CN101916240A - Method for generating new musical melody based on known lyric and musical melody - Google Patents

Method for generating new musical melody based on known lyric and musical melody Download PDF

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Publication number
CN101916240A
CN101916240A CN 201010221674 CN201010221674A CN101916240A CN 101916240 A CN101916240 A CN 101916240A CN 201010221674 CN201010221674 CN 201010221674 CN 201010221674 A CN201010221674 A CN 201010221674A CN 101916240 A CN101916240 A CN 101916240A
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melody
pitch
note
probability vector
time
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CN101916240B (en
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关胤
陈宏展
吴拥民
柳晖
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Baidu com Times Technology Beijing Co Ltd
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Fujian Tianqing Online Interactive Technology Co Ltd
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Abstract

The invention discloses a method for generating a new musical melody based on known lyric and a known musical melody. The method comprises the following steps of: inputting data; pre-processing the input data; generating a time probability vector; matrixing the time probability vector to obtain a pitch probability vector; initializing; calculating the pitch probability vector; normalizing; calculating time distribution; calculating pitch distribution; adjusting the pitch distribution; adjusting the time distribution; outputting the new melody and the like. The method disclosed by the invention is suitable for the conventional popular and simple system device; by using the conventional popular system device, the new musical melody corresponding to the lyric can be automatically generated; and thus a normal user can quickly and conveniently create the favorite melody and music, more people can conveniently participate in the interactive communication and the development of digital music can be further promoted.

