Audio through RCA and HDMI not in sync

Hi,
Is this a common problem?
Recently got a tv with hdmi so the appletv is now connected with hdmi to the tv. But it is also still connected to my stereo though the rca connection (for music or movies with soundtracks that I really want to enjoy).
Problem with both music and movies is that the audio is not in sync between hdmi and rca. Hdmi is a bit delayed.
Now for music this is not that much of and issue as I usually have the tv off and use the iphone remote to select music on the appletv which plays then through the sereo. But for movies it is, I have to turn off the tv volume completely. It was much better to have the sound of the tv also on for dialogue, gave a more natural impression if it did not only come from the stereo. But with the delay it is just not good anymore.
Any ideas, known problem? Fixable?
Thanks,
S.

Stekke wrote:
Hi,
Is this a common problem?
Recently got a tv with hdmi so the appletv is now connected with hdmi to the tv. But it is also still connected to my stereo though the rca connection (for music or movies with soundtracks that I really want to enjoy).
Problem with both music and movies is that the audio is not in sync between hdmi and rca. Hdmi is a bit delayed.
Any ideas, known problem? Fixable?
Most modern TV's have an input lag during which various processing is applied to the video signal, and the TV audio will be delayed accordingly - the longer this delay the more you're likely to notice a discrepancy between RCA/optical and HDMI.
This is not the AppleTV's problem.
While you might want both audio outputs playing together it invariably causes problems.
Only if your amp has some kind of delay function on the input could you compensate by slowing teh audio from the amp.

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