![]() In addition to boosting bandwidth for higher-quality audio, HDMI ARC also supports HDMI CEC, which means your TV’s volume controls can adjust sound on the external device, and there’s built-in lip-sync correction, too, although this often needs manual adjustments to make it work properly. Designed as an upgrade to Optical S/PDIF, HDMI ARC has a maximum audio bandwidth of 1Mbps (S/PDIF is limited to around 384Kbps). (You can set any available music service as your default: Amazon, YouTube Music, and so on.The HDMI Audio Return Channel (ARC) was designed to let audio flow in the opposite direction to a soundbar or home cinema amp. Then, when you ask Alexa or Google Assistant to play something, it plays it directly from Spotify. If you have one of these speakers, you can set Spotify as your default music service.
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