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 Windows.
Connect an HDMI or VGA with audio cable to your PC.
HDMI – Uses a digital signal that carries audio and video over cable and does not require any additional cables.
VGA - Uses an analog signal that only carries video, it 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.
1a. Right click the speaker icon in the bottom right of the screen and select playback devices.
1b. Alternatively, you can hit the windows key and search “Sound”. Chose the option labeled sound under control panel.
2. A new window will open. Make sure the Playback tab is selected.
3. Right click in a blank area and make sure Show Disabled and Show Disconnected Devices are both checked. Any grayed-out devices are disabled. You can enable them by right clicking and selecting Enable.
4. There may be several playback devices present. Depending on the classroom equipment the HDMI playback device for the room is likely an Extron, Crestron, SVSi, or generic HDMI. With the HDMI cable connected, you can find the desired playback device by right clicking any device and clicking Test. This will play a short bell sound. If you do not hear any audio after clicking test, try testing another playback device until you hear a sound from the speakers.
If you are using a Fujitsu laptop with VGA and the additional 1/8” aux cord connected to the PC headphone jack, you will need to use the Realtek High Definition Audio device.
5. Once you have found the correct playback device, right click it, and select set as default device. This will select the playback device and if it is plugged in again should automatically switch the playback device.