TW201118862A - Accompaniment music signal generating apparatus - Google Patents

Abstract

This invention provides an accompaniment music signal generating apparatus including a first frequency division module, a second frequency division module, a subtraction module and a combination module. The first frequency division module is used for dividing a left- channel music signal into N left-channel pending signal and at least one left-channel conserved music signal where N is a positive integer. The second frequency division module is used for dividing a right-channel music signal into N right-channel pending signal and at least one right-channel conserved music signal. The subtraction module is used for subtracting the N left-channel pending signals and the N right-channel pending signals according to N weight values to generate N subtracted signals. The combination module is used for combining the at least one left-channel conserved signal, the right-channel conserved signal and the N subtracted signals to generate an accompaniment music signal.

Description

201118862 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to sing-song music signal generation technology, and in particular to sing-song music signal generation technology using vocal cancellation technology. [Prior Art] Karabak — The word originated from Sakamoto, meaning “no symphony of no one”, which provides music that the general public plays like a band, so that it can show the singer like a professional singer. In other words, the Karačk singer is different from the usual vocal songs, which have pure accompaniment channels without singers to provide users with singing or other entertainment purposes. Most of the current karaoke devices use midi synthetic music or live accompaniment, which includes accompaniment music without singing songs, which is different from the popular song record = including singing songs. At present, most of the karaoke-related narrow songs on the market are reproduced by the record companies or authorized by the phonograph manufacturers. Therefore, the average record consumer must obtain a singer or a phonograph to enjoy the karaoke singing. Singing the scene (4) 1 money is recorded as a stand-up, it sounds like a performance, let k be due to accompaniment music (four) sound like the direction of the different kinds of surrounds. This feeling is actually not really a musical instrument in the middle of the recording space. Through the f, the mixer made the singer's sound day as if it were in stereo 201118862 and the instrument surrounds the singing so that the listener feels that the singing voice is coming towards it, and the background music comes from different directions. The easiest way to create such a feeling is to control the singing sounds in the left and right channels to be the same or similar, and the background music to be the same as the left and right channels*, and the instruments included in the left and right channels must also differ. In other words, a typical record song usually has two sound-like channels, both of which contain singer singing and accompaniment music, and the two sounds _ singing sounds are very similar, and the difference between the two channels is different. Larger, to create the effect of sound lingering. According to the above-mentioned original ί 里 'currently there are a number of audio software, such as GoldWaveTM ^ Adobe AuditionTM ^ DAFX StudioTM a A = ART Kamoke StudioTM, etc. 'has a simple vocal production function, month b enough to pass the vocal, 4 divide technology will be the album record song Turn into singer music. However, current vocal cancellation techniques are typically performed using stereo left and right sound 1 subtraction. Therefore, when the left and right channels contain a large difference in human voices, t is usually not effective in eliminating human voices. And, the left and right channels are directly subtracted, ',. It is also expected that the accompaniment sound of the low-frequency instrument will also make the resulting chorus effect not ideal. SUMMARY OF THE INVENTION The present invention solves the above problems only in the age of reading and providing a cake singing sound sewing device and method. According to an embodiment of the present invention, a sing-song music signal generating device includes a first frequency dividing module, a second frequency dividing module, a subtracting module, and a combination module. The first frequency dividing module is configured to resolve a left channel music signal into N left channel pending signals, where n is a positive integer. The second frequency dividing module is configured to decompose a right channel music signal into N right channel pending signals. One of the N right channel pending signals corresponds to one of the left channel pending signals, and the left channel pending signal, where / is the range In the meantime one of the integer indicators. The subtraction module is configured to subtract the left channel pending signal from the second right channel pending signal according to a second weight to generate a third subtraction signal. The combination module is configured to combine a singer music signal according to the one subtraction signal. According to another embodiment of the present invention, a sing-song music signal generating device includes a first frequency dividing module, a second frequency dividing module, a subtracting module, and a combination module. The first frequency dividing module is configured to decompose a left channel music signal into a left channel pending signal and at least one left channel reserved signal, wherein Ν is a positive integer. The second crossover module is used to decompose a right channel music signal into a 彳 彳 彳 彳 彳 彳 彳 右 右 右 右 右 右 右 右 右. The N right channel pending processing of the money is still in the view of the mine should be ^ one of the N left channel pending signals z = left channel pending signal, ', Zhongyu is off in the 丨# Between ν - integer 彳 标 。. The subtraction module is configured to subtract the signal to be processed from the left/left channel and the signal to be processed in the right/channel according to a second weight. The combination module is used to sing a music signal according to the at least - Qian Weiliu signal, the resident-small-right channel reservation signal, and the N18-track test. According to another embodiment of the present invention, the accompaniment music subtraction generating party: the vocal music signal generating method, first, a left channel music signal knife is N left channel pending signals, where n is a positive integer . Then, the ^Hao θCai Wei generation method decomposes the right channel music 为 into N right 道 channels to be processed. The N right channel bribery shouts - the z-right sound 2 processing 峨 should be in the N left channel to wait for one of the .. channel pending signals, where, · is in the range of 1 The N-integer refers to ^ and then, 'the vocal sounding Lay number generation method is based on - the first/difficult, the two left sound processing signal is subtracted from the ^right channel pending processing to generate an electrical signal. Finally, the accompaniment music production method is based on the N phase-reduction greens--song music signals. According to another embodiment of the present invention, the sing-along music signal generation method is a music signal generation method. First, a left channel music signal is N left channel pending signals and at least one left channel. Keep the signal and H is 7"Wei. Then, the singer sings to generate green to decompose a right sound into N right channel to be processed ifi number and at least - right channel to keep from the right channel to be processed - ζ · right channel to be processed == Should be one of the left channel pending processing of the first / left channel to be accompanied by Γ ΐ ΐ for bribe 1 to Ν ,, indicator. Then, the signal generation method is based on the -th y weight, the third channel is left to be § \ and the right/left channel to be processed to generate - the first phase subtraction 201118862. Finally, the accompaniment music production method can have at least a left channel reservation signal, the at least-right channel reservation signal, and the N-eye reduction number cylinder to output a sing-along music signal. σ Therefore, the present invention provides a sing-song music signal generating apparatus and method which utilizes the two-channel syllabic nature of a popular pop song to perform vocal sound division to produce accompaniment music.曰/ Different from the technical content of the vocal elimination technology that directly subtracts the left and right channels. According to this issue, the singularity of the music and the silk and the method, considering the difference between the two [^'s day and day, Therefore, the minimum-square error algorithm is used to obtain the optimal weight of the two-channel signal subtraction. The same invention considers the difference in the spectral distribution of the accompaniment music and the singing voice. Therefore, it is possible to use the frequency band to cut the higher energy to make the singing voice, and to preserve the low frequency music that is easily deleted by the signal subtraction, such as drum sound, bass, and the like. The advantages and spirit of the present invention can be further understood from the following detailed description of the invention and the accompanying drawings. [Embodiment] FIG. 1 is a block diagram showing a sing-song music signal generating apparatus according to an embodiment of the present invention. As shown in the figure, the vocalizer: wood signal generating device ― includes "1Q", a second sub-group 12, a subtraction module 14 and a combination module 16. 201118862 In this embodiment, the first frequency dividing module 10 is configured to decompose a left channel music signal L into N left channel to be processed signals Li, L2, .., ln, where N is a positive Integer. The second frequency dividing module 12 is configured to decompose a right channel music signal R into N right channel pending signals Ri, &, ..., Rn. In the actual application, the first frequency dividing module 10 and the second frequency dividing module 12 can be respectively a finite impulse response filter, but not limited thereto. In this specific embodiment, the N right channel pending signals &,...,

