Method of mapping waveforms to timbres in generation of musical forms

A method of operating a tone generator for generating a music tone in response to performance information by a desired timbre with using a mapping file defining a set of timbres and mapping a plurality of waveforms to the set of timbres, the mapping file being composed of a set of information blocks corresponding to the set of the timbres, the information block containing specification information for specifying waveforms associated to the corresponding timbre, and selection information for selecting one or more of the specified waveforms according to the performance information to map the selected waveform to the timbre, the method comprising the steps of:

• sequentially feeding the performance information to the tone generator;
• loading a first mapping file and a second mapping file to the tone generator, the first mapping file defining a first set of timbres and containing a plurality of waveforms originally mapped to the first set of timbres, the second mapping file defining a second set of timbres and containing attribute information for linking the second mapping file to the first mapping file to enable mapping of the waveforms contained in the first mapping file to the second set of the timbres, such that the second mapping file may involve an information block containing specification information for specifying waveforms contained in the first mapping file;
• reading an information block of the second mapping file corresponding to the desired timbre and containing specification information for specifying waveforms contained in the first mapping file;
• selecting one or more of the specified waveforms according to the performance information to thereby map the selected waveform to the desired timbre;
• and
• processing the mapped waveform to generate a music tone having the desired timbre.

A method of operating a tone generator for generating a music tone in response to performance information by a desired timbre with using a mapping file defining a set of timbres and mapping a plurality of waveforms to the set of timbres, the mapping file being composed of a set of information blocks corresponding to the set of the timbres, the information block containing specification information for specifying waveforms associated to the corresponding timbre, and selection information for selecting one or more of the specified waveforms according to the performance information to map the selected waveform to the timbre, the method comprising the steps of:

• sequentially feeding the performance information to the tone generator;
• loading a first mapping file, a second mapping file and a third mapping file to the tone generator, the first mapping file defining a first set of timbres, the second mapping file defining a second set of timbres, the third mapping file defining a third set of timbres and containing attribute information for linking the third mapping file to both of the first mapping file and the second mapping file, thereby combining the first set of timbres and the second set of timbres to synthesize the third set of timbres, such that the third mapping file involves an information block containing specification information for specifying information blocks contained in the first and second mapping files to indirectly specify waveforms;
• reading an information block of the third mapping file corresponding to the desired timbre and containing specification information for specifying information blocks contained in the first and second mapping files to indirectly specify waveforms;
• selecting one or more of the specified waveforms according to the performance information to thereby map the selected waveform to the desired timbre;
• and
• processing the mapped waveform to generate a music tone having the desired timbre.

A machine readable medium for use in a music apparatus having a CPU for generating a music tone in response to performance information by a desired timbre with using a mapping file defining a set of timbres and mapping a plurality of waveforms to the set of timbres, the mapping file being composed of a set of information blocks corresponding to the set of the timbres, the information block containing specification information for specifying waveforms associated to the corresponding timbre, and selection information for selecting one or more of the specified waveforms according to the performance information to map the selected waveform to the timbre, the medium containing program instructions executable by the CPU for causing the music apparatus to perform a method comprising the steps of:

• sequentially providing the performance information;
• loading a first mapping file and a second mapping file, the first mapping file defining a first set of timbres and containing a plurality of waveforms originally mapped to the first set of timbres, the second mapping file defining a second set of timbres and containing attribute information for linking the second mapping file to the first mapping file to enable mapping of the waveforms contained in the first mapping file to the second set of the timbres, such that the second mapping file may involve an information block containing specification information for specifying waveforms contained in the first mapping file;
• reading an information block of the second mapping file corresponding to the desired timbre and containing specification information for specifying waveforms contained in the first mapping file;
• selecting one or more of the specified waveforms according to the provided performance information to thereby map the selected waveform to the desired timbre;
• and
• processing the mapped waveform to generate a music tone having the desired timbre.

A machine readable medium for use in a music apparatus having a CPU for generating a music tone in response to performance information by a desired timbre with using a mapping file defining a set of timbres and mapping a plurality of waveforms to the set of timbres, the mapping file being composed of a set of information blocks corresponding to the set of the timbres, the information block containing specification information for specifying waveforms associated to the corresponding timbre, and selection information for selecting one or more of the specified waveforms according to the performance information to map the selected waveform to the timbre, the medium containing program instructions executable by the CPU for causing the music apparatus to perform a method comprising the steps of:

• sequentially providing the performance information;
• loading a first mapping file, a second mapping file and a third mapping file, the first mapping file defining a first set of timbres, the second mapping file defining a second set of timbres, the third mapping file defining a third set of timbres and containing attribute information for linking the third mapping file to both of the first mapping file and the second mapping file, thereby combining the first set of timbres and the second set of timbres to synthesize the third set of timbres, such that the third mapping file involves an information block containing specification information for specifying information blocks contained in the first and second mapping files to indirectly specify waveforms;
• reading an information block of the third mapping file corresponding to the desired timbre and containing specification information for specifying information blocks contained in the first and second mapping files to indirectly specify waveforms;
• selecting one or more of the specified waveforms according to the provided performance information to thereby map the selected waveform to the desired timbre;
• and
• processing the mapped waveform to generate a music tone having the desired timbre.