Compared with prior art, advantage of the present invention is at least to mobile device provides sound mixing function, thereby can realizes Kara OK function truly at least on mobile device.Moreover, method and apparatus provided by the present invention can also provide simulation sound mixing function and digital sound mixing function dual mode, can make things convenient for the design of various mobile devices to need and the use needs.
Sound mixing function provided by the invention can carry out audio mixing at two or more voice signals, and can carry out audio mixing at various voice signals and handle, for example voice or other audio signals (for example accompaniment sound signals or background sound signal etc.).
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described:
Fig. 1 is the flow chart that carries out the method for audio mixing in mobile device according to first embodiment of the invention;
Fig. 2 is the flow chart that carries out the method for audio mixing in mobile device according to second embodiment of the invention;
Fig. 3 is the structural representation that is used for the device sound mixing of audio mixing in mobile device according to an embodiment of the invention;
Fig. 4 is the structural representation according to the simulation device sound mixing of first embodiment of the invention;
Fig. 5 is the structural representation of digital device sound mixing according to a second embodiment of the present invention;
Fig. 6 be a third embodiment in accordance with the invention provide the structural representation of the device of sound mixing function for mobile device; And
Fig. 7 is the structural representation that is used for the device that sound mixing function is provided in the mobile phone of a fourth embodiment in accordance with the invention.
Embodiment
With reference to figure 1, it has shown the flow process of carrying out the method for audio mixing in mobile device according to the first embodiment of the present invention.This is one and simulates the process that audio mixing is handled.At first, in step S101, import a plurality of voice signals; Then, in step S102, above-mentioned each voice signal is judged, judged whether it is digital signal; If not digital signal, then directly enter step S106, if wherein any voice signal is a digital signal, then enter step S103, judge whether this digital signal is coded digital signal, if coded digital signal, then enter step S104, it is carried out encoding process; Enter step S105 again, otherwise, direct execution in step S105; In step S105, each above-mentioned digital signal (comprise the coded digital signal through decoding, comprising originally is not the digital signal of coded digital signal yet) is carried out the digital-to-analog conversion respectively, obtain corresponding analog signal; Enter step S106 then, above-mentioned analog signal (comprise and judge through determining step S102 and be the signal of analog signal originally, and through step S105 digital signal is converted to signal after the analog signal) is simulated the audio mixing processing; Enter step S107 again, with the output port output of described audio signal (signal behind the audio mixing) from device sound mixing
It will be appreciated by those skilled in the art that, in the present embodiment, in above-mentioned steps S101, described a plurality of voice signals are synchronous inputs, for example two voice signals through two independently input unit import synchronously, perhaps three voice signals are through the input synchronously respectively of three input units.Correspondingly, in above-mentioned steps S106,, and synchronously import device sound mixing again for the signal of analog signal originally and simulate the audio mixing processing through the signal of decoding processing and/or digital-to-analogue conversion processing.And it will be appreciated by those skilled in the art that, a plurality of voice signals of importing in other embodiment above-mentioned steps S101 also can be nonsynchronous, but like this, before step S106, must carry out Synchronization Control, so that can realize the effect of synchronous mixed audio to these a plurality of voice signals.
It will be appreciated by those skilled in the art that, when the arbitrary road in above-mentioned a plurality of voice signals is digital signal, these digital signals are likely through being stored on the memory device behind the coding, for example since the memory space of mobile device compare less, so must after overcompression, could store as much as possible digital signal.Therefore, when these encoded digital signals of input, must decode to it, so that decoded digital signal can be further processed.It will be appreciated by those skilled in the art that, in implementation procedure, exist diversified coding, decoding scheme available, but this is not emphasis argumentation of the present invention, for example MP3 music encoding scheme and decoding scheme accordingly, and corresponding decoding device, perhaps AAC music encoding scheme, AMR music encoding scheme, OGG music encoding scheme etc. and decoding scheme, decoding device etc. accordingly, this is apparent to one skilled in the art, does not give unnecessary details at this.
