CN113270081A

CN113270081A - Method for adjusting accompaniment sound of song and electronic device for adjusting accompaniment sound of song

Info

Publication number: CN113270081A
Application number: CN202010093519.4A
Authority: CN
Inventors: 陈宣佑; 陈俊龙; 李宜庭; 赵冠力; 高国维; 杨治勇; 杨国屏
Original assignee: Pixart Imaging Inc
Current assignee: Dafa Technology Co ltd
Priority date: 2020-02-14
Filing date: 2020-02-14
Publication date: 2021-08-17

Abstract

A method for adjusting accompaniment of song is used for making at least one accompaniment segment of song shift in one song, so that one song has accompaniment segments of different shift, more singers can sing the song which can not be sung by the singer originally in the singing range, especially for the singer with narrow singing range.

Description

Method for adjusting accompaniment sound of song and electronic device for adjusting accompaniment sound of song

Technical Field

The method for adjusting accompaniment sound of song through electronic device is applied to karaoke, for example.

Background

In general karaoke, if a singer cannot sing a higher voice or a lower voice, the singer needs to tune the song, and usually the singer tunes to a high tone or a low tone according to his experience before starting to sing. If transposition is performed in the middle, it is difficult in practice, and since singing is done quickly, few people actually do so.

US patent No. 5296643 (Automatic music key adaptation system for karaoke apparatus) first tunes each song to accompaniment sounds of six different ranges, such as male bass, male alt, male treble, female bass, female alt, female treble, and then selects a range suitable for the singer by the operator. US patent 5296643 does not discuss how to transpose, but it is conventional to transpose the entire tune, for example, for a male whispered singer, the original song is entirely transposed to the low. US patent 5296643 considers the breadth of the range of singers and the fact that the range of many people cannot be classified in these six categories, especially the range of singers is very different.

CN patent No. 1150289 (Karaoke Apparatus detecting register of live vocal to tune harmony vocal) discloses a detector device analyzing the collected vocal sound to detect the vocal range of the live vocal part of the actual vocal, and then automatically adjusting the accompaniment sound. That is, tuning while singing, but when the singer walks around (especially singing an immature song), it is easy to predict the error.

For singers singing in narrow range, the big trouble is that the singers do not have much singing, even if the singing is performed in advance, the singing is not performed because the consistent tuning is performed on one song, for example, one step is performed in the bass, the singing is often impossible, part of treble can be sung originally, but some treble can not be sung, but two steps are performed in the bass, the bass part can not be sung.

This is especially true for a wide range of songs, and many people like to sing especially wide range of songs, but the range of singing themselves is too narrow, so it is desirable to improve the problem.

Disclosure of Invention

In view of the above, the present invention provides a method for adjusting accompaniment tones of a song, so as to solve the conventional problems, so that one song can be transposed first and there are accompaniment tones (non-uniform transposition) with different transpositions, so that more singers, especially for the singers with narrow singing range, can sing the song that they cannot sing in their singing range.

To achieve the above object, the present invention provides a method for adjusting accompaniment music of a song, for adjusting high and low frequencies of a plurality of accompaniment music pieces of the song, each accompaniment music piece of the song corresponding to each original music piece of a song, wherein the method is performed when a range of a singer is smaller than a total original music range of the song, the method comprising:

comparing the vocal range of the singer with the vocal segments of the original singers to judge whether the vocal range of the singer covers the vocal segments of the original singers; and (c) and (d).

According to the above steps, at least one of the accompaniment music segments is transposed so that the corresponding original karaoke music segment of the transposed accompaniment music segment is covered by the singer's vocal range, and at least one of the accompaniment music segments is not transposed, and the corresponding original karaoke music segment of the accompaniment music segment which is not transposed is covered by the singer's vocal range.

According to an embodiment, at least two of the song accompaniment pieces are transposed, and the two song accompaniment pieces are transposed at different orders. The number of the multiple song accompaniment music pieces is m pieces in total, the multiple song accompaniment music pieces are divided into n groups of song accompaniment tone transposition pieces according to time, each group of song accompaniment tone transposition pieces has y song accompaniment music pieces in total, wherein: the order of the tone-shifted segments of the song accompaniment tones of each group is the same; and m 1000 is 5, n m-2 is 3, y 500 is 1. According to a preferred embodiment, the smaller n the better.

Drawings

FIG. 1 is an electronic block diagram of an electronic device for adjusting accompaniment sounds of a song according to the present invention.

FIG. 2 is a functional diagram of an electronic device for adjusting accompaniment sounds according to the present invention.

FIG. 3 is a flowchart illustrating the operation of the method for adjusting accompaniment sounds.

