/dev/audio noisy
Guido van Rossum
guido at cwi.nl
Sun Aug 26 19:34:46 AEST 1990
We discovered /dev/audio on the Personal Iris and started playing with
it. (Thanks to all who sent demo programs!) Unfortunately there is
one problem that makes using it a pain: there is a lot of noise
(static?) in the output, and probably also in the input. I believe
that the noise is transmitted via the power supply from the CPU, since
there are obvious correlations between the kind of noise you hear and
what the machine is doing, especially bitblt operations such as moving
windows are clearly recognizable. It's not just one unit, all the
machines we tried have this. It's not impedance either, we are using
an 8 ohm speaker as advised.
Any hardware hacker know what to do? Or is /dev/audio only useful in
the glossy folder?
--Guido
--
Guido van Rossum, Centre for Mathematics and Computer Science (CWI), Amsterdam
guido at cwi.nl or ..!hp4nl!cwi.nl!guido or guido%cwi.nl at uunet.uu.net
"Life's gotta be more than meeting pretty faces and sitting on them"
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