Log in

View Full Version : AC3 to AC3 - Audio Ends Out Of Synch With Film.


Andrew C
25th May 2005, 23:59
I have been using Besweet V1.5b29 with BeSweetGUIv0.6 to boost a AC3's volume before reauthoring with DVD Lab Pro and it normally works well.
DGMPGDec 131b5 gives me the d2v and the Audio, but on the following film, the audio is different from usual and when using Besweet on it, the audio file ends up 140kb larger and out of synch with the film.
The original Audio Size is 331,088 KB, but after it through Besweet, it ends up at 331,228 KB.
Through trial and error, i found that a bitrate of 448kbps gives a file size nearest to the original.
And i have also tried manually setting the delay, which is approx 7 seconds, using a delay of 5, 6, 7, & 8, but that is not working out either.
Is AC3 T01 1+1ch 32Kbps DELAY 0ms.ac3 a new type of audio that Besweet can not do ?
The audio files i normally get are; AC3 T01 3_2ch 448Kbps DELAY 0, with a bitrate ranging from 192Kbps to 448 Kbps, depending on the film, and i have no trouble with them.

BeSweet v1.5b29 by DSPguru.
--------------------------
Using azid.dll v1.9 (b922) by Midas (midas@egon.gyaloglo.hu).
Using AC3enc.dll v1.20 (Feb 18 2004) by Fabrice Bellard (http://ffmpeg.org).
Manual Dynamic-Compression algorithm by LigH (author of WaveBooster).

Logging start : 05/25/05 , 23:00:52.

C:\Program Files\BeSweet\BeSweetv1.5b29\BeSweet.exe -core( -input C:\Documents and Settings\Andrew\My Documents\My Videos\LC\LC AC3 T01 1+1ch 32Kbps DELAY 0ms.ac3 -output C:\Documents and Settings\Andrew\My Documents\My Videos\LC\LC AC3 T01 1+1ch 32Kbps DELAY 0ms-New.ac3 -logfile C:\Program Files\BeSweet\BeSweetGUIv0.6\BeSweet.log ) -azid( -s stereo -c normal -g 0.95 -L -3db ) -boost( /b2=7 ) -ac3enc( -b 448 ) -profile( ~~~~~ Default Profile ~~~~~ )

[00:00:00:000] +------- BeSweet -----
[00:00:00:000] | Input : C:\Documents and Settings\Andrew\My Documents\My Videos\LC\LC AC3 T01 1+1ch 32Kbps DELAY 0ms.ac3
[00:00:00:000] | Output: C:\Documents and Settings\Andrew\My Documents\My Videos\LC\LC AC3 T01 1+1ch 32Kbps DELAY 0ms-New.ac3
[00:00:00:000] | Floating-Point Process: No
[00:00:00:000] +-------- AZID -------
[00:00:00:000] | Input Channels Mode: 1+1, Bitrate: 32kbps
[00:00:00:000] | Output Stereo mode: Stereo
[00:00:00:000] | Total Gain: 7.815dB, Compression: Normal
[00:00:00:000] | LFE levels: To LR -3.0dB, To LFE 0.0dB
[00:00:00:000] | Center mix level: BSI
[00:00:00:000] | Surround mix level: BSI
[00:00:00:000] | Dialog normalization: No
[00:00:00:000] | Rear channels filtering: No
[00:00:00:000] | Source Sample-Rate: 48.0KHz
[00:00:00:000] +-------- BOOST ------
[00:00:00:000] | Algorithm by : Dg
[00:00:00:000] | Boost Factor : 7.0
[00:00:00:000] | Limit Factor : 0.70
[00:00:00:000] +------- AC3ENC ------
[00:00:00:000] | Bitrate method : CBR
[00:00:00:000] | AC3 bitrate : 448
[00:00:00:000] | Channels Mode : 2.0
[00:00:00:000] | Error Protection: Yes
[00:00:00:000] +---------------------
[00:00:00.000] E12: No coupling strategy exists in first audio block
[00:00:00:064] Stream error : Sync found after 640 bytes
************Edited because it was so long****************************
[00:00:04:288] Stream error : Sync found after 640 bytes
[00:00:04.256] E12: No coupling strategy exists in first audio block
[00:00:04:320] Stream error : Sync found after 640 bytes
[00:00:04.288] E12: No coupling strategy exists in first audio block
[00:00:04:352] Stream error : Sync found after 67 bytes
[01:40:56:736] Conversion Completed !
[01:40:56:736] Actual Avg. Bitrate : 448kbps
[00:09:00:000] <-- Transcoding Duration

