I am using Adobe Media Encoder cs5 version 188.8.131.52 on a Windows XP Service Pack 3 32-bit machine. None of the wmv or avi files I try to encode have the audio track encoded. I have tried encoding with both the "F4V - Match Source Attributes" and "FLV - Web 640 x 480" presets. Neither of these encode the audio output at all. The audio track plays correctly in Windows Media Player. Has anyone else had this problem?
The AVI file I referred to in my original post is 120Gb, so a bit big to upload to the web. So, I have uploaded another sample that also does not encode sound. In this instance, the source AVI has the MP3 audio codec. The source AVI file sound plays correctly through Windows Media Player. I have used Adobe Media Player and also VLC Player to try to play the encoded FLV - neither produce sound.
The files can be found here -> http://www.axamedia.com.au/source.rar
Thanks for posting the clip. That file transcodes to F4V and FLV successfully, audio included, on my Windows 7 x64 machine. The resulting files play back audio as expected in After Effects, Adobe Media Player, and VLC.
1. Do the resulting files report as containing an audio stream? What are the parameters? In VLC, choose Tools > Media Info, Codec Details tab. The Project panel info in Premiere Pro or After Effects can also tell you this, as can applications like MediaInfo.
2. Are you changing the Export Settings in AME at all, or are you only using the presets as described in your first post?
3. Try a completely different file. Try a different format, like QuickTime, WMV, or MPEG. Does AME transcode the audio from that file?
The goal of question #1 is to determine if AME is having problems writing the audio on your machine. If isolated to this cause, there may be a system conflict or a problem with the AME application. Removing competing codec packages or reinstalling AME may solve this problem.
The goal of question #2 is to make sure that this problem is not user error. User education may solve this problem.
The goal of question #3 is to isolate the problem to a particular file type or file property. This may indicate a problem similar to question #1.
Thanks for your help.
So if there is an audio track in the F4V file, let's take the next step and check to see if there's anything in it. My preferred way to do this would be to drop the file into Premiere Pro and examine the waveform. Do you have Premiere Pro CS4, or a comparable application that can read F4V files, installed? Premiere Pro CS5 and CS5.5 require a 64-bit version of Windows 7 or Vista, and you're only on Windows XP 32-bit. If you have access to a 64-bit machine, you could download the trial of Premiere Pro CS5.5.
You could also use an audio editing application like Adobe Audition or maybe Audacity to look at the waveform. Worst-case scenario is to use the audio meters or audio visualizer in VLC or Windows Media Player to see if they are representing audio, but that doesn't give me as much confidence as viewing the waveform.
Note that an M4V file, by definition, does not contain audio. (M4V = MPEG-4 Video) An MP4 file, on the other hand, should contain audio.
Try an experiment: Pick one known good source file and use AME to export to a variety of outputs: AVI, QuickTime, H.264, and MPEG2 (the plain version, not the DVD or Blu-ray variants). Also do audio-only formats, MP3 and WAV. Which, if any, of these formats contain audio?
Assuming that none of them do, because the direction this problem appears to be headed is an overall failure of AME to encode audio, let's look at remediation procedures:
Many thanks for your suggestions so far.
I loaded the FLV into Audacity, and can confirm it does have a Waveform:
In frustration, I have completed a complete uninstall of CS5 Web Premium, then ran CS5 cleaner, removed the Adobe folder in %appdata% then reinstalled CS5 Web Premium. And guess what, it still does not work!
It would seem that there is clearly something installed or corrupt on my PC that is preventing the media encoder from working correctly.
I have made a bit of progress with helping to narrow down where the problem might be occurring. A work colleague has Adobe CS4 installed on his PC. I sent him the source video file and had him encode it. It did this successfully - the audio was correctly encoded. I then logged on to his PC and duplicated his steps. When I did it, the audio failed to encode.
I then had him log on to my PC (with CS5 installed - where I have never been able to encode audio) and had him encode the video using CS5. Again, this was successful - the audio encoded correctly.
So, it would appear that it is not my PC set-up, but rather something in my Windows profile is causing the problem. Do you know if there is anything in the Windows profile used by AME? I have already close AME, deleted the Adobe folder from %appdata% and then retried the encoding - but this failed to fix the problem.
Very interesting data, Wayne. Very interesting.
> I am not sure how to encode to the other formats using AME, so I could not complete these tests.
Sorry, that's my fault. Ignore that test. I didn't realize you are using the Web Premium suite. The other formats I referred to are only available if you have Premiere Pro, After Effects, or the Production Premium suite installed. (I knew this by subconscious deduction, actually, since those products require a 64-bit version of Windows 7 or Vista and you stated that you're on XP 32-bit. It just didn't trickle out to my conscious brain.)
Let's back off for a second and review what we know. Please correct me if I'm wrong about any of these points.
So, yes, this is most intriguing. The difference in your ability to hear your source files but not the encoded files is most curious.
I do wonder:
The only thing I can think of that is unique about the formats that you are using AME to encode to (FLV, F4V, and H.264) is that those formats all use compressed audio. MP3 in the FLV format, and AAC in F4V and H.264. (FYI - F4V is simply H.264 insided of a Flash video wrapper.) What could be unique under your user account related to that? I don't know. Possibly if there is a utility on your machine related to compressed audio, that might be intercepting the audio stream in some way. Do you have any software designed for capturing compressed audio from the Internet? Or it could be related to the audio card drivers on your machine.
It might be worth sniffing around the %appdata% folder on your account and temporarily disposing of the folders for other programs. If you can isolate something that way, you may be on the right path.
You might also want to run msconfig (Start > Run > msconfig) to disable background applications and services that could be hijacking the audio. Go to the Startup tab there, clear everything, reboot, and see what happens. If that works, start putting the services back one-by-one until you find the culprit.
I finally have it working (hooray) - msconfig was the key. After trying quite a few different things, I went into MSCONFIG and restarted my PC in Diagnostic Startup. I then encoded the video on my hard drive. I then restarted my PC in Normal Startup. The video that I just encoded had sound! I then re-encoded it with Normal Startup, and that also worked. It is now running correctly all of the time. Somehow, running it in Diagnostic mode must have killed the setting that was causing it to error.
Many thanks for your help - it has been a very frustrating few days.
Glad the problem is solved, Wayne. Wish I had a good explanation, and I would be tempted to isolate the problem further, but if all is working now then best not to upset the spirits in the machine. Just remember to occasionally sacrifice a floppy disk in their honor to keep your computer in good working order.
I am having the same issue. WIndows 7 64bit machine
It is happening to both recently (today) encoded files and ones form more than a year ago. Those older files I know have sound on them.
These file splay back fine on my laptop(same operating system) but not in my editing machine.
I do have soud when playing wmv and avi source files in windows player.
just no flash video sound
Has anyone come up with a solution, or any ideas, about this problem on Macs? I've upgraded to the latest version of Media Encoder. Starting with an .avi file. Video is fine, but no audio. I looked in VLC, as someone suggested earlier in the thread, and audio appears to be there. But the audio won't play, not even in VLC. I'm not sure what to use in place of Media Encoder, if this won't work.*
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