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| NorthstarATL |
| Posted: Dec 16 2012, 08:21 PM |
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Newbie
Group: Members
Posts: 6
Member No.: 34812
Joined: 6-May 12
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Hi! New here, and tried to find an existing thread, but couldn't. On MP4 files opened with VirtualDub I get this message when attempting to play the file while processing: "No audio decompressor could be found to decompress the source audio format (Source format tag 00ff)"
I installed ac3 and ac3acm codecs and still no fix. Am I missing a codec or a step? Looking through Google I mostly get installing the two above codecs as the 'fix', but it's not happening with my computer.
Thank you for any help!  |
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| Abrazo |
| Posted: Dec 16 2012, 08:34 PM |
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Advanced Member
Group: Members
Posts: 775
Member No.: 28995
Joined: 5-November 10
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"00ff" should be the AAC ACM (and "2000" should be the AC3 ACM).
So, download and install the AAC ACM that you can find at:
http://gral.y0.pl/~fcchandler
(thanks to gral for hosting a copy of fccHandler's stuff)
Via Windows Media Player > Help > About Windows Media Player > Technical Support Information,
you can get a list of installed Audio and Video codecs on your pc. |
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| NorthstarATL |
| Posted: Dec 17 2012, 04:58 PM |
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Newbie
Group: Members
Posts: 6
Member No.: 34812
Joined: 6-May 12
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Thanks for the reply! I'd attempted adding that plug in before, and it hadn't worked. I uninstalled the old, and replaced it with the one in the link, and still the same problem.  |
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| dloneranger |
| Posted: Dec 17 2012, 06:14 PM |
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Moderator
Group: Moderators
Posts: 2366
Member No.: 22158
Joined: 26-September 07
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This trouble with people installing .inf files comes up a lot
Try this installer I just put together
It's in my sig
Close virtualdub
Install aac codec
Open virtualdub and open file
Does it work then?
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MultiAdjust JoinWav WavNormalize FFMPeg Input Plugin v1827 UnSharpMask
Windows7/8 Codec Chooser
All FccHandlers Stuff inc. Installers for acm codecs AAC, AC3, LameMp3 |
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| NorthstarATL |
| Posted: Dec 18 2012, 04:59 PM |
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Newbie
Group: Members
Posts: 6
Member No.: 34812
Joined: 6-May 12
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Thanks for the assist! I downloaded the AAC installer from your sig and it failed, but gave me this message:
"unable to execute file:
C:\Windows\system 32\InfDefaultInstall.exe
CreateProcess failed; code 740.
The requested operation requires elevation."
I attempted the AC3 installer just to see what would happen with it, and it gave me the same result. Does this mean I have a default which is blocking installs?
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| dloneranger |
| Posted: Dec 18 2012, 05:35 PM |
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Moderator
Group: Moderators
Posts: 2366
Member No.: 22158
Joined: 26-September 07
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Ah, the installer has changed a bit
Updated them to run the windows installer as admin
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MultiAdjust JoinWav WavNormalize FFMPeg Input Plugin v1827 UnSharpMask
Windows7/8 Codec Chooser
All FccHandlers Stuff inc. Installers for acm codecs AAC, AC3, LameMp3 |
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| NorthstarATL |
| Posted: Dec 19 2012, 05:31 PM |
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Newbie
Group: Members
Posts: 6
Member No.: 34812
Joined: 6-May 12
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Sorry it took so long to check those out! Unfortunately they failed to install. The exact same message in both cases. |
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| dloneranger |
| Posted: Dec 19 2012, 05:53 PM |
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Moderator
Group: Moderators
Posts: 2366
Member No.: 22158
Joined: 26-September 07
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That's odd, they work fine here and on my virtual machines
When they run, you do get the User Account Control 'do you want to allow this to make changes' dialog appear?
If you answer yes, then they are run elevated
If you don't, then try right clicking on them and selecting 'run as administrator'
[edit]
Tested on win7 and win8, 32bit and 64bit, both with and without UAC turned on
Everything worked as expected
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MultiAdjust JoinWav WavNormalize FFMPeg Input Plugin v1827 UnSharpMask
Windows7/8 Codec Chooser
All FccHandlers Stuff inc. Installers for acm codecs AAC, AC3, LameMp3 |
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| NorthstarATL |
| Posted: Dec 20 2012, 03:24 AM |
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Newbie
Group: Members
Posts: 6
Member No.: 34812
Joined: 6-May 12
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I chose 'run as administrator' initially, and the error notice was given. What I'm going to attempt is redownloading and then searching for AAC or AC3 codecs already on the system. Perhaps there's an instance where they are not up to date and therefore not working with MP4, but blocking an 'upgrade'? |
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| NorthstarATL |
| Posted: Dec 20 2012, 03:54 AM |
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Newbie
Group: Members
Posts: 6
Member No.: 34812
Joined: 6-May 12
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YES! OK, what I said I was doing in my last post did not work, BUT I realized midway through that, as you pointed out, it was the UAC that was blocking (why exactly I need to look into, as I am the only user on this computer), so I shut off the UAC in order to install, and VOILA! it worked! Ran VirtualDub on an MP4 and was able to play audio as well as video! Thank you SO much!  |
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