Title:
MUSICAL SOUND REPRODUCING DEVICE AND PORTABLE TERMINAL DEVICE
Document Type and Number:
Japanese Patent JP3642039
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To shorten the time spent for timbre variation processing even when timbre parameters are stored in a general purpose storage means.
SOLUTION: A CPU 10 registers a timbre parameter group consisting of an arbitrary number of parameters read out of a RAM 11 in a sound source memory 30 as a general memory. Timbre parameters that a sound source core 33 requires when reproducing a musical sound are stored in a cache memory 32 for all channels. When the CPU 10 gives a timbre change instruction to a control part 31, specified timbre parameters are read out of the sound source memory 30. Then the timbre parameters of a specified channel in the cache memory 32 are rewritten with the read-out timbre parameters. Consequently, the sound source core 33 reads timbre parameters set by channels out of the cache memory 32 and reproduces a musical sound, so that the musical sound with the changed timbre can be reproduced.
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Inventors:
Yasuyuki Muraki
Application Number:
JP2001156622A
Publication Date:
April 27, 2005
Filing Date:
May 25, 2001
Export Citation:
Assignee:
Yamaha Corporation
International Classes:
G10H1/00; G06F12/08; G10H1/24; G10H7/02; H04M1/00; H04M1/80; H04M19/04; (IPC1-7): G10H1/00; G06F12/08; G10H7/02
Domestic Patent References:
| JP2000276172A | ||||
| JP11312085A | ||||
| JP10020860A | ||||
| JP11202866A | ||||
| JP2000224269A |
Foreign References:
| WO1999059132A1 |
Attorney, Agent or Firm:
Yasuo Asami
Hideo Takahashi
Yoshitaka Takeyama
Takamori Suzuki
Hideo Takahashi
Yoshitaka Takeyama
Takamori Suzuki