[sdiy] Linear interpolation (Was: Drum sample playback)

[Andre Majorel]

On 2017-02-17 22:45 +0000, Richie Burnett wrote:

> It's usually the resampling that takes the majority of CPU
> cycles with sample playback. So for a given amount of CPU
> power you can either have tons of voices that alias like hell
> when you transpose the samples or a quarter of those voices
> with nice clean detuning of the samples. I suspect this is
> where they might have cut corners.
> 
> Of course if you want to pitch up a Hi-hat sample and the
> playback module has crap resampling, then there's nothing to
> stop you transposing the sample in a decent audio processing
> package first before sticking it on the sd card.  (That's what
> I used to do with my old Akai S01 sampler that had crappy
> linear interpolation, and turned hi-hat samples into rustling
> paper bag sounds as soon as you touched the transpose
> control!)

Just wanted to say this about "crappy linear interpolation" :
I've played with it and to me, the way it makes everything sound
like it's made of triangle waves is irresistible. If you're into
dirty low-fidelity sounds, you owe it to yourself to try it.

-- 
André Majorel http://www.teaser.fr/~amajorel/