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Old 12 Jul 2005, 03:07 AM   #1
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Cool Xvid To Dvd Audio Is Out Of Sync

I have problems getting audio to sync with the video when ever i convert vbr based xvid files to DVD. Over time the audio

gradually gets out of sync.



Some background info:

Programs used for encoding: DIKO GOLD build 1.48b3

DIKO GOLD settings: mode bdvd, standard: PAL, video encoder CCE SP audio encode AC3 (software based). Encoding mode -

quality based, Max Q factor: 40, audio: all boxes unchecked, 2.0 audio 64kbs, 5.1 audio 224 kbs.



details of the file in question in question (using virtual dub build 1.4.11 14279:

Framesize, fps and 6400*288, 25.00fps (40000 us)

#frames (time): 100693 (1:07:07)

decompressor: xvid mepg-4 codec

number of key frames: 1367

min/avg/max total key frame size: 4009/ 22679/ 65107 (30277k)

min/avg/max/total delta frame size: 6/6072/61451 (588999k)



audio stream info:

sample rate: 48k
bit rate: 192 kb/s
channels: 2.0 stereo

sample precision: 0-bit

compression: unknown tag 2000

preload skew: 2304 samples 0.05s

# frames: 41956

min/avg/max total frame size: 1205/2303/ (94400k)


audio codec: ac3

general info (using GSPOT v2.21):
stream type: openDML AVI, IMRR: 1.00 1 aud frame (32ms) split: no

Methodology:

Use DIKO for all the conversion work as its quick and fast and gives good results.

create a dvd image using DIKO
mount image using daemon tools 3.47 (all emulation modes turned on.
burn the image using Nero Ultra Ed Burning Rom build 6.3.1.25

whatever prog i use i always create an image file for nero to burn.


Other relevant info:
hardware:
3.2ghz intel p4 (northwood core)
abit ic7 max 3 mobo, 1gb corsair xms pro 3200ll, Asus Ati radeon 9800xt pro, 200 Gb western digital hdd (dump drive for

video) 80 gb ibm desktar system drive. LG 4040B DVD -/+ RAM Burner asus 52004 cdr, burner. antec 480 true blue psu and

koolance exos + 2x 120mm case fans to keep it all cool.

Other hardware:
Sony RDR HX 1000
panasonic 36" 100hz widescreen tv
sony 25" triniton (acts as a realtime video monitor)
Sirius dvd / cdr replicator (7x dual layer 16x sony burners , 1 reader, 1x 80hdd all wrapped in a Full atx case)
System linkage:
pc is via asus 9800 xt pro's break out box s-video out linked to standalone sony rdr HX-1000 DVD recorder (with a sony vcr likned to it which in turn is linked to a 36" panasonic widescreen tv.

software installed:
win xp pro sp2.
DIKO GOLD build 1.48b3
Nero Ultra Ed Burning Rom build 6.3.1.25
dvd decypter build 3.5.1.0
dvd identifier v3.4 build #4
DVD-Lab Pro version 1 build 041014
easy video splitter 1.26
easy divx version 0.81
clone dvd version 1.3.11.2
flasKMPEG v0.6
sony dvd architect v2.0a build 121
TMPGenc DVD author v 1.6
TMPGenc ac3 plugin
TMPGenc Plus v2.5 (2.59.47.155) core version (1.92.142)
VSO copy to DVD v2.4.5.248
WINAVI V6.2
Canopus edius pro v3.01
Canopus procoder xpress

codecs:
58 video codecs
29 audio codecs
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Old 12 Jul 2005, 04:53 AM   #2
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de-mux the audio and video. encode the audio and video separately. check to see that the audio and video are the same length and correct if necessary. mux the audio and video together. for problematic videos you have to sometimes do this. Or you can try a better program such as mainconcept (fastest) or Tmpgenc plus. you can d/la trial version from their website.
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