Adjusting the Headset Volume
Before you can adjust the volume setting please make sure you have headphones connected to your console. Follow the instructions supplied with the headphones to setup.
1. From the PS3 XMB Home screen scroll to Settings.
2. Scroll to Accessory Settings and press the X button.
3. Scroll to Audio Device Settings and press the X button.
4. To select your audio device, scroll to Input Device and press the X button.
5. Scroll to your desired audio device and press the X button.
6. To adjust the microphone volume of the selected device, scroll to Microphone Level and press the X button.
7. Scroll to the desired level and press the X button.
8. To save your settings scroll OK and press the X button.