4khz的带宽是指什么意思_扬声器和耳机的Hz-KHz范围是什么意思？
4khz的带宽是指什么意思If you’ve looked at high-end headphones or speakers, you’ve probably noticed numbers on the spec sheet that read something like “20Hz-20KHz.” What do these numbers mean?如果您看过高端耳机或扬声器，则可能...
