3 ms·
I'm not saying this is wrong, but the Nyquist-Shannon sampling theorem states that a "theory of pure frequencies" is sufficient to reconstruct a band-limited si
by alanbernstein 6y ago
I'm not saying this is wrong, but the Nyquist-Shannon sampling theorem states that a "theory of pure frequencies" is sufficient to reconstruct a band-limited signal from samples. What's the missing element?
- yoz-y 6y agoI'd hasard a guess that the problem is not that you can't perfectly reproduce a sound of an instrument being played. However when you simulate it using samples you reduce the sound to a sum of independent recordings, whereas a real instrument will behave differently when you play multiple notes because of the material.
- andybak 6y agoYes. Plus a huge amount of other stuff. A naive sampler misses: 1. (as you say) How playing multiple notes at the same time changes the way the instrument responds 2. How playing at different intensities changes how the instrument responds. 3. The many subtle ways your physical interaction with the instrument change the sound 4. The way playing notes in succession at different rates can alter the sound 5. The physical space or choice of amplification can affect the instrument - even an acoustic guitar can "feed back" on itself to some degree 6. A bunch of other things I haven't thought of. Sophisticated samplers (and sophisticated sample libraries) can simulate some of the above. But physical modelling synths are probably a better way forward.
- alanbernstein 6y agoWhat is the difference between "a sum of independent recordings" and "reconstructing from samples"?