With reference to figure 2, it has shown the flow process of carrying out the method for audio mixing in mobile device according to second embodiment of the invention.Similar with the described flow process of above-mentioned Fig. 1, but be the flow process of carrying out the embodiment of digital audio mixing.At first, in step S201, import a plurality of voice signals; Then, in step S202, above-mentioned each voice signal is judged, judged whether it is analog signal; If not analog signal, execution in step S203 then, if wherein any voice signal is an analog signal, execution in step S205 then; In step S203, judge once more whether this voice signal is coded digital signal, if coded digital signal then carries out encoding process to it, i.e. step S204, execution in step S206 again, otherwise, direct execution in step S206;
In step S205, this analog signal or this a plurality of analog signals are carried out analog/digital conversion respectively, obtain digital signal corresponding, and then execution in step S206; In step S206, above-mentioned digital signal (is comprised through determining step S202 and judges the signal that has also carried out decoding processing originally for digital signal through step S204, also comprise through determining step S202 and judge originally for digital signal and do not carry out the signal of decoding processing, and judge signal after for analog signal and through step S205 analog signal conversion being digital signal originally through determining step S202 through step S204) carry out digital audio mixing and handle; Enter step S207 again, with the output port output of described audio signal (signal behind the audio mixing) from device sound mixing.
Because generally speaking, described signal in above-mentioned steps analog signal that S202 is judged as can be through coding, can import described digital device sound mixing so directly it is carried out analog/digital conversion, thereby in step S206, finish digital audio mixing process with other signal.
Although those skilled in the art will appreciate that signal will be that analog signal or digital signal are judged to the voice signal of being imported in the flow chart of above-mentioned Fig. 1, Fig. 2, in reality realizes, have certain variation.For example, generally speaking, in a definite device sound mixing, the function of described each input unit is definite, i.e. supplied with digital signal or input analog signal, and this is that needs according to specific implementation dispose definite equipment, for example digital signal input equipment or analog signal input equipment, therefore, above-mentioned flow chart only is to have shown main handling process of the present invention, can suitably change in specific implementation.
With reference to figure 3, it has described the structural representation of the device sound mixing that is used for audio mixing in mobile device of one embodiment of the present of invention.Wherein, a plurality of voice signals input to described device sound mixing 42 through input unit 41 respectively, and three voice signals are shown in the present example, but it will be appreciated by those skilled in the art that, the present invention goes for more voice signal, certainly, is equally applicable to two voice signals.Before the described device sound mixing 42 of input, each voice signal is controlled by an input signal power adjusting device 43 respectively, the voice signal that is used for corresponding input unit is exported carries out the power adjustment, for example can control the power of this voice signal, thereby make the power in its signal after audio mixing to be conditioned by this power adjustment.After above-mentioned a plurality of voice signal inputed to described device sound mixing 42 respectively, described device sound mixing 42 carries out audio mixing to these a plurality of voice signals to be handled, thereby obtains audio signal.This audio signal is output through the output 45 of described device sound mixing 42.Before exporting these audio signal to other equipment, audio signal is also controlled through an output signal power adjusting device 44, is used for this audio signal is carried out the power adjustment, for example controls the power of this signal.
Those skilled in the art will appreciate that the number of described input signal power adjusting device 43 can be adjusted in other examples similar to above-mentioned example.In the present example, each input unit 42 all correspondingly disposes an input signal power adjusting device 43, and in other examples, then can correspondingly dispose input signal power adjusting device 43 to part input unit 42 as required, for example those are not needed just can not dispose input signal power adjusting device 43 to what the power of the voice signal imported was adjusted, to this, those skilled in the art can select according to the needs of realizing, does not influence flesh and blood of the present invention.Similarly, in other examples, also can select whether to dispose described output signal power adjusting device 44.
Equally, those skilled in the art will appreciate that above-mentioned input signal power adjusting device 43, output signal power adjusting device 44 can realize by plurality of devices, for example can be an AGC device.
With reference to figure 4, it has described the structural representation according to the simulation device sound mixing of first embodiment of the invention.Different with above-mentioned example shown in Figure 3 is that this first embodiment provides a simulation device sound mixing.Wherein, first voice signal is through input unit 41 inputs, this signal is a digital signal, therefore, its input to described simulation device sound mixing 42 ' before passed through a D/A conversion device 46 and be converted into analog signal so that described simulation device sound mixing 42 ' can simulate audio mixing to this signal to handle.And above-mentioned first voice signal system is stored in the storage device 52, and the communication by input unit 41 and storage device 52 with its input to described simulation device sound mixing 42 '.Be similar to Fig. 3, before this first voice signal input, it carried out the power adjustment by an input signal power adjusting device 43.
