复杂声刺激波形的计算机合成

USING DIGITAL SYNTHESIS TECHNIQUES TO GENERATE THE SOUND OF COMPLEX WAVEFORMS REQUIRED IN AUDITORY PHYSIOLOGY STUDIES

根据数字化频率合成原理 ,结合模数转换技术 ,实现声刺激波形的计算机实时合成 ,由于采用软件实时合成技术 ,因此理论上只要有理想的算法 ,运用该技术可模拟出任意复杂的声刺激波形。

This report describes a digital system for use as a sound stimulator in auditory physiology in which signal generation which is controlled by a single microcomputer. The system is built upon a digital-to-analog converter(DAC) hardware system, and to use direct digital synthesis techniques to generate sound of arbitrary complex waveforms required in auditory physiology studies.