[ExtractStream] Audio Synchronisation - Does Anyone have the Answers ?

[Mark Frankenfield]

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Well,
I can tell you what I've been doing with some moderate success. 
Biggest problem is some won't reencode, but exception errors the 
elecard Mpeg2 codec.

Extract video with TivoApp to an Mpeg file.

Create a .d2v project file with DVD2AVI, which also extracts the 
audio and seems to find the sync offsite at the same time.

Load the .d2v into the video section of TMPEnc.
Load the new .m2a file from DVD2AVI for the audio

Encode using the NTSC DVD filter in TMPGEnc. I've been trying this 
for about 2 weeks now with Stargate and Soprano's episodes. The audio's 
been synced quite well since I started using DV2AVI to create the .m2a 
(I had originally been following Merchs Directions to make SVCD's, but 
bought a DVD Burner about 3 weeks ago, so I needed to get the audio to 
48 instead of 44.)


Mark

kill1967 wrote:

> Can someone explain to me why I can resample a 32KHZ TiVo audio stream
> to 44.1KHZ and still keep perfect sync, yet resampling to 48KHZ causes
> major synchronisation issues ?
>
> Steps.
> Convert .m2a to .wav using Winamp
> Convert .wav to .mp2 (using force source sample to 44.1KHZ) using Besweet
>
> Synch works fine.
>
> Convert .m2a to .wav using Winamp
> Convert .wav to .mp2 (using force source sample to 48KHZ) using Besweet.
>
> Synch is out by miles.
>
> It seems weird that 44.1KHZ works fine yet 48KHZ causes issues. Has
> anyone got any idea ? (of course Winamp/Besweet may actually change
> the bitrate too, but it should be the same for both...Shouldn't it ? )
>
> BTW does anyone know of a way to get either 32KHZ or 44.1KHZ streams
> to work in a DVD authoring package and which ones work ?
>
> Cheers,
>
> John
>
>
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-- 
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Mark Frankenfield Software Developer
Oracle Java Tools Division - Orlando, FL
'He who fights with monsters might take care lest he thereby
become a monster. And if you gaze for long into an abyss,
the abyss gazes also into you.'
--Friedrich Nietzsche
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