Title:
MUSICAL SOUND GENERATING DEVICE AND STORAGE MEDIUM
Document Type and Number:
Japanese Patent JP3541718
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To generate a musical sound having the number of channels more than those limited by the slow data transfer speed of a storage device according to waveform data stored in the storage device.
SOLUTION: When a cache hit of waveform data whose sound generation is indicated is detected, a musical sound is generated by using waveform data held in a cache memory 11 and when a cache miss of the waveform data whose sound generation is indicated is detected, the waveform data regarding the sound generation indication are read out of a waveform memory 10 and transferred to the cache memory 11, so that a musical sound is generated by using the transferred waveform data. Further, when timbre switching is indicated, whether or not waveform data used preferentially for the switching-indicated timbre are held in the cache memory 11 is detected and when the waveform data are not held in the cache memory 11, the waveform data are read out of the waveform memory 10 and transferred to the cache memory 11.
Inventors:
Masatsugu Okazaki
Application Number:
JP7952399A
Publication Date:
July 14, 2004
Filing Date:
March 24, 1999
Export Citation:
Assignee:
Yamaha Corporation
International Classes:
G06F12/08; G10H7/02; (IPC1-7): G10H7/02; G06F12/08
Domestic Patent References:
| JP9026791A | ||||
| JP5019766A | ||||
| JP4348396A | ||||
| JP6295263A | ||||
| JP9114457A | ||||
| JP52027621A | ||||
| JP7302083A | ||||
| JP2137893A |
Attorney, Agent or Firm:
Toshihiko Watanabe