More on sound cards
wb4jfi at knology.net
Mon Oct 2 22:46:39 CDT 2006
I think there are several programs out there to help with analysis. I think
the one that was used to check SB LIve 24 vs Delta 44 is readily available.
I can do more research if you need it.
----- Original Message -----
From: "Frank Gentges" <fgentges at mindspring.com>
To: "Terry Fox" <tfox at knology.net>
Cc: <tacos at amrad.org>
Sent: Monday, October 02, 2006 11:26 PM
Subject: Re: More on sound cards
> I am thinking of setting up a lab to test sound cards. Generating a
> super clean audio sine wave and two tone super clean waves are pretty
> easy with what I have. We need some digital analysis software. In
> short, yes I will set up a sound card test bed at the lab.
> Terry Fox wrote:
> > According to the Flex Radio software, the soundcards currently
> > for use with PowerSDR are:
> > M Audio Delta 44 (or 66). 4 (6) mono channels in and out, PCI bus with
> > external connector pod ($139 on the web). 24bit/96kHz. This is made by
> > Audio, who is owned by Avid. Avid is THE premier film and video editing
> > company, we bought their broadcast systems by the millions of dollars.
> > would expect their product to be first-rate. spec Dynamic range is 99db
> > (A/D) & 103db (D/A), freq response claimed 22Hz-40kHz (96kHz sampling).
> SNIP SNIP
> > We should come up with different card "suggestions" for different price
> > ranges. If someone wants to spend up to $50, here are the cards and
> > specs. Between $50 and $100, here is another group. Between $100 and
> > a third group. And above $150 as a fourth group, as an example of how
> > break down cost vs performance.
> > While I don't beleive the reviewers or the card manucafturer specs (at
> > for what we want to see), I do believe we can find fairly low-cost cards
> > that do a much better job than the older 16-bit, 48kHz sound cards.
> > I suggest we make a list of cards, divide up that list, and purchase and
> > test these various options. If a "standard lab" can be created, I
> > mind purchasing a couple cards myself, and shipping them up to the lab
> > testing. Frank: could you, George, and possibly Steve Dove put together
> > lab? I will be glad to help as I can. If we can document what the lab
> > testing consistes of, and I can duplicate it here, I can help with
> > as well.
> > More later.
> > Terry
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