Samsung 850, 750, 650; Do they support HDMI LIp Sync? - AVS Forum | Home Theater Discussions And Reviews
Baselworld is only a few weeks away. Getting the latest news is easy, Click Here for info on how to join the newsletter list. Follow our team for updates featuring event coverage, new product unveilings, watch industry news & more!

Forum Jump: 
Thread Tools
Old 11-23-2008, 06:01 PM - Thread Starter
Swerve's Avatar
Join Date: Sep 2001
Location: Irvine, CA, USA
Posts: 43
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Do all or any of these models support HDMI Lip Sync?

I am purchasing an Onkyo receiver that says the auto lip sync function will only work if the TV support HDMI lip sync.
Swerve is offline  
Sponsored Links
Old 01-07-2009, 11:00 AM
AVS Special Member
Bill Mitchell's Avatar
Join Date: Dec 2008
Location: Austin, TX
Posts: 1,566
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
I was just researching this very question myself, and I see no indication in any of the Samsung literature that it supports HDMI lipsync. But this may not be a bad thing. There is a detailed article online about HDMI lipsync at the site (google HDMI lipsync) that describes how the HDMI handshake lets the HDTV communicate a fixed delay for the device back to the receiver. But some of the delay is variable, dealing with video compression, and some of the delay occurs upstream in the video source, be it cable or even DVD. So apparently the manual audio delay adjustment available in many of the AV receivers is the best current solution. In some cases, HDMI lipsync delay can even make things worse. The article also provides information from studies that humans react strongly to the audio being early, but we accept a small delay in the audio. So the adjustment in the receiver does not need to be perfect, just enough to get the audio not to precede the video.

You've probably already seen this, but there is a separate thread here discussing HDMI lipsync in general. See
Bill Mitchell is offline  
Sponsored Links
Thread Tools

Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off