With reference to figure 4, second voice signal equally through another input unit 41 input to described simulation device sound mixing 42 ', and be converted into analog signal through another D/A conversion device 46 equally, but this voice signal is a coded digital signal, so before carrying out the digital-to-analog conversion, also by a decoding device 47 it is decoded, decoded digital signal inputs to D/A conversion device 46 again and carries out the digital-to-analog conversion.And for this voice signal, then do not dispose input signal power adjusting device 43 it is carried out the power adjustment.
With reference to 4, the three voice signals of figure is analog signal, directly through another input unit 41 input to described simulation device sound mixing 42 '.Similarly, before the 3rd voice signal input, it is carried out the power adjustment by another input signal power adjusting device 43.
Those skilled in the art will appreciate that above-mentioned input unit 41 supplied with digital signal still import analog signal and can select according to different realization needs.For example, can be that each input unit 41 all is an analogue input unit, also can be that each input unit 41 all is a digital input unit, or the part be analogue input unit, the part be digital input unit, this does not influence flesh and blood of the present invention.
Again with reference to figure 4, it will be appreciated by those skilled in the art that, in the variation example of above-mentioned first embodiment, can also comprise a voice signal document input apparatus that adapts with above-mentioned storage device 52, it cooperates the voice signal file with the outside to input to described storage device 52, thereby makes these voice signal files can be stored in the described storage device 52.Those skilled in the art is appreciated that described voice signal document input apparatus and implements, do not give unnecessary details at this.
With reference to figure 5, it has described the structural representation of digital device sound mixing according to a second embodiment of the present invention.With the above-mentioned first embodiment main difference be that second embodiment provides the device that digital sound mixing function can be provided for mobile device.Correspondingly, device sound mixing wherein is digital device sound mixing 42 ".With reference to figure 5, first voice signal inputs to described digital device sound mixing 42 through an input unit 41 "; in the present embodiment; this first voice signal is an analog signal; so; " before through an analog/digital conversion device 46 ' be converted into digital signal, so that described digital device sound mixing 42 " can be handled the signal after the conversion to input to described digital device sound mixing 42 at it.Second voice signal inputs to described digital device sound mixing 42 through another input unit 41 "; in the present embodiment; this second voice signal is coded digital signal; so; input to described digital device sound mixing 42 at it " through a decoding device 47 it is decoded before, decoded digital signal inputs to described digital device sound mixing 42 again ".Similarly, input to described digital device sound mixing 42 again after the 3rd voice signal also decoded to it through another decoding device 47 ".
With reference to figure 5, wherein the 3rd sound signal storage in storage device 52 ' in, and through the described digital device sound mixing 42 of 41 pairs of these storage devices 52 of input unit ' input to after controlling ".With reference to figure 5, those skilled in the art will appreciate that described storage device 52 ' be the part of described input unit.Again with reference to figure 4, it will be appreciated by those skilled in the art that, described storage device 52 separates with described input unit 41, and promptly described storage device 52 is positioned at outside the device that sound mixing function is provided for mobile device provided by the present invention, for example in the mobile device at described device place.These two kinds of implementations do not influence flesh and blood of the present invention, and those skilled in the art can be selected to realize in the specific implementation process.For example, when considering that the external storage card by mobile device stores the tut signal file as storage device, then can take the mode of above-mentioned Fig. 4 to handle.
Again with reference to figure 5, it will be appreciated by those skilled in the art that, in the variation example of above-mentioned second embodiment, also can comprise a voice signal document input apparatus with above-mentioned storage device 52 ' adapt, those skilled in the art is appreciated that described voice signal document input apparatus and implements, do not give unnecessary details at this.
Again with reference to figure 5, because described device sound mixing is digital device sound mixing, and common loudspeaker arrangement is analogue means, therefore, in the present embodiment, in order to match with common loudspeaker arrangement, what above-mentioned second embodiment was provided can also comprise a D/A conversion device 53 for mobile device provides the device of digital sound mixing function, it is used for above-mentioned digital audio signal is converted to analog signal, and the audio signal that will be converted to analog signal is by above-mentioned output port 45 outputs, thereby can be by the speaker means plays that is connected with described output port 45.Certainly, it will be appreciated by those skilled in the art that, in the variation example of present embodiment, if the loudspeaker arrangement that is connected with described output port 45 can be play-overed digital audio signal (for example this loudspeaker arrangement is built-in with a D/A conversion device), then in such variation example, no longer need an above-mentioned D/A conversion device 53.
