A method to obtain the diagnostic signal, the acoustic feedback control system and the principle of laser welding diamond saw are described in the paper.
介绍了特征声信号的提取方法及其用于激光焊接金刚石锯片的反馈控制系统构成和基本原理。
It is shown that in the ANC system with IIR filter the acoustic feedback effect has been apparently abated.
结果表明，采用IIR滤波器结构的ANC系统，对声学反馈现象确实具有明显的抑制作用。
The acoustic feedback even howling is a well-known problem in sound reinforcement system.
扩声系统中普遍存在由声反馈导致的啸叫问题。
Because of the introduction of additional poles to the system by acoustic feedback channel, there exists the possibility of unstability of ANC system.
由于声反馈通道向ANC系统引入了新的极点，导致系统有失稳的可能性。
How to reduce acoustic feedback and enhance the maximum usable gain of sound reinforcement system is one of the most important terms to evaluate the performance of the sound reinforcement system.
如何合理有效地抑制声反馈，提高扩声系统增益是衡量扩声系统性能的重要依据。
The embodiment of the invention also discloses a corresponding control equipment and system for lowering acoustic feedback.
同时本发明实施例还公开了相应的降低声学反馈的控制设备及系统。
The embodiment of the invention also discloses a corresponding control equipment and system for lowering acoustic feedback.
同时本发明实施例还公开了相应的降低声学反馈的控制设备及系统。
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