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Old 5th January 2006, 00:21   #1  |  Link
Fugdefino
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AVI2DVD: Audio (AC3) Extraction issue

I'm encountering an audio issue when converting several avi files containing ac3 audio. Basically, not all of the audio is extracted from the original avi, resulting in an mpeg file that has incomplete audio, i.e the last avi I converted was 52 minutes in length. While the resulting mpeg file was also 52 minutes in length, after 40 minutes there is no audio.

I've tried the doing a direct stream copy (audio&video) with VDubMod and also selected DVD2SVCD's internal audio extraction, but to no avail.

Any suggestions? Thanks.
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Old 6th January 2006, 00:25   #2  |  Link
Fugdefino
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Just tested the same problematic files with DVD2SVCD 1.2.2 build 3. No such problems. Audio in mpeg file is the correct length and in sync with video.
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Old 6th January 2006, 20:47   #3  |  Link
Fugdefino
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Ok, I spoke too soon. Problem also exists with DVD2SVCD 1.2.2 build 3. Anyway, here's my BeSweet log:

Code:
BeSweet v1.5b26 by DSPguru.
--------------------------
Using azid.dll v1.9 (b922) by Midas  (midas@egon.gyaloglo.hu).
Using Shibatch.dll v0.24 by Naoki Shibata & DSPguru (shibatch.sourceforge.net).
Using MP2enc.dll v1.129 (23/5/2002), Engine 1.129 <http://www.cdex.n3.net>.

Logging start : 01/06/06 , 13:40:17.

C:\Program Files\DVD2SVCD\BeSweet\BeSweet.exe -core( -input C:\Program 

Files\DVD2SVCD\Movie\1\Extracted_audio_1.ac3 -output C:\PROGRA~1\DVD2SVCD\Movie\1\Encoded_audio_1.mp2 -logfile 

C:\PROGRA~1\DVD2SVCD\Movie\1\Encoded_audio_1.log ) -azid( -L -3db -l 0db -c normal -s surround -g max ) -ota( -r 

23976 25000 ) -shibatch( --rate 48000 ) -2lame( -e -b 192 -m s ) 

