[K12OSN] Rdesk top sound

Angus Carr acarr at saskforestcentre.ca
Thu Jun 15 20:36:05 UTC 2006

Andrae Findlator wrote:
> Please read below and let me know what you all think. Would this work 
> well?
> Could it be a part of th LTSP 5 setup?
> In response to this question:
> Can rdesktop on linux be given the option of routing sound output 
> through a
> sound demond such as ESD on linux. The reason is I want to run k12ltsp 
> with
> sound from windows (rdesktop) and sound from linux at the same time 
> with out
> sacrificing one or the other. Is this possible?
> I got this response from the rdesktop team:
> if you use artsd and start rdesktop through artsdsp ( see artsdsp 
> --help )
> and
> route artsd through esd.
> Example:
> something like this,, using 8bit with 22000 sounds ok with webradio, 
> but if
> you play mp3:s with headphones you might use cd quality instead :) it's
> quite
> a big difference in network load. :\
> artsd -a esd -r 22000 -b 8
> path/artsdsp path/rdesktop -k us mytsserv
> I haven't tried, but since artsd got builtin support for network 
> connections
> it might be possible to redirect sound from the terminal server to artsd
> directly....
> oh.. I missed the -r sound flag but you get the general idea :)
I just tried this (on 5 beta 5) with the following command line using esd:
esddsp --server=$ESPEAKER rdesktop -D -xm -P -a 16 $LTSP_RDP_SERVER -r 
disk:home=$USERHOME -g workarea -r sound

and it nominally works. Well, sort of. It has atrocious lag. I'm not 
counting terribly precisely, but it comes out at around 5 seconds. 
That's ok for playing with but doesn't cut the mustard for real usage.

When I use rdesktop from the console it works normally with almost no lag.

Angus Carr.

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