Subject: Re: [linux-audio-user] Re: [linux-audio-dev] Re: [Alsa-devel] Firewire Audio Card Support
From: Lee Revell (rlrevell_AT_joe-job.com)
Date: Fri Nov 19 2004 - 05:15:54 EET
On Thu, 2004-11-18 at 18:55 -0800, Mark Knecht wrote:
> However, even with an
> onboard DSP, which is most likely what Pro Tools does, we'd still need
> to map from LADSPA C code to DSP code.
No, you would just use a DSP with a documented instruction set like the
SHARC. This is used in a lot of pro audio gear. You use LADSPA for
host signal processing and native DSP code for hardware processing.
This is how Pro Tools plugins work - there is one type that runs on the
hardware and another type that runs on the host. I don't remember the
exact terminology.
All the examples from this guide use SHARC DSPs:
http://www.dspguide.com/pdfbook.htm
Do we currently have any supported hardware with an "open" DSP? The EMU
chips have them but this support was reverse engineered.
Lee
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