低成本自动定位声音延迟反馈干扰装置的制作研究

DESIGN AND PRODUCTION OF A LOW-COST DELAYED AUDITORY FEEDBACK JAMMING DEVICE WITH AUTOMATIC ORIENTATION

延迟听觉反馈简称DAF(Delayed Auditory Feedback),是指通过改变人们说话和听觉反应之间的延迟时间从而对人们说话的生理过程产生影响的一种物理生物过程。研究DAF的过程和机理对于人脑中语言形成过程的探索有着重要意义,DAF过程机理的研究在治疗口吃等语言障碍方面有着直接的应用前景。现有根据DAF过程制作的应用装置较少且普遍成本较高,本文采用较简单的器材通过声音采集模块、声音播放模块和自动声音定位模块3部分的集成制作出了具有自动声音定向功能的低成本听觉延迟反馈装置。实践证实,该装置在距离说话人3米范围内可实现有效的声音延迟反馈效果。

DAF（Delayed Auditory Feedback）is a physical biological process that influences the physiological process of speaking by changing the delay time between speaking sound and auditory response.Study of DAF process and mechanism is of great significance for the exploration of the language formation process in human brain,and direct application prospect in the treatment of stuttering.Existing DAF devices are rare and costly.In this paper,a low-cost instrument with controllable delay time and automatic orientation has been designed and produced by integration of audio collection module,audio feedback module and automatic direction module.Practice proves this device can achieve the effective sound delayed feedback within 3 meters of the speaker.