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| airdave |
| Posted: Aug 7 2007, 01:54 PM |
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Sorry, looked for an answer before posting this but haven't found what I need...
I use Vdub for a number of video issues, most often to adjust volume levels.
Past experience with VBR has been:
load the file, adjust the volume, save as AVI
and sometimes (not all the time) experience an audio synch problem.
In that case, I just live with the file I have.
But now, all of a sudden, any VBR file that I try to alter
will not save...I get this error:
"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."
(For volume adjust, I run Direct Stream Video and Full Process Audio.
and I "save as AVI" regardless of size)
I have used GSpot to verify that the required codecs ARE in fact installed
and of course the file(s) plays perfectly in a number of different players.
I have removed Vdub and re-installed latest version - no change.
What has changed for me?
Do I really have the correct audio codecs? or is there something wrong with Vdub?
thanks in advance for any assistance! |
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| foxidrive |
| Posted: Aug 8 2007, 12:52 AM |
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What is the audio codec identified as? |
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| airdave |
| Posted: Aug 8 2007, 01:18 PM |
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I sampled 6 videos that will not "save" with GSpot
(because of this issue)
and here are the audio codec infos:
0x0055 MPEG-1 Layer 3 - 48000Hz 128 kb/s tot , Joint Stereo
0x0055 MPEG-1 Layer 3 - 48000Hz 125 kb/s tot , Joint Stereo LAME3.90.
0x0055 MPEG-1 Layer 3 - 48000Hz 126 kb/s tot , Joint Stereo LAME3.96r |
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| airdave |
| Posted: Aug 8 2007, 01:57 PM |
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| airdave |
| Posted: Aug 8 2007, 02:01 PM |
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| foxidrive |
| Posted: Aug 8 2007, 04:55 PM |
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When you open the video in Virtualdub, can you post a screenshot of File menu > Information?
Also, when you select the audio codecs what does it show for the MP3 codec? |
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| DarrellS |
| Posted: Aug 8 2007, 05:30 PM |
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First off, you cannot adjust audio levels in Virtualdub. You need and audio editor to do this.
Second, if you don't save the VBR audio as an uncompressed wave with Virtualdub first, it will be out of sync every time. I use Goldwave to open the AVI (audio), adjust the volume, save as 16bit wave file and put that file back in the avi with VDub.
In GSpot, under MS A/V at the bottom, click 1 to see what is decompressing the audio. You will probably get an error there. The Lame codec is not a decompressor. It's an encoder.
Download the Fraunhofer mp3 audio decoder...
http://www.free-codecs.com/download/MPEG_L...yer_3_Codec.htm |
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| airdave |
| Posted: Aug 9 2007, 01:00 AM |
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foxidrive - I will get that screenshot up asap
as far as codecs go...I don't usually choose a codec.
I am making minor alterations before I burn a file to DVD
(maybe I just want to up the audio level a bit)
I save as AVI...and apply no compressions.
(The file size is unimportant because I will burn it and then delete it)
- in response to the last comments...
I have been using Vdub to adjust audio levels
on hundreds of files, for over 2 years!
Choose Audio full, Volume, and adjust the volume level to the desired amount.
And as for VBR files, no...not every one has a synch problem when resaved.
It has always been hit and miss, some work, some don't.
Fraunhofer....already got
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| airdave |
| Posted: Aug 9 2007, 01:14 AM |
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| foxidrive |
| Posted: Aug 9 2007, 09:00 AM |
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Thanks. You would generally select an audio codec, and adjust its settings, to cement the audio format in place when converting volume. If you do not have an MP3 audio codec listed then install the LAME codec. |
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| airdave |
| Posted: Aug 9 2007, 12:55 PM |
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I am sorry...I do not understand what you are telling me to do?
As I have always done, I rag and drop a video file into VirtualDub
The window opens and I can start viewing the file if I wanted to
(usually I don't bother, unless I am attempting to adjust contrast, sharpness, etc
or maybe join split files together)
If all I am trying to do is bump up the volume a little,
I choose "Video - Direct" and "Audio - Full"
Then I click "Volume", set the volume level
and then I choose "Save as AVI"
(I never bother with any compressions for Audio or Video)
The newly saved file is sometimes quite large, but is burned to DVD and then deleted.
When would I be choosing a video or audio codec and why?
If the file opens and plays (in any program) then does that not mean the correct
decompressing codec is being used??
So why can't Vdub save the file?
Or are you just referring to the process of avoiding synch errors with VBR files? |
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| foxidrive |
| Posted: Aug 9 2007, 01:21 PM |
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People usually use compressed formats to keep the filesize down... which is why and when you use video and audio compression codecs.
I can't help with the error though, sorry.
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| squid_80 |
| Posted: Aug 9 2007, 05:00 PM |
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The file that you posted the AVI Information for - is it one that works or doesn't work? Post the information from the same file you used earlier for the error message. I would also suggest updating virtualdub to version 1.7.2. |
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| DarrellS |
| Posted: Aug 9 2007, 08:59 PM |
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| QUOTE | I have been using Vdub to adjust audio levels
on hundreds of files, for over 2 years!
Choose Audio full, Volume, and adjust the volume level to the desired amount. |
Well I'll be danged. I've been using Virtualdub for over seven years and never knew that there was a volume adjuster. Thanks. I guess I've never had to change the volume of an AVI. Most of the files that I work on were done correctly the first time.
As for VBR, it is enough of a problem to not even chance doing with Virtualdub. VirtualdubMod might work or Avidemux will usually fix the problem. It's quick enough to just save the wave and recompress it though.
If you want to defend VBR as a viable option for AVI in this forum, you will get no support though.
As for the problem that you posted "error initializing audio stream decompression", did you click on the 1 under MS A/V in GSpot? It will tell you what is trying to decompress the file and if it did or why it didnt work. If you do have the codec installed and it is working then if you click 2, the video should play in the built-in player and you should hear the audio.
Just having the codec may not be the answer if it is not registered or something else may be installed thet is over riding the decompressor. It's strange that you have been decompressing these files for over two years but all of a sudden they stopped. Anything is possible with MS though. |
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| airdave |
| Posted: Aug 9 2007, 09:49 PM |
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yeah....seems like everytime you get a new version or update of one program,
another program starts having problems.
we tend to forget how even the most distant relate programs
may share similar features or components.
I like the theory that some other program has overridden or altered my Vdub.
and hey, I didn't create the files with VBR
and don't completely understand the pros or cons...
I believe everything I have shown so far has been from the same movie file. |
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