Missing audio channels on export

I have this weird problem. I want to render my Premiere CC (v7.2.1) project to an .mp4 file. But some audio channels are not audible in the export. They are audible when I preview the timeline, but gone after export. Some audio channels are present, but others are not.
This is a huge problem for me, since I need to finish this project. The problem appears to have started after I moved the project files over to other storage.
Any clues?

@shooternz
Thanks for you suggestions.
I've tried creating a new sequence and copy the other sequence into it: no luck.
I've deleted the cache and render files: this worked! The audio is now back.
Thanks for you help!

Similar Messages

Missing Audio Channel, X

Hi Folks, having some trouble with my x-fi extreme gamer.
I cant get any sound out of my front right speaker, every other channel seems fine but that one is dead. I've tried it with a set of 5. speakers and also with a set of Medusa 5. headphones through an amplifier, always missing front right channel.
I have tried using several sets of cable, I've uninstalled the drivers, used Drivercleaner pro, reinstalled the drivers but no joy. I've had the case open, taken out the card, cleaned the card and pci slot with compressed air and reseated it. Nothing seems to enable that missing channel. Any advice would be appreciated.

Same problem, with my X-Fi gamer, and Logitech 5. speakers since a recent patch, right speaker intermintantly goes on and off in the middle of gaming and watching videos/music. It is not a wiring issue/problem with speakers, and not a mixer issue. Other than that no clue was to what it could be other that a recent change to drivers. (maybe a windows update or something recently?)Message Edited by danomite2k4 on -07-2008 0:5 PM

Missing one audio channel from MXF video

Greetings,
I have a bunch of footage shot with a Canon XF300 camera. Two wireless lav mics were feeding into the camera. On the day, I was monitoring audio and am 100% certain that it was recorded correctly. I found a couple of unerased CF cards from the shoot and was able to verify that the audio is good when I pop the CF card into the camera.
However, when I transfer the footage to hard disk and attempt to play it out using either Premier Pro CS5, or VLC, I'm losing channel one of the audio. I've been attempting to troubleshoot, and have found a couple of references on the Web regarding missing audio channel 1 from MXF video files -- but nothing that is relevant to this situation.
I'm on Mac OS X 10.6.6 and am running Premiere Pro CS5 5.0.3. No video cards.
I've tried bringing the files in using: Finder, XF Utility and ShotPutPro. I'm copying the complete directory structure in all cases.
Has anyone seen this problem before? Any troubleshooting thoughts?
Thanks,
Cameron

It turns out that the MXF files are coming in with 2 mono audio tracks, and for some reason, in the clip viewer, one of the audio tracks doesn't play, but if you move the clip to the timeline, both audio channels can be heard. Ran into the same issue with Cineform encoded material coming in with two mono audio tracks. So I'm going to file a bug report.
Ah, OK... now I understand. No need to file a bug report; maybe a feature request, but a bug report isn't necessary. Here's why:
When you bring in clips with mono channels, by default, you only hear the first mono channel when playing back in the Source Monitor. If you toggle over to Audio Waveform view (click the Output button), you can select which of the channels (called "Tracks" which is a little silly, frankly) you want to monitor. Here's what this looks like:
This applies to any format that has mono channels. If you interpret the footage to stereo (you must do this before you use it in a sequence), you can listen to both channels at once. Of course, then you have to deal with the audio as stereo, which is not always what you want. That's why I do a lot of my editing with MXF material (primarily P2) that has multiple mic sources in a sequence, where I can monitor more than one source channel.
In any event, that's why this isn't really a bug; it might be a poor design decision, but it's otherwise working correctly. I'd definitely suggest making a feature request for a "Mixed" or "Plus" audio source option in the Source Monitor. I'm going to do the same.
Anyway, I hope that helps explain the issue. Good luck!

Silent Audio Channels in Compressed Output Files ...

