CN101916240B - 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 PDFInfo
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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
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, in melody, add the lyrics again and accomplish musical composition; Also can write a song earlier, make the melody that adapts according to the lyrics again.Yet for the ordinary people, melody that he likes himself according to lyrics creation and music are very difficult, and the very difficult wish of accomplishing common user is difficult to exchange and appreciates and interaction.
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 high to the requirement of computing machine and system, needs dedicated system equipment and uses complicacy, and 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 said 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 the weights to equate in the vector;
D, calculating pitch probability vector are according to said digitizing melody; When sometime the corresponding positions of the corresponding said digitizing melody of element in the said 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, said pitch probability vector and said time probability vector are carried out normalization calculate;
F, computing time distribute, and the time that obtains new melody note according to said melody note quantity parameter distributes;
G, calculating pitch distributions are according to said pitch probability vector being handled the pitch distributions that obtains new melody note;
H, according to said melody fluctuations extent index adjustment pitch distributions;
I, connect the tightness degree parameter adjustment time according to said 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 said 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 into 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 said 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 said 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; Said adjacent note connects the tightness degree parameter and representes 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 said 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 said 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 said pitch probability vector and said 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 said 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 said 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.
According to said melody fluctuations extent index adjustment pitch distributions is that the pitch in the pitch distributions of new melody note is compared with the pitch of the corresponding note of said digitizing melody; With the pitch of difference, adopt the roulette algorithm to recomputate the pitch distributions that makes new advances again greater than said 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 said adjacent note is to connect the tightness degree calculation of parameter according to said 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's adjacent note that is obtained by the lyrics capable of using connects 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 said 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 converts the lyrics of user's input into the textual form of representation in the computing machine; Number of words according to lyrics text calculates melody note quantity parameter then; Said 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 said lyrics text with the Chinese word segmentation algorithm; Obtain adjacent note and connect the tightness degree parameter; Said adjacent note connects the tightness degree parameter and representes 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 said 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 said 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 said time probability vector is generated corresponding pitch probability vector, and the length of each pitch probability vector is N, and its N value comprises 9,10,11,12,13,14,15,16,17,18,19,20,21,22,23 greater than 8; 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 the weights to equate in the vector;
D, calculating pitch probability vector;
Described calculating pitch probability vector is according to said digitizing melody; When sometime the corresponding positions of the corresponding known melody of element in the said 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 said 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 said 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 said digitizing melody; With the pitch of difference, adopt the roulette algorithm to recomputate the pitch distributions that makes new advances again greater than said fluctuations extent index.
I, adjustment time distribute;
It is to connect the tightness degree calculation of parameter according to said 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 like animation, recreation, internet music service, a plurality of applications such as mobile phone.
Claims (4)
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; It is the textual form that the lyrics of user's input is converted into 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 said melody note quantity parameter is a quantity interval value;
It is with the Chinese word segmentation algorithm said 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; Said adjacent note connects the tightness degree parameter and representes 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 said 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; The method of described rise time probability vector is according to said 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 said 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;
C, initialization time probability vector and pitch probability vector, be that each element is composed the weights to equate in the vector;
D, calculating pitch probability vector; According to said digitizing melody; When sometime the corresponding positions of the corresponding said digitizing melody of element in the said 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, said pitch probability vector and said time probability vector are carried out normalization calculate;
F, computing time distribute, and the time that obtains new melody note according to said melody note quantity parameter distributes; The method that distribute described computing time is to adopt the said 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 said pitch probability vector of roulette algorithm process, obtains the pitch distributions of new melody note;
G, calculating pitch distributions are according to said pitch probability vector being handled the pitch distributions that obtains new melody note;
H, according to said melody fluctuations extent index adjustment pitch distributions; According to said melody fluctuations extent index adjustment pitch distributions is that the pitch in the pitch distributions of new melody note is compared with the pitch of the corresponding note of said digitizing melody; With the pitch of difference, adopt the roulette algorithm to recomputate the pitch distributions that makes new advances again greater than said melody fluctuations extent index;
I, connect the tightness degree parameter adjustment time according to said adjacent note and distribute; The method that connects the distribution of tightness degree parameter adjustment time according to said adjacent note is to connect the tightness degree calculation of parameter according to said 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;
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 said 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 2 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.
4. 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 said pitch probability vector and said 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.
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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 |
| CN104485101B (en) * | 2014-11-19 | 2018-04-27 | 成都云创新科技有限公司 | A kind of method that music rhythm is automatically generated based on template |
| CN108806656B (en) * | 2017-04-26 | 2022-01-28 | 微软技术许可有限责任公司 | Automatic generation of songs |
| CN110555126B (en) | 2018-06-01 | 2023-06-27 | 微软技术许可有限责任公司 | Automatic generation of melodies |
| CN109448697B (en) * | 2018-10-08 | 2023-06-02 | 平安科技（深圳）有限公司 | Poem melody generation method, electronic device and computer readable storage medium |
| 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 |
| 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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| CN101203904A (en) * | 2005-04-18 | 2008-06-18 | Lg电子株式会社 | Operating method of a music composing device |
| CN101471074A (en) * | 2007-12-28 | 2009-07-01 | 英华达（南京）科技有限公司 | Method for converting voice into music of electronic device |
| CN101800046B (en) * | 2010-01-11 | 2014-08-20 | 北京中星微电子有限公司 | Method and device for generating MIDI music according to notes |
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