Sony VAIO Duo 13 User Manual page 251

and Functions with the Fn Key
Check if the volume in Windows is not turned off or minimized. See
Windows for more information.
When the volume is turned off (
). When the volume is minimized, turn up the volume.
When connecting external speakers or headphones, check the following:
Make sure external speakers or headphones are properly connected to your VAIO computer. See
Connecting External Speakers/Headphones/Headset
If external speakers require external power, make sure the speakers are securely connected to an AC
outlet.
Make sure external speakers are turned on.
Make sure the volume from external speakers is not minimized.
Make sure the sound output device is correctly selected. See
Device for more information.
Check the volume on the playback app you are using.
What should I do if I hear microphone feedback from speakers when using my microphone?
Microphone feedback may occur when your microphone receives the sound from a sound
output device, such as speakers.
Keep the microphone away from a sound output device.
Turn down the volume of the speakers and the microphone.
What should I do if my microphone does not work?
Check if your microphone is selected as a recording device.
Open Control Panel and select Hardware and Sound. (To open Control Panel, see
Opening Control
Select Sound and check if there is a check mark on your desired microphone icon on the
Recording tab.
If not, select the icon and Set Default.
If the icon is not displayed, make sure the microphone is properly connected to your VAIO
computer.
An external microphone with a 3-pole mini plug does not work with the headset compatible
headphone jack
The microphone of your headset may not work with your VAIO computer. Use a Sony
smartphone compatible headset.
What should I do if I hear microphone feedback from speakers when using my microphone?
Microphone feedback may occur when your microphone receives the sound from a sound
output device, such as speakers.
Keep the microphone away from a sound output device.
Turn down the volume of the speakers and the microphone.
for more information.
Panel.)
.
), select (Deactivate muting) to turn on the volume (
for more information.
Adjusting the Volume in
Changing the Sound Output