Logging ends : 05/25/05 , 23:09:52.

towerblocks
26th May 2005, 10:18
Try using BeSliced (http://besweet.notrace.dk/BeSplitv0.9b6.zip) to fix your AC3,Demux your AC3,Start up BeSliced,Drag and drop the AC3 on the window,Select fix,Then encode the AC3,See if that works.

Andrew C
26th May 2005, 18:00
Thanks for the reply.

The logfile from Besliced says:
BeSplit v0.9b6 by DSPguru.
--------------------------

Logging start : 05/26/05 , 17:35:42.

C:\Program Files\BeSweet\BeSplitv0.9b6\BeSplit.exe -core( -input C:\Documents and Settings\Andrew\My Documents\My Videos\LC\LC AC3 T01 1+1ch 32Kbps DELAY 0ms.ac3 -fix -logfile C:\DOCUME~1\Andrew\LOCALS~1\Temp\BeSliced.txt -type ac3 -output C:\Documents and Settings\Andrew\My Documents\My Videos\LC\LC AC3 T01 1+1ch 32Kbps DELAY 0ms_Fixed.ac3 ) -profile( BeSliced v0.3 )

[00:00:00:000] +------- BeSplit -----
[00:00:00:000] | Input : C:\Documents and Settings\Andrew\My Documents\My Videos\LC\LC AC3 T01 1+1ch 32Kbps DELAY 0ms.ac3
[00:00:00:000] | Source Sample-Rate: 48.0KHz
[00:00:00:000] | Channels Count: 2, Bitrate: 32kbps
[00:00:00:000] | Output : C:\Documents and Settings\Andrew\My Documents\My Videos\LC\LC AC3 T01 1+1ch 32Kbps DELAY 0ms_Fixed.ac3
[00:00:00:000] +---------------------
[00:00:00:064] Stream error : Sync found after 640 bytes
[00:00:00:096] Stream error : Sync found after 640 bytes
[00:00:00:128] Stream error : Sync found after 640 bytes
[00:00:00:160] Stream error : Sync found after 640 bytes
[00:00:00:192] Stream error : Sync found after 640 bytes
[00:00:00:224] Stream error : Sync found after 640 bytes
[00:00:00:256] Stream error : Sync found after 640 bytes
[00:00:00:288] Stream error : Sync found after 640 bytes
[00:00:00:320] Stream error : Sync found after 640 bytes
[00:00:00:352] Stream error : Sync found after 640 bytes
[00:00:00:384] Stream error : Sync found after 640 bytes
[00:00:00:416] Stream error : Sync found after 640 bytes
[00:00:00:448] Stream error : Sync found after 640 bytes
[00:00:00:480] Stream error : Sync found after 640 bytes
[00:00:00:512] Stream error : Sync found after 67 bytes
********************edited because of length*************************
[00:00:04:288] Stream error : Sync found after 640 bytes
[00:00:04:320] Stream error : Sync found after 640 bytes
[00:00:04:352] Stream error : Sync found after 67 bytes
[01:40:56:736] | Writing C:\Documents and Settings\Andrew\My Documents\My Videos\LC\LC AC3 T01 1+1ch 32Kbps DELAY 0ms_Fixed.ac3
[01:40:56:736] +---------------------
[01:40:56:736] Operation Completed !
[00:04:31:000] <-- Process Duration
Logging ends : 05/26/05 , 17:40:13.