With reference to figure 6, what it had described a third embodiment in accordance with the invention provides the structural representation of the device of sound mixing function for mobile device.In the present embodiment, the described device of sound mixing function that provides is only handled two voice signals.Wherein, first voice signal be after gathering through sound collection equipment 48 again through an input unit 41 input to described simulation device sound mixing 42 ', this signal is an analog signal.Second voice signal is to be stored in the storage device 52, and through input unit 41 and this storage device 52 carry out inputing to after the communication described simulation device sound mixing 42 '.Second voice signal is coded digital signal, so decode through a decoding device 47 earlier, decoded digital signal is converted to analog signal through a D/A conversion device 46 again, this analog signal through an input signal power adjusting device 43 carry out inputing to after the power adjustment described simulation device sound mixing 42 ', and by this device sound mixing itself and described first voice signal are simulated audio mixing and handle.Handle audio signal that the back obtained and carry out after the power adjustment again exporting a loudspeaker arrangement 49 to, thereby audio signal is play by the output port 45 of device sound mixing through an output signal power adjusting device 44.
It will be appreciated by those skilled in the art that, although the above-mentioned device of sound mixing function that provides is only handled two voice signals, but in other similar embodiment, also can handle by a plurality of voice signals, for example can gather a plurality of voice signals of different user by a plurality of sound collection equipment 48 respectively, thereby realize a plurality of users' sound is handled together.
It will be appreciated by those skilled in the art that, above-mentioned various devices have multiple choices, for example described D/A conversion device 46 can be any digital to analog converter (Digital toAnalogue Converter), described analog/digital conversion device 46 ' and can be any analog to digital converter (Analog-to-Digital Converter); Described decoding device 47 can be the MP3 audio decoder, also can be AAC audio decoder, AMR audio decoder, OGG audio decoder, WMA audio decoder etc.; Described loudspeaker arrangement 49 can be a loud speaker, also can be earphone, headset, earplug etc.; Described sound collection equipment 48 can be microphone.Those skilled in the art can be different according to the selection of specific implementation equipment, this does not influence flesh and blood of the present invention.
With reference to figure 7, it has described the structural representation that is used for the device that sound mixing function is provided in the mobile phone of a fourth embodiment in accordance with the invention.Compare with above-mentioned Fig. 6, the 4th embodiment specifically is applied in the mobile phone, so done some adjustment according to the concrete condition of mobile phone.For example, serial data controller 50 shown in Fig. 7 and digital filter 51 are in order to realize that the communication between generation of decoding device and analogue audio frequency and the processing unit needs and the device of script existence in the mobile phone, so, in the present embodiment, used this two equipment.Again for example, described sound collection equipment 48 is exactly unborn microphone (microphone) in the mobile phone, uses it to carry out the collection of sound; Described loudspeaker arrangement 49 is exactly a unborn receiver in the mobile phone, uses it to carry out the broadcast of voice signal behind the audio mixing.Those skilled in the art will appreciate that wherein said decoding device 47 can be arm processor, MIPS processor etc., also can be other various dsp processors.
It will be appreciated by those skilled in the art that, in the specific implementation of above-mentioned Fig. 7, form pcm stream for digital signal through the decoding back by input unit 41 inputs, may pass through certain post-processing then, input in described serial data controller 50 and the digital filter 51 through the I2S interface again.Those skilled in the art also is appreciated that when two ways of digital signals is handled, the audio mixing that can be achieved equally by the way operation.
With reference to figure 7, it will be appreciated by those skilled in the art that, one at the foregoing description changes in the example, and above-mentioned pcm stream also can input in described serial data controller 50 and the digital filter 51 through AC ' 97 or other serial line interfaces, does not give unnecessary details at this.
Those skilled in the art will appreciate that above-mentioned the 4th embodiment can provide Kara OK function.For example, tut collecting device 48 is gathered voice, and input unit 41 is then imported accompaniment music, and this accompaniment music is stored in the described storage device 52 with the form of file.Like this, voice (song) and accompaniment music (perhaps being called background music) just can be realized Kara OK function truly through behind the audio mixing.