Has anyone experienced dead silent audio channels in exported MP3 or Podcast/AAC files?
This is included in the application release notes:
Exporting to Compressed Formats
" If you export to compressed formats (MP3 or AAC) using devices that do not use class-compliant Core Audio drivers built into Mac OS X on Intel-based Macintosh computers, the audio track of the exported file may be silent. To avoid this issue, use the Audio MIDI Setup utility to change your default output audio device to Built-in or to a device that uses the class-compliant Core Audio drivers before exporting files."
I'm on a Dual PPC G5, and my Motu interface is compliant. All exported compressed files [with or without video in AAC exports] have silent audio channels.
Any news on this?
-ptfigg.
Power Mac G5 Dual 2.0 gHz
Power Mac G5 Dual 2.0 gHz

All the pods are set to master. I've never set any sub-mix tracks in the
past, and, yes, these are set to zero (but I didn't do it). I set the submix
to 3 for each Stereo & Mono in project settings, default sequence.
Made no difference.
Original audio is standard from a Sony professional camera. Same
camera I've used on a number of occasions.
What baffles me is that I just don't understand the error message
language. In other words: what is it saying?
Cheers,
Bill in Toronto
Date sent:     Thu, 20 May 2010 10:37:47 -0600
From:     Bill Hunt <[email protected]>
Send reply to:     [email protected]
To:     William McQueen <[email protected]>
Subject:      CS3 Error Message The number of audio channels in
     the output need....
OK, the Master is Stereo, and you have 3 Mono Tracks, that should
mix-down to that Stereo Master, which will not be a problem.
Now, it appears that you have no Sub-mix Tracks. Is that correct?
Check to see what the Track Mapping is set to for each of those Mono
Tracks. They should be set to Master.
Having the Track Mapping set improperly could possibly result in this
type of issue, as DVD's can only have a limited number of Audio
streams and these are well-defined.
Maybe someone else will have more ideas for you.
Good luck,
Hunt
PS - as a note, one cannot use ADL to Encore, if the Master is DD 5.1
SS, as that must go through the Minnetonka Audio SurCode DD 5.1 SS
encoder plug-in to get a DD 5.1 SS AC3. That does not seem to be
your case though.

Can't export audio channel

Hi everyone,
I have this big and long project (1h30) I'm trying to export and it takes a while to do it (4-5h).
I tried couple format and I finally exported it with MPEG -> HDTV 720.
Problem the audio channel is missing. as it's really long to export it again, I tried to export only the audio part but I always get the error "Error commpiling move. Unknow error".
Expert if I'm exporting with aac format but this gives me a really ugly kinda noise.
I tried with only the 2 1st minutes of the movie and it exported well.
Any suggestion? Please this is kinda of urgent!
I'm using PE 10
Thanks!

With "Error compiling movie," I would start with the links in this Tips & Tricks article: Got "Error Compiling Movie?" This Might Help
Good luck,
Hunt

**Missing Audio when Exporting to HD**

Hi,
I have been trying to find a solution to missing audio for sometime and there are many discussions on this forum regarding this topic. I have an external drive and in the past I have lost audio, I guess because the event and the project were on different drives, I have resolved that. Also, the problem that I have is not related to the speed of a clip or that I have more than 10GB in my events (I don't). There have been other audio issues and I have always been able to resolve them but this one has me stumped! I thought that perhaps the graphics card was not up to the task but this has just happened and now I am confused.
I have just completed a project that was only 3 minutes long 403.5 MB. The movie was imported to iMovie from my video camera and listed as an Event, I also used movie clips and stills from iPhoto, I added titles and transitions. I then exported the movie to Media Browser (mobile size) so that I could import it into Garage Band to make an soundtrack. I then exported the soundtrack as an AAC to iTunes (as I have read that there are issues with MP3 and audio missing). I then opened iMovie and dragged the soundtrack into my project and republished the completed project to Media Browser in the HD size. No problem all works well, I was really happy! Onwards I thought and get another 2010 video finished, wrong!
On my next project I have done everything that I have described above, this time the project is only 349.8 MB (smaller). The audio on the HD size has failed. I have copied all the files onto my desktop and reimported everything. I have tried exporting using Quicktime or as a Movie but still no audio. I have found that the 'consolidate media' is grayed out when I have all my clips in the project editor, because they are all on my hard drive. As soon as I add the iTunes track that I have exported from Garageband the consolidate media option becomes available. If I select this I then get the message that the iTunes track cannot be copied as it is not on my hard drive! It is on my hard drive (I disconnected all external drives so that there would be no confusion!).
I cannot understand how the first project worked and the second smaller project failed using the same process! I thought that I would share this information with the forum in the hope that perhaps a solution can be found. I am able to publish the second project to my mobile me in the large and mobile sizes, it would be good to have the HD size for a DVD. There seems to be no logical pattern to the audio disappearing on export. Your thoughts or help would be very welcome.
Kind regards,
Watchthebat.

