[PlanetCCRMA] m-audio Delta 1010

Aaron Trumm aaron@nquit.com
Wed Oct 1 14:44:01 2003

I don't know about the specifics of your problem, but that noise is often
due to incompatible sample rates, or cables that aren't quite handling the
digital signal right

for example, if I were to set my Darwin at 48khz and plug into a dat machine
and play back a dat at 44.1, I would get that noise

also, occasionally I've had the same thing when i attempted to use a normal
rca cable for spdif i/o (I have some normal rca cables that work though)

----- Original Message -----
From: "Aaron Heller" <heller@ai.sri.com>
To: <planetccrma@ccrma.Stanford.EDU>
Sent: Wednesday, October 01, 2003 4:23 PM
Subject: [PlanetCCRMA] m-audio Delta 1010

> Does anyone here use a Delta1010?   I just upgraded from a Delta66 to
> the 1010 and am getting a lot of noise on the analog capture inputs at
> 88.2 and 96kHz sample rates -- about -30dBfs (should be -100dBfs).  The
> Delta66 worked flawlessly.  This is not a click, pop, dropped sample,
> xrun problem, but just white (or maybe pink) noise mixed in with the
> signal, which is otherwise clean and undistorted.  In fact, you can hear
> it just by routing the capture inputs to the outputs with envy24control,
> so the audio never moves off the board.
> M-Audio Tech Support says they don't support Linux (despite the penguin
> on the box and claims on their website) and won't talk to me until I
> install it in a Windows box.   I upgraded based on their compatibility
> with ALSA and my excellent experience with the Delta66.
> I use it in a homebrew mini-itx system (Via M9000) that I use for
> multichannel on-location recording with a Soundfield microphone.  I'm
> running the Planet Red Hat 8.0 distribution with the planetdev
> kernel-2.4.20-1.12.ll.acpi and ALSA-0.9.0-45.  (I know these are about 6
> months old, but I have not been able to get the newer kernels to boot on
> the mini-itx system, but that's a topic for another day).
> I posted also posted this to the ALSA-user list too, but haven't gotten
> any replys.
> Thanks...  Aaron Heller <heller@ai.sri.com>
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