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Saturday 27.9.2025 / 01:47
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afterdawn.com > forums > archived forums > mpeg-1 and mpeg-2 encoding (avi to dvd) > out of sync sound
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out of sync sound
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markbaka
Newbie
_ 		12. August 2003 @ 01:49 _ Link to this message    Send private message to this user   
i use virtualdub to extract the audio from avi files as when i encode with tmpgenc to mpeg it never does the sound, a friedn recommended using virtualdub to extract the sound as a wav then using it as the audio input when encoding using tmpgenc, however now whenever i try to burn a vcd/ svcd the sound is horribly out of sync


anyone got any suggestions
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mac71
Suspended due to non-functional email address
_ 		12. August 2003 @ 11:51 _ Link to this message    Send private message to this user   
If the audio is fine when playing back the AVI I seriously would not recommend seperating the audio from the video. When seperating the audio from the video this will cause major out of sync problems.

Try encoding the AVI without seperating the audio and see if you still have the out of sync problem.

Post the results.
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alntht
Suspended due to non-functional email address
_ 		12. August 2003 @ 13:42 _ Link to this message    Send private message to this user   
I have had the problem with TEMPGenc not doing the audio from the AVI. My audio is always mp3. What is your audio?
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markbaka
Newbie
_ 		12. August 2003 @ 15:27 _ Link to this message    Send private message to this user   
ok well i really shud av read other messages first

instead of seperatin audio from video i uncompressed the audio of the AVI using VirtualDub an saved as AVI rather than extractin a wav, i then used this to encode to mpeg an it all worked hunkydory
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Komputer
Junior Member
_ 		12. August 2003 @ 16:14 _ Link to this message    Send private message to this user   
Glad to hear everything worked out. I am having the same problem, my AVI file is fine but once I encode with TMPG the audio goes out of sync.

Could you kindly give me a step by step on extracting a WAV with VirtualDub I would REALLY appreciate it!

Thanks alot
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This message has been edited since posting. Last time this message was edited on 12. August 2003 @ 16:29
Komputer
Junior Member
_ 		12. August 2003 @ 17:06 _ Link to this message    Send private message to this user   
I 'opened video file' in VirtualDub and chose save WAV.

Then in TMPG I uploaded the AVI as video and the wav as audio, then started encoding. and the audio is still out of sync?
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Dela
Staff Member
_ 		14. August 2003 @ 08:27 _ Link to this message    Send private message to this user   
if you seperate the audio from the video with TMPGEnc, chances are you will get out of syunc audio!
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PlymWS
Suspended due to non-functional email address
_ 		15. August 2003 @ 03:25 _ Link to this message    Send private message to this user   
I have found the easiest way to correct this is to strip the audio stream out and re-encode it to MP3 using VirtualDub and the Lame MP3 codec.

Download and install the Lame MP3 codec. Load the file in VirtualDub and click on the Audio tab. Click Full processing Mode and then compression. Select the Lame codec and then the attributes to the left.

Click save as wav and the resulting mp3 file will be produced. Now use this as your audio stream in TMPGEnc and everything should be OK.
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Dela
Staff Member
_ 		16. August 2003 @ 05:26 _ Link to this message    Send private message to this user   
Yep, that would work, but even though the lame encoder is by far the best IMHO, there is still quality loss in the transcoding so its always best to find a way to use the source audio!
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