Title:
【発明の名称】楽音発生装置
Document Type and Number:
Japanese Patent JP2567717
Kind Code:
B2
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.
Inventors:
IZUMISAWA GEN
WASHAMA YUTAKA
WASHAMA YUTAKA
Application Number:
JP8118790A
Publication Date:
December 25, 1996
Filing Date:
March 30, 1990
Export Citation:
Assignee:
KAWAI MUSICAL INSTR MFG CO
International Classes:
G10H7/00; G10H7/04; G10H7/02; G10H7/08; (IPC1-7): G10H7/02
Attorney, Agent or Firm:
Kaoru Kawanami