Description

A kind of method based on known lyric and generating new musical melody music rhythm
Technical field the present invention relates to music rhythm creation field, relates in particular to a kind of method based on known lyric and generating new musical melody music rhythm.
The background technology digital music is meant the general designation of carrying out a series of processes such as musical composition, editor, storage, propagation with digital form, it mainly relies on computing machine is that operational processes is carried out to music in the center, digital music can transmit with internet and wireless network, download, online test listening, appreciation etc., convenient more people participates in interaction, has excited people more to create wish.
Melody is the fundamental that constitutes music, and melody can show music expression and human emotion effectively.People can cross the creation melody earlier, add the lyrics again and finish musical composition in melody; Also can write a song earlier, make the melody that adapts according to the lyrics again.Yet for the ordinary people, creating melody that he likes himself and music according to the lyrics is unusual difficulty, is difficult to finish common user's wish, is difficult to exchange and appreciates with interactive.
Continuous development along with digital music and computer-related technologies, increasing people wants to utilize the automatic art music of computer technology, the system and method that the automatic art musics of some computing machines also occurred at present, but existing technical scheme is to the requirement height of computing machine and system, need dedicated system equipment and use complexity, common user is difficult to accept use.
Summary of the invention the object of the invention provides a kind of method based on known lyric and generating new musical melody music rhythm, make the melody and the music of the creation oneself that common user can be quick and easy, convenient more people participates in interaction, further promotes the development of digital music.
To achieve these goals, the present invention includes following steps:
A, user are input to the melody generation system with the lyrics, melody fluctuations extent index, and this melody generation system obtains melody note quantity parameter with lyrics processing and is connected the tightness degree parameter with adjacent note, and known melody processing is obtained the digitizing melody;
B, according to described digitizing melody, every bat melody of this digitizing melody is handled the rise time probability vector, matrixing time probability vector obtains the pitch probability vector;
C, initialization time probability vector and pitch probability vector, be that each element is composed weights to equate in the vector;
D, calculating pitch probability vector are according to described digitizing melody, when sometime the corresponding positions of the corresponding described digitizing melody of element in the described time probability vector is equipped with note, increase the weights of element corresponding in the pitch probability vector, when this note is relevant with the trifle chord, increase the weights of element corresponding in the pitch probability vector again, increase the weights of adjacent element in the pitch probability vector at last;
E, described pitch probability vector and described time probability vector are carried out normalization calculate;
F, computing time distribute, and the time that obtains new melody note according to described melody note quantity parameter distributes;
G, calculating pitch distributions are according to described pitch probability vector being handled the pitch distributions that obtains new melody note;
H, adjust pitch distributions according to described melody fluctuations extent index;
I, connect the tightness degree parameter adjustment time according to described adjacent note and distribute;
J, export new melody.
The present invention can be according to the music rhythm of known lyric and generating new musical melody.
The melody of described known melody for storing in the melody of user input or the melody generation system.Therefore, the user can import melody voluntarily and also can select the melody stored in the melody generation system.
It is the textual form that the lyrics of user's input is converted to representation in the computing machine that described melody generation system is handled the method that obtains melody note quantity parameter with the lyrics, number of words according to lyrics text calculates melody note quantity parameter then, and described melody note quantity parameter is a quantity interval value.The present invention utilizes this method can obtain melody note quantity parameter, and the time of utilizing this parameter can obtain new melody note distributes.
It is with the Chinese word segmentation algorithm described lyrics text to be handled that described melody generation system is handled the method that obtains adjacent note connection tightness degree parameter with the lyrics, obtain adjacent note and connect the tightness degree parameter, described adjacent note connects the tightness degree parameter and represents with discrete value 0,1, when corresponding adjacent lyric characters belongs to same word or phrase, be 1 promptly, otherwise then be 0.The present invention utilizes this method can obtain adjacent note connection tightness degree parameter, utilizes this parameter value to distribute the adjustment time.
The method of described rise time probability vector is according to described digitizing melody data, and every bat melody evenly is divided into N unit, wherein N=3 n-2 m, n=0,1,2,3,4,5,6,7,8,9 or ∈ [10, ∞), m=0,1,2,3,4,5,6,7,8,9 or ∈ [10, ∞);
The method of described matrixing time probability vector is that each element in the described time probability vector is generated corresponding pitch probability vector, and the length of each pitch probability vector is N, and its N value is greater than 8.The present invention utilizes this method can obtain time probability vector sum pitch probability vector.
It is all pitch probability vectors to be carried out normalization calculate that described pitch probability vector and described time probability vector are carried out the normalization Calculation Method, makes that total value is 1, all time probability vectors is carried out normalization calculate, and makes that total value is 1.The present invention normalizes to 1 to all pitch probability vectors and time probability vector, and is easy and can improve counting yield.
