Digital Audio Workstation in D

[Guillaume Piolat via Digitalmars-d]

On Monday, 15 February 2016 at 10:52:17 UTC, Ola Fosheim Grøstad 
wrote:
>
> I haven't been able to find a BSD style licensed high quality 
> polyphase resampling library. Which is what you need if you 
> want to efficiently change pitch on the fly.
>

This library exist, the author Aleksey Vaneev is basically a DSP 
greek semi-god.
https://github.com/avaneev/r8brain-free-src

By the same author: https://github.com/avaneev/avir