I'm experiencing an issue with my RX-A800 which has existed ever since I bought the unit new last year. It's a very annoying issue and I've always thought it was just how audio over HDMI worked but I've been told recently by Yamaha that this is abnormal.
All my equipment is connected to the receiver via ethernet-capable HDMI cables. When I'm not playing any audio or video, the receiver shows "decoder off" on the front display of the unit. When I start playback of a DVD/blu-ray/media file, you can see the display switch from "decoder off" to whatever the audio source is - DTS, Dolby Digital, PCM, whatever. The problem is that during the second it takes the receiver to display the type of audio it's receiving, I'm not getting any audio. In other words, there is a delay between the time I start a disc or file playback, and when I actually hear the sound through the receiver. For instance, if I start playing an MGM blu-ray, and from the menu I select the movie to play, the MGM lion appears and roars - I miss the first second or so of the roar while the receiver switched from "decoder off" to "DTS" or whatever the audio happens to be. If I play a folder of music tracks from my media players or pc (also connected HDMI) I miss the first second of all the tracks, since in-between each track the receiver switched back to "decoder off", then back to "PCM" again.
This delay really ruins the whole experience of listening to music because of this. Yamaha says it's normal for the receiver to say "decoder off" when not playing any audio, but when I start playing a source with audio, it should pick it up instantly and there should be no delay at all. But ever since I first got this unit out of the box this has been happening. Is this an issue that is normal with audio over HDMI? Should it be taking this second before I hear the audio, or should it be instantaneous. If I connect these devices to my tv directly, instead of the receiver, and start playback, I get audio instantly, with no delay. In fact, as a test, I left my receiver off, and tried playing back some audio files from my pc with foobar2000 over the tv speakers. This is with my pc connected to the receiver via HDMI, and the receiver out to the tv via HDMI, but with the receiver off. There was zero delay - the audio starts instantly on my tv speakers As soon as I turn the receiver on and play the audio through the receiver's speakers, the first second gets cut off as always. So it must be the receiver has a delay when first picking up the audio for processing. Is this normal or do I have a problem I should have serviced?
To me, this seems like the receiver is just slow at detecting the audio, which is resulting in me losing the first second of audio. But if that's the case, then others here should be experiencing the same thing. There's nothing special about my setup. All my devices are connected directly to the receiver, with nothing in-between.
Edited by eagle_2 - 11/5/12 at 3:04pm