Music piece creation apparatus and method

• US 20090013855A1
• Filed: 07/11/2008
• Published: 01/15/2009
• Est. Priority Date: 07/13/2007
• Status: Active Grant

• Current Assignee: Yamaha Corporation
• Original Assignee: Yamaha Corporation
• Inventors: Sugii, Kiyohisa, Fujishima, Takuya, Kojima, Naoaki
• Granted Patent: US 7,728,212 B2
• Time in Patent Office: Days
• US Class Current: 84/604
• CPC Class Codes: G10H 1/0025 Automatic or semi-automatic music composition, e.g. producing random music, applying rules from music theory or modifying a musical piece automatically producing a series of tones G10H1/26
• CPC Class Codes: G10H 2210/125 Medley, i.e. linking parts of different musical pieces in one single piece, e.g. sound collage, DJ mix
• CPC Class Codes: G10H 2220/101 for graphical creation, edition or control of musical data or parameters
• CPC Class Codes: G10H 2250/455 Gensound singing voices, i.e. generation of human voices for musical applications, vocal singing sounds or intelligible words at a desired pitch or with desired vocal effects, e.g. by phoneme synthesis formant synthesis G10H2250/481; parcor synthesis G10H2250/505; modulation effects G10H2210/195; ensemble effects G10H2210/245; speech synthesis in general G10L13/00
• CPC Class Codes: G10L 13/00 Speech synthesis; Text to speech systems

Abstract

Music piece data composed of audio waveform data are stored in a memory. Analysis section analyzes the music piece data stored in the memory to determine sudden change points of sound condition in the music piece data. Display device displays individual phoneme component data, obtained by dividing the music piece data at the sudden change points, in a menu format having the phoneme component data arranged therein in order of their complexity. Through user'"'"'s operation via an operation section, desired phoneme component data is selected from the menu displayed on the display device, and a time-axial position where the selected phoneme component data is to be positioned is designated. New music piece data set is created by each user-selected phoneme component data being positioned at a user-designated time-axial position.

Claims

1. A music piece creation apparatus comprising:

a storage section that stores music piece data composed of audio waveform data;

an analysis section that analyzes the music piece data stored in said storage section to determine sudden change points of sound condition in the music piece data;

a display device;

a display control section that causes said display device to display individual phoneme component data, obtained by dividing at the sudden change points the music piece data stored in said storage section, in a menu format having the phoneme component data arranged therein in order of complexity;

an operation section operable by a user, said operation section accepting user'"'"'s operation for selecting desired phoneme component data from the menu displayed on said display device and user'"'"'s operation for designating a time-axial position where the selected phoneme component data is to be positioned; and

a synthesis section that synthesizes new music piece data by positioning each phoneme component data, selected from the menu through user'"'"'s operation via said operation section, at a time-axial position designated through user'"'"'s operation via said operation section.

2. The music piece creation apparatus as claimed in claim 1 wherein said analysis section determines a musical characteristic of each of the phoneme component data obtained by dividing at the sudden change points the music piece data stored in said storage section, and said display control section causes said display device to display marks indicative of the musical characteristics of the individual phoneme component data along with the menu of the individual phoneme component data.

3. The music piece creation apparatus as claimed in claim 1 wherein said analysis section determines a plurality of types of the sudden change points differing from each other in level of importance,

the user is allowed to designate a desired level of importance of the sudden change point by operating said operation section, and

said display control section divides the music piece data at the sudden change points corresponding to the level of importance designated through user'"'"'s operation via said operation section.

4. The music piece creation apparatus as claimed in claim 1 wherein said analysis section determines a plurality of types of the sudden change points differing from each other in level of importance, and said display control section divides the music piece data into a plurality of the phoneme component data at the sudden change points corresponding to a first level of importance, and

wherein, when one of the phoneme component data is selected, through operation via said operation section, from the menu displayed on said display device, said display control section divides the selected phoneme component data into a plurality of further phoneme component data at the sudden change points corresponding to a second level of importance and causes said display device to display a menu of the divided further phoneme component data.

5. The music piece creation apparatus as claimed in claim 1 wherein the sudden change points of sound condition determined by said analysis section are each a sudden change point pertaining to at least one of band frequency components, tone volume and other tone factor.

6. The music piece creation apparatus as claimed in claim 1 wherein said analysis section further analyzes a musical characteristic of each of the phoneme component data obtained by dividing at the sudden change points the music piece data stored in said storage section, and

wherein, when causing said display device to display the individual phoneme component data, obtained by dividing the music piece data at the sudden change points, in the menu format having the phoneme component data arranged therein in order of complexity, said display control section displays, in the menu, icons indicative of the musical characteristics of the individual phoneme component data analyzed by said analysis section.

7. The music piece creation apparatus as claimed in claim 1 wherein said analysis section further analyzes complexity of each of the phoneme component data obtained by dividing at the sudden change points the music piece data stored in said storage section, to thereby generate indices indicative of the analyzed complexity of the individual phoneme component data, and

wherein said display control section arranges the individual phoneme component data, obtained by dividing at the sudden change points the music piece data stored in said storage section, in the order of complexity on the basis of the indices indicative of the analyzed complexity of the phoneme component data.

8. The music piece creation apparatus as claimed in claim 7 wherein said complexity is determined on the basis of spectral variation of the phoneme component data.

9. A computer-implemented method for creating a music piece, comprising:

a step of analyzing music piece data stored in a memory storing music piece data composed of audio waveform data, to thereby determine a sudden change points of sound condition in the music piece data;

a step of causing a display device to display individual phoneme component data, obtained by dividing at the sudden change points the music piece data stored in the memory, in a menu format having the phoneme component data arranged therein in order of complexity;

a step of accepting user'"'"'s operation for selecting desired phoneme component data from the menu displayed on the display device;

a step of accepting user'"'"'s operation for designating a time-axial position where the selected phoneme component data is to be positioned; and

a step of synthesizing new music piece data by positioning each phoneme component data, selected by the user, at a time-axial position designated by the user.

10. A computer-readable medium containing a group of instructions for causing a processor to perform a music piece creation procedure, said music piece creation procedure comprising:

a step of analyzing music piece data stored in a memory storing music piece data composed of audio waveform data, to thereby determine a sudden change points of sound condition in the music piece data;

a step of causing a display device to display individual phoneme component data, obtained by dividing at the sudden change points the music piece data stored in the memory, in a menu format having the phoneme component data arranged therein in order of complexity;

a step of accepting user'"'"'s operation for selecting desired phoneme component data from the menu displayed on the display device;

a step of accepting user'"'"'s operation for designating a time-axial position where the selected phoneme component data is to be positioned; and

a step of synthesizing new music piece data by positioning each phoneme component data, selected by the user, at a time-axial position designated by the user.