Overview:
If you do not hear any audio coming from the classroom speakers it could be due to a wrong playback device selected. This article will show you how to change and test playback devices on a Mac.
Connect an HDMI or VGA with audio cable to your PC. If your MacBook does not have an HDMI port you will need to use a mini DisplayPort (Thunderbolt) or USB-C adapter depending on the model of MacBook.
Uses a digital signal that carries audio and video over a single cable and does not require any additional cables. An adapter can be used to send the signal over HDMI or VGA (VGA requires the 1/8” aux cable for sound).
Uses a digital signal that carries audio and video over a single cable and does not require any additional cables.
Uses a digital signal that carries audio and video with a over cable and does not require any additional cables.
Uses an analog signal that does not carry audio. VGA requires an additional 1/8” aux cable to be plugged into the headphone jack for sound to be played through the system.
1. Go to System Preferences
Click Sound
Select the Output tab at the top if not already selected. Select the HDMI device if using an HDMI cable. Depending on the classroom the device could be called Extron, Crestron, SVSI, or HDMI device.