Those skilled in the art will appreciate that on above-mentioned basis embodiment illustrated in fig. 7, can also further realize other variations.For example, above-mentioned loudspeaker arrangement 49 can adopt an external earphone, those mobile phone earphone specials promptly commonly used in the market, and correspondingly, tut collecting device 48 can adopt the external microphone that has on this earphone.
Again with reference to figure 7, in the pairing mobile phone that possesses sound mixing function of above-mentioned the 4th embodiment, for the sound mixing function that is provided is provided better, thereby realize its various application better, for example sing Karaoke, can also on the basis of above-mentioned Fig. 7, do further to change by this mobile phone.Change in the example at one, described mobile phone also comprises an audio mixing control device (not shown), and it is used to control the audio mixing process.Those skilled in the art will appreciate that this audio mixing control device can realize with multiple mode, for example the form (for example, the user sends instruction by touch-screen, and the software on the backstage receives this instruction and correspondingly carried out) by software.Particularly, this audio mixing control device is installed in the described mobile phone, and provides perfect sound mixing function with the described device of sound mixing function that provides.When the user starts this audio mixing control device, it can carry out various mutual controls by the interactive interface that this audio mixing control device provides, for example open sound mixing function, thereby make a voice signal, for example accompaniment music begins to play, beat along with this accompaniment music, the user can pass through above-mentioned sound collection equipment, and for example microphone comes with singing, should will be carried out audio mixing with above-mentioned accompaniment music with the voice signal of singing, thereby realize Kara OK function.Again for example, the user can adjust the power of described accompaniment music by above-mentioned interactive interface, thereby makes the power of this accompaniment music coordinate mutually with user's song; Similarly, the user also can adjust the power of user's song.Simultaneously the user can also adjust the power of the described audio signal that goes out by above-mentioned interactive interface.
It will be appreciated by those skilled in the art that, in above-mentioned variation example, above-mentioned audio mixing control device comprises control module and interactive module at least, described control module is used to control the described device that sound mixing function is provided, and states interactive module and is used for interactive interface being provided and user's selection being sent to described control module to the user.
And change in example at another of above-mentioned the 4th embodiment shown in Figure 7, this mobile phone also comprises various control buttons except the above-mentioned device that sound mixing function is provided, switching device for example, be used to open or close the described device that sound mixing function is provided, this switching device is placed the position of " opening ", the then described device of sound mixing function that provides begins to voice signal of device sound mixing input, accompaniment music for example, simultaneously, the user can pass through sound collection equipment, and for example microphone comes with singing.Again for example, can also comprise one or more input signal power control switchs, and the output signal power control switch etc.Those skilled in the art will appreciate that above-mentioned control switch can use the existing button of mobile phone and realize, also can increase new button (for example increasing button) and be achieved in the side of mobile phone.For example, can be by the further communication of corresponding Control Software on these buttons and backstage, and finally realize control to described device sound mixing by Control Software; Again for example, also can realize control by the mode that these buttons are directly controlled relevant hardware to device sound mixing, the power connection that for example described switching device (button) is directly controlled described device sound mixing whether, for example described again input volume adjustment device (button) is the relevant input signal power adjusting device of control input device directly.The setting of these control switchs is appreciated that for a person skilled in the art and implements, and does not give unnecessary details at this.
More than specific embodiments of the invention are described.It will be appreciated that the present invention is not limited to above-mentioned specific implementations, those skilled in the art can make various distortion or modification within the scope of the appended claims.
Claims (39)
1. one kind for mobile device provides the method for sound mixing function, comprises the steps:
A. import a plurality of voice signals respectively; And
B. described a plurality of voice signals are carried out audio mixing and handle, to generate audio signal.
2. the method for claim 1, wherein also comprise the steps:
-described a plurality of voice signals are carried out the power adjustment respectively, and export a plurality of through the adjusted voice signal of overpower;
Wherein, described step b is:
Carry out the audio mixing processing with described through the adjusted voice signal of overpower, to generate audio signal.
3. method as claimed in claim 1 or 2, wherein, further comprising the steps of:
C. described audio signal is exported to a loudspeaker arrangement.
4. as each described method among the claim 1-3, wherein, before described step c, also comprise the steps:
-described audio signal is carried out the power adjustment;
Wherein, described step c is:
Export to a loudspeaker arrangement with described through the adjusted audio signal of overpower.
