- Feb 9, 2018
Using Audacity, the visual effect of -60dB on a music waveform.
Of course, a visual comparison isn't very useful, since you're only using a couple of hundred pixels for the vertical scale (so, about 8-bit resolution). Since you've attenuated by 60dB, you've dropped the bottom 10 bits. You started with 24-bit PCM, so that leaves 14 bits, so differences won't be visible in your 8-bit visual representation.
That said, with 24 bits to play with, you can afford a 48dB gain control without getting poorer than CD quality reproduction...