[music-dsp] Resampling

[Anders Clerwall]

Thanks for the links.

Yes, it looks too slow for my purposes also, not even considering the added memory usage!
I'll probably have to do both linear and spline (choosable) interpolation by the looks of it.
Should I maybe low-pass filter it during resampling? Would that avoid some aliasing?

Cheers, 
--anders
 
-----Original Message-----
From: music-dsp-bounces at ceait.calarts.edu [mailto:music-dsp-bounces at ceait.calarts.edu] On Behalf Of Dewald, Volker
Sent: Monday, September 06, 2004 4:36 PM
To: a list for musical digital signal processing
Subject: AW: [music-dsp] Resampling

Maybe you'll find the notes at DSPGuru useful.

There's also free code, but it's too slow for my purposes.

Volker

 -----Ursprüngliche Nachricht-----
Von: 	Laurent de Soras [Ohm Force] [mailto:laurent.de.soras.m1 at club-internet.fr] 
Gesendet:	Montag, 6. September 2004 16:33
An:	a list for musical digital signal processing
Betreff:	Re: [music-dsp] Resampling

Anders Clerwall wrote:

> I'm working on a software-synth-kinda-thing and was wondering about 
> what the best resampling method would be.
> Since all this is run-time it must be as fast as possible, but still 
> it would be nice to get somewhat good results.
> 
> The system is using 32b IEEE floating-point samples and a fixed 
> internal sample rate of 44.1kHz.

You'll find here the description of a high-quality resampling method dedicated to synth/samplers:
http://ldesoras.free.fr/prod.html#doc_resampler

And source code:
http://ldesoras.free.fr/prod.html#src_resampler

-- Laurent

==================================+========================
Laurent de Soras                  |               Ohm Force
DSP developer & Software designer |  Digital Audio Software
http://ldesoras.free.fr           | http://www.ohmforce.com
==================================+========================
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