Doom9's Forum - View Single Post - Does eac3to automatically remove audio delay ?

madhatter300871 · 24th February 2010, 00:57

Hi all.

I think the answer to this is "yes" but would like someone (or even better a few people) to confirm this.

If I strip a video stream, an audio stream(s), subtitle stream(s), chapters list etc. from a blu-ray disc using eac3to does eac3to automatically cater for any audio delays ?

My command would be something like :-

eac3to input.m2ts 1) 3: d:\video.vc1 5: d:\dts_audio_track.dts

or even :-

eac3to input.m2ts 1) 3: d:\video.mkv 5: d:\dts_audio_track.dts

Has eac3to removed any audio delay ?

From what I have read online the answer seems to be "yes" but I cannot see anything anywhere in the eac3to output indicating that an audio delay has been found and the demuxed stream adjusted accordingly (or not).

When I then encode the video track to divx/xvid/x264 or whatever and multiplex into a container the audio is in synch but I have only done 2 or 3 movies so far (I don't have a big blu-ray collection yet !!). Is this just luck or does eac3to get delay information from the source stream and adjust demuxed audio streams accordingly.

Hopefully I'll get a few replies.

Many thanks.

24th February 2010, 00:57	#1 \| Link
madhatter300871 Registered User Join Date: Nov 2005 Posts: 255	Does eac3to automatically remove audio delay ? Hi all. I think the answer to this is "yes" but would like someone (or even better a few people) to confirm this. If I strip a video stream, an audio stream(s), subtitle stream(s), chapters list etc. from a blu-ray disc using eac3to does eac3to automatically cater for any audio delays ? My command would be something like :- eac3to input.m2ts 1) 3: d:\video.vc1 5: d:\dts_audio_track.dts or even :- eac3to input.m2ts 1) 3: d:\video.mkv 5: d:\dts_audio_track.dts Has eac3to removed any audio delay ? From what I have read online the answer seems to be "yes" but I cannot see anything anywhere in the eac3to output indicating that an audio delay has been found and the demuxed stream adjusted accordingly (or not). When I then encode the video track to divx/xvid/x264 or whatever and multiplex into a container the audio is in synch but I have only done 2 or 3 movies so far (I don't have a big blu-ray collection yet !!). Is this just luck or does eac3to get delay information from the source stream and adjust demuxed audio streams accordingly. Hopefully I'll get a few replies. Many thanks.