Storing and interpolating means for a musical sound generating d

Details Storing and interpolating means for a musical sound generating d Storing and interpolating means for a musical sound generating d

1996-02-06

1997-06-10

Sircus, Brian

Music

Instruments

Electrical musical tone generation

84607, 84605, G10H 102

Patent

active

056378211

ABSTRACT:
A musical sound generating device has a waveform memory to store musical sound waveform data to be read-out repeatedly between a loop-top address (integral address) and a loop-end address (integral address). The same musical sound waveform data is stored at the loop-top address and the loop-end address. An address computing circuit computes a read-out address, including a decimal part, to repeatedly read out the musical sound waveform data stored between the loop-top address and the loop-end address in the waveform memory. An interpolating circuit carries out interpolation if the read-out address generated by the address computing circuit includes a decimal part. Interpolation is carried out by dividing in proportion the musical sound waveform data read out from the waveform memory using an integral part of the read-out address and the musical sound waveform data read out from the waveform memory using a value obtained by adding 1 to the integral part of the read-out address according to the decimal part.

REFERENCES:
patent: Re33738 (1991-11-01), Ikumura
patent: 3763364 (1973-10-01), Deutsch et al.
patent: 4520708 (1985-06-01), Wachi
patent: 4584921 (1986-04-01), Wachi
patent: 4646608 (1987-03-01), Deutsch
patent: 4667556 (1987-05-01), Hanzawa et al.
patent: 5146834 (1992-09-01), Izumisawa et al.

Affiliated with

Also associated with

Rating

Storing and interpolating means for a musical sound generating d does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Storing and interpolating means for a musical sound generating d, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Storing and interpolating means for a musical sound generating d will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-766281