One of the right/right channel pending signals in Rn corresponds to one of the n left channels to be processed 汛唬Lh L2, . . . , LN, the left/left channel pending signal, where ζ· is the range An integer indicator between 1 and Ν. For example, as shown in FIG. 1, the first right channel pending signal R1 corresponds to the first left channel pending signal ^, and the second right channel pending signal I corresponds to the second left channel to be processed. Process signal L2, and so on. Referring to FIG. 2, FIG. 2 is a schematic diagram showing a cutoff frequency of a frequency division module according to an embodiment of the invention. In one embodiment, the first frequency dividing module 10 and the second frequency dividing module 12 have an order setting of 320, the audio sampling frequency is 22050 Hz, and the cutoff frequency (cutoff is set to O-100 Hz, 100, respectively). -3000, 3000-6000Hz, 6000-9000Hz, 9000-11025Hz, as shown in Figure 2. It means that N is equal to 5, left channel pending signal L!, L2, ..., LN and right channel are waiting The frequency range of the signal Ri, the ruler 2, ..., Rn respectively falls within the above five cutoff frequency ranges. In this example, the settings of the first frequency dividing module 1〇 and the second frequency dividing module 12 are only one implementation. The example is not limited to the 201118862. The subtraction module 14 is used to generate the z-left channel pending signal _ according to a z-weight, to be processed to reduce the city to generate - the first For example, as shown in FIG. 1 , the subtraction module 14 can subtract the left channel pending signal from the first right channel to be processed according to the third weight. The first phase subtraction signal Sb is generated; and the subtraction module 14 can use the second left channel pending signal I: and the second right channel pending signal R2 according to the second weight. Subtracting to generate the second phase subtraction signal Sb2, and so on. Compared with the traditional technique of directly subtracting the left and right channel music signals to eliminate human voice, the left and right channel music signals are subtracted according to the weight, because it can handle left and right There is a difference in the amount of sound from the sound, so a better vocal elimination effect can be achieved.'

