Musical sound generating device and storage medium storing musical sound generation processing program
AssigneeCasio Computer Co., Ltd.
InventorHiroshi IWASE
Life of this patent
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Abstract
Upon activation by a power-on operation, a CPU transfers part of waveform data items of predetermined tone colors from a waveform data storage to a waveform RAM, and after this, transfers data items including the remaining waveform data to be transferred. Thereby, a musical sound generating device assigns the transferred waveform data items to make it playable when the transfer of the part of the waveform data has been completed, and changes the assignment of the waveform data to make it playable in an ordinary state when the transfer of the remaining waveform data has been terminated.
Claims5
A musical sound generating device for sounding musical sounds with pitches instructed through operations on musical performance operators by using waveform data items indicating waveforms of the musical sounds, the device comprising:
- first storage means for storing various data items for use in operations of the musical sound generating device, the various data items including waveform data items each corresponding to one of tone colors of the musical sounds;
- second storage means accessible faster than the first storage means;
- data transfer means for transferring a data group which is to be transferred in activation of the musical sound generating device, among the various data items stored in the first storage means, to the second storage means, the data transfer means preferentially transferring waveform data items which correspond to predetermined tone colors, among waveform data items of the data group;
- and
- limiting means for limiting operations of the musical sound generating device in accordance with a transfer situation of the data group by the data transfer means.
A computer-readable storage medium storing computer-executable program applied to a musical sound generating device for sounding musical sounds with pitches instructed through operations on musical performance operators by using waveform data items indicating waveforms of the musical sounds, the program comprising:
- data transfer means for transferring a data group which is to be transferred in activation of the musical sound generating device, among various data items stored in a first storage means including waveform data items each corresponding to one of tone colors of the musical sounds for use in operations of the musical sound generating device, to the second storage means accessible faster than the first storage means, the data transfer means preferentially transferring waveform data items which correspond to predetermined tone colors, among waveform data items of the data group;
- and
- limiting means for limiting operations of the musical sound generating device in accordance with a transfer situation of the data group by the data transfer means.
Dependencies are inferred from the claim text.