通过反转时域信号的极性，我可以取消源音频？ [英] By reversing the polarity of a time domain signal, can I cancel the source audio?

问题描述

我在时域中的输入信号（即，离散的14100符号的整数每秒）。

I have an input signal in time domain (that is, discrete 14100 signed integers per second).

如果我反极性的每个值（签署岬），我将不会产生破坏性的源音频抵消信号？

If I reverse the polarity (signed-ness) of each value, will I not produce a destructive source-audio canceling signal?

推荐答案

破坏性取消通过简单地颠倒极性会出现只有当您的总从您的输入信号的软件/硬件/系统/换能器的延迟时间，以你的输出信号，以点取消为零（或最高频率的周期的一个非常小的百分比），和破坏性换能器的频率和相位响应是绝对平坦

Destructive cancellation by simply reversing polarity will occur only if your total software/hardware/system/transducer delay time from your input signal to to your output signal to the point of cancellation is zero (or a very tiny percentage of the period of the highest frequency), and the frequency and phase response of the destructive transducer is absolutely flat.

例如。只可能在虚构/理论模型。

e.g. only likely in fictional/theoretical models.

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