In a specific embodiment, as shown in FIG. 1, the subtraction module 14 may further include a weight calculation unit H0 for performing the first/right channel according to the first left channel to be processed. Processing tank calculations (4) Dimensional weights. It is worth noting that the weights may be set according to actual application conditions, and are not limited to being calculated by the weight calculation unit 140. In the actual calculation, the weight calculation unit 14G can calculate the first/weight value by the least square error algorithm, but is not limited thereto. For example, the weighting unit 14兀 can obtain the fth weight for the third left channel pending signal and the right channel pending signal ', and the fth weight can make The f 201118862 left channel pending signal starts to have the smallest square value,: ΐ Z right _ bribe turtle · one of the remaining can be the following formula: (4) depreciation _ best effect. The above condition (1) where ^ is the time point ' Τ is the total time point of the signal, L, · is the third 待 left channel waiting for the ζ • right channel pending signal, “for the first权 Weight. According to formula (1), the weight can be obtained by the following formula: (2) ^aTinS:JA(〇-^.(〇f According to the partial derivative method, the solution can be solved: 0 (3) da The solution (3) can obtain the following equation (4). Using the above equations (1) to (4), the weight calculation unit 14 can calculate the z-th weight. That is, according to the first left channel The pending signal Li and the 201118862 first right channel pending signal R1, the weight calculating unit 14〇 can calculate the third weight by using the formula (1) to the formula; according to the second left channel to be processed The signal ^ is private to the second right channel pending signal, and the weight calculation unit 140 can calculate the second weight by using equation (4), and so on.

The combination module 16 is configured to output the companion signal AAS according to the N subtraction signals sbh Sb2, . . . , SbN and a. Due to the n subtraction signals