5. as each described method among the claim 1-4, wherein, described a plurality of voice signals are analog signal, and wherein, described step b is:
Described a plurality of voice signals are simulated audio mixing handle, to generate audio signal.
6. as each described method among the claim 1-4, wherein, at least one voice signal is a digital signal in described a plurality of voice signals, and wherein, described step b is further comprising the steps of:
B1. be converted to analog signal with described at least one voice signal of digital signal;
B2. described at least one voice signal and other voice signals that was analog signal originally that is converted to analog signal simulated the audio mixing processing, to generate audio signal.
7. method as claimed in claim 6, wherein, at least one voice signal is a coded digital signal in described a plurality of voice signals, described step b1 is further comprising the steps of:
-carry out decoding processing with described at least one voice signal of coded digital signal;
-described decoded at least one voice signal is converted to analog signal.
8. as each described method among the claim 1-4, wherein, described a plurality of voice signals are digital signal, and wherein, described step b is:
Described a plurality of voice signals are carried out digital audio mixing handle, to generate audio signal.
9. method as claimed in claim 8, wherein, at least one voice signal is a coded digital signal in described a plurality of voice signals, described step b is further comprising the steps of:
-carry out decoding processing with described at least one voice signal of coded digital signal;
-with described decoded at least one voice signal and all the other described be not that the voice signal of coded digital signal carries out digital audio mixing and handles, to generate audio signal.
10. as each described method among the claim 1-4, wherein, at least one voice signal is an analog signal in described a plurality of voice signals, and wherein, described step b is further comprising the steps of:
I. be converted to digital signal with described at least one voice signal of analog signal;
Ii. described at least one voice signal and other voice signals that was digital signal originally that is converted to digital signal carried out digital audio mixing processing, to generate audio signal.
11. method as claimed in claim 10, wherein, at least one voice signal in described a plurality of voice signals except that described analog signal is a coded digital signal, and described step I i is further comprising the steps of:
-carry out decoding processing with described at least one voice signal of coded digital signal;
-to be converted at least one voice signal of digital signal, described decoded at least one voice signal and all the other described be not that the voice signal of coded digital signal carries out digital audio mixing and handles with described, to generate audio signal.
12. as each described method among the claim 1-11, wherein, described a plurality of voice signals comprise voice, accompaniment sound signals.
13. as each described method among the claim 1-11, wherein, at least one in described a plurality of voice signals is the voice signal that is stored in the described mobile device, the external voice signal that external input signal or this mobile device are gathered.
14. one kind for mobile device provides the device of sound mixing function, wherein, comprising:
A plurality of input units are used for importing respectively a plurality of voice signals, and
Device sound mixing is used for described a plurality of voice signals are carried out audio mixing, to generate audio signal.
15. device as claimed in claim 14 wherein, also comprises:
At least one input signal power adjusting device, the voice signal that is used at least one described input unit is exported carries out the power adjustment, wherein, described device sound mixing carries out audio mixing to described through the adjusted voice signal of overpower with without the voice signal of overpower adjustment, to generate audio signal.
16., wherein, also comprise as claim 14 or 15 described devices:
Loudspeaker arrangement is used to receive described audio signal, to play this audio signal.
17., wherein, also comprise as the described device of claim 14-16:
The output signal power adjusting device is used for described audio signal is carried out the power adjustment, and wherein, described loudspeaker arrangement receives described through the adjusted audio signal of overpower, and is described through the adjusted audio signal of overpower to play.
18. as the described device of claim 14-17, wherein, described device sound mixing is the simulation device sound mixing, being used for that described a plurality of voice signals are simulated audio mixing handles, to generate audio signal, wherein, described a plurality of input units are imported a plurality of analoging sound signals respectively.
19. device as claimed in claim 18, wherein, also comprise at least one D/A conversion device, be used at least one described input unit input is converted to analog signal for the voice signal of digital signal, wherein, described simulation device sound mixing is simulated the audio mixing processing with described at least one voice signal and other voice signals that was analog signal originally that is converted to analog signal, to generate audio signal.
