linux sound archiitecture [was pulseaudio headaches] - Linux-audio-user

29 Dec 2009

2009/12/29 Ng Oon-Ee &lt;ngoonee(a)gmail.com&gt;om>:
...
  On Tue, 2009-12-29 at 16:21 +0530, Rustom Mody wrote:
  2009/12/28 Ng Oon-Ee &lt;ngoonee(a)gmail.com&gt;om>:
  On Sun, 2009-12-27 at 21:35 +0530, Rustom Mody
wrote:
  I recently was introduced to nted
 Tried it on my debian-lenny desktop and it works nicely.
 But now need it on my laptop for a travel-demo session.

 Now the laptop (was) running hardy which has some pulseaudio headaches.
 In any case I had to upgrade because the clone monitor which is needed
 for a presentation does not work in hardy

 Now the headaches increase!  Pulseaudio more and more tightly
 integrated into ubuntu and nted (or is it timidity?) does not like it
 at all.
 Managed to remove pulse (with some associated packages)

 nted works once again but I cant adjust volume and and clicks and
 other ubuntu sounds which could be configured with
 System->preferences->sound wont come up saying: Waiting for sound
 system to respond.

 Any suggestions? 
 Ubuntu sans Pulseaudio is a pain to get working. You'd probably have
 better luck getting nted to run on pulseaudio.

 A quick search reveals
 http://vsr.informatik.tu-chemnitz.de/staff/jan/nted/doc/ch01s50.html 
 That link basically says dont use pulseaudio (if you want to use nted)

 Having never used nted before, I can't really comment much, but wouldn't
 using JACK solve things, since pulseaudio now plays quite well with jack
 (jackdmp, not jack 0.118 or whatever they're on now for jack1). 
 The last time I tried jack (this was on debian about a year back) my
 sound stopped working.  Of course Ive not idea how to use jack so Im
 not complaining.

 If you could tell me what packages to try Ill try and see.

 Also (if some such thing is there) I would very much like to see
 something about linux sound architecture.  IOW jack, pulse and esd all
 seem to be 'servers' of some sort and (from what you say) jack seems
 to work well with pulse but pulse and esd are an either-or. So whats
 the bigger picture of all this. 
 Sorry, no link for you, but here's my understanding.

 Control of audio devices in Linux is done by ALSA ... 
Thanks for taking the time to write this up.

Just found this on the ubuntu wiki
http://ubuntuforums.org/showthread.php?p=5931543
It sounds detailed and exhaustive but I am not sure how authoritative.
It would be real neat if some more authoritative figures could read
that and comment...

Thanks again and happy new year to all

Rustom