DSP on but no audio
Jul 3, 2009 at 10:19am
DSP on but no audio
I have recurring problems in an installation running in a museum that opened last month in France.
I have exactly the same collective set on 4 exactly similar machines (same sofware; Windows XP family ed.2002 SP3, same hardware). I use Max 5 runtime 5.0.7 and the integrated sound card.
Typically, the problem is that audio stops after a while, with way/no way, depending, to turn it back on.
Last week I found a fix consisting in selecting “another” audio driver (among ad_mme or ad_directsound). One strange thing is that, depending on the machines, the one to work was either the one or the other. (note: if I selected the wrong one, I got an “ad_mme: stopping due to error”, and the ezdac set back off after a couple of sec each time I tried to put it on.)
To dodge this strange behaviour, I had asio4all installed, and forced on startup the selection of ad_asio4all via “adstatus driver”.
But: for a couple of days again, the audio have gone out on 2 of the 4 machines, with no reason. It just breaks after a while.
The top cool thing is that that the musuem is 500km from here so I only can give clear and simple instructions to people there, and thus must bet carefully on the best diagnosis.
My clues are:
In about 8h (when the musuem closes) I can have further tests made, in particular I’d ask for a copy of all messages from the console – too bad I don’t have em already.
This is very urgent, I’d rreeeeeeeeaaally appreciate some help!
Jul 4, 2009 at 6:02pm
just a shot in the dark:
Jul 4, 2009 at 7:22pm
Thank for helping.
I think machines feature 2Go RAM that’s I think (thought?), enough for me. My app basically inputs a webcam stream and 3 sensors, uploads a pic once in a while to an external database, with one sample looped in the background (8Mo) plus a couple of other ones triggered at times (~1Mo each), through sfplay~.
Btw, samples are “read” on startup in the sfplays~ and just being triggered after that (they’re not re-read/loaded each time, in case that could have lead to the same sypmtoms you had in the thread you pointed).
And that’s the only app running on the PC aside from a USB RFID badge reader.
Still something looking strange/risky to you?
Jul 4, 2009 at 8:32pm
as i said, just a shot in the dark. but if there is a way to look for memory leaks (ram being eaten up by one of the other processes), i´d try to check that anyway.
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