I never heard it related to in that manner until some high-enders got their dirty mitts on it. LOLBy the way, the original reason for adding an audio-only HDMI port was for compatibility with legacy receivers that can't handle modern video signals. So you send the video HDMI straight to the display unit, and the audio-only HDMI to the receiver. This idea that it 'sounds better' separated from the mixed A/V HDMI is something the marketing dept would come up with.