The method that distribute described computing time is to adopt the described melody note of roulette algorithm process quantity parameter, and the time that obtains new melody note distributes; The method of described calculating pitch distributions is to adopt the described pitch probability vector of roulette algorithm process, obtains the pitch distributions of new melody note.The present invention utilizes the roulette algorithm, has improved counting yield.
Adjusting pitch distributions according to described melody fluctuations extent index is that the pitch in the pitch distributions of new melody note is compared with the pitch of the corresponding note of described digitizing melody, with the pitch of difference, adopt the roulette algorithm to recomputate the pitch distributions that makes new advances again greater than described melody fluctuations extent index.Therefore, the present invention can readjust new pitch distributions according to the melody fluctuations extent index of user's input, further reaches the purpose with user's exchange and interdynamic.
The method that connects the distribution of tightness degree parameter adjustment time according to described adjacent note is to connect the tightness degree calculation of parameter according to described adjacent note, when its parameter is 1, time gap during the time of dwindling new melody note distributes, when parameter is 0, the time gap during the time of amplifying new melody note distributes.Therefore, the present invention can utilize the adjacent note that is obtained by the lyrics to connect the time distribution that the tightness degree parameter is adjusted new melody, has guaranteed the coupling of the new melody and the lyrics.
The invention has the beneficial effects as follows: method provided by the invention is applicable to existing popular, comparatively easy system equipment, utilize existing popular system equipment just can generate the new music rhythm corresponding automatically with the lyrics, melody and music that creation oneself that common user can be quick and easy is liked, convenient more people participates in interaction, further promotes the development of digital music.
Embodiment the present invention includes following steps:
A, user are input to the melody generation system with the lyrics, fluctuations extent index, and this melody generation system obtains melody note quantity parameter with lyrics processing and is connected the tightness degree parameter with adjacent note, and known melody processing is obtained the digitizing melody;
The melody of described known melody for storing in the melody of user input or the melody generation system, the melody of input is the music score of Chinese operas form of symbolism, also can be the MIDI file;
Described melody generation system is converted to the lyrics of user's input the textual form of representation in the computing machine, number of words according to lyrics text calculates melody note quantity parameter then, described melody note quantity parameter is a quantity interval value, it is limited to down sum of lyrics text number of words, on be limited to 16 times of lyrics text number of words sum;
Described melody generation system is handled described lyrics text with the Chinese word segmentation algorithm, obtain adjacent note and connect the tightness degree parameter, described adjacent note connects the tightness degree parameter and represents with discrete value 0,1, when corresponding adjacent lyric characters belongs to same word or phrase, be 1 promptly, otherwise then be 0.
B, according to described digitizing melody, every bat melody of this digitizing melody is handled the rise time probability vector, matrixing time probability vector obtains the pitch probability vector; Described rise time probability vector is according to described digitizing melody data, every bat melody evenly is divided into N unit, wherein
N=3 n-2 m, n=0,1,2,3,4,5,6,7,8,9 or ∈ [10, ∞), m=0,1,2,3,4,5,6,7,8,9 or ∈ [10, ∞);
Described matrixing time probability vector is that each element in the described time probability vector is generated corresponding pitch probability vector, and the length of each pitch probability vector is N, and its N value comprises 9,10,11,12,13,14 greater than 8,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128.
C, initialization time probability vector and pitch probability vector, be that each element is composed weights to equate in the vector;
D, calculating pitch probability vector;
Described calculating pitch probability vector is according to described digitizing melody, when sometime the corresponding positions of the corresponding known melody of element in the described time probability vector is equipped with note, increase the weights of element corresponding in the pitch probability vector, when this note is relevant with the trifle chord, increase the weights of element corresponding in the pitch probability vector again, increase the weights of adjacent element in the pitch probability vector at last.
E, normalization are calculated;
Described normalization Calculation Method is all pitch probability vectors to be carried out normalization calculate, and makes that total value is 1, all time probability vectors is carried out normalization calculate, and makes that total value is 1.
F, computing time distribute;
Distributing described computing time is to adopt the described melody note of roulette algorithm process quantity parameter, and the time that obtains new melody note distributes.
G, calculating pitch distributions;
Described calculating pitch distributions is to adopt the described pitch probability vector of roulette algorithm process, obtains the pitch distributions of new each note of melody.
H, adjustment pitch distributions;
Described adjustment pitch distributions is that the pitch in the pitch distributions of new each note of melody is compared with the pitch of the corresponding note of described digitizing melody, with the pitch of difference, adopt the roulette algorithm to recomputate the pitch distributions that makes new advances again greater than described fluctuations extent index.
I, adjustment time distribute;
It is to connect the tightness degree calculation of parameter according to described adjacent note that described adjustment time distributes, when its parameter is 1, and the time gap during the time of dwindling new melody note distributes, when parameter is 0, the time gap during the time of amplifying new melody note distributes.
J, export new melody.
Method of the present invention can be applicable to as animation, recreation, internet music service, a plurality of applications such as mobile phone.

