Re: [linux-audio-dev] Linux DSP Hardware?

From: Steve Harris <S.W.Harris@email-addr-hidden>
Date: Sun Feb 27 2005 - 23:07:53 EET

On Sun, Feb 27, 2005 at 10:25:47 -0800, Florin Andrei wrote:
> On Tue, 2005-02-22 at 10:23 +0000, Steve Harris wrote:
> > On Tue, Feb 22, 2005 at 11:11:25 +0100, Andreas Kuckartz wrote:
> > > One could think about using 3D graphics hardware for audio DSP purposes. There
> > > are commercial projects which do that (only for Windows AFAIK).
> >
> > There are also some free projects, but IIUC, the kinds of precessing you
> > can do are quite limited, it has to be fairly high latency as you need to
> > move the audio data to the card in large blocks.
>
> <ignorant question> So why can't you move smaller chunks more often?

<wild guesswork> Youre misusing the texture processing stuff, the cards
aren't optimised to do it (especailly sending stuff back to the host), and
it all has to go over the AGP bus.

The hardwar is not designed to do streaming processing, so it not
supprising if it can't do it very well.

- Steve
Received on Mon Feb 28 00:15:18 2005

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