[LAD] Audio problem for numerical optimization

Paul Davis paul at linuxaudiosystems.com
Sun Mar 2 13:25:09 UTC 2014


On Sun, Mar 2, 2014 at 3:16 AM, Tim Goetze <tim at quitte.de> wrote:

> Two algorithms of wide and likely lasting use that might be able to
> benefit strongly from vectorisation come to my mind: sample-rate
> conversion and time-stretching (the frequency-domain kind which
> already benefits from FFTW efficiency but does a lot of costly
> arithmetic on top of that).  There's excellent code for both out there
> but I think -- correct me if I'm wrong -- it's pretty much exclusively
> scalar not vector/parallel processing.
>

i totally concur.

the OP(s) should by looking at both soundtouch and librubberband. any
others?
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