The log file after encoding the fixed file says:
BeSweet v1.5b29 by DSPguru.
--------------------------
Using azid.dll v1.9 (b922) by Midas (midas@egon.gyaloglo.hu).
Using AC3enc.dll v1.20 (Feb 18 2004) by Fabrice Bellard (http://ffmpeg.org).
Manual Dynamic-Compression algorithm by LigH (author of WaveBooster).

Logging start : 05/26/05 , 17:41:37.

C:\Program Files\BeSweet\BeSweetv1.5b29\BeSweet.exe -core( -input C:\Documents and Settings\Andrew\My Documents\My Videos\LC\LC AC3 T01 1+1ch 32Kbps DELAY 0ms_Fixed.ac3 -output C:\Documents and Settings\Andrew\My Documents\My Videos\LC\LC AC3 T01 1+1ch 32Kbps DELAY 0ms_Fixed-New.ac3 -logfile C:\Program Files\BeSweet\BeSweetGUIv0.6\BeSweet.log ) -azid( -s stereo -c normal -g 0.95 -L -3db ) -boost( /b2=7 ) -ac3enc( -b 448 ) -profile( ~~~~~ Default Profile ~~~~~ )

[00:00:00:000] +------- BeSweet -----
[00:00:00:000] | Input : C:\Documents and Settings\Andrew\My Documents\My Videos\LC\LC AC3 T01 1+1ch 32Kbps DELAY 0ms_Fixed.ac3
[00:00:00:000] | Output: C:\Documents and Settings\Andrew\My Documents\My Videos\LC\LC AC3 T01 1+1ch 32Kbps DELAY 0ms_Fixed-New.ac3
[00:00:00:000] | Floating-Point Process: No
[00:00:00:000] +-------- AZID -------
[00:00:00:000] | Input Channels Mode: 1+1, Bitrate: 32kbps
[00:00:00:000] | Output Stereo mode: Stereo
[00:00:00:000] | Total Gain: 7.815dB, Compression: Normal
[00:00:00:000] | LFE levels: To LR -3.0dB, To LFE 0.0dB
[00:00:00:000] | Center mix level: BSI
[00:00:00:000] | Surround mix level: BSI
[00:00:00:000] | Dialog normalization: No
[00:00:00:000] | Rear channels filtering: No
[00:00:00:000] | Source Sample-Rate: 48.0KHz
[00:00:00:000] +-------- BOOST ------
[00:00:00:000] | Algorithm by : Dg
[00:00:00:000] | Boost Factor : 7.0
[00:00:00:000] | Limit Factor : 0.70
[00:00:00:000] +------- AC3ENC ------
[00:00:00:000] | Bitrate method : CBR
[00:00:00:000] | AC3 bitrate : 448
[00:00:00:000] | Channels Mode : 2.0
[00:00:00:000] | Error Protection: Yes
[00:00:00:000] +---------------------
[00:00:00.000] E12: No coupling strategy exists in first audio block
[00:00:00.032] E12: No coupling strategy exists in first audio block
[00:00:00.064] E12: No coupling strategy exists in first audio block
********************edited because of length*************************
[00:00:04.160] E12: No coupling strategy exists in first audio block
[00:00:04.192] E12: No coupling strategy exists in first audio block
[00:00:04.224] E12: No coupling strategy exists in first audio block
[00:00:04.256] E12: No coupling strategy exists in first audio block
[00:00:04.288] E12: No coupling strategy exists in first audio block
[01:40:56:736] Conversion Completed !
[01:40:56:736] Actual Avg. Bitrate : 448kbps
[00:08:55:000] <-- Transcoding Duration

Logging ends : 05/26/05 , 17:50:32.

The original file size is 331,088 KB, after fixing the file in Besliced it's size is then 331,009 KB and after encoding the fixed file with Besweet, it ends up as 331,228 KB.

I will try reauthoring wwith DVD Lab Pro and burning it.

Andrew.