So, today is the day i ask the question that’s been haunting me for a long time. I could have ask in any audio-related forum but since the ratio of smart people is rather high here, I thought it would be a good place!!
So, we often hear that it’s doesn’t make that much of a difference to record above 44.1KHz because of « I don’t remember the name of » the law you divide by 2, that makes that frequencies above 20KHz won’t be captured or something and most human ears can’t hear above 20K. Right? It’s just useful to dogs to use a higher sampling rate, bla bla bla.
But, when we talk about frequencies the human can hear, we’re talking about frequencies related to pitch. When we talk about sampling frequencies we talk about the number of samples(recordings) a converter will make every second. What relation does it have with the highest frequencies a human ear can hear? In another kind of sampling, if I take 4 pictures a second of someone walking in front of me, and then 16 pictures a second, the later will give a smoother idea of the walk but I won’t see less content in the pictures, no? Don’t know if I’m making myself clear?
What’s the relation between the frequencies in Hz that the ear can hear(pitch) and the frequencies of a recording(number of samples captured every second)? Thanks for any explanation.