On 07.03.2024 01:33, Alexandre Torres Porres wrote:

Em qua., 6 de mar. de 2024 às 21:27, Alexandre Torres Porres <porres@gmail.com> escreveu:

I got this rather old 2013 macbook air, and using it with a delay of only 5ms doesn't give me any noticeable dropout!

As I said, you likely don't notice it if the file is (still) cached by the OS. You need to test with files that aren't cached! On Windows you can manually clear the file cache (https://stackoverflow.com/a/9649439), but I don't know about macOS.

btw, 4ms chokes and causes dropouts when testing audio with the audio-mid test patch, just playing a sine wave...

That's a problem with the scheduler. With my scheduler fixes, you should be able to go lower: https://github.com/pure-data/pure-data/pull/1756

But again, you should really test with uncached files and/or with a fairly high CPU load.

Christof