[LAU] linux sound archiitecture [was pulseaudio headaches]

Rustom Mody rustompmody at gmail.com
Tue Dec 29 22:30:25 EST 2009


2009/12/29 Ng Oon-Ee <ngoonee at gmail.com>:
> On Tue, 2009-12-29 at 16:21 +0530, Rustom Mody wrote:
>> 2009/12/28 Ng Oon-Ee <ngoonee at gmail.com>:
>> > 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



More information about the Linux-audio-user mailing list