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audio/video sync issues w/ PN58C550 & DLNA w/ DD & DTS audio

by fender9999 / May 28, 2010 1:44 PM PDT

I have a Samsung PN58C550 TV and a Sony STR DH 800 receiver.

I'm using Samsung's PC Share Manager to stream movies (mkv container h.264) over my 100 Mbit full duplex wired LAN. I have the TV audio out connected to the receiver with a fiber optic audio cable.

When using PCM/Linear (stereo) audio, there's no delay. However, when using Dolby Digital or DTS, there's a pretty significant sync issue between audio and video. It happens with all resolutions: 480p, 720p and 1080p.

I don't experience this delay with other sources: HD cable, Blu-Ray, or XBox 360. HD Cable and Blu-Ray are connected via HDMI through the receiver, the 360 uses component.

I can "fix" this by enabling audio delay on the receiver of 70 - 90 ms. I haven't figured out the exact correct setting yet. This works... but is annoying because I need to enable the delay to watch via DNLA and disable for all other sources. This is inconvenient at best, and has a very low WAF (wife acceptance factor) since she, the kids and my in-laws won't be able to consistently figure out how to do this with out my help.

Has anyone else experienced anything similar? Are there any planned firmware updates to enable audio/video sync settings on the TV audio out? If not, is there a way to enter an official request for enhancement for a future firmware update?

Sorry if this is dup post, I couldn't seem to find the search feature...

Thanks for any help.

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