Re: [linux-audio-user] Re: [linux-audio-dev] Re: [Alsa-devel] Firewire Audio Card Support

[Florian Schmidt <mista.tapas@gmx.net>]

On Thu, 18 Nov 2004 14:54:27 -0800
Mark Knecht <markknecht@gmail.com> wrote:

> I've had this sort of project on my mind for a year or two. (Since my
> first run in with the HDSP 9652 under Linux in early 2003.) I am,
> unlike I think many people here, a hardware designer by trade. Mostly
> chips, but my engineers had done boards for our chips.
> 
> Coincedentally I was laid off yesterday and am sitting at home
> thinking about what to do with myself during my current delimma...

Hi,

maybe you can tell us then how much the components for such a simple pcm
only soundcard would cost? What's nessecary? And i mean really simple. Just
a single full duplex stereo pcm device. No mixer (who needs a mixer? Real
men have their mixer sitting in a rack :))

- 2 AD's and 2 DA's 
- a dsp (is it really nessecary?)
- some memory for the buffers
- a pci board
- pci logic (raising irq's, doing the transfers)
- some "glue"

i may be naive though as i really have no idea about the hw side of things.
Especially it gets tricky when allowing all kinds of different sample
rates/buffer sizes, etc. And of course i suppose the price is heavily
dependent on the quality of the components. But what would be lower and
upper bounds for the components alone? And what kind of work is nessecary
(how many manhours)

- to design the thing

- to build the thing

?

Florian Schmidt


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