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人耳听力范围是严格限制在 20Hz ~ 20000Hz 的么？19Hz 或者 20001Hz 呢？ - 知乎 The first one showed that when extracting the excess phase part of a recorded loudspeaker room impulse response and imposing this on an anechoically recorded signal, the difference between the compound and the raw unmodified signal is indeed audible The second listening test showed that the minimum phase