Sb2"··, SbN 'singing vocals have been eliminated' so the combination of the N subtractive signals Sbi, Sb2, ..., sbN can get the singer music Lu 5 hole 5 tiger AAS we want. With the sing-song music signal generating device of the specific embodiment, the record music generally having the singing voice can be converted into the accompaniment music, and has a good vocal cancellation effect. Referring to FIG. 3, FIG. 3 is another drawing according to the present invention. The function block diagram of the singer music signal generating device 3 of the specific embodiment. As shown in FIG. 3, the singer 曰 况 况 产生 generating device 3 includes a first frequency dividing module 3 〇 and a second minute frequency modifying module 32. a subtraction module 34 and a combination module 36. In this embodiment, the first frequency division module 3 is configured to decompose a left channel music signal L into n left channel to be processed signals. LP, u > 2, ..., 〇 ^ and at least one left channel reserved signal Lc, where N is a positive integer. The second frequency dividing module 32 is used to decompose a right channel music signal R into N right channel pending signals RPh RP2, ···, RPN and at least one right channel In the actual application, the first frequency dividing module 30 and the second frequency dividing module 32 can be a finite pulse filter, respectively, but not limited thereto. In this embodiment, , the N right channel to be processed signal!, at 2,., the RPN-the zth right channel pending signal is applied to the N-left left channel pending signal LPh LP2, _.., LPN towel - zth • left channel pending signal, / is an integer index ranging from 1 to N. For example, as shown in Figure 3, the first right channel pending signal RP! corresponds to The third left channel pending signal * LPl 'the second right channel pending signal 对应 corresponds to the second left channel to be processed ... signal lp2, and so on. In a specific embodiment, the first frequency dividing mode The order of the group 30 and the second frequency dividing module 32 is not 320 'the audio sampling frequency is 22 () 5 () Hz, the cutoff frequency (Cutoff frequency) are respectively set to 〇 1 〇〇Ηζ, ι 〇 〇3〇〇〇Ηζ, -6_Hz, _〇·〇Ηζ, 简^ Move 5Hz, as shown in Figure 2. The settings of the first-division group 3Q and the second frequency-dividing module 32 are only Lu for The implementation example 'is not a necessary limitation. In the specific embodiment, the z-th left channel pending signal has a Z-th preset vocal drunk, and the z-th bank road number has the (7) For example, the frequency range of the second right channel pending signal 牝 and the first left channel pending signal LPi is respectively a trace of 3 〇 00, that is, the third preset vocal frequency range; The right channel pending signal RP2 and the second left channel pending signal 咕 have a frequency range of 3_-_GHz, the second preset voice vocabulary range; the third right channel is 201118862 « processing signal RP3 and the third The frequency range of the left channel pending signal Lb is 6000-9000 Hz, that is, the third preset vocal frequency range. On the other hand, since the two frequency ranges of O-lOOHz and 9000-11〇25Hz are not the vocal frequency range, it means that in most songs, the possibility that the singing frequency is below 100 Hz or above 9000 Hz is very low. The left channel reserved signal LC and the right channel reserved signal Rc of the frequency range are not subjected to subtraction because of their low probability of having a human voice. Thereby, the high and low frequency music signals with low vocal probability are retained, so that the final vocal sounds have better sound quality per music signal. The subtraction module 34 is configured to subtract the z-left channel pending signal from the third-right channel pending signal according to a z-th weight to generate a z-th phase subtraction 5 tiger. For example, as shown in FIG. 3, the subtraction module 34 can subtract the first left channel pending signal LP1 and the second right channel pending signal RP! according to the ith weight to generate the first The subtraction signal Sbi; and the subtraction module 34 can mark the second left channel pending signal Lb and the second right channel pending signal 10>2 according to the second weight to generate the second phase Decrement number 81? 2, and so on. Compared with the traditional technique of directly subtracting the left and right channel music signals to eliminate the human voice, the left and right channel music signals are subtracted according to the weight, because the difference between the left and right channel voices can be handled, so that a comparison can be achieved. Good to eliminate vocal effects. In a specific embodiment, as shown in FIG. 3, the subtraction module 34 can further 14 201118862

• I j includes a weight calculation unit 340 for calculating the second weight according to the second left channel pending signal and the second right channel pending signal. The technical method of the weight calculation unit 340 is similar to the weight calculation unit 140 of the above specific embodiment. For details and examples, reference may be made to the above description, and details are not described herein. The combination module 36 is configured to combine a vocal music signal according to the at least one left channel reservation signal 1 (::, the at least one right channel reservation signal RC, and the one of the subtraction signals Sb1, Sb2, and #SbN AAS. Due to the subtraction signal in It N

