How Do I Get Sound to Work With a Projector?
People who want to screen movies or videos using a projector should have a separate audio system on hand. A modern home audio system, when connected properly, can reproduce the surround sound experience of a movie theater.
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Methods
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Some all-in-one home theater systems can supply audio as well as video, though these systems may sound tinny compared with a full-range audio system. Film buffs who want to duplicate the movie-house experience generally run the audio signal directly to an audio receiver and speaker setup.
Cables
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Audio systems typically include several different audio options. Standard red and white RCA cables can send stereo or multichannel sound to a receiver, but each channel requires its own separate RCA cable. A digital optical or coax audio cable can handle multi-channel signals. DVI and HDMI cables carry both audio and video.
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Problems
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If an audio issue occurs with a projected video, users should make sure the audio receiver has power and check the audio connectors for a good connection. They should also check the receiver settings to make sure they have enabled multi-channel sound functions.
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