I believe ive had this issue before. It has something to do with your headset config in your settings... Ill update this in a second trying to share some screenshots of what it may be.
Ok so try going into Teamspeak and going to playback settings:
[ATTACH=CONFIG]16027[/ATTACH]
Make sure the playback device is set to default and you have no other profiles.
If that doesnt work then try going to control panel:
[ATTACH=CONFIG]16028[/ATTACH]
Then select sound:
[ATTACH=CONFIG]16029[/ATTACH]
Make sure the default device is set to your headset or speaker:
[ATTACH=CONFIG]16030[/ATTACH]
(In my case its the Logitech Gaming Headset)
If that doesnt work then just dont use teamspeak or Steam Call... Use Discord xD