Claims (9)

1. method based on known lyric and generating new musical melody music rhythm is characterized in that: may further comprise the steps:
A, user are input to the melody generation system with the lyrics, melody fluctuations extent index, and this melody generation system obtains melody note quantity parameter with lyrics processing and is connected the tightness degree parameter with adjacent note, and known melody processing is obtained the digitizing melody;
B, according to described digitizing melody, every bat melody of this digitizing melody is handled the rise time probability vector, matrixing time probability vector obtains the pitch probability vector;
C, initialization time probability vector and pitch probability vector, be that each element is composed weights to equate in the vector;
D, calculating pitch probability vector, according to described digitizing melody, when sometime the corresponding positions of the corresponding described digitizing melody of element in the described time probability vector is equipped with note, increase the weights of element corresponding in the pitch probability vector, when this note is relevant with the trifle chord, increase the weights of element corresponding in the pitch probability vector again, increase the weights of adjacent element in the pitch probability vector at last;
E, described pitch probability vector and described time probability vector are carried out normalization calculate;
F, computing time distribute, and the time that obtains new melody note according to described melody note quantity parameter distributes;
G, calculating pitch distributions are according to described pitch probability vector being handled the pitch distributions that obtains new melody note;
H, adjust pitch distributions according to described melody fluctuations extent index;
I, connect the tightness degree parameter adjustment time according to described adjacent note and distribute;
J, export new melody.
2. a kind of method based on known lyric and generating new musical melody music rhythm according to claim 1 is characterized in that: the melody of described known melody for storing in the melody of user input or the melody generation system.
3. a kind of method based on known lyric and generating new musical melody music rhythm according to claim 1 and 2 is characterized in that:
It is the textual form that the lyrics of user's input is converted to representation in the computing machine that described melody generation system is handled the method that obtains melody note quantity parameter with the lyrics, number of words according to lyrics text calculates melody note quantity parameter then, and described melody note quantity parameter is a quantity interval value;
It is with the Chinese word segmentation algorithm described lyrics text to be handled that described melody generation system is handled the method that obtains adjacent note connection tightness degree parameter with the lyrics, obtain adjacent note and connect the tightness degree parameter, described adjacent note connects the tightness degree parameter and represents with discrete value 0,1, when corresponding adjacent lyric characters belongs to same word or phrase, be 1 promptly, otherwise then be 0.
4. a kind of method based on known lyric and generating new musical melody music rhythm according to claim 3 is characterized in that: be limited to the sum of lyrics text number of words under the described melody note quantity parameter, on be limited to 16 times of lyrics text number of words sum.
5. a kind of method according to claim 1 and 2 based on known lyric and generating new musical melody music rhythm, it is characterized in that: the method for described rise time probability vector is according to described digitizing melody data, every bat melody evenly is divided into N unit, wherein
N=3 n-2 m, n=0,1,2,3,4,5,6,7,8,9 or ∈ [10, ∞), m=0,1,2,3,4,5,6,7,8,9 or ∈ [10, ∞);
The method of described matrixing time probability vector is that each element in the described time probability vector is generated corresponding pitch probability vector, and the length of each pitch probability vector is N, and its N value is greater than 8.
6. a kind of method according to claim 1 and 2 based on known lyric and generating new musical melody music rhythm, it is characterized in that: it is all pitch probability vectors to be carried out normalization calculate that described pitch probability vector and described time probability vector are carried out the normalization Calculation Method, make that total value is 1, all time probability vectors are carried out normalization calculate, make that total value is 1.
7. a kind of method according to claim 1 and 2 based on known lyric and generating new musical melody music rhythm, it is characterized in that: the method that distribute described computing time is to adopt the described melody note of roulette algorithm process quantity parameter, and the time that obtains new melody note distributes; The method of described calculating pitch distributions is to adopt the described pitch probability vector of roulette algorithm process, obtains the pitch distributions of new melody note.
8. a kind of method according to claim 1 and 2 based on known lyric and generating new musical melody music rhythm, it is characterized in that: adjusting pitch distributions according to described melody fluctuations extent index is that the pitch in the pitch distributions of new melody note is compared with the pitch of the corresponding note of described digitizing melody, with the pitch of difference, adopt the roulette algorithm to recomputate the pitch distributions that makes new advances again greater than described melody fluctuations extent index.
9. a kind of method according to claim 1 and 2 based on known lyric and generating new musical melody music rhythm, it is characterized in that: the method that connects the distribution of tightness degree parameter adjustment time according to described adjacent note is to connect the tightness degree calculation of parameter according to described adjacent note, when its parameter is 1, time gap during the time of dwindling new melody note distributes, when parameter is 0, the time gap during the time of amplifying new melody note distributes.
CN2010102216746A 2010-07-08 2010-07-08 Method for generating new musical melody based on known lyric and musical melody Active CN101916240B (en)

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CN108806656A (en) * 2017-04-26 2018-11-13 微软技术许可有限责任公司 Song automatically generates
CN109448697A (en) * 2018-10-08 2019-03-08 平安科技(深圳)有限公司 Poem melody generation method, electronic device and computer readable storage medium
CN109859739A (en) * 2019-01-04 2019-06-07 平安科技(深圳)有限公司 Melody generation method, device and terminal device based on speech synthesis
CN110555126A (en) * 2018-06-01 2019-12-10 微软技术许可有限责任公司 Automatic generation of melodies
CN112699269A (en) * 2020-12-30 2021-04-23 北京达佳互联信息技术有限公司 Lyric display method, device, electronic equipment and computer readable storage medium
CN113436591A (en) * 2021-06-24 2021-09-24 广州酷狗计算机科技有限公司 Pitch information generation method and device, computer equipment and storage medium

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CN102374201A (en) * 2011-10-25 2012-03-14 哈尔滨汇隆汽车箱桥有限公司 Double-row rare earth continuous gas carburizing furnace direct attached side fan
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CN109448697A (en) * 2018-10-08 2019-03-08 平安科技(深圳)有限公司 Poem melody generation method, electronic device and computer readable storage medium
CN109859739A (en) * 2019-01-04 2019-06-07 平安科技(深圳)有限公司 Melody generation method, device and terminal device based on speech synthesis
CN109859739B (en) * 2019-01-04 2023-12-22 平安科技(深圳)有限公司 Melody generation method and device based on voice synthesis and terminal equipment
CN112699269A (en) * 2020-12-30 2021-04-23 北京达佳互联信息技术有限公司 Lyric display method, device, electronic equipment and computer readable storage medium
CN113436591A (en) * 2021-06-24 2021-09-24 广州酷狗计算机科技有限公司 Pitch information generation method and device, computer equipment and storage medium
CN113436591B (en) * 2021-06-24 2023-11-17 广州酷狗计算机科技有限公司 Pitch information generation method, device, computer equipment and storage medium

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