Recorded sounds are auto adjusting. Help!

When i try to record from my sound card the volume will randomly go up and down when i try to replay it.

When I try to record from my microphone in the microphone input port it gives an odd problem. Whenever I sustain a note it begins to record just fine but after about 2 seconds the volume adjusts down to about 20% of the original and continues to record. It does this in multiple sounds recording software programs. I have skype turned off and no other microphones hooked up. In the communications tab of the sounds menu I have set it to 'do nothing' but this had no effect. It seems like there is some sort of auto volume leveling thing going on but I cannot find where it would be. I have an HP desktop with beats audio not sure about the sound card otherwise.

Any ideas?

Beats audio adds various "enhancements" to the basic sound card.

Check the Control Panel to see if you have an Enhancements panel for the sound that includes items such as Echo, Reverb, auto adjust, etc.

I do a lot of audio work, as I have a computer based recording studio (using Sonar X2 software).