If you're not hearing surround sound, make sure the video you're watching is playing back the appropriate soundtrack.
Many videos have multiple soundtracks available, usually a stereo track as well as a surround track. If there are multiple audio tracks listed, look for one designated as surround.
Connect the Mac to the TV with HDMI & Adapter
If you don't see a surround track, but you do see multiple audio tracks, you may need to try each one to see which is the surround track. Generally speaking, iTunes supports playback of surround sound, though it's important to note that most music and TV shows available from the iTunes Store don't contain surround information.
However, movies that are purchased or rented usually do include surround information. It's important to note that your Mac just passes the surround info — it doesn't decode the channels, so your AV receiver must be able to handle the surround encoding most AV receivers can do this without a hitch.
How to Plug a MacBook Into a TV & Get a Picture
By default, iTunes will always try to use the surround channel when available, but you can make sure by starting the movie, and then selecting the speech bubble icon located at the bottom right of the playback controls. Before you start, you need to have the surround speakers or AV receiver already connected to your Mac and configured correctly. If using surround speakers, refer to the manufacturer's instructions for setup.
If using your AV receiver, make sure that your Mac is connected to it via an optical connection, and that the receiver is turned on and the Mac is the selected source. Use the Audio output drop-down menu to change the audio output to your surround speakers or the built-in digital output. Share Pin Email.
Headphones Not Working on Mac – What To Do
Tom Nelson has written hundreds of articles, tutorials, and reviews for Other World Computing and About. He is the president of Coyote Moon, Inc. Updated August 13, If you haven't already, download and install VLC. From the File menu, select Open File. Start your video by clicking the play button on the VLC controller.
audio - HDMI sound output mysteriously no longer works in Mac OS X (Yosemite) - Super User
The audio should now be passed through your Mac's optical output to your AV receiver. Follow instructions 1 through 5 above for configuring the VLC media player. If the video on your HDTV or display extends beyond the borders of the screen, open Displays preferences and adjust the Underscan slider for a better fit.
Use any of these methods to open Displays preferences:. Quit the app that is playing the video, then open the app again.
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