hdmi weirdness

[TdC]

ok strange thing happening:

I recently got a HD tv package with a new media box which outputs HD tv streams at whatever HD level they are and the audio at whatever format it is.

Now, I've noticed that if I am zapping through channels and either go from HD to SD or vice versa I will lose picture/audio sync and my amp seems to be trying to renegotiate everything. It doesn't manage this by itself, but does if I switch from the tv input to an unused input and back again. After such a switch I get both video and audio back.

the setup is a PS/3 and the HD tv box that go into a NAD T747 amp that goes into my hdtv. everything is connected with HDMI cables of different pedigrees. I noticed that when I first got this amp that it was rather picky about which (HDMI) cables it liked and which it didn't. I discovered this, because it would lose sync with the PS/3 when playing audio and showed this by choppy sound or stopping playback all together. It would only do this when the TV was *not* on. After changing that cable for a presumably better one, this behaviour stopped and the PS/3 would output perfect audio regardless of the TV being on or not.

Now the HD media box seems to be subjected to the same behaviour by the amp. I've already ordered a much higher grade HDMI cable to fit between the PS/3 and the amp, but tried the setup by bumping the known good cable to the slot that is being gay, to no effect.

All output devices are set to "auto" and allow hdmi video and audio where possible. The behaviour is present regardless of me setting the amp to upscale/pass through video to 1080p at 50 or 60Hz or leave it at auto.

So, anyone have any tips for meh? I mean switching the output selector of the amp isn't a great pain or anything, but it irks me that stuff is not working as it should.

 

[Scouse]

So, anyone have any tips for meh?

Never run with scissors.



Oh, and floss. Always floss.

 

[TdC]

*kill*

 

[Trem]

Totally disagree with scouse.



Flossing hurts and I find that mouthwash is more effective and hurts less. Listen less to him and more to me Teedlebacon.

 

[Ch3tan]

My amp can take a second or two to renegotiate, but it never fails. I don't think more expensive HDMI cables are the answer. Check over on avforums and see if there is a solution before splashing the cash.

 

[TdC]

ok thanks Ch3t I will try that.

 

[Scouse]

Totally disagree with scouse.

Flossing hurts and I find that mouthwash is more effective and hurts less. Listen less to him and more to me Teedlebacon.

I disagree with me too. I hate flossing and use mouthwash myself



Edit: Strangely, I feel some sort of responsibility to check that Teeds gets the answer he was actually after. When you figure it out can you post what you did here so I can read it and completely fail to understand any of the things you've been doing again?

 

[cHodAX]

I get handshaking issues on audio with my setup as well, usually takes an input change to correct so the proble, is defo with the TV being a bit old and probably not totally 100% in HDMI spec know those Frenchies at Sagem.

 

[TdC]

I disagree with me too. I hate flossing and use mouthwash myself



Edit: Strangely, I feel some sort of responsibility to check that Teeds gets the answer he was actually after. When you figure it out can you post what you did here so I can read it and completely fail to understand any of the things you've been doing again?

but I prefer brushing over flossing

 

[Scouse]

Brushing? What the fucks that then? Does it help with your audio problems?

Told you I wouldn't understand

 

[Wazzerphuk]

Told you I wouldn't understand

It's not something you need to make explicit.

 

[Yaka]

have you checked if theres a firmware upgrade for your amp?

 

[TdC]

yeah, I have actually Yaks, but there is none.

I've become a member of NAD Salon, and have asked there. I don't want rid of this amp: it sounds awesome, but the fact that I can't flick through channels without it losing sync is damn irritating :/