[00:00:00:000] +------- BeSweet -----                          
[00:00:00:000] |  Input : C:\Program Files\DVD2SVCD\Movie\1\Extracted_audio_1.ac3
[00:00:00:000] |  Output: C:\PROGRA~1\DVD2SVCD\Movie\1\Encoded_audio_1.mp2
[00:00:00:000] |  Floating-Point Process: Yes
[00:00:00:000] +-------- AZID -------                              
[00:00:00:000] |  Input Channels Mode: 3/2, Bitrate: 384kbps
[00:00:00:000] |  Output Stereo mode: Dolby surround compatible
[00:00:00:000] |  Total Gain: 17.698dB, 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] +-------- FRC --------
[00:00:00:000] |  Source Frame-Rate: 23976
[00:00:00:000] |  Dest.  Frame-Rate: 25000
[00:00:00:000] +------- MP2ENC ------
[00:00:00:000] |  Bitrate method  : CBR
[00:00:00:000] |  MP2 bitrate     : 192
[00:00:00:000] |  Channels Mode   : Stereo
[00:00:00:000] |  Error Protection: Yes
[00:00:00:000] +---------------------
[00:00:25.440] E7: CRC error
[00:00:25:504] Stream error : Sync found after 1145856 bytes
[00:00:44.032] E7: CRC error
[00:00:44:128] Stream error : Sync found after 674304 bytes
[00:01:09.984] E7: CRC error
[00:01:10:112] Stream error : Sync found after 545280 bytes
[00:01:40.160] E7: CRC error
[00:01:40:320] Stream error : Sync found after 718848 bytes
[00:01:55.904] E7: CRC error
[00:01:56:096] Stream error : Sync found after 559104 bytes
[00:02:16.384] E7: CRC error
[00:02:16:608] Stream error : Sync found after 671232 bytes
[00:02:59.040] E7: CRC error
[00:02:59:296] Stream error : Sync found after 1362432 bytes
[00:03:31.616] E7: CRC error
[00:03:31:904] Stream error : Sync found after 2750976 bytes
[00:06:38.496] E7: CRC error
[00:06:38:816] Stream error : Sync found after 895488 bytes
[00:09:06.912] E7: CRC error
[00:09:07:264] Stream error : Sync found after 824832 bytes
[00:10:02.720] E7: CRC error
[00:10:03:104] Stream error : Sync found after 599040 bytes
[00:10:26.048] E7: CRC error
[00:10:26:464] Stream error : Sync found after 1342464 bytes
[00:10:52.288] E7: CRC error
[00:10:52:736] Stream error : Sync found after 1159680 bytes
[00:13:30.624] E7: CRC error
[00:13:31:104] Stream error : Sync found after 3978240 bytes
[00:15:20.416] E7: CRC error
[00:15:20:928] Stream error : Sync found after 738816 bytes
[00:19:09.056] E7: CRC error
[00:19:09:600] Stream error : Sync found after 963072 bytes
[00:20:08.288] E7: CRC error
[00:20:08:864] Stream error : Sync found after 2119680 bytes
[00:20:16.032] E7: CRC error
[00:20:16:640] Stream error : Sync found after 594 bytes
[00:21:28.928] E7: CRC error
[00:21:29:568] Stream error : Sync found after 1233407 bytes
[00:21:45.184] E7: CRC error
[00:21:45:856] Stream error : Sync found after 655872 bytes
[00:22:23.488] E7: CRC error
[00:22:24:192] Stream error : Sync found after 1138176 bytes
[00:22:42.048] E7: CRC error
[00:22:42:784] Stream error : Sync found after 946176 bytes
[00:26:35.520] E7: CRC error
[00:26:36:288] Stream error : Sync found after 1256448 bytes
[00:27:10.208] E7: CRC error
[00:27:11:008] Stream error : Sync found after 890880 bytes
[00:27:56.896] E7: CRC error
[00:27:57:728] Stream error : Sync found after 1245696 bytes
[00:28:36.704] E7: CRC error
[00:28:37:568] Stream error : Sync found after 895488 bytes
[00:28:59.456] E7: CRC error
[00:29:00:352] Stream error : Sync found after 1222656 bytes
[00:31:20.608] E7: CRC error
[00:31:21:536] Stream error : Sync found after 1311744 bytes
[00:31:43.648] E7: CRC error
[00:31:44:608] Stream error : Sync found after 1062912 bytes
[00:32:05.440] E7: CRC error
[00:32:06:432] Stream error : Sync found after 726528 bytes
[00:32:55.648] E7: CRC error
[00:32:56:672] Stream error : Sync found after 545280 bytes
[00:38:00.928] E7: CRC error
[00:38:01:984] Stream error : Sync found after 884736 bytes
[00:39:18.816] E7: CRC error
[00:39:19:904] Stream error : Sync found after 542208 bytes
[00:41:01:568] Conversion Completed !
[00:41:01:568] Actual Avg. Bitrate  : 184kbps
[00:05:25:000] <-- Transcoding Duration

Logging ends : 01/06/06 , 13:45:42.
Any ideas?
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Old 7th January 2006, 04:22   #4  |  Link
jshumate
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Try demuxing the audio and converting it manually with BeSweet. I haven't used DVD2SVCD in a few years, but I do know that if your source has problems or anything unusual in it, DVD2SVCD will barf on it and do things like what has happened to you. Since it's an AVI file and probably DivX or Xvid, there might be a bad frame that is giving DVD2SVCD some problems.
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Old 8th January 2006, 03:11   #5  |  Link
Fugdefino
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Tried that. Unfortunetely the resulting audio file is only 22 minutes in length (audio in avi file is 52 minutes).
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Old 8th January 2006, 03:48   #6  |  Link
setarip_old
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Hi!
Quote:
I'm encountering an audio issue when converting several avi files containing ac3 audio.
Why don't you just re-rip the audio with either DVD Decrypter v.3.5.4 or SmartRipper, from your original, purchased DVD?
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Old 8th January 2006, 13:18   #7  |  Link
Nick
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That is presuming his AC3 file is DVD-sourced.
For example some (eg JVC Everio) camcorders output in AC3.

However, looking at that log, I would agree that the source file is corrupt and should, if possible be remade or repaired. I don't see this as a problem with DVD2SVCD or BeSweet. I think this is simply a poor source.
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Old 9th January 2006, 08:20   #8  |  Link
ChickenMan
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As per your first post, your talking about AVI's. If DVD2SVCD or VirtualDUB cant extract/demux the audio, simply load the AVI into GoldWAVE and save out as WAV, then use what-ever to convert to mp2 or ac3.
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