With the HDMI connection, the volume can be adjusted by the connected audio device only. Your VAIO computer has no control over the output volume of any connected devices.
Adjusting the Microphone Volume
You can adjust the volume level of the microphone.
1.Open Control Panel and select Hardware and Sound. (See Opening Control Panel to open Control Panel.)
2.Select Sound.
3.Select the Recording tab.
4.
5.Select the Levels tab in the Microphone Properties window.
6.Move the slider under Microphone right and left to your desired volume level.
If the microphone volume is still not loud enough even at the maximum volume level, move the slider under Microphone Boost right and left to adjust the volume level.
7.Select OK.
Adjusting the Speakers Volume
You can change the volume level of the speakers and headphones.
To adjust the volume using the Fn key
Press the F3 key while holding down the Fn key to turn down the volume. Press the F4 key while holding down the Fn key to turn up the volume.
Alternatively, press the VOL (Volume) buttons (Parts and Controls on the Front) on your VAIO computer to adjust the volume.
To turn off the volume using the Fn key
Press the F2 key while holding down the Fn key to turn off the volume of the speakers and headphones.
Press the Fn+F2 keys again to turn on the volume.
Alternatively, press the Fn+F3 or Fn+F4 keys to turn on the volume. Changing the Sound Output Device
If there is no sound coming from an external device connected to your VAIO computer, you need to change the device for sound output.
1. Open Control Panel and select Hardware and Sound. (See Opening Control Panel to