audio-feedback system的意思|示意

In audio, a very low frequency oscillation often resulting from a positive feedback path in an amplifier system.

在音响设备中出现的振荡频率极低的低频振荡，常因放大系统的正反馈回路引起。

The process of each therapeutic or follow-up interview was recorded by color video cameras and high sensitive audio recording system. Meanwhile a self-designed scale was used for feedback.

用彩色摄像和高灵敏度录音系统记录每次治疗访谈和随访访谈的全部过程，用相应调查表进行反馈。