Subject: Re: [linux-audio-user] Re: [linux-audio-dev] Re: [Alsa-devel] Firewire Audio Card Support
From: Steve Harris (S.W.Harris_AT_ecs.soton.ac.uk)
Date: Fri Nov 19 2004 - 10:51:18 EET
On Thu, Nov 18, 2004 at 06:19:45 -0800, Brad Fuller wrote:
> >Instead of a $400 2 channel PCI card we might end up with a $600
> >16-in/16-out device with hardware signal processing on board. To me
> >this is probably a better place to go. If we do all this work ten we
> >want to start working towards an architecture that will last.
Now youre talking.
> Taking ladspa and mapping it to FPGA: how? and how would you do this
> efficiently, if you could do it? A C function to VHDL function
> convertor? (it's been a long time since I've worked with FPGAs. I'm sure
> there are advances)
Yeah, there are C to VHDL compilers, but I think there a bit wierd. I'm
not sure they'd give you floating point operations.
Another route would be to weld a lowend cpu on the board, but I'd guess
that will be expensive and difficult.
> It might be more cost effective to use DSPs -- that is: more cost
> effective in the long run for everybody -- mostly the end user.
Yes, but coding for DSPs is really hard work, and LADSPA plugins wont port
over as they use floating point maths.
- Steve
This archive was generated by hypermail 2b28 : Fri Nov 19 2004 - 10:54:03 EET