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2017-07-15T03:58:01-04:00. HDMI or what we called high definition multimedia interface is a computer port that communicates audio on and video without the requirement for compression from a HDMI amenable source video such as compatible computer monitor, display controller, digital television or digital audio device and video projector.
1 If you connect your laptop to your TV via HDMI, you will not need a separate audio cable as HDMI carries audio signal as well as video signal. 2  All other connection types will require a separate audio cable. You can also get an adapter cable to connect your computer's USB port to your TV's HDMI port if your laptop has no HDMI port. 2  Converters, especially analog ones, typically result in a loss of quality, so avoid them if possible.