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View Full Version : Determining Audio Delay on BD - Mac


kalorx
8th January 2013, 16:37
Hi all. I've been using MakeMKV combined with Handbrake and MKVtoolnix to rip BDs but the audio is usually off. I can manually fix it but it requires a lot of guesswork on my part, and in the end I may not be precisely correct. What I'm looking for is a Mac way to determine the BD's proper audio delay.

Thanks!

Selur
8th January 2013, 16:48
Is the audio okay after simply using MakeMKV?

kalorx
8th January 2013, 19:49
Unfortunately I can't test that. My 2008 cheapo MacBook isn't fast enough to run the raw MKV produced by the 1:1 rip.

EDIT: Well, I kinda take that back. It can run it, but it skips now and then. That's why I generally don't trust it. But the audio does seem fine.

Selur
8th January 2013, 20:35
It that file is fine, than getting the delay should be possible by running MediaInfo :)

kalorx
8th January 2013, 23:58
I have the latest version of Media Inspector / MediaInfo installed, but I can't find that information anywhere in what it tells me. Am I just missing it? You're telling me it's in the raw 1:1 MKV, right, not the one I encoded off it?

Selur
9th January 2013, 11:24
You're telling me it's in the raw 1:1 MKV, right
Right. iirc you have to enable debug -> advance mode -> Detail 10 or something like that to see all the infos MediaInfo provides.

kalorx
9th January 2013, 16:06
How do you enter debug mode? I don't see that as an option for either MedaInfo or its newer version Media Inspector.

Selur
12th January 2013, 07:51
Okay, tried mediainfo gui from the mediainfo homepage:
1. set View to Text
2. set Debug to Complete
look at the 'Delay relative to video' info for the audio stream

kalorx
13th January 2013, 02:51
Well isn't that interesting... you pay for it and you get less information! There is no such option in Media Inspector, but it's there in the last version of MediaInfo. Huh.

Audio delay was 0. Also, I discovered that some of my problems were due to Handbrake being set on a variable framerate by default.