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HSA-1型声控扩音电话是一种音频传输、双向增音的通讯设备。文章首先分析了音频传输和双向增音设备所特有的问题——声回授和振鸣;进行了稳定性的分析,从而确定了本机的设计思路和具体方案。实验结果表明:应用声控技术完全可以消除振鸣,保证了通话的高质量。HSA-1型声控扩音电话已通过生产定型。有双向增音;输出功率大、声音宏亮同时不振鸣;语言清晰而无卡头去尾现象;结构简单、造型美观、使用方便、易于维护等特点。
HSA-1-type voice-activated speaker phone is a kind of audio transmission, two-way voice communication equipment. Firstly, the paper analyzes the problems peculiar to audio transmission and two-way enhancement devices - acoustic feedback and vibration; analyzes the stability, and then determines the design ideas and specific solutions of this machine. The experimental results show that the application of voice-activated technology can completely eliminate the ringing and ensure the high quality of the call. HSA-1-type voice-activated microphone has been through the production of stereotypes. There are two-way tweeter; output power, loud and clear voice at the same time not Ming; clear language without chuck to the end of the phenomenon; simple structure, handsome in appearance, easy to use, easy to maintain and so on.