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Making 5.1 Dolby Digital DVDs from SKY+ or PVR (Tivo) Draft Document 0.2
17/02/05 by Srt2Sup
This document describes
how to make DVD from Sky Digital with Dolby Digital 5.1 sound tracks if you
have a PVR or Tivo that can record Dolby Digital then substitute this for
where I say SKY+!
Be aware that this takes
some time and requires a vast amount of stuff, software, time and patience!
I am only going to
detail using the equipment I use, but I will point out the specific areas of
attention so you can substitute your own method or tools.
Hardware stuff you will need:
- This will not work with normal SKY as you can’t record or get DD 5.1
reasonable PC with a SoundBlaster Audigy 2 ZS Platinum (or another sound
card with Digital in and the ability to have a Bit Accurate Mode) and a
Digital Optical to CoAxial converter|
CoAxial to Optical converter|
long CoAxial lead (to reach from you SKY+ box to your PC)|
DVD recorder or other method of digitizing the video|
2000 or XP (98 does not support file sizes > 2Gb)|
Software you will need:
(optional, but helpful)|
(if you use a DVD recorder)|
DVD Author that supports AC3|
Step 1 – Capture the Video
the video using the DVD recorder
VobEdit to extract the video only to a single file
Step 2 – Capture the AC3
Now you have a video
file and an AC3 audio file we need to synchronise them and add them together!
I tried using the AV Sync button in MPEG VCR, but this did not seem to work!
Synchronising the files
MPEG VCR create a file about 10 minutes long from the start of your video
HeadAC3he create a file about 20,000 frames long from the start of your
MPEG VCR to Multiplex the two small files together
the small MPG file and look for a good point to synchronise like a door
the stopwatch to check the difference between the action and the sound
this moment in time it will be in the order of seconds
HeadAC3he to create a file about 20,000 frames, but set the start to be
your stopwatch value
from step 3 until you get the small files into sync
a note of the number of frames you have to remove from the small file to
get it into sync
Making the synchronised movie
HeadAC3he to trim the noted number of frames from the full AC3 file
MPEG VCR to multiplex the full video and the trimmed AC3 file
the created MPG file and check the synchronisation all the way through!
from 3 in the previous section if the sync is out
the sync drifts i.e. is OK at the start and is out at the end then tough I
don’t have a way of fixing that yet!
MPEG VCR to trim the crap from the start and the end of the full movie
Making the DVD
TMPG DVD Author to create a DVD movie from your MPG file
your SKY+ movie with 5.1 Audio onto a DVD
I hope you found this
useful? You could even add subtitles with my Srt2Sup program or a Menu if you
want. I will update this file as I improve the process.
This page was last updated on 17-Feb-2005.