语音频率均衡在耳鸣康复仪中的应用

Application on Frequency Equalization of Speech in the Tinnitus Treating Instrument

以人耳等响曲线为依据,结合电声转换的原理,设计了一种语音频率均衡电路。该均衡器由多级数字电位器组成,对输出信号的幅度进行自适应调整,从而实现了各频率点声音响度的精确可控输出。临床试验表明,耳鸣康复仪中嵌入频率均衡器扩展了它的使用范围,改善了耳鸣治疗的效果。

Based on the equal-loudness curve, a speech frequency equalizer is designed combing with the principle of electronic-to-sound transform. The equalizer is composed of multi-step digital potentiometers, and can control the amplitude of the output signal adaptively. Therefore the loudness of the output voice is controlled accurately at different frequency. The clinical test indicates the frequency equalizer embedded in the tinnitus treating instrument extends the applying ranges and improves the treatment effectively.