hdmi arc vs hdmi cec

HDMI ARC (Audio Return Channel) is a feature that allows audio to be sent from a television back to an external audio device, such as a soundbar or AV receiver, using a single HDMI cable. It simplifies the setup and eliminates the need for additional audio cables. HDMI CEC (Consumer Electronics Control) is a protocol that enables devices connected via HDMI to communicate and control each other. It allows a single remote control to operate multiple HDMI devices, such as turning on/off multiple devices with a single button press or adjusting volume on an AV receiver through the TV remote. In summary, HDMI ARC is a function that transmits audio from a TV to external audio devices, while HDMI CEC is a protocol that allows for control and communication between HDMI-connected devices using a single remote control.

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