中文摘要：

摘要介绍了一种用于听诱发反应的听刺激器的设计。传统刺激器通常分为软件刺激和硬件刺激两种，存在精度难以限证和刺激方案有限等问题。本系统基于虚拟仪器设计，软件部分采用LabVIEW（1aboratory virtual instrument engineering Workbench）开发，提供使用界面和各类刺激的编辑；硬件部分用PCI6221采集卡作为信号输出，接D类音频功放提高系统的驱动能力。实验表明，本系统可以提供高精度的刺激信号，同时可以任意设置刺激波形，失真度低，能够满足大多数听诱发反应实验的要求。

英文摘要：

The aim was to propose a new sound stimulation system for Auditory Evoked Potential recording. Most traditional stimulators can be divided into software stimulators and hardware ones; the main problems existed were the precision can not reach the request of some special experiments and the stimulating signals were limited to a few kinds due to the structure. LabVIEW（ laboratory virtual instrument engineering workbench）was employed to accomplish the software system, which included the operator interface and sound editor; NI DAQ card PCI6221 was adopted as the hardware module and followed by a class D audio power amplifier to enhance drive capability. Test results show that by applying the virtual instrument technology, the system could generate stimulating signals of every variety with high precision, the sound distortion is less than soundcard. Therefore the system can be used as a high-performance sound stimulus generator.