3 ms·
But the question remains. Given Nyquist theorem and an upper limit to human ear response, what is the advantage of going over ~40kHZ? I understand you can enc
by dhimes 9y ago
But the question remains. Given Nyquist theorem and an upper limit to human ear response, what is the advantage of going over ~40kHZ? I understand you can encode more information, but decoding to higher frequencies than we can hear doesn't seem (to the novice) to be beneficial. Do we somehow 'detect' harmonics above what we can hear? Or is the extra information used to process something else differently, like the relative volumes of two slightly different instruments making a note at the same pitch? It's an interesting question IMO.
EDIT: upper ear response is presumably limited to ~20 kHz
- Loginid 9y agoYou are right about upper ear response. I can tell the difference with my now-old ears, if it is a good recording of real-world instruments in a common space. That is a lot of qualifiers, but on playback you can ‘feel’ that other space. I believe that it is because of the way that the higher frequency components of the sound interact with the environment and effectively down-transpose and affect the rest of the signal before they hit the listener’s ear.