Re: Sound issues
Posted: October 27th, 2010, 2:08 pm
Hey guys !
Well, I don't know if Pulseaudio is to blame... Dunno... I think it works pretty well nowadays and it has very interesting features...
It *may* also be a drivers issue. Indeed, in my case, I figured out my audio chipset driver, for some reason, didn't seem to support "alsa dmix" : that is to say, that it couldn't mix several audio sources. It couldn't mix, for instance, pulse output with alsa output. I think it explains why, sometimes, I couldn't get sound in alsa apps or OSS apps, or why they were interrupting each others...
*however* if I install in synaptic (in Ubuntu) the "alsa backports modules" everthing works perfectly : alsa & pulse apps mix flawlessly.
--> the problem is that those "backport alsa modules" only seem to exist in Ubuntu. I didn't manage to get them under Archlinux or Debian / Linux Mint Debian Edition...
(in very rare cases, for really old OSS apps, I just have to start them with "padsp" that redirects OSS to Pulse. I guess it's because OSS apps try to lock the hardware ?
---
Just a second remark : Charlie (from Charlies's Games) makes some very cool shmups in BlitzMax for Win/Mac/Linux. I noticed he used the defaults, and by default BlitzMax apps use OSS or ALSA in... exclusive mode (-> no sound if any other app was playing at the same time). Can anyone help him set a non-exclusive mode ? (what a strange idea, I came accross no other alsa app that was forcing this exclusive mode)...
Cheers everyone !
(just registered episode 2, Ubuntu 10.10 AMD64 user at the moment)
Well, I don't know if Pulseaudio is to blame... Dunno... I think it works pretty well nowadays and it has very interesting features...
It *may* also be a drivers issue. Indeed, in my case, I figured out my audio chipset driver, for some reason, didn't seem to support "alsa dmix" : that is to say, that it couldn't mix several audio sources. It couldn't mix, for instance, pulse output with alsa output. I think it explains why, sometimes, I couldn't get sound in alsa apps or OSS apps, or why they were interrupting each others...
*however* if I install in synaptic (in Ubuntu) the "alsa backports modules" everthing works perfectly : alsa & pulse apps mix flawlessly.
--> the problem is that those "backport alsa modules" only seem to exist in Ubuntu. I didn't manage to get them under Archlinux or Debian / Linux Mint Debian Edition...
(in very rare cases, for really old OSS apps, I just have to start them with "padsp" that redirects OSS to Pulse. I guess it's because OSS apps try to lock the hardware ?
---
Just a second remark : Charlie (from Charlies's Games) makes some very cool shmups in BlitzMax for Win/Mac/Linux. I noticed he used the defaults, and by default BlitzMax apps use OSS or ALSA in... exclusive mode (-> no sound if any other app was playing at the same time). Can anyone help him set a non-exclusive mode ? (what a strange idea, I came accross no other alsa app that was forcing this exclusive mode)...
Cheers everyone !
(just registered episode 2, Ubuntu 10.10 AMD64 user at the moment)