audio delay
Posted by: StephenK on 13 January 2009
Hallo all,
I recently have discovered a disturbing effect when connecting the audio out of a plamsa TV to the audio amplifier. Both, when watching TV or DVD via a to the TV connected player, the audio signal coming from the speakers of the stereo system was ahead in time to the sound coming from the TV built in speakers. This effect was sometimes more disturbing, sometimes less. However, the voices do not match the visual picture when amplified via the stereo system.
Is this a common problem, should annother connection between TV and amplifier be used?
Thanks for help!
Stephen
I recently have discovered a disturbing effect when connecting the audio out of a plamsa TV to the audio amplifier. Both, when watching TV or DVD via a to the TV connected player, the audio signal coming from the speakers of the stereo system was ahead in time to the sound coming from the TV built in speakers. This effect was sometimes more disturbing, sometimes less. However, the voices do not match the visual picture when amplified via the stereo system.
Is this a common problem, should annother connection between TV and amplifier be used?
Thanks for help!
Stephen
Posted on: 14 January 2009 by PJT
Stephen,
What outputs/inputs are you using? The sound should definitely sync with the pictures.
What outputs/inputs are you using? The sound should definitely sync with the pictures.
Posted on: 14 January 2009 by fatcat
Stephen
Multi Channel AV receivers have the facility to delay the outputs. Apparently it enhances the surround sound.
Maybe your plasma TV has the facility to delay or advance the outputs to create a pseudo surround effect.
Multi Channel AV receivers have the facility to delay the outputs. Apparently it enhances the surround sound.
Maybe your plasma TV has the facility to delay or advance the outputs to create a pseudo surround effect.
Posted on: 15 January 2009 by Flame
Stephen;
What amplification are you using? A stereo amp or a dedicated AV receiver. If it is a stereo amp then I think you are stuck with what you have. If an AV receiver, then you can mute your TV and use the settings within the AV receiver to set the "speaker to listener" distance a bit less than the actual figure if it was properly measured and set previously. That should take care of things for you. When I started getting into hi-fi more than a few years ago I had a lip-sync problem which was solved the way I described. Good luck.
Regards...
What amplification are you using? A stereo amp or a dedicated AV receiver. If it is a stereo amp then I think you are stuck with what you have. If an AV receiver, then you can mute your TV and use the settings within the AV receiver to set the "speaker to listener" distance a bit less than the actual figure if it was properly measured and set previously. That should take care of things for you. When I started getting into hi-fi more than a few years ago I had a lip-sync problem which was solved the way I described. Good luck.
Regards...
Posted on: 19 January 2009 by StephenK
Thanks for your answers!
I am usind the TV audio out, white and red rca to a NAC 112 AV in, via a rca-din cable. Unfortunately the sound does not sync with picture.
The does not sync wheter the picture ist TV from TV or DVD via a DVD player. It seems like the TV delays the picture somehow, because when I use the audio out from the DVD recorder the picture is also behind the sound.
I did not find any hint on the plasma that it allows to delay sound. I was thinking whether annother output from the TV has a signal syncronized with the picture. What is interesting that the delay varies betweed certain programs and dvds??? Can the TV need longer time for whatever format to process???
Normal stereo, 112, 150 into naim speakers. Unftorutnately changing the speaker position is no option. Further with the old, conventional TV ther never was any delay.
To summarize naim sound is maybe 2/5 of a second faster ...
Stephen
I am usind the TV audio out, white and red rca to a NAC 112 AV in, via a rca-din cable. Unfortunately the sound does not sync with picture.
The does not sync wheter the picture ist TV from TV or DVD via a DVD player. It seems like the TV delays the picture somehow, because when I use the audio out from the DVD recorder the picture is also behind the sound.
I did not find any hint on the plasma that it allows to delay sound. I was thinking whether annother output from the TV has a signal syncronized with the picture. What is interesting that the delay varies betweed certain programs and dvds??? Can the TV need longer time for whatever format to process???
Normal stereo, 112, 150 into naim speakers. Unftorutnately changing the speaker position is no option. Further with the old, conventional TV ther never was any delay.
To summarize naim sound is maybe 2/5 of a second faster ...