20. device as claimed in claim 19, wherein, also comprise at least one decoding device, be used for the coded digital signal of at least one described input unit input is carried out decoding processing, wherein, described D/A conversion device is converted to analog signal with decoded at least one voice signal.
21. as the described device of claim 14-17, wherein, described device sound mixing is digital device sound mixing, being used for that described a plurality of voice signals are carried out digital audio mixing handles, to generate audio signal, wherein, described a plurality of input units are imported a plurality of digital audio signals respectively.
22. device as claimed in claim 21, wherein, also comprise at least one decoding device, be used for the coded digital signal of at least one described input unit input is carried out decoding processing, wherein, described digital device sound mixing with described decoded at least one voice signal and all the other described be not that the voice signal of coded digital signal carries out digital audio mixing and handles, to generate audio signal.
23. as the described device of claim 14-17, wherein, described device sound mixing is digital device sound mixing, described a plurality of voice signals are carried out digital audio mixing to be handled, to generate audio signal, and also comprise at least one analog/digital conversion device, be used at least one described input unit input is converted to digital signal for the voice signal of analog signal, wherein, described digital device sound mixing carries out digital audio mixing processing with described at least one voice signal and other voice signals that was digital signal originally that is converted to digital signal, to generate audio signal.
24. device as claimed in claim 23, wherein, also comprise at least one decoding device, be used for the coded digital signal of at least one described input unit input is carried out decoding processing, wherein, to be converted at least one voice signal of digital signal, described decoded at least one voice signal and all the other described be not that the voice signal of coded digital signal carries out digital audio mixing and handles to described digital device sound mixing with described, to generate audio signal.
25., wherein, also comprise as each described device among the claim 14-24:
At least one storage device is used for the stored sound signal file,
Wherein the described interior voice signal file of described storage device that is stored in of at least one described input unit control is as its voice signal of exporting.
26. device as claimed in claim 25 wherein, also comprises:
The voice signal document input apparatus is used for the audio files of outside is inputed to described storage device.
27. as each described device among the claim 14-26, wherein, at least one described input unit also comprises:
At least one storage device is used for the stored sound signal file, and the described interior voice signal file of described storage device that is stored in of described input unit control is as its voice signal of exporting.
28. device as claimed in claim 27, wherein, at least one described input unit also comprises: the voice signal document input apparatus is used for the audio files of outside is imported described storage device.
29. as each described device among the claim 14-28, wherein, at least one described input unit also comprises:
Sound collection equipment is used to gather the external voice signal, wherein, and the described voice signal that described external voice signal is exported as at least one described input unit.
30. device as claimed in claim 29, wherein, described sound collection equipment is the microphone in this mobile device.
31. device as claimed in claim 29, wherein, described sound collection equipment is an external equipment.
32. as each described device among the claim 14-31, wherein, described voice signal comprises voice, accompaniment sound signals.
33. as each described device among the claim 16-32, wherein, the equipment of raising one's voice of former existence is same equipment in described loudspeaker arrangement and the described mobile device.
34. a mobile device that possesses sound mixing function is characterized in that, comprises as each described device in the claim 14 to 33.
35. mobile device as claimed in claim 34 is characterized in that, also comprises:
Switching device is used for opening or cutting out described device.
36. as each described mobile device among the claim 34-35, wherein, also comprise at least one input signal power control button, be connected that the voice signal that is used at least one described input unit is exported carries out the power adjustment with described at least one input power adjusting device.
37., wherein, also comprise the output signal power control button as each described mobile device among the claim 34-36, be connected with described output signal power adjusting device, be used for described audio signal is carried out the power adjustment.
38. as each described mobile device among the claim 34-37, it is characterized in that, also comprise:
The audio mixing control device is used to control the audio mixing process, and it comprises control module and interactive module, and described control module is used to control described device, and described interactive module is used for interactive interface being provided and user's selection being sent to described control module to the user.
39. as the described mobile device of claim 34 to 38, it is characterized in that, be in mobile phone, personal digital assistant, portable media player, multimedia video central platform product, MP4 player or the handheld game machine any.
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| CNA2006101172176A CN101166317A (en) | 2006-10-17 | 2006-10-17 | A method and corresponding device for providing mobile equipment with sound mixing function |
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| CNA2006101172176A CN101166317A (en) | 2006-10-17 | 2006-10-17 | A method and corresponding device for providing mobile equipment with sound mixing function |
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