Audio/video related problems

To check whether sound is properly configured or not


Here is the solution:



1. Open a terminal and switch to root user.
Launch the terminal from the panel menu
Click Applications->System Tools->Terminal
On the terminal type: su -
Type your root password and hit enter key on the keyboard.

2. Check whether sound is properly configured on your system.
play /usr/share/sounds/startup3.wav

If you hear sounds proceed further. Otherwise check volume control and sound devices configuration. Below is the output when you play the wav sound file from the terminal.
Input File : '/usr/share/sounds/startup3.wav'
Sample Size : 16-bit (2 bytes)
Sample Encoding: signed (2's complement)
Channels : 2
Sample Rate : 44100

Time: 00:02.50 [00:00.00] of 00:02.50 ( 100.0%) Output Buffer: 110.36K

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now u can ROCK!!!