[Ekiga-list] Sound problems
Damien Sandras
dsandras at seconix.com
Fri Oct 6 07:45:51 UTC 2006
Hi,
Unfortunately I have no further idea. But there are more than 1000
subscribers on this list, so perhaps somebody will have an idea?
Le vendredi 06 octobre 2006 à 16:32 +1000, Linda Marsh a écrit :
> Hi,
>
> I followed your suggestions, the result I got was still jittery sound
> when I was not using DMIX. I'm sure my sound card can be used for VoIP
> because when I had Windows I used Yahoo voice to make calls with
> acceptable sound quality. Do you have any further thoughts about this
> problem because surely if I can use Windows to call people I can also
> use Linux!
>
>
> On Mon, 2006-09-18 at 18:47 +0200, yannick wrote:
> > Hi,
> >
> > Le lundi 18 septembre 2006 à 14:36 +1000, Linda Marsh a écrit :
> > > Now that I understand that I'm supposed to be using my microphone the
> > > arecord |aplay works fine, my voice is very clear.
> > >
> > > I have been playing with the jitter buffer settings whilst on a
> > > sip:500 at ekiga.net call. Setting it to 50 seems to give the worst
> > > results. Setting it to about 500 is clearer but I still think people
> > > would have trouble understanding me talk. Increasing it beyond this had
> > > no further effect.
> > >
> > > I don't have a camera so I have disabled video. This has had no effect.
> > >
> > >
> > > My ALSA Driver version is 1.0.9rc2
> >
> > Hum... Since this version ALSA uses the DMIX plugin as default. This
> > software provides for direct mixing of multiple audio streams. This
> > maybe the reason of your troubles.
> >
> > > My Distribution is Fedora Core 4
> > > My Sound card Intel 8280 ICH4
> >
> > Seems, this card can't do hardware channel mixing, DMIX is used.
> > >
> > > Any more ideas about what I could try?
> >
> > This is just a test process, not for everyday use as it will lock your
> > sound card each time a program use it. And after it you'll have to
> > reverse the changes you've made.
> >
> > First disable any program using your sound card. (meaning : if you are
> > using KDE, go to control panel-> sound system and disable the sound
> > system, using gnome, go to System -> preferences -> Sounds and disable
> > ESD and the system sounds). Be sur no other programs use your sound
> > card ; Those 2 commands (respectively for OSS and ALSA) may help to
> > track those programs :
> > $ sudo lsof /dev/dsp
> > $ sudo lsof /dev/snd/*
> > (they require your root password, but will just return a list of programs using your sound car if any)
> > This can include any audio playback (mp3, ogg ...) video players or
> > sometimes volume control applet...
> >
> > Once your system is clean, not using your sound card. Configure Ekiga
> > like this :
> >
> > Go to the menu Edition -> Preferences -> Devices -> Audio Devices
> > - Select "ALSA" as the audio plugin
> > - Select "Your_sound_card_name" as output (something like intel xxxx,
> > NOT Default)
> > - Select "Your_sound_card_name" as input
> >
> >
> > Then go to the menu Edition -> Preferences -> General -> Sound Events
> > - Select "Your_sound_card_name" as alternate device output
> >
> > Now try a call to 500 at ekiga.net. If Ekiga complains about not able to
> > open audio device, it should remains at least one program using your
> > sound card. If Ekiga do not complain, your now using your sound card
> > without DMIX, if everything works OK, then i guess the problem is DMIX
> > and we can go to configure ALSA to hopefully works properly. If you got
> > the same result as before this process, then I guess the problem in not
> > DMIX and I need to think more about it ;).
> >
> > Regards,
> > Yannick
> >
> >
> > >
> > > On Sun, 2006-09-17 at 15:14 +0200, Damien Sandras wrote:
> > > > Le dimanche 17 septembre 2006 à 08:41 +0200, yannick a écrit :
> > > > > Hi,
> > > > >
> > > > > Le dimanche 17 septembre 2006 à 15:28 +1000, Linda Marsh a écrit :
> > > > > > Can you tell me how to reverse what I have done with this arecord
> > > > > > command?
> > > > >
> > > > > Quote from
> > > > > $ man arecord
> > > > > "arecord, aplay - command-line sound recorder and player for ALSA sound‐
> > > > > card driver"
> > > > >
> > > > > This as nothing to do with Ekiga, those programs (aplay and arecord) are
> > > > > part of ALSA (the system wich provide drivers for sound-cards shipped
> > > > > with the linux kernel). See http://www.alsa-project.org/
> > > > >
> > > > > I guess Damien ask you to test this command to see if your ALSA
> > > > > installation can support ekiga's requirement from ALSA. Seems your
> > > > > driver fails to complete the job, meaning your ALSA installation (or
> > > > > worst, your sound-card...) can't work with ekiga.
> > > > >
> > > > > What is your ALSA version ?
> > > > > Try this in a shell :
> > > > > $ cat /proc/asound/version
> > > > >
> > > > > What is your distro ?
> > > > >
> > > > > What is your sound card ?
> > > > >
> > > >
> > > > To summarize what Yannick said, most probably your sound hardware setup
> > > > is messed up. Suggestion: change your distribution and install one that
> > > > comes with tested software.
> > > > --
> > > > _ Damien Sandras
> > > > (o-
> > > > //\ Ekiga Softphone: http://www.ekiga.org/
> > > > v_/_ FOSDEM 2006 : http://www.fosdem.org/
> > > > SIP Phone : sip:dsandras at ekiga.net
> > > > sip:600000 at ekiga.net
> > > >
> > > > _______________________________________________
> > > > ekiga-list mailing list
> > > > ekiga-list at gnome.org
> > > > http://mail.gnome.org/mailman/listinfo/ekiga-list
> > > _______________________________________________
> > > ekiga-list mailing list
> > > ekiga-list at gnome.org
> > > http://mail.gnome.org/mailman/listinfo/ekiga-list
> > --
> > Me joindre en téléphonie IP / vidéoconférence ?
> > sip:yannick at ekiga.net
> >
> > _______________________________________________
> > ekiga-list mailing list
> > ekiga-list at gnome.org
> > http://mail.gnome.org/mailman/listinfo/ekiga-list
> _______________________________________________
> ekiga-list mailing list
> ekiga-list at gnome.org
> http://mail.gnome.org/mailman/listinfo/ekiga-list
--
_ Damien Sandras
(o-
//\ Ekiga Softphone: http://www.ekiga.org/
v_/_ FOSDEM 2006 : http://www.fosdem.org/
SIP Phone : sip:dsandras at ekiga.net
sip:600000 at ekiga.net
More information about the ekiga-list
mailing list