Patent ID: 8962965
Filing Date: 2015-02-24
Classification: G10H

Abstract:
1. A musical sound generation device comprising: a plurality of sound generation channels that generate musical sound; an address calculator that calculates an address in order to read, from a waveform memory connected by a bus, waveform data to be assigned to the respective sound generation channels, by time division, for each of the sound generation channels; an address memory that associates and stores addresses calculated by the address calculator and the sound generation channels; a bus traffic detection unit that detects traffic information of the bus; a waveform data reader that reads an address stored in the address memory, when it is determined that the bus is in a low traffic state based on the traffic information of the bus detected by the bus traffic detection unit, and reads waveform data from the waveform memory based on said read address; a waveform generation prescription unit that prescribes assigning waveform data read by the waveform data reader to a corresponding sound generation channel, and generating a musical sound for the sound generation channel to which said waveform data is assigned; and a read data amount determination unit that determines a read data amount that is to be read from the waveform memory by the waveform data reader, based on an amount of traffic detected by the bus traffic detection unit.