Unable to record at 768 kHz on Windows via ASIO

[steve]

It makes a difference when applying any sort of correction that would benefit from high sample rate (noise reduction, time stretching etc.)

Can you demonstrate that benefit? I don't see any improvement in noise reduction or time stretching.

[goraelec]

Can you demonstrate that benefit? I don't see any improvement in noise reduction or time stretching.

Try the following:

1. Record at the highest sample rate possible
2. Use SoX to resample the recording file with high quality settings, then do the following on two files separately
3. Select the same region in both files as your noise profile
4. Instead of reducing the noise at first, leave the residue and export
5. In a new project, subtract one residue from another by doing phase invert. You should hear the difference in 20-20000 range

Feel free to do the same but with normal noise reduction. However, resampling also leaves artefacts in the hearing range, so you should also get a snapshot of those and subtract it from the signal you get

As for time stretching, it would take too long to explain, but a practical application of high sample rate recording was done for How To Train Your Dragon franchise. They recorded animal noises and slowed them down significantly (4-10 times). With low sample rate recording (below 88.2) it wouldn't have sounded nice in the finished product

[steve]

You should hear the difference in 20-20000 range

How do you know that the "difference" isn't due to Noise Reduction working better at the lower sample rate?

The reason why this is probably the case, is that the frequency band of the noise profile are much narrower (more specific) at lower sample rates.

[goraelec]

How do you know that the "difference" isn't due to Noise Reduction working better at the lower sample rate?

The reason why this is probably the case, is that the frequency band of the noise profile are much narrower (more specific) at lower sample rates.

And here comes my subjectivity, because on lower sample rates, more "good" signal gets chopped off, so it works better for me

[fxb]

Did you ever get it to work at 768kHz or are you still limited to 384 . thkx