[linux-audio-dev] Linux DSP Hardware?

[jipi]

Hi All,

I was thinking,

we always have dedicated graphic cards for gaming/3D rendering etc..
why don't we have some h/w optimised audio algos running on some 
FPGA/DSP/ etc...

...

on linux...

look at these.. are there simple/cheap/open versions of these?

http://www.lyrtech.com/DSP-development/audio/index.php
http://www.zpeng.com/Articles/Section1/digitalaudio.html
http://www.altera.com/products/devkits/partners/kit-ate-dmck.html
http://lts1pc19.epfl.ch/repository/Simeonov2004_737.pdf

what we require is a separate card which can take a few channels of 
audio lines and process them in a cheap FPGA/DSP (put in your favourite 
**HW LADSPA** algo).. and route them back to the main audio card..

of course I am for the idea of using clusters of linux PCs while some of 
them do different types of audio processing,
but not everyone has access to more than 1 PC.. : >

jipi

Steve Harris wrote:

>On Fri, Feb 18, 2005 at 12:08:35PM +0100, Clemens Ladisch wrote:
>  
>
>>jipi wrote:
>>    
>>
>>>currently, all signal processing algos are being done in software for
>>>Linux Audio.
>>>are there any hardware accelerated support for audio hardware when doing
>>>these sort of algos?
>>>      
>>>
>>If you bend the definition of "hardware accelerated" enough, SIMD
>>extensions like MMX/SSE... would qualify. :)
>>    
>>
>
>Heh, yeah, though we dont support those that well, until gcc4 is out.
>
>There is a problem to do with building LADSPA plugins that makes it hard to
>hand over SSE-built functions on SSE capable machine, and 387 otherwise
>from a single .so, which is a shame, but I cant think of an easy way round
>it.
> 
>  
>
>>>what if we want to experiment with h/w dsp?
>>>      
>>>
>>The DSP on emu10k1 cards is the only one supported in Linux.
>>    
>>
>
>I think some of the general purpose DSP PCI cards are supported, but they
>cost serious money. e.g. http://www.agelectronics.co.uk/dp12.html
>
>- Steve 
>
>
>  
>