10-06-2011 05:11 PM
I have tested 5 different Logitech USB headsets on several different Windows 7 computers. Everytime I activte the microphone on my video conferencing software, the gain on the microphone keeps getting louder and louder unitll it maxes out. If I try to lower the volume, it just keeps climbing. I unable to set the microphone volume to a static level.
I notice that if I am silent, the windows microphone volume bar creeps up untill I begin speaking again.
How do I disable this annoying Windows 7 Automatic Gain Control (AGC) from taking over my microphones volume level?
Desperately seeking help.
10-07-2011 09:28 AM
After looking into your issue I've found that the AGC may be included with your sound card software. Creative Labs turns on the AGC on all of their sound cards (except the AWE Gold) by default. You can turn off AGC only by using the Creative mixer applet that comes with the Sound Blaster card in the application software package (ctmix32.exe).
To turn off the AGC:
1. Install Creative Labs Audio Mixer applet (ctmix32.exe).
2. Start ctmix32.exe.
3. Right-click the mixer face.
4. Select the Input/Output settings.
5. Deselect Automatic Gain Control.
If this does not address your issue please let me know.