I agree. There is always a level at which an input is too hot to handle, and as far as I know there is no hardware that can fill more than 24-bit meaningfully.There are some new 32-bit floating-point interfaces. I assume that will be getting more common. From what I recall, this gives you a digital range of around -1000dB to +1000 dB (infinite for all practical audio purposes) and Zoom claims "no need to set gain". But there is still analog noise and analog clipping. You might get 20dB more usable dynamic range with a floating point interface, but I'm just guessing.I've been kicked off the ASR forum for insisting 32-bit float cannot reduce clipping in any way.
There are some new 32-bit floating-point interfaces. I assume that will be getting more common. From what I recall, this gives you a digital range of around -1000dB to +1000 dB (infinite for all practical audio purposes) and Zoom claims "no need to set gain". But there is still analog noise and analog clipping. You might get 20dB more usable dynamic range with a floating point interface, but I'm just guessing.I've been kicked off the ASR forum for insisting 32-bit float cannot reduce clipping in any way. So best I put that on another thread after this. I wrote an essay explaining why, if you want to polish your knives
现在这样很好，是记录上次的播放状态。说实话我没想到记录上次的播放状态有啥好处，毕竟它没有记录播放位置。况且即使记录了播放位置，我也认为以pause的状态启动是更合适的。
也就是，你需要按下暂停而不是终止进程。
This is good now. It records the last playback status.To be honest, I didn't think about the benefit of recording the last playback status. After all, it doesn't record the playback position. Moreover, even if the playback position is recorded, I think it is more appropriate to start it in pause state.
That is, you need to press pause instead of terminating the process.
But I don't believe any pre-amp can perform accurate linear voltage multiplication with a microphone voltage/current because the current is too weak.Linearity isn't a problem until clipping. It's super-easy to build a highly-linear amplifier. Non-linearity will show-up in distortion measurements and most audio amplifiers (even cheap ones) have distortion below audibility unless over-driven.
forcing the amplifier to focus on the strong end while the weak end falls off the sensitivity of the pre-amp.It's not "focusing" on anything. Remember, it's just multiplication. You can multiply 1 x 10 = 10, or 1001 x 10 = 10,010 and you're not losing any resolution with bigger numbers. Also when you have a "wave" there is a zero-crossing twice per cycle and near the zero crossing the amplitude becomes infinitesimally small, and at that time you are amplifying very-small voltages.
So, mustn't a microphone pre-amp pick a range of voltage to amplify?Yes. At the low-end you are limited by noise, and by clipping at the high-end. With very loud sounds (like a gunshot) you can sometimes use a dynamic microphone and bypass the preamp.
If that wasn't true we wouldn't need a gain knob in the same way there isn't a gain knob in a high end stereo system amplifier because the amplifier assumes it's receiving a voltage optimized for amplification.There are certain "things" like the Berhinger UCA202 audio interface, or most USB turntables, that don't have a recording-level control. They are usually calibrated for lower digital levels so they don't easily clip. Most inexpensive USB mics don't have a control either and they also put-out low digital levels with "regular voice" but they will overload if you stick them in front of a loud guitar amp or kick-drum.