higher quality resampling/interpolation (feature request)

[Logga]

It looked at Speedrum's resampling quality. Even just playing some tones I could hear some aliasing.

But to get some objective data, I played a 44.1 kHz RMAA test file in a 48 kHz session in Speedrum and this is the result:


And this is the same file in Reaper's ReaSamplOmatic5000 with 64pt Sinc Interpolation:


And here's a frequency sweep in Speedrum:


And in Reaper/ReaSamplOmatic5000, again at 64pt sinc:



It's not uncommon for samplers to perform poorly, because low CPU/RAM consumption and low latency are important. And by the way, Sitala performs just as bad, while TAL-Drum performs just a bit better.

But I still think that there could at least be an option for a higher quality, for people who want to use it.
And for example, that Reaper 64pt Sinc Interpolation mode has just 38 samples of latency (less than a millisecond), which I think is a good compromise.

[apisonic]

Thanks for your suggestion. Yes, in the future, I definitely plan to add better quality resampling as an option for more demanding users.