Tone signal generation device of sampling type
First Claim
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1. A tone signal generation device comprising:
- first memory means, capable of reading and writing, for storing data of waveshape sample point amplitude values of a tone of first specific tone color;
external signal input means for sampling waveshape amplitude data from a waveshape signal provided from outside of said device and writing the sampled waveshape amplitude data in said first memory means;
readout means for reading out the waveshape data stored in said first memory means;
waveshape processing means for processing the waveshape data read out from said first memory means into data of waveshape sample point amplitude values of a tone having a second tone color different from said first tone color;
second memory means for storing the processed waveshape data; and
transfer control means for transferring the waveshape data from said second memory means to said first memory means.
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Abstract
In a tone signal generation device, original waveshape amplitude data corresponding to a waveshape signal from an external source is stored in a first memory. Waveshape data is read out from this first memory and is properly modified by a tone processing circuit such as a filter or a modulation effect circuit. The modified waveshape data is reserved in a second memory. The waveshape data stored in the second memory is selectively transferred to the first memory. In this manner, the original waveshape data initially stored in the first memory can be freely modified and a tone can be produced with a high degree of freedom as in a music synthesizer.
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Citations
13 Claims
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1. A tone signal generation device comprising:
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first memory means, capable of reading and writing, for storing data of waveshape sample point amplitude values of a tone of first specific tone color; external signal input means for sampling waveshape amplitude data from a waveshape signal provided from outside of said device and writing the sampled waveshape amplitude data in said first memory means; readout means for reading out the waveshape data stored in said first memory means; waveshape processing means for processing the waveshape data read out from said first memory means into data of waveshape sample point amplitude values of a tone having a second tone color different from said first tone color; second memory means for storing the processed waveshape data; and transfer control means for transferring the waveshape data from said second memory means to said first memory means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification