A/V Sync

[Whicher1980]

Hi everyone.  Brand new to the forum today!

I've always used and been happy with Sony products and have just upgraded my system a couple of days ago.

I went for a KDL-55W905 Television, STR-DN1040 Receiver Amp and BDP-S5200 BluRay player.

As I work in broadcasting as an Editor I'm pretty knowleagble about picture and audio etc and have spent a day calibrating the TV so I'm happy with the picture using the Spears & Munsell setup disk.  Very happy so far!

Whilst calibrating the audio for the BluRay player I noticed quite a substantial sync mismatch between video and audio, which I thought was strange as I have the amp set to HDMI Auto for A/V sync.  I have manually adjusted this and it is 80ms out.  Seeing as I've gone for a complete Sony package I thought it rather odd that the sync would be so far out on the HDMI, but I've got it set up now so happy with that.

The big issue I have is with the sync on the Television.  The audio comes out of the receiver amp AFTER the video on the television.  This input is also set to HDMI Auto.  The trouble is, I need to delay the Video to bring it into line with the audio and I can't see a way to do this.  Even if I set the delay to 0ms manually, the audio still follows the video.  Looks to be about 2 frames out.  If I set the system to output audio through the TV and the Amp, you hear a noticable echo between the two when playing simultaniously.

Yesterday I went and bought a rather expensive optical cable to see if that would fix the issue rather than running the audio through the HDMI and selecting OPT as the input for the TV channel on the receiver.  Exactly the same problem.  I don't understand why the sync is not perfect when set to HDMI Auto.

Does anyone have any suggestions?  I have emailed Sony about the issue, but as yet have had no response.

Many thanks for your help and I look forward to hearing your comments!

James

[Anonymous]

HI there

Welcome to the forums ! 

To sum up: The video on the TV is displayed and then a slight delay for the audio to the AV Receiver.  ?

I am wondering if this is an Input/Output lag issue.  Not sure how to fix that YET.

Cheers

[Anonymous]

Hi there

What happens if you set the A/V Sync to HDMI AUTO ?  Does that assist or make the problem worse?

Cheers

[Whicher1980]

Thanks Quinnicus!

Your sum up is correct yes.

If HDMI is set to AUTO there is about a 2 frame delay before the audio is heard (about 80ms in PAL).

This looks to be about the same if the amp is set manually to 0ms delay rather than AUTO.

The same was with the BluRay player.  HDMI AUTO was about two frames out but the other way, which is why I was able to dial in an 80ms delay and sync the audio back up.

One of the reasons I bought all Sony kit was to avoid issues like this.  I would have thought all their high end consumer equipment would be tried and tested... mine is far from an unusual setup!  Very basic in fact bearing in mind what the Amp can acutally support.  I just have the telly and a bluray player.  No other inputs into the system.

Any ideas would be welcome Sir!

James

[Anonymous]

Hi there

Unfortunately I have no idea on how to resolve this.  So my advice is to persue this via Sony Support. 

As silly as this sounds, what happens if you do the following (going on another theory):

• Set AV Receiver to 2ch stereo (including the speaker setup)
• Then set the speaker distance to 0m
• Then test a freeview station thats only 2 channel

Unless another forum member has another idea?

Cheers

[Whicher1980]

Hiya,

Thanks for your help and suggestions.  Have tried your suggestions this morning and still having the same problem.  It's like the receiver is delaying the audio some how after it has left the TV.  Very annoying.

Any idea how long it normally takes for Sony to respond to a queery?  It's been a couple of days now.

Many thanks,

James

[Anonymous]

Hi there

Oh well, that theory is out 😞

Unfortunately email support tends to be slow - sometimes it may be best to phone them up especially if Sony want to confirm minor details etc.  Give Sony Support a call on 0207 365 2810.  If you feel that you are getting no joy, please post back.  Actually please post back anyhow, as I am curious on the issue/resolution myself.

Cheers

[tjc2005]

Hello, I have almost the same setup as you, same TV but the Sony AVR I have is the str-dn840, did you ever find a solution to your problem?? Thanks

[simonbruce1982]

My hardware might be different, but this is exactly what I am experiencing and getting nowhere nearer to discovering a solution! You explained the issues very clearly.

I have an AF8 and the DH790 receiver. Appreciate this post is a few years old, but wondered if you make any progress with addressing the issue?

[Joe_Dohn]

Can you tell us more about the setup you have and how everything is connected as well as anything you've already tried?

Updating the software for all devices would be a great first step if you haven't done so already.

- J.D.