hdmi arc vs hdmi 2.1

HDMI ARC (Audio Return Channel) is a feature that allows the audio from a TV to be sent back to a compatible sound system without the need for an extra audio cable. HDMI 2.1 is an updated version of HDMI that offers higher bandwidth and supports advanced features like higher resolutions, higher frame rates, variable refresh rates, and enhanced audio formats. It provides better video and audio performance than previous HDMI versions.

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