[time-nuts] Using cheap sound cards for measurements

[Demian Martin]

USB sound sample rates above 48 KHz are problematic. There are efforts to
overcome the limits but they end up with special drivers etc. The bulk of
the USB audio interfaces are based on Burr Broun chips which do virtually
all you need. There are some "pro"  models for around $150 - $200 that have
high sample rates etc, but they use special drivers to work. Emu has several
high performance boxes to consider. Linux support is problematic. . .

Demian Martin
PDS

From: "Don Latham" <djl at montana.com>
Subject: Re: [time-nuts] Using cheap sound cards for measurements
To: "Discussion of precise time and frequency measurement"
	<time-nuts at febo.com>
Message-ID:
	<2f5e8fceb09e1b00c72c1c16ed514570.squirrel at webmail.montana.com>
Content-Type: text/plain;charset=iso-8859-1

On this track, what's the group opinion as to the best USB sound "card"?
I'm looking for one for time as well as sd radio use. Should have the best
separation, best s/n, highest digitization rate, 24 bit, etc. Any
recommendations?
Thanks
Don