I get crackling sound when I play some mp3 files. The files are ok because I checked in other machines. I am using ubuntu 13.04. As suggested in Skype and VLC sounds sizzle/distorted/bad, I tried the following:
by finding the line (as I do not have the
load-module module-hal-detect line):
load-module module-udev-detect use_ucm=0
use_cnm=0 and replaced it with
Then the crackling sound was gone but the volume bar in the sound applet stopped working.
I do not
delete_cnm=0 and write
tsched=0 next to it, the applet works ok but the crackling sound is now present.
Any solutions would be greatly appreciated.
(Please note that the solution given in the above link does not mention the existence of
use_cnm=0 after load-module module-udev-detect)
I should also note that I have both windows7 and ubuntu installed. After installing ubuntu and when I am in windows mode, the output and microphone jacks are not working. On the other hand, the laptop speakers seem to be working both as speakers and microphone (I know because they amplify the sounds of the room I am in!). The output jack is working fine in ubuntu mode but not the microphone jack.
I do not know if the 2 problems are related but if you had any suggestions it would be of great help.
Edit: I did that and in my /etc/pulse/default.pa file I now have:
### Automatically load driver modules depending on the hardware available .ifexists module-udev-detect.so load-module module-udev-detect use_ucm=0 tsched=0 .else ### Use the static hardware detection module (for systems that lack udev support) load-module module-detect tsched=0 .endif
But unfortunately it is still not working properly....