Stephen
Posted on: 20 January 2009 by Exiled Highlander
Stephen
Strange timing.....I haave two TV's/systems connecetd up this way at home (one through my Naim system and another through a Yamaha AV amp) and have absolutely no sync problems.
However, I connected up another systems at the weekend (through a NAD two channel amp)and have exactly the same problem that you describe. I take Freeview in and use my DVD player as the decoder/tuner and feed it to an LCD TV.
I'll pay around with the config tonight or tomorrow and see how I can fix it (if it can be fixed).
Cheers
Jim
Strange timing.....I haave two TV's/systems connecetd up this way at home (one through my Naim system and another through a Yamaha AV amp) and have absolutely no sync problems.
However, I connected up another systems at the weekend (through a NAD two channel amp)and have exactly the same problem that you describe. I take Freeview in and use my DVD player as the decoder/tuner and feed it to an LCD TV.
I'll pay around with the config tonight or tomorrow and see how I can fix it (if it can be fixed).
Cheers
Jim
Posted on: 20 January 2009 by Brucie
StephenK,
Are you using a short, high quality cable?
Are you using a short, high quality cable?
Posted on: 20 January 2009 by Ears
Stephen,
I had exactly the same problem as you using audio-out from a PVR, but solved it by sending vision and sound through the same SCART socket. Up to then I could never understand why some people were experiencing a delay and others swore there was nothing wrong. Hope this could be the answer for you.
ATB from Ears
I had exactly the same problem as you using audio-out from a PVR, but solved it by sending vision and sound through the same SCART socket. Up to then I could never understand why some people were experiencing a delay and others swore there was nothing wrong. Hope this could be the answer for you.
ATB from Ears
Posted on: 20 January 2009 by Consciousmess
Stephen,
I experience what you say. I wondered whether it was due to the processing taking so long through all the wires for there to be a lag and out of synch speech.
Do you think a 5 to 10m digital optical cable will make this lag go as its a solution for my problem???
Regards
Jon
I experience what you say. I wondered whether it was due to the processing taking so long through all the wires for there to be a lag and out of synch speech.
Do you think a 5 to 10m digital optical cable will make this lag go as its a solution for my problem???
Regards
Jon
Posted on: 20 January 2009 by StephenK
Thanks for your replies!
I use a standard RCA to DIN cable about 1 meter long. As mentioned, there was no delay with the old, traditional TV. I assume that the plasma somehow calculates the picture, what takes time. And the audio out of the plasma does not take the 'calculation time' into account. So maybe ther is annother out (the plasma has almost all in and outs you can have) that is synced with the picture. Is there a way to connect a SCART via an adopter with the DIN input of the 112? Or some HDMI whatever out to DIN?
Regards,
Stephen
I use a standard RCA to DIN cable about 1 meter long. As mentioned, there was no delay with the old, traditional TV. I assume that the plasma somehow calculates the picture, what takes time. And the audio out of the plasma does not take the 'calculation time' into account. So maybe ther is annother out (the plasma has almost all in and outs you can have) that is synced with the picture. Is there a way to connect a SCART via an adopter with the DIN input of the 112? Or some HDMI whatever out to DIN?
Regards,
Stephen
Posted on: 20 January 2009 by fatcat
Stephen
You can use a Scart to RCA adaptor plus RCA/Din Cable. The Scart to RCA adaptors come free with games consoles. The Xbox supplied adaptors appear to be good quality.
Does switching progressive scan on or of make any difference.
You can use a Scart to RCA adaptor plus RCA/Din Cable. The Scart to RCA adaptors come free with games consoles. The Xbox supplied adaptors appear to be good quality.
Does switching progressive scan on or of make any difference.
Posted on: 21 January 2009 by Ears
Stephen,
I think it would be worth finding out whether the lip sync problem occurs when the SCART is used for both sound and vision. It could save you investing in leads you don't need. If you have another device, a DVD recorder for example which does not exhibit the problem, you could send sound and vision to it via a SCART to SCART, then pick up the audio separately from the second device.
Just a thought, Ears
I think it would be worth finding out whether the lip sync problem occurs when the SCART is used for both sound and vision. It could save you investing in leads you don't need. If you have another device, a DVD recorder for example which does not exhibit the problem, you could send sound and vision to it via a SCART to SCART, then pick up the audio separately from the second device.