Sbb Sb2".., SbN _, the singing voice has been eliminated, so the above-mentioned music message can be combined to get the singer music signal AAS we want. Therefore, with the singer music signal generating device of the specific embodiment, - The record music with singing vocals is turned into singer music, and has a good vocal secret effect. Moreover, due to the high and low frequency and the vocal probability of a small music post can be _ 胄 down, so that the resulting companion ship has a better 'Qin Jia's sound quality. Please refer to Figure 4, and - and participate in the - and Figure 2, Figure 4 shows the flow chart of the sing-song music cans according to the present invention - the actual implementation of the accompaniment The method of generating the pro-number can be applied to the vocal music generating device shown in the figure, but the sand is limited thereto. The content and examples of the vocal music generating device 1 are described in detail above, and are not mentioned here. As shown in FIG. 4, the vocal music signal generating method, firstly, performs step 15 201118862, and SH left channel music is decomposed into n left channel pending numbers, which makes N a positive integer. The sing-song music signal generating method performs step S12 to decompose a right channel music signal into N right-channel pending signals, wherein the N-channel audio signal to be processed--/right channel to be processed, the signal number system Corresponding to the N, left, and left signals to be processed, and the signal to be processed, / is an integer index ranging from 〖 to N. ^ ... Then, the vocal music signal generation method execution step S14, according to the -th/weight, the first left channel pending signal is subtracted from the first right channel pending signal to generate a -Zth subtraction signal. Finally, the singer music signal is generated. The method performs the following steps: </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> <RTIgt; The generating method may further comprise the step of calculating the first/weight value according to the signal of the Z-left channel to be processed and the signal of the second channel to be processed. In practical applications, the Z-weight system is Can be calculated using a least squares error algorithm For details and examples of the steps of calculating the third weight, refer to the above, and no further details are provided herein. Please refer to FIG. 5 'and-see FIG. 3 and FIG. 2, and FIG. A flowchart of a method for generating a vocal music signal according to another embodiment of the present invention. In a practical application, the method for generating a vocal music signal can be applied to the music signal generating device 3 shown in FIG. 3, but not Limits. About accompaniment music 16 201118862 ! The content and examples of the signal generating device 3 have been described above in detail, and will not be described here. For example, if the five numbs are engraved, the sound will be generated. First, perform the step S30. The channel music solution is interpreted as N track-to-process signals and at least-left channel reserved signals, where N is a _-positive integer. Then, the music signal generation method is performed by the step sister, and the right channel music signal is decomposed. For N to paste the pending signal and at least - right sound Wei Wei signal. Li Zhongyu, one of the N right-channel pending signals, the right-to-right channel pending signal pair: in the left-hand pending signal - the third channel to be processed U is the integer index of 1 to Ν. In the embodiment of the present invention, the left channel pending signal has a -first default voice range, and the first/right channel pending signal has the first, preset voice frequency range. Then, the vocal number generation method performs the step (10), and subtracts the line and the right channel to be processed to generate a -Z-th phase subtraction signal according to a view. Finally, the vocal music message is executed in accordance with the method, and the "combined music signal" is combined according to the N subtracting signals. The steps of deleting the details of _ _ and _ can be described in the Zhuang Wen, and will not be repeated here. In a specific embodiment, the sing-song music signal generating method may further include the steps of the z/left channel to be processed and the heart/right channel pending signal to be different from the first/weight value. In practical applications, the first/weight value can be calculated using the -to-square error algorithm. For details and examples of the steps of calculating the value of the first/right 17 201118862, refer to the above, and no further description is given here. With the sing-song music signal generating apparatus and method of the present invention, the two-channel of the popular popular song can be utilized. The signal characteristics, the singing voice is eliminated, and the clothes are accompanied by singing music. Different from the technical content that the common vocal cancellation technology directly subtracts the left and right channels, the sing-song music signal generating device and method according to the present invention considers the difference in the singing volume in the two channels, so that a least square error algorithm can be used to obtain The optimal weight of the two-channel signal is subtracted. ^ At the same time, the present invention considers the spectral distribution difference between the accompaniment music and the singing voice, so σ uses the frequency τ cutting method to eliminate the higher energy singing voice, and retains the young music that is easily deleted by the signal subtraction method, such as drum sound, shooting , can make the final production: the singer sound view has the sound quality of New York. According to the (4), the music production and the method can provide a convenient vocal service for the wide range of users, and satisfy the user's ability to __ (10) and the market can include online online music service, action karaoke, La 〇 κ manufacturing And services, Internet services, telecommunications services, etc. Chu Intervention: With the spirit, and not with the above-mentioned details, it covers the various changes. The land is reduced, and (4) is Fan Ru who hopes to be able to encircle. The patents to be applied for by the present invention are detailed by the above preferred embodiments, and are expected to be more 18 201118862 [Simplified description of the drawings] Figure 1 shows the function according to the present device - specific The functional block diagram of the vocal sound generating device of the embodiment is a schematic diagram of the frequency in the embodiment of the present invention. The function block diagram method of the singer music signal generating device of the specific embodiment of the music signal frequency module: =? According to the present invention - the specific implementation of the singer music signal generation = five stalking music implementation of the singer music news Flow chart of the method. [Main component symbol description] i,]: singer music signal generating device 10, 30: first frequency dividing module 12, 32: second frequency dividing module 14, 34: subtracting module 16, 36: combination module 140, 340: weight calculation unit L. left channel music signal R: right channel music signal L2, ·.., ln, LPb LP2, .." LPN: left channel pending signal Ri, Han 2, · &quot;, RN, RPb RP2, ..., RPN: Right channel pending signal 19 201118862 LC: Left channel reserved signal RC:

Sbi, Sb〗,...,St)N. Phase Reduction 7 Tiger AAS S10-S16, S30-S36: Step Flow Right Channel Reserved Signal: Accompaniment Music Signal

Claims (1)

