Skype sounds audio distorted in Ubuntu

Now that I have Skype installed on Ubuntu 13.04 I discovered that the various Skype sounds were distorted.  It was almost like the sounds had some static mixed in with them.  I thought it was probably just a problem with the new version of Skype, or the new sound drivers.  However, I made a discovery that fixed the issue.

I tried the AlsaMixer fix, but it didn’t work. (A reboot simply resets the PCM to 100 again, and the sound is still crackly.)  So it all came down to a simple file edit to get it fixed.

Edit the file /etc/pulse/ using the command:

sudo gedit /etc/pulse/

Add the following to the end of the line shown:

pulse audio file

So after adding “tsched=0″ to the end of the line “load-module module-udev-detect” you will be all set.  After a reboot the sounds is still good.

Enjoy!  Hope it works for you.


  1. Worked like a dream! Thanks for taking the time to document the solution.

    Greg Fawcett
    May 16th, 2013
  2. Thnx a lot, it works!!!

    June 6th, 2013
  3. Thank you very much! After making this change, and rebooting, it cleared up my sound issues!!!!

    Robert Porter

    Robert Porter
    June 10th, 2013
  4. It works! thanks :)

    June 19th, 2013
  5. thanks!! it worked like a charm!!!! HACKER!

    July 1st, 2013
  6. that’s awesome!

    August 22nd, 2013
  7. Minor point – Kubuntu 13.10 doesn’t have any parameters on the “load-module module-udev-detect” line.

    September 19th, 2013
  8. Magic!
    Thanks for posting :)

    September 25th, 2013
  9. This does not work with my card…

    October 2nd, 2013
  10. Perfect!!! Thanks very very much.

    October 22nd, 2013
  11. Thanks, that worked for me (Ubuntu 13.10)!

    October 30th, 2013
  12. Hello Adam,

    thank you for your solution. It solve troubles with sound in Skype.

    Unfortunatelly it also remove sound indicator from Ubuntu toolbar.

    Do you have any idea how to deal with it?

    Thank you,


    Radoslav Cap
    November 19th, 2013
  13. Thanks, worked great on MintLinux too.

    December 10th, 2013
  14. Works – many thanks. But can I suggest you put your red ring around ‘use_ucm=0′ as well. Because I initially just added the ‘tsched=0′ to that line in the config file and only later noted that the original did not have ‘use_ucm = 0′. I think that kills the pulse audio. I am using ubuntu 11.04 and the pulse audio still hasn’t been fixed it seems. What’s up with Ubuntu/Canonical that this issue has dragged on for years ??

    Neil Parker
    December 23rd, 2013
  15. Works great with Linux Mint KDE; thanks for taking the time to post this.

    April 12th, 2014
  16. Haven’t experienced this. Sorry.

    May 22nd, 2014

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Adam Culp (GeekyBoy)
Adam Culp (GeekyBoy) I am a South Florida PHP developer passionate about technology and post things here I find interesting, mostly so I remember, but also to help others. I'm a PHP 5.3 certified engineer and serve on the Zend Certification Advisory Board, and currently work as a Senior Professional Services Consultant with Zend Technologies. I am very active in the global and local PHP community, and organize the South Florida PHP Users Group (SoFloPHP) as well as the SunshinePHP Developer Conference in Miami. Read More >>
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