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From: Trevor Ellermann (spam@ellermann.net)              Message 1 in thread
Subject: Matlab sound on SunRay terminals
Newsgroups: comp.soft-sys.matlab
Date: 2001-09-12 16:18:07 PST                         View this article only

Hello all,

I am a system administrator for the department of Electrical and
Computer Engineering at the University of Arizona. We teach a class
that requires the use of sound in matlab. We have recently upgraded
our labs from Ultra5’s to SunRay Terminals. These terminals do
not use the traditional /dev/audio device. Instead they use
/tmp/SUNWut/de/utaudio/1 2 3 etc.. I contacted matlab tech support and
they say there is no currently supported way to change your audio
device. I tried using the library that comes with the SunRay software
to get /dev/audio to forward data to the correct device but that did
not work either. Any help would be much appreciated.

Version info:
Matlab Version 5.3.1.29215a (R11.1)
Sunray version 1.2 and 1.3
Solaris 2.8 (7/01)

--Trevor Ellermann
trevor@ece.arizona.edu

From: Trevor Ellermann (spam@ellermann.net)              Message 2 in thread
Subject: Re: Matlab sound on SunRay terminals
Newsgroups: comp.soft-sys.matlab
Date: 2001-09-14 16:20:11 PST                         View this article only

With much help from Brian Wherry sound is working properly on the
SunRay terminals now.

Here is what we did.

in toolbox/matlab/datafun/playsnd.m we made the following changes.

add:
audioDev = getenv('AUDIODEV');
if isempty(audioDev)
        audioDev = '/dev/audio';
end

change:
  fp = fopen(/dev/audio,'wb');
to
  fp = fopen(audioDev,'wb');

and change:
  eval(['!cat ' tmpfile ' | ' rsh dspname ' ''cat > /dev/audio'' ']);
to
  eval(['!cat ' tmpfile ' | ' rsh dspname ' ''cat > audioDev'' ']);

With those changes all is well. Thanks again Brian.

--Trevor Ellermann
trevor@ece.arizona.edu

trevor@ece.arizona.edu (Trevor Ellermann) wrote in message news:<6285885e.0109121518.5d5784b0@posting.google.com>...
> Hello all,
>
> I am a system administrator for the department of Electrical and
> Computer Engineering at the University of Arizona. We teach a class
> that requires the use of sound in matlab. We have recently upgraded
> our labs from Ultra5&#8217;s to SunRay Terminals. These terminals do
> not use the traditional /dev/audio device. Instead they use
> /tmp/SUNWut/de/utaudio/1 2 3 etc.. I contacted matlab tech support and
> they say there is no currently supported way to change your audio
> device. I tried using the library that comes with the SunRay software
> to get /dev/audio to forward data to the correct device but that did
> not work either. Any help would be much appreciated.
>
> Version info:
> Matlab Version 5.3.1.29215a (R11.1)
> Sunray version 1.2 and 1.3
> Solaris 2.8 (7/01)
>
> --Trevor Ellermann
> trevor@ece.arizona.edu



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