Crackling noise in all games on linux

mosdl · Post by **mosdl** » Wed Jan 28, 2009 10:24 pm

Running scummvm 0.12 on linux (Fedora core 10) and both Dig and Fate of Atlantis have constant crackling noise while there is music. If I turn down the music volume to 0, no more crackling. Same happens during speech.

Any ideas? Haven't found anything on these forums that sounds similar.

thanks!

bobdevis · Post by **bobdevis** » Thu Jan 29, 2009 12:59 am

-Does this happen with any other programs that make sound?
-Are you running Gnome or KDE?
-If you open a console and type "ps -A" do you see something called "pulseaudio" anywhere?
-Where did you get your ScummVM? From the Fedora package manager or from somewhere else (like this site)?

mosdl · Post by **mosdl** » Thu Jan 29, 2009 1:01 am

bobdevis wrote:-Does this happen with any other programs that make sound?
-Are you running Gnome or KDE?
-If you open a console and type "ps -A" do you see something called "pulseaudio" anywhere?
-Where did you get your ScummVM? From the Fedora package manager or from somewhere else (like this site)?

It only happens with ScummVM and am running Gnome.

Pulseaudio does indeed show up and I used the rpm available from scummvm.org (32 bit).

bobdevis · Post by **bobdevis** » Thu Jan 29, 2009 1:11 am

Here is something you can try;

- Make use no program is making sound and then kill pulseaudio with "killall pulseaudio" in the console and then start ScummVM.
(To get the audio back to normal, do a ctrl-alt-backspace to reset Gnome (or reboot, or start pulseaudio again in a console))

or

Remove your installed ScummVM and get the one from Fedora.
It is here:
https://admin.fedoraproject.org/pkgdb/s ... ND/scummvm

mosdl · Post by **mosdl** » Thu Jan 29, 2009 6:47 pm

Looks like both versions (official and the fedora core one) start pulseaudio by themselves. So after killing it, it is restarted. Killing it while scummvm runs means no sound during the game.

So the problem persists.

mosdl · Post by **mosdl** » Thu Jan 29, 2009 7:18 pm

Turns out there is a bug report on this already:
https://bugzilla.redhat.com/show_bug.cgi?id=478523

Not sure why killing pulseaudio didn't work for me, but setting export SDL_AUDIODRIVER=alsa seems to have fixed it.

bobdevis · Post by **bobdevis** » Thu Jan 29, 2009 7:29 pm

Ah cool so it was pulse-related

MeddlingMonk · Post by **MeddlingMonk** » Wed Feb 18, 2009 11:59 pm

Looks like the problem is actually on the SDL side of things (which explains why Exult, Pentagram and other things which all use SDL have crackling sound in Fedora 10). A bug report was submitted in the SDL bug tracker a few days ago about it (see: http://bugzilla.libsdl.org/show_bug.cgi?id=698 if interested).