You need sampling at twice the frequency as a minimum to extract a time domain signal into the frequency domain. It says nothing about “perfect” especially when you’re listening in the time domain.
Yes it does. You can use a higher frequency, but that does not change anything except increase the maxiumum frequency possible. Even with perfect ears and the best equipment, there is no audible (and mathematical) difference to be had.
Everyone who claims otherwise should watch Monty’s explainer videos. I know they are quite old at this point, but everything he explains is still perfectly valid. If that does not convince you, nothing will.
captain_aggravated@sh.itjust.works 1 week ago
It is my admittedly limited understanding that we really can’t do better at digitally recording an audio signal than how red book audio does it, such that the microphones, amplifiers, ADCs etc on the recording end and the DAC, amp and speakers on the playback end are going to be much more significant factors in audio quality.