Hi.
When I use Vdub to convert certain types of AVI files (so that they use less HDD space) Vdub throws up the message:
"Error initializing audio stream decompression:
No installed audio codec could be found to decompress the compressed source audio.
Check to make sure you have the required codec."
I've used GSpot to identify the codecs required and apparently, I have them already installed. This is evident, as the videos alway play fine in Media Player Classic (whjich apparently has its own codecs anyway!), Windows Media Player or whichever player I use to play the files. It's just Vdub that won't process them.
A technique I came up with to get around the issue was:
1. Use Nero to burn the video (or rather, simulate burning, as I only need the VCD file created, so I can just use the temp file Nero creates instead of actually burning a disc) to VideoCD. Nero has its own audio codecs and seems to be able to burn any video you throw at it.
2. Pull the VCD file which it creates into Vdub and extract the audio to a .WAV file.
3. Multiplex the video file and the .WAV created above in Vdub by selecting "WAV audio" (from the Audio menu) in Vdub and browsing to the .WAV file and using the original video file. I usually set the compression of the audio to mp3 128kbps. (ie. by selecting Audio->Compression->MPEG Layer III.). The video is set to compress using the Divx 5.2.1 codec.
To my surprise, there have never been sync issues with this method; the audio has been perfectly synched to the video every time I've done it...
... When the multiplexed .AVI file is played on my PC that is.
When I play it on my DVD player (which plays Divx CDs/DVDs), it is also synched - until I fast forward or rewind the divx, at which point the audio goes out of sync by a fraction of a second or so - enough for you to notice when playing it back. At this point, the only way I can return to synched audio is by stopping and restarting the dvix and *not* fast forwarding or rewinding at all - not always easy/possible.
.AVIs which are not multiplexed play fine on the DVD player, and can be fast forwarded or rewound to my heart's content.
Has anyone else experienced this sort of thing? If so, my question is: do you have any idea WHICH codec would be required for VirtualDub to be happy so that I no longer need to use the above multiplexing process, thereby avoiding the sync problem?
Typical examples of the kind of file which gives problems are those ending "xvid.xor.[VTV].avi". Those ending, for example, in "xvid-lol.avi" are common examples of those files which work fine.
Apologies if there is too much or not enough info in some places, but I want to try and be as specific as possible without giving what may be giving unnecessary detail to try and isolate the problem and get it sorted ASAP; been going on too long now! Anyone out there experienced something *very* similar and know exactly *why* it may be happening, cos I can't figure it out!
If you need me to provide more info about whatever aspect, just reply and let me know what you need to know and I'll get it up here! *Really* gotta find a solution to this issue ASAP now...
Thanks,
i.
When I use Vdub to convert certain types of AVI files (so that they use less HDD space) Vdub throws up the message:
"Error initializing audio stream decompression:
No installed audio codec could be found to decompress the compressed source audio.
Check to make sure you have the required codec."
I've used GSpot to identify the codecs required and apparently, I have them already installed. This is evident, as the videos alway play fine in Media Player Classic (whjich apparently has its own codecs anyway!), Windows Media Player or whichever player I use to play the files. It's just Vdub that won't process them.
A technique I came up with to get around the issue was:
1. Use Nero to burn the video (or rather, simulate burning, as I only need the VCD file created, so I can just use the temp file Nero creates instead of actually burning a disc) to VideoCD. Nero has its own audio codecs and seems to be able to burn any video you throw at it.
2. Pull the VCD file which it creates into Vdub and extract the audio to a .WAV file.
3. Multiplex the video file and the .WAV created above in Vdub by selecting "WAV audio" (from the Audio menu) in Vdub and browsing to the .WAV file and using the original video file. I usually set the compression of the audio to mp3 128kbps. (ie. by selecting Audio->Compression->MPEG Layer III.). The video is set to compress using the Divx 5.2.1 codec.
To my surprise, there have never been sync issues with this method; the audio has been perfectly synched to the video every time I've done it...
... When the multiplexed .AVI file is played on my PC that is.
When I play it on my DVD player (which plays Divx CDs/DVDs), it is also synched - until I fast forward or rewind the divx, at which point the audio goes out of sync by a fraction of a second or so - enough for you to notice when playing it back. At this point, the only way I can return to synched audio is by stopping and restarting the dvix and *not* fast forwarding or rewinding at all - not always easy/possible.
.AVIs which are not multiplexed play fine on the DVD player, and can be fast forwarded or rewound to my heart's content.
Has anyone else experienced this sort of thing? If so, my question is: do you have any idea WHICH codec would be required for VirtualDub to be happy so that I no longer need to use the above multiplexing process, thereby avoiding the sync problem?
Typical examples of the kind of file which gives problems are those ending "xvid.xor.[VTV].avi". Those ending, for example, in "xvid-lol.avi" are common examples of those files which work fine.
Apologies if there is too much or not enough info in some places, but I want to try and be as specific as possible without giving what may be giving unnecessary detail to try and isolate the problem and get it sorted ASAP; been going on too long now! Anyone out there experienced something *very* similar and know exactly *why* it may be happening, cos I can't figure it out!
If you need me to provide more info about whatever aspect, just reply and let me know what you need to know and I'll get it up here! *Really* gotta find a solution to this issue ASAP now...
Thanks,
i.
Comment