Just a thought, Ears
Posted on: 21 January 2009 by Exiled Highlander
Stephen
I fixed mine last night through a wee play with the Audio Ouput settings on my DVD (which is also a Freeview tuner)....I have no clue what exactly I did (and as I felt like crap due to having a stonking headcold I couldn't be bothered investigating further) but it was related to the HDMI connection audio settings....
Cheers
Jim
I fixed mine last night through a wee play with the Audio Ouput settings on my DVD (which is also a Freeview tuner)....I have no clue what exactly I did (and as I felt like crap due to having a stonking headcold I couldn't be bothered investigating further) but it was related to the HDMI connection audio settings....
Cheers
Jim
Posted on: 22 January 2009 by Phil Cork
I have a similar issue and put it down to my plasma taking time to process the picture/video, whilst the audio (direct from my PS3/DVD to my 52) suffers no such delay.
It's not tooo bad, but i considered that the only way to address it would be to take the audio out of the TV (which i guess ought to be in sync with the picture! I don't want to do that as the sound is bound to be degraded by that circuitous route.
I guess if my olive 52 was able to slow down electrons that might help. Perhaps if i put it in a bath of liquid nitrogen.... Hmm..
Phil
It's not tooo bad, but i considered that the only way to address it would be to take the audio out of the TV (which i guess ought to be in sync with the picture! I don't want to do that as the sound is bound to be degraded by that circuitous route.
I guess if my olive 52 was able to slow down electrons that might help. Perhaps if i put it in a bath of liquid nitrogen.... Hmm..
Phil
Posted on: 22 January 2009 by Exiled Highlander
Phil
i would think that the loss of sound quality would be minimal compared to having to put up with that sort of lip/sysnc and delay type issue. I know that I couldn't live with it and luckily got it fixed through frigging around with the audio settings on my Phillips DVD player.
Cheers
Jim
i would think that the loss of sound quality would be minimal compared to having to put up with that sort of lip/sysnc and delay type issue. I know that I couldn't live with it and luckily got it fixed through frigging around with the audio settings on my Phillips DVD player.
Cheers
Jim
Posted on: 07 February 2009 by Bowers
Stephen,
I think the audiodelay should be called videodelay or videolag; one of the causes is the processingtime of video in a flatscreen (nothing related to cablelengths). This videodelay may be dependable on the choice of videoprocessing in the flatscreen. I own f.e. a Pioneer 5090 and it has a choice "gamemode"; this is not for best picture-quality, but to minimise videoprocessingtime (as I understand it). Besides the choice for a different processingmode in the flatscreen and/or trying another inputsignal (HDMI/SCART progressive or interlaced,....) there is nothing you can do.
To end all possible sync problems and maintain best picture-quality, there are to my opinion only two solutions;
The use of an AV receiver that has the possibilty to adjust the lipsync error or
Use a seperate (digital) audiodelaybox that is switched between the DVD player and the (AV)amplifier.
hope this helps,
Peter
I think the audiodelay should be called videodelay or videolag; one of the causes is the processingtime of video in a flatscreen (nothing related to cablelengths). This videodelay may be dependable on the choice of videoprocessing in the flatscreen. I own f.e. a Pioneer 5090 and it has a choice "gamemode"; this is not for best picture-quality, but to minimise videoprocessingtime (as I understand it). Besides the choice for a different processingmode in the flatscreen and/or trying another inputsignal (HDMI/SCART progressive or interlaced,....) there is nothing you can do.
To end all possible sync problems and maintain best picture-quality, there are to my opinion only two solutions;
The use of an AV receiver that has the possibilty to adjust the lipsync error or
Use a seperate (digital) audiodelaybox that is switched between the DVD player and the (AV)amplifier.
hope this helps,
Peter
Posted on: 07 February 2009 by BigH47
I was watching Elbow on BBC red button, on Sky+ it was out of sync but on digital TV it wasn't.
Posted on: 07 February 2009 by BigH47
It has been the only programme I've noticed on. Simply listening on digital solved the problem. Just thought it a bit strange. I was watching a few days ago and just noticed this thread.