FIG. 4 is a diagram illustrating the comparison between the total original singing voice range and the singing voice range according to the present invention.

FIG. 5 is a diagram illustrating the pitch shift of accompaniment music according to the present invention.

FIG. 6 is a diagram illustrating a first embodiment of transposing a segment of accompaniment music into a transposed segment of accompaniment music according to the present invention.

Fig. 7 is a schematic diagram of how the results are obtained computationally in relation to the first embodiment of fig. 6.

FIG. 8 is a diagram illustrating a second embodiment of transposing a segment of accompaniment music into a transposed segment of accompaniment music according to the present invention.

FIG. 9 is a diagram illustrating a third embodiment of transposing a segment of accompaniment music into a transposed segment of accompaniment music according to the present invention.

Wherein the reference numerals are:

processor 11 of electronic device 10 for adjusting song accompaniment sound

Memory 12 software program 13

Adjusted song 50a of song 50

Song accompaniment track 51 original song human track 52

Total original song human voice range 52T

Singer's range 62 song accompaniment tone-shift segment 70

Detailed Description

In order to make the technical content of the present invention more comprehensible, preferred embodiments are described below.

Please refer to fig. 1-2 together to illustrate the electronic device 10 for adjusting accompaniment sounds according to the present invention. The electronic device 10 for adjusting song accompaniment sounds comprises a processor 11 and a memory 12, wherein the memory 12 stores a software program 13. The processor 11 executes the software program 13 to process a song 50 so as to output an adjusted song 50 a. The song 50 according to the present invention is a song 50 having accompaniment sound of the song and having lyrics to make a person sing the song, so that a user can sing the song he can sing according to the adjusted song 50 a. The electronic device 10 for adjusting the accompaniment sound of the song is a computer, a mobile phone, a flat panel, a karaoke device, etc.

Please refer to the flowchart of the operation of the method for adjusting accompaniment sounds of a song according to the present invention, i.e., the flowchart performed by the processor 11 executing the software program 13, and refer to the auxiliary descriptions of fig. 4 to 9.

Step 300: a singer's voice field 62 is obtained. The singing player's range 62 may be known to the electronic device 10 for adjusting the accompaniment sound of the song by input means, or the electronic device 10 for adjusting the accompaniment sound of the song or other software programs may detect the singing player's range 62, since the detection of the singing player's range 62 is not described in detail in the prior art.

Step 301: is the singer's voice range 62 judged to be less than the total original singing voice range 52T?

Referring to fig. 4, a graphical comparison of the total original singer voice range 52T and the singer voice range 62 is shown. The grand native song voice domain 52T refers to the voice domain (highest to lowest) required for the voice of the song 50 to sing, such as from F2 to A5, for example. The vocal range 62 of the singer is the vocal range that the singer can sing, and is good at singing high pitch, good at singing middle pitch, good at singing low pitch, and wide in vocal range, so that most of the songs can be sung; a person has a narrow range of voices, so that only a small number of songs can be sung.

Figure 4 lists six singers singing the singer voice field 62. The 1 st singer's voice range 62 entirely encompasses the total original-song-person voice range 52T, so the singer's voice range 62 is greater than the total original-song-person voice range 52T, so that the step 303 can be performed without transposition of all of the song accompaniment sound segments 51.

Although the 2 nd and 3 rd singer ranges 62 do not include the total original singer range 52T, the 2 nd singer range 62 is larger than the total original singer range 52T, so that the song 50 is only required to be shifted to the low tone and the high tone, respectively, so that the consistent shifting of all the accompaniment sound segments 51 of the song in step 303 can be performed.

The 4 th to 6 th singers 'vocal range 62 is smaller than the total original singer's vocal range 52T, so that it is not feasible to uniformly transpose all the accompaniment musical segments 51 of the song in step 303, so that step 302 is performed.

Step 302: the singer's vocal range 62 is compared with the original singer's vocal segments 52 to determine whether the singer's vocal range 62 covers the original singer's vocal segments 52.

Please refer to fig. 5, which is a diagram of the transposition of the song accompaniment segments 51. A song 50 may be divided into a plurality of accompaniment sound segments 51, typically each syllable, or each lyric segment as a segment, such as for example the Birthday Happy song, "Happy Birthday" with the lyrics: "Happy Birthday to you," Happy Birthday, Happy Birthday to you "may be divided into five song accompaniment pieces 51. How to make the song 50 into the accompaniment track 51 may be manually or interpreted by a software program, and is not limited to each lyric, because there is a possibility that the two lyrics have a great correlation, the two lyrics may be combined into one accompaniment track 51.

In the embodiment of fig. 5, there are a song accompaniment track 51a and a song accompaniment track 51 b. The song accompaniment track segment 51a corresponds to an original song segment 52 a; the song accompaniment track 51b corresponds to an original singer track 52 b.

