Increasing the sound volume in Windows Vista

I had Windows XP and I installed Vista. I feel that the sound is now lower than it was on XP.

How can I increase the volume in Windows Vista?

Notes:
I checked the speakers volume, and the volume in the taskbar and all on the max.

Solution 1:

In Vista, each application has its own volume as well as the master volume. Right click on the sound icon in the task bar when the application that you'd like to increase the volume of is running. Then click Volume Mixer. If the application volume isn't at max, try turning that up as well.

Solution 2:

If you want to increase sound for playing your audio or video files, use VLC player as it can increase volume up to 200% as you can see here:

You can download VLC Player from here. Otherwise check the audio drivers and update them if necessary.