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No audio when loading AVI…
I’m using Premiere CS6 and I have a AVI file that loads video just fine, but no audio. In windows movie maker, the same file loads audio, but no video. VLC Player can play the file perfectly (audio and video) so I clearly have the right codecs installed.
I ran a program called gspot on the file, and it identified the video codec as “xvid”, and the audio codecs as – “ac3 (0x2000) Dolby Laboratories, Inc”. Is it possible to just point adobe to whatever codec VLC is using? I came across a post some guy made suggesting I copy this “ad2ac3dec.dll” file into the root premiere pro directory. He claimed it solved similar issues for him, but it didn’t work for me (I put the dll in my Adobe/Adobe Premiere Pro CS6 directory).
Any ideas?
Thanks!
*I would rather not convert the file first, as I have to edit these regularly, and don’t want to have to convert every time.
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11 Replies
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So what’s likely happening is this is a directshow codec, and sadly there aren’t as many 64 bit DirectShow codecs as there are 32 bit. If you find a 64 bit ac3 directshow codec this should do what you like.
Of course you can also rip the audio stream out in whatever app you like, and put them together in the premiere sequence.
Good luck,
-EricS -
But if VLC (and windows movie maker) play the audio just fine, clearly I “have” the working codec. Adobe just cant find it?
Can I manually track it down and put it in the adobe directory?
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Not exactly, no. Premiere Pro’s AVI importer is running in a 64 bit context, VLC and Movie Maker are both 32 bit apps, as is Windows Media Player in the contexts I’ve seen. What this means it they are only able to use and load codecs (or DirectShow components in this case, if VLC Player is using DShow) that are registered, and matching the application depth. It basically boils down to components must match for the depth of the app requesting them (32 – 32, 64 – 64).
Now, there are vendors who provide Direct Show components in both 32 and 64 bit depths, MainConcept comes to mind, I’m sure there are others.
https://www.mainconcept.com/products/plug-ins/decoding/decoder-packs.html
It might be worth trying their demo to see if it suits your needs. You are specifically looking for 64 bit Direct Show components. Do be careful installing any old codec though, as I’m sure you know.
Good luck!
-EricS -
Ok so I need a 64 bit version of this “ac3 (0x2000) Dolby Laboratories, Inc” audio codec? I assume my video codecs are fine, since the video is displaying properly, I just need a audio codec?
I took a look on that site you linked, I didn’t see anything…
Has anyone else had this problem? And were you able to simply drop a 64 bit codec into your premiere directory and get audio working?
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Import that file into After Effects and see if you get audio there. If you do, just export a .wav and relink in PPro. That’s how I used to get around troublesome .avi’s.
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Was really hoping there would be a way to do it by just copying a codec to the premiere directory. I have a ton of these vids so even a simple process like you described would add up to a lot of wasted time in the long run.
I just can’t wrap my head around why vlc/windows movie maker/wmp all play the audio just fine. I mean come on adobe, would it really be that hard to just use the existing system codecs to extract the audio? Even if it is slow/inefficient, its just an audio clip, im sure my cpu can handle the internal behind the scenes conversion.
It seems like if I could just find the right codec, I could drop it in that directory. Many people in the past have done that to solve similar missing audio problems (like the one i linked)…
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Have you tried just bringing the clip into AME? If it works there you can convert all the clips in one fell swoop.
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The problem is i have to edit new clips regularly, so even if its quick, itd be a reoccuring thing that could add up fast.
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But if AME can read the audio then just make a new clip from there. Make a preset and batch the whole lot into something that you can use forever.
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I work on new clips regularly, so it would be nice not to have to launch a separate program, export, import, etc… I’m not saying there are not workarounds, I’m saying I shouldn’t have too.
And I just discovered another clip I have, this ones mp4. Plays fine in vlc AND windows movie maker. Premiere of course cant figure out how to load the audio. I dragged the clip into gspot and it said “unknown” for the audio codec, but I would HOPE a high end product like Premiere would be able to figure it out (since other freeware apps can).
Something is just wrong. There is no reason why I should be having this much trouble. At this point, it’s not about the time it would save me (clearly I’ve wasted more time on these forums than it would take to just convert the files), its about the principle.
There HAS to be a way to ‘trick’ premiere into using one of the codecs that clearly work fine in other video editors and players.
*Just found a WMV that also wont loads video, but no audio. gspot says its codec is also “n/a”, but it plays/edits fine in other apps.
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