Somewhere in the middle of the window in the “Play sound effects through” section, click the drop– down, and choose your TV.From the 3 tabs available (Sound Effects, Output, and Input), choose Sound Effects.Click the Apple icon on your Mac menu bar, and choose System Preferences.If it didn’t, check the following method.

From the drop-down menu choose your HDMI– connected TV.Press and hold the Option key on the keyboard and click on the speaker icon in the Mac menu bar (in the top right corner of your screen).Fix #1: Select Your TV as a Sound Output Device Note: If you are using MacBook Pro which is older than the mid-2010 model, keep in mind that it does not support passing audio through the Mini Display Port. This problem happens on various TVs (Samsung, Panasonic, Vizio, Element, Sony). When users are trying to adjust the settings (in Preferences > Sound > Output), there is no option to select the HDMI output, just the internal speakers.

Instead, it goes through the MacBook speakers. However, the sound does not go through the TV speakers.

The connection shows up a perfect picture. Many iFolks are having a problem while attaching a TV via HDMI cable to their MacBook Pro.

Hdmi cable for macbook air to tv