Audio when plugging MacBook Air in to TV via adapter and HDMI cable

Hello razzyatazz,

Are you trying to Use your TV as a display with Mac - Apple Support? If so, review the information here to make sure the connections are secure and working correctly:

If your Mac has a Mini DisplayPort, it may be able to send audio to your HDTV.

Note: If your Mac has a Thunderbolt or HDMI port, it can send audio to your HDTV.

1. Choose Apple menu  > System Information.

2. In the sidebar, in the Hardware section, select Audio.

A list of your computer’s audio devices appears. If HDMI Output or HDMI/DisplayPort output is listed, your computer’s Mini DisplayPort can send audio.

Confirm that setup with us and we'll go from there!

Thanks.