In step 302, the singer's range 62 is compared with the original singer's range 52a, and the singer's range 62 is found to have the original singer's range 52a too high, so that the song accompaniment track 51a is shifted to the low tone to be the song accompaniment track 51a ' so that the song accompaniment track 51a ' corresponds to the new original singer's range 52a ', and the singer's range 62 may include the original singer's range 52a '.

When comparing the singer's vocal range 62 with the original-singer's vocal pieces 52b, it is found that the singer's vocal range 62 contains the original-singer's vocal pieces 52b, and thus the song accompaniment pieces 51b do not necessarily need to be transposed.

Step 304: the accompaniment segments 51 are transposed so that the corresponding original singer voice segment 52 of the at least one transposed accompaniment segments 51 is covered by the singer voice field 62. Step 304 is illustrative of the embodiment of fig. 5 described above.

It should be noted that some music pieces in a song do not correspond to the lyrics to be sung, and the accompaniment music pieces 51 are only corresponding to the lyrics to be sung, i.e. the accompaniment music pieces 51 correspond to the original song person sound pieces 52. If the pure music piece not corresponding to the lyrics is to be transposed, it is suggested to refer to the preceding and following accompaniment pieces 51 as being transposed or not, for example, the accompaniment pieces 51 preceding the pure music piece are transposed by one step to the high pitch, and the pure music piece is also transposed by one step to the high pitch.

In order to achieve the above-mentioned purpose of the flowchart of fig. 3, there are many ways to achieve this, and a good way will be described below. Referring to fig. 6, assuming that a song 50 is divided into 12 accompaniment sound segments 51, according to the explanation of the

above steps

302 and 304, for example, the 1 st accompaniment sound segment 51 can be shifted to the low pitch by one step, and can be maintained as the constant pitch, both of which can be consistent with the condition that the singer's range 62 covers the original song sound segment 52 corresponding to the 1 st accompaniment sound segment 51, the flag is "1" for marking, and the meaning of "0" for marking is not consistent with the condition that the singer's range 62 covers the original song sound segment 52 corresponding to the 1 st accompaniment sound segment 51, such as the 1 st accompaniment sound segment 51 is shifted to the low pitch by two steps, to the high pitch by one step, and not shifted to the high pitch by two steps.

When shifting tones, the unit of shifting tones is a semitone. It should be noted that in this specification, the meaning of a pitch-shifting first order is usually that a pitch-shifting first order is called a half-tone first order, and of course, a pitch-shifting first order can be defined as a pitch-shifting of two half-tones, three half-tones, four half-tones, and so on, according to the situation.

The matrix listed in fig. 6 thus shows how the accompaniment segments 51 may be transposed or unshifted. At this time, it can be seen that the 1 st to 4 th accompaniment segments 51 may constitute a accompaniment transposition segment 70, i.e., the 1 st to 4 th accompaniment segments 51 are consistent to be transposed to a low level by one scale. The 5 th to 11 th accompaniment pieces 51 may be combined into a accompaniment sound-transposition piece 70, which is consistently transposed one scale to a high scale, while the 12 th accompaniment piece 51 alone is unique to the accompaniment sound-transposition piece 70, which is transposed two scales to a high scale.

How to form the accompaniment sound transposition segment 70 is mathematically not only in one way, but fig. 7 shows one way of adding consecutive 1's from bottom to top, and if 0's are encountered, the 1's are not added cumulatively. Referring to the result of FIG. 7, each row of the largest number is then selected as the basis for selecting a song accompaniment key shift segment 70. For example, the number of 1 st accompaniment track 51 to be shifted to the low pitch by one step is 4, and thus the 1 st accompaniment track 51 to be shifted to the low pitch by one step is determined, and in the same manner, the 1 st to 4 th accompaniment tracks 51 constitute a accompaniment track 70.

The above operation is explained in more detail as follows:

step 1: as explained above with reference to FIG. 6, the song accompaniment segments 51 with the "transposable matrix" in FIG. 6, labeled "transposable" or "unmodulated" 1, are generated to match the singer's range 62 covering the original song segments 52 corresponding to the song accompaniment segments 51, and otherwise 0. The value of each flag in fig. 6 is 1 or 0.

Step 2: accumulating the values of the flags in the matrix row by row from bottom to top, replacing the original value of the flag with the accumulated value, and if 0 is met, accumulating to 0.

And step 3: from top to bottom, search the maximum flag value of each row, from top to bottom according to the flag value until the value is 1, and jump the next row to continue searching until the last row according to the method.

