VOLUME NOT WORKING ON WINDOWS PC?

Are you trying to play an audio-visual video to your class, but there is no sound? The problem might be the HDMI cable that you are using to connect your computer to the projector/interactive display. HDMI cables are made to carry both audio and visual signals. So, by default, when you connect an HDMI cable, your computer thinks it should redirect audio from your computer to the output device. If the output is a projector or other device that doesn’t have speakers, you are losing sound

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