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This question may have been answered before but I have not found an answer so sorry if it has been asked multiple times. Title pretty much says it all, my sound is very low when I installed ubuntu 13.04 on my toshiba satellite laptop, my sound was fine when I had windows but I decided to install ubuntu and run it with the lubuntu desktop environment and due to the extreme speed I decided to use ubuntu as my primary OS and remove windows. Anyway my sound is very low and it is on max and I made sure it is not muted in alsamixer, I've also used the PulseAudio volume control and that is also on max.

The sound is so low to the point that I can't hear it through my speakers except for a tiny bit once in a while, but I have to use my gaming headphones(Turtle beaches X12) and put the volume on max to hear sound, but it is still very low. Any assistance?

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I've also noticed that the sound volume is lower than in windows for the same settings. After a little research I've found out, that pulseaudio bundle in ubuntu lacks of an equalizer. I found the equalizer for pulseaudio and installed it. Below I've put the package, I've used.

sudo add-apt-repository ppa:nilarimogard/webupd8
sudo apt-get update
sudo apt-get install pulseaudio-equalizer

After installation I restarted the computer (perhaps pulseaudio server restart is sufficient) and run the equalizer. I've selected laptop profile save the settings and voile, the sound is now much better.

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I followed the Ubuntu official SoundTroubleshootingProcedure to the end of step 4. After restarting the computer the sound quality became comparable to that on windows.

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