201118862 ! . VII. Patent application scope ·· 1. A sing-song music signal generation device, comprising: a one-to-one frequency division module for decomposing a left channel music signal into a left channel pending signal and at least a left channel reserved signal, a positive integer; a two-way frequency module for decomposing a right channel music signal into a ^ right channel pending signal and at least one right channel reserved signal, the N One of the right _ lane pending signals, the right channel pending signal corresponds to one of the N left channel pending signals, the z' left channel pending signal, z' is in the range of 1 An integer indicator to one of N; a subtraction module 'for subtracting the left/left channel pending signal from the third Z-right channel pending signal according to a third weight to generate a first And a combination module, configured to combine a sing-along music signal according to the at least one left channel reservation signal, the at least one right channel reservation signal, and the N subtraction signals. 2. The sing-song music signal generating device of claim 1, wherein the subtraction module further comprises a weight calculating unit for the signal to be processed according to the first/left channel and the right/right The channel pending signal calculates the first/weight value. 3. The sing-song music signal generating device described in the second paragraph of the patent application, the weighting material is different from the 7C paste-minimum square error calculus cake (four) number/weight. For example, the chorus music subtraction device of the first item of the first aspect, wherein the first frequency dividing module and the second frequency dividing module are respectively a finite pulse filtering 21 201118862. 5, device, 6, device, 7, a sing-song music signal generating device, including: cross-frequency touch, receive - left channel music channel to be processed signal, N is a positive integer; smart left ^ frequency Touch 'm right channel music city is decomposed into N right channels to be processed, the _ right channel to be processed for the money - the z-th turn to be the u-u threatening the left-hand processing signal - z Left channel pending signal, ζ· is the index of the range in (7) The subtraction board group '(4) subtracts the left channel pending signal number from the right/left channel pending signal according to the fine value to generate a lake lake subtraction group, and the fork group is used according to the N A subtractive signal combines a singer music signal. ’ 8. The sing-song music signal generating device described in item 7 of the patent application scope, the Lizhong group further comprises a weight calculating unit for calculating the z-right channel according to the third value. The number of the waiting number is calculated by the first tank 9, the singer music signal as described in item 8 of the application of the patent, and the right is calculated by a least square error algorithm. The third weight. 10. The accompaniment music signal generating apparatus of claim 7, wherein the first frequency dividing module and the second frequency dividing module are respectively a finite pulse filter. 11. A method for generating a vocal music signal, comprising the steps of: decomposing a left channel music signal into a left channel pending signal and at least one left channel reserved signal, wherein the signal is a positive integer; The music signal is decomposed into a right channel pending signal and at least a right channel reserved signal, and one of the right channel pending signals is the right channel pending signal corresponding to the ^^ left channel One of the pending signals, the left channel pending signal, is an integer index between the ranges; the third channel to be processed according to the -th/weight value and the fth right channel The signals to be processed are subtracted to generate a third subtraction signal; and a vocal music signal is combined according to the at least-left channel reserved signal, the resident-right channel reserved signal, and the N subtracted signals. 12. The method for generating a vocal music signal according to the n-th item of the cap-specific sing-along sing-along method further includes calculating the ζ ζ 杂 杂 according to the D-channel waiting signal and the circumstance to be processed. step. 13. If the singer music signal generation method described in the 12th item of Shen Qing Patent &amp; is included, the weight value is calculated by the least square error algorithm. 14. If you want to turn the vocal number generation method described in the range correction item, the left 声道 待 观 具有 具有 has a preset vocal range. 23 201118862 15. The method for generating a vocal music signal according to (10), wherein the brother/right channel pending signal has a preset vocal frequency range. 16. A vocal music signal generating method, comprising the following steps : Decomposing a left channel music signal into N left channel pending signals, a positive integer; decomposing a right channel music signal into N right channel pending signals, the N right channel pending signals One of the reticular channel pending signals corresponds to one of the N left channel pending signals; the left channel pending signal, ζ· is an integer index ranging from 1 to n; «ί-第/观, Lai Di / left channel waiting for the new job and the known right channel pending signal minus to generate a third 相 • subtraction signal; and according to the one of the three reductions The sing-along music signal generating method, wherein the sing-along music signal generating method further comprises a signal according to the D-channel pending signal and the second right channel. The pending signal calculates the third weight夕 18. In the 18th, the singer music signal generation method described in the third paragraph of the patent application scope, the first appeal weight is calculated by a least square error algorithm.