Patent ID: 6023016
Filing Date: 2000-02-08
Classification: G10H

Abstract:
A tone generator system for forming sound waveform data by use of a computer having installed therein a predetermined operating system and a program for implementing a software tone generator,wherein said operating system includes an application layer and a driver layer, said operating system also including a first interface for receiving performance information on the basis of which waveform data is to be formed and delivering the received performance information to a program installed as a driver for processing the performance information in said operating system, and a second interface for receiving formed waveform data and delivering the received formed waveform data to a waveform outputting program installed as a driver for processing the waveform data in said operating system, said program for processing the performance information and said waveform outputting program being run in said driver layer of said operation system,said software tone generator is application-level software which is run in said application layer of said operating system and executes sound waveform data forming processing to form waveform data on the basis of the performance information and outputs the formed waveform data via said second interface, andsaid tone generator system comprises a fake driver which is installed as said driver for processing the performance information in said operating system and programmed to receive the performance information delivered via said first interface and send the received performance information to said software tone generator,whereby said first interface delivers the received performance information to said fake driver installed as said driver for processing the performance information.