Step 4, recording the step 3 path as the basis for composing the accompaniment sound transposition segment 70 (shown as the dashed box in FIG. 7).

It should be noted that there are many solutions for the accompaniment note shift 70, such as a violent solution, which lists each condition and selects the proper accompaniment note shift 70. The above may be described literally as follows: the number of the multiple song accompaniment sound segments 51 is m segments (m is 12 in this embodiment), and the multiple song accompaniment sound segments are divided into n groups of song accompaniment sound shift segments 70 (n is 3 in this embodiment) according to time, each group of song accompaniment sound shift segments 70 has y song accompaniment sound segments 51 (y values of the group of song accompaniment sound shift segments 70 of 3 in this embodiment are 4,7,1 respectively), wherein the "" order "(including zero shift) of the shifted and adjusted song accompaniment sound shift segments 70 in each group is the same (m is less than or equal to 1000, m is less than or equal to 3 n is less than or equal to m-2, and y is less than or equal to 1 is less than or equal to 500.

The minimum n is preferably sought in the above manner, and the minimum n (in this embodiment, n is 3) can be sought as described above with reference to fig. 6 and 7. Referring to fig. 8, as another result, n is also 3, and 11 th to 12 th accompaniment track segments 51 may constitute a accompaniment track transposition segment 70, i.e., y is 2, with the possible advantage that two accompaniment track segments 51 are transposed together, which may be better than the one accompaniment track segment 51 alone.

Referring to fig. 9, there are 5 accompaniment transposition segments 70 in total, i.e. n is 5, and although this solution can be played by the singer, the entire song is cut into 5 transposition segments, and the transposition segments cut into 3 in fig. 7 and 8 are better.

It should be noted that the above-mentioned embodiments are merely examples for convenience of description, and the scope of the claims of the present invention should be determined by the appended claims rather than by the limitation of the above-mentioned embodiments. The method of the present invention can be applied to real-time processing, such as immediately operating after singing the singer to order the song, or pre-processing, such as adjusting 1000 songs contained in the electronic device 10 (e.g. home or cloud server) accompanying the song, and operating 1000 songs first according to the individuals or according to different groups of singers (e.g. 50 singers with different ranges).

Claims

1. A method for adjusting accompaniment music of song, used in an electronic device for adjusting accompaniment music of song, in order to adjust the high and low frequency of multiple accompaniment music pieces of song, each accompaniment music piece of song corresponds to each original song person's vocal piece, wherein will carry on the said method when a singer's vocal range is smaller than a total original song person's vocal range of the song, the said method comprises:

comparing the vocal range of the singer with the vocal segments of the original singers to judge whether the vocal range of the singer covers the vocal segments of the original singers; and

2. The method of claim 1, wherein at least two accompaniment music pieces are transposed, and the degrees of the transposition of the two accompaniment music pieces are different.

3. The method of claim 2, wherein the plurality of accompaniment tracks are m tracks in number and are time-divided into n sets of accompaniment track transpositions, each set of accompaniment track transpositions having y accompaniment tracks, wherein:

the order of the tone-shifted segments of the song accompaniment tones of each group is the same; and

5≦m≦1000，3≦n≦m-2，1≦y≦500。

4. the method of claim 3, further comprising finding a minimum n.

5. The method for adjusting accompaniment music to a song according to claim 3, wherein each original song has its lyrics segmented into each lyric.

6. The method of claim 3, further comprising the step of obtaining the range of the singer.

7. An electronic device for adjusting accompaniment sound of a song is used for adjusting the high and low frequencies of a plurality of accompaniment sound segments of the song, each accompaniment sound segment of the song corresponds to a sound segment of a person who originally sings the song, the electronic device comprises a processor and a memory, the memory comprises a software program, when a sound field of a singer is smaller than a total sound field of the original song of the song, the electronic device can execute the software program to carry out:

8. The electronic device for adjusting accompaniment music according to claim 7, wherein at least two accompaniment music pieces are transposed, and the degrees of transposition of the accompaniment music pieces are different.

9. The electronic device for adjusting accompaniment music according to claim 8, wherein the plurality of accompaniment music pieces has a number of m pieces and is divided into n sets of accompaniment music pieces according to time, each set of accompaniment music pieces has y pieces, wherein:

the 'order' of each group of the melody accompaniment sound transposition segments is the same; and

5≦m≦1000，3≦n≦m-2，1≦y≦500。

10. the electronic device for adjusting accompaniment music according to claim 9, wherein the electronic device further comprises a minimum n.

11. The electronic device for adjusting accompaniment to a song according to claim 9, wherein each original song has a lyric of each lyric as a segment.

12. The electronic device for adjusting accompaniment music according to claim 9, further comprising a step of obtaining the range of the singer.