Claims
- 1. A rhythm generator comprising:
- a musical sound generating circuit for reading out a musical sound from a musical waveshape memory using address information obtained by accumulating frequency information stored in a tone coefficient memory;
- an envelope generating circuit for reading out from an envelope memory an envelope waveshape corresponding to each tone by accumulating envelope information determining an envelope time corresponding to each tone using address information obtained by accumulating the envelope information stored in an envelope coefficient memory; and
- an address counter for performing address assignment to cause the musical sound generating circuit and the envelope generating circuit to operate on a time-divided basis;
- wherein the frequency information and the envelope information are respectively accumulated by a common accumulator on the time-divided basis.
- 2. A rhythm generator comprising:
- a musical sound generating circuit for reading out a musical sound from a musical waveshape memory using address information obtained by accumulating frequency information stored in a tone coefficient memory;
- an envelope generating circuit for reading out from an envelope memory an envelope waveshape corresponding to each tone by accumulating envelope information determining an envelope time corresponding to each tone using address information obtained by accumulating the envelope information stored in an envelope coefficient memory;
- an address counter for performing address assignment to cause the musical sound generating circuit and the envelope generating circuit to operate on a time-divided basis; and
- means for storing attack and decay coefficients in the envelope coefficient memory by high-order and low-order bits of the same address, respectively, and for selectively reading out the contents of the high-order and the low-order bits.
Priority Claims (2)
Number |
Date |
Country |
Kind |
55-119929 |
Aug 1980 |
JPX |
|
55-119930 |
Aug 1980 |
JPX |
|
Parent Case Info
This is a continuation of application Ser. No. 06/292,911 filed Aug. 14, 1981, now abandoned.
US Referenced Citations (8)
Foreign Referenced Citations (1)
Number |
Date |
Country |
124195 |
Sep 1980 |
JPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
292911 |
Aug 1981 |
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