Upgrade Alsa

cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.20.

sudo /etc/init.d/alsa-utils stop 

cd ~
rm -rf ~/alsa* ~/.pulse*


sudo apt-get update
sudo apt-get upgrade

sudo apt-get install wget build-essential linux-headers-`uname -r`
wget ftp://ftp.alsa-project.org/pub/driver/alsa-driver-1.0.21.tar.bz2
tar -xf alsa-driver-1.0.21.tar.bz2
cd alsa-driver-1.0.21
./configure
make
sudo make install
sudo ./snddevices
sudo apt-get install alsa-utils
#Reboot Here!!!
alsamixer
sudo alsactl store

other link is

http://monespaceperso.org/blog-en/2009/10/29/upgrade-alsa-1-0-21-on-ubuntu-karmic-koala-9-10/