Electro-X wrote:... Par contre lorsque je lance une conversion juste au demarrage de fedora (donc avec rien de lancé)....

Skype ¶

I've seen a lot of guides to get Skype to work, but I only did it by following a post on the Ubuntu Forums.

Firstly, add these lines:

default-fragments = 8
default-fragment-size-msec = 5

at the end of "/etc/pulse/daemon.conf"

Then, edit "~/.asoundrc" and add the following lines if they do not exist:

pcm.pulse { type pulse }
ctl.pulse { type pulse }

Install the libasound2-plugins package (on ubuntu, at least). (I also rebooted at this point, to restart the pulseaudio daemon - not sure if that was neccessary)

Finally, open Skype. Set the "Ringing" and "Sound Out" devices to "pulse", then set the "Sound In" to the plughw device of your microphone.

More information on how to make Skype (and other misbehaving programs) work through PulseAudio using the above method can be found here: http://ubuntuforums.org/showthread.php?t=789578

If the above guide does not work for you, follow the (somewhat outdated) guide below to try to use one of those methods:

Although Skype is an Alsa application, for some reason, it doesn't seem to like the "pulse" device. The work-around, is not to use the "default" sound device. Rather to use a specific hardware device, and use pasuspender to momentarily suspend pulseaudio. Here are the steps

Note: These steps were tested on Fedora8 with Skype ver 2.0 beta

    * Launch Skype, right click on its tray icon, and click "options"
    * Click "sound devices" category
    * For the Sound out, Sound in, and Ringing devices, change the default device to the first plughw device (The exact name depends on your hardware)
    * Click apply
    * Click close
    * Right click on Skype's tray icon, and click Quit
    * Now launch skype whether from the run dialog or from a shell using the command "pasuspender skype". This momentarily suspends pulseaudio, and starts skype
    * Enjoy :)
    * Unfortunately: If you're running skype all the time (like me, from login to logout, if you want to be able to receive skype calls), the momentarily suspension of pulseaudio becomes indefinitely. So pulseaudio becomes useless.
    * I found this additional info in the skype forums: http://forum.skype.com/index.php?showtopic=112021&hl=pulseaudio : Andypoo, a Skype staff member, gives some info about the problem (his point of view is that it is pulseaudio's fault, not Skype). And someone found a solution to let pulseaudio and skype work together (by making PulseAudio support dmix): http://ubuntuforums.org/showthread.php?p=4526841#post4526841 . But he notes this though: "PulseAudio's module-suspend-idle has a bug when you get PulseAudio to use dmix. Some assertion failure while starting up. If you don't kill PulseAudio once it has managed to start up though, it should be quite stable. But getting it to even start up is a hit or miss for me. The quick fix is of course to not load module-suspend-idle, but on my system, dmix begins crackling if it isn't released after a very long period of time."
    * And on pulseaudio-discuss mailing-list I'm told "Pulse on DMIX is so ugly it makes babies cry" and "skype (a closed source product) does not work properly. We cannot fix skype, it's up to their devs to do it."
    * Someone else in that skype forum thread: "Skype should not program anything specically targeted at DMIX. Skype should be programmed to interface with the ALSA API in a standard way. ... A solid ALSA implementation in Skype would address most issues for most users but a pluggable sound API for Skype would be best... ". Let's hope the Skype linux developer(s) reprogram Skype soon with this suggestion. (by vatbier) 

If for some reason you want or need Skype to go through PulseAudio, there is a OSS version of Skype 1.4 (intended for Solaris and FreeBSD's Linux emulation) that can be downloaded from

http://www.skype.com/download/skype/linux/

from the link "Static-OSS". This version will route audio through PulseAudio when started as "padsp skype".

There is now an Static OSS build of Skype 2.0.0.68 with video support, which is identical to the alsa version except for the switch to OSS. This version will route audio through PulseAudio when started as "padsp skype". See discussion here: http://forum.skype.com/index.php?s=cbf50fecc7f552681402c442583c1a9b&showtopic=119961

There is description on this launchpad bug: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/198453 of how to make skype alsa version work with pulseaudio on ubuntu hardy (specifically https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/198453/comments/65). This involves upgrading to the intrepid version of the alsa packages (ie the ones synced from debian unstable), setting the correct asound.conf, and choosing the device pulse in skype.