You should watch this: https://youtu.be/cD7YFUYLpDc?si=rUm6IR3IKXyzcaDB to better understand why high sample rates are a waste of time, instead of just reading about nyquist. "accurately preserving a 6kHz sine wave" sounds a lot like you think that sample points are reproduced 1-1 from the digital to the analog domain.
This just builds on the xiph video someone else linked but essentially
- sine waves are fine as long as you have points for rising and falling edge (nyquist, 44k guarantees 22k sine wave reproduction)
- bit depth only really affects noise floor, so it depends on your audios dynamic range
This just builds on the xiph video someone else linked but essentially
- sine waves are fine as long as you have points for rising and falling edge (nyquist, 44k guarantees 22k sine wave reproduction)
- bit depth only really affects noise floor, so it depends on your audios dynamic range