[opendtv] Re: DTV Audio and video synchronization
- From: "Adam Goldberg" <adam_g@xxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Sat, 22 Mar 2008 18:42:41 -0400
I believe that Dolby used to have a mandatory fixed-delay specified for
(outboard) AC-3 decoders. 45ms, if I recall correctly. With that spec,
displays should be able to present video at the right time.
Sure, there's opportunity for products to NOT do that, but it's fully
specified. No standards work to do.
Adam Goldberg
adam_g@xxxxxxxxx
-----Original Message-----
From: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] On
Behalf Of John Willkie
Sent: Saturday, March 22, 2008 3:38 PM
To: opendtv@xxxxxxxxxxxxx
Subject: [opendtv] Re: DTV Audio and video synchronization
Seems to me -- and this is the second time I've heard of this particular
issue -- that the separate audio system with a different throughput delay is
the 'culprit.'
One could put a delay variable in the audio subsystem, but how would one
expect a consumer to make use of it?
John
-----Mensaje original-----
De: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] En
nombre de Tom McMahon
Enviado el: Friday, March 21, 2008 7:06 PM
Para: opendtv@xxxxxxxxxxxxx
Asunto: [opendtv] Re: DTV Audio and video synchronization
I don't know, John, as much as I normally agree with you. Or perhaps I am
missing something. After being guilted by Blu-ray and HD
DVD members at a 2 AM party at my house (yes we are all friends and enjoy
BBQ, beer, Shochu, and Sake together), my wife and I went
out and bought a Sony LCD.
I am not stupid but including the programmable delay in both the Sony and my
Denon 5.1 I can't get audio sync with the rest of my
channels despite my best efforts. I've tried everything - HDMI, Belden's
best - everything. I wanted to use the speakers in the
Sony for the dialog channel but they're way out of sync. To this day I have
my center channel sitting on the floor in front of the
Chinese chest on which the Sony rests (much to the dismay of my wife).
- Tom
Tom McMahon
DelRey
+1-310-717-7208 Mobile
+1-310-822-4975 FAX
TLM@xxxxxxxxxx
TLM@xxxxxxx
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