Waveform generating device

Details Waveform generating device Waveform generating device

2004-04-09

2008-07-08

Donels, Jeffrey (Department: 2837)

Music

Instruments

Electrical musical tone generation

C084S612000

Reexamination Certificate

active

07396989

ABSTRACT:
To compose a series of musical tones, a waveform generating device reads out a plurality of time axis segments of waveform data in optional order by compressing or expanding the segments of waveform data in conformance with performance data. With the waveform generating device of the present invention, first performance data are updated in conformance with tempo alterations of second performance data. Based on the updating, a time compression and expansion percentage of each waveform data segment is derived. In those cases where there have been performance tempo alterations, the waveform data can be generated in conformance with the tempo alterations.

REFERENCES:
patent: 5973255 (1999-10-01), Tanji
patent: 6169240 (2001-01-01), Suzuki
patent: 6403871 (2002-06-01), Shimizu et al.
patent: 2001/0025560 (2001-10-01), Sato

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