I am having a similar problem.  If I export a timeline fom premiere pro using media encoder the output file has audio.  If I feed the same clip I used in premiere directly into media encoder it has no audio.

I've tried every setting I can and have disabled the metadata output but nothing works.  I believe media encoder is failing to conform the audio.  Does anyone have any suggestions?  I cannot believe that there's not a solution for this yet!  Common adobe fix this!!!!!

Hi Mark,

This footage was shot using a Sony NX5.  It is AVCHD muxed .MTS.  It's faily large, over 300MB, but theres a link to it here: www.orderlockwood.com/AMEaudio.zip.

I've been doing further testing and I'm having a hard time replicating this problem.  I've tried recording clips in the camera and encoding them, and they all seem to work.  It appears that there is something peculiar with this batch of files, which were all shot on one SD card.  Footage from the second day of shooting is all fine.

All of the clips in question will not export audio from AME CS6 on both of my computers.  They will export audio through Premiere Pro, and through AME CS5 on a third computer.  I do not recall if the audio format for this clip was Dolby or LPCM, but I wonder if that could play a part.

What could cause something like this?  A bad SD card?  A setting on the camera?  Can you elaborate as to why it would work when exported from Premiere and AME CS5 but not CS6?  Thanks for your help!

Hmm that's odd.  Now I'm really baffled.  On my machine it the audio track is there but it is totally silent, no waveform or level.

I have confirmed the output clip has no sound by playing the output file in windows media player, VLC and importing the clip into premiere pro.  I am using the ipad2 1080p preset.  I can guarantee you that I did not accidentally demux and export audio was selected. 

I have also tried outputting wave audio and I get the same thing.  It creates the file, but there is no waveform or level, just silence.

Have you imported the clip into Premiere Pro and listened to it?  Can you hear sound?

Here's a link to the file AME outputs for me: www.orderlockwood.com/AMEnoaudio.zip  If you download it you will see that it has an audio track attached with no waveform or levels, it's totally silent.

Hi Dima,

Thanks for your input.  I've tried deleting the common files but it makes no difference.

I can move on since I know this isn't happening on other machines, but I'm happy to try anything else to try to fix this... I'm baffled by this.

I'm a newby, but I think I'm having the same problem. I have a clip from a Sony RX100. The sound is there when I play the original .MTS file, but I've tried several different settings, and I get no sound when rendered by Adobe Media Encoder. CS6.01, OS10.7.4.

Is this a bug, or an unsupported feature?

I can confirm that the latest AME version 6.0.2.81 did NOT RESOLVED the missing audio issue in my case (for m2ts file types).  I updated to the latest version and were having the same issue. 

But after installing the trial version of Premier Pro CS6, the issue got resolved.  So, it is very clear that AME installation was missing some important files, not sure which ones!!! Adobe developers are not able to reproduce the issue just because they may be having AME and Premier Pro on the same machine. 

It is indeed a QuickTime component for Mac. Unfortunately, I do not know a solution for Windows environment.

I have this problem with most any file I try to encode into a .flv or .mp4 - NO AUDIO!

Stop blaming all the users and their machines and fix your software.

LOL the media encoder that can't ecode anything.

My workaround was to re-transcode everything using Roxio Toast Titanium.

I have a Mac and I had the same problem. I figured it out, with a little help from above. I found the Adobe Common File. I then went in the cache folders. I deleted all the caches from the dates that my files were originally encoded. Then, I reimported them. When they were remimported the sound showed in all my audio clips, including the short piece that had been missing. I'm going to guess that something interupted the importation of the files the first time and then since they were in the cache, reimporting them didn't solve my problem. Since they played fine in VLC, I knew it wasn't the file.

If you are using a Mac, screennamean, you will find those files here:  Your mac user name, Library folder, Application Support Folder, Adobe Folder, Common Folder. In the common folder, there are two cache folders. The Media Cache file folder holds the cache for the files that you have imported into Premier Elements. Find the file that you have a problem with and delete it. I also deleted the files with the same date that were in the Media Cache file that have unintelligible names.

Confirmed I just used it and it worked first time no problem.  Using premiere pro to convert to YouTube!  I don't take credit for the resolve, it was on YouTube already how to fix this.