In Soundtrack if you have selected to use only channel 2 of a stereo file (right click on stereo file and select mono->channel2) you will hear channel 1 when you export. Its a massive bug.
Could that be the source of your problems? The bug can certainly create exported mixes that sound like stuff is missing.
There's a recent thread around here about this.

Exported file sounds different inside Audition CS6 - audio channel mapping problem?

Hi guys. I've been working on some voice reels today, and for some reason my finished and exported files sound different to how they sound in Audition - basically, the music tracks increase in volume whenever the voice actor isn't speaking. As mentioned, this isn't happening in the Multitrack session, just when playing back the exported track in a third-party app, and has only been happening today. I've tried messing around with the Audio Channel Mapping and Audio Hardware settings in the Preferences, without any joy. I'm suspecting something's got messed up on the sound card, but just wanted to check that I haven't missed something painfully obvious inside of Audition!
Specs:
Windows 7 Home Premium, SP1, 64-bit
AMD Phenom II X64 2.8 GHz, 8GB RAM
Adobe Creative Suite 6 Production Premium
M-Audio Delta Audiophile 2496
NVIDIA GeForce GTX650Ti 2GB

Can't answer that without quite a bit more information about the third-party apps, what exactly you're exporting, workflow, etc. It won't be a mapping issue though - that will only affect the output of Audition to a hardware device.
But if you are exporting a single file with everything on, and it plays okay in Windows Media Player, for instance, then whatever is happening isn't with Audition, but whatever you are putting it back into. It sounds as though some sort of auto-leveling system is at work - and Audition wouldn't do that unless set up very specifically to do so.

How do I export from FCP to a QuickTime file with multiple audio channels?

I'm delivering a project where the first step is to generate an HD Cam SR master, which I will be doing at a post-production lab. They will then do a QC check for me. To generate this HD Cam SR master, they need to me to bring in my 98-minute long movie on a firewire hard drive, in five equal parts -- QuickTime files. From these five QT files, the lab will then be creating an HD Cam SR master that will have...
dialogue on tracks 1 and 2
effects on tracks 3 and 4
music on tracks 5 and 6
MY QUESTION
a) I don't see any way to separate these audio tracks accordingly in the FCP menu for QuickTime export. Does anyone have any experience doing this?
b) And does anyone know the most efficient way to combine timeline audio tracks for this purpose? I have my dialogue sitting on the first FOUR audio tracks, actually. To deliver this film, I'll need to crush these four audio tracks to two, as listed above. I could generate an AIFF file, I suppose, import it back onto the timeline, sync it up, and then re-export along with the visuals to make the final QT file, but this seems like a generation loss.
thanks,
Shanked
PS the movie is made up of footage from a Sony PMW EX1. I used the codec "XDCAM 1080 24p 35mbs VBR" for editing in FCP. I'll either export to QT using this same codec or switch to "Apple ProRes" if my machine can somehow maintain the sync.

The following will answer both your questions a) and b).
Click on your master timeline and press cmd+0 (zero) to bring up Sequence Settings, then click on the Audio Outputs tab on the right. Click on the Outputs option and change it to 6. You can leave them as Stereo pairs.
Now, back on your timeline, you need to make sure all your audio is organised so each track. A1, A2, A3, A4 etc has all the relevant media on it.
Then, on the left of the timeline you see the Destination toggle buttons, then you see the Padlocks to lock tracks, then you have the Toggle Auto Select squares. If you right-click on the Toggle Auto Select squares you bring up a little sub-menu, at the top of this list you'll see Audio Outputs, which will show the stereo channels for that particular track. As you've changed the number of Audio Outputs in the Sequence Settings, the list will show: 1&2, 3&4, 5&6. You just tick whichever channels you want.
In your case, you have dialogue on the first 4 tracks, no problem, just go down through tracks 1,2,3 and 4 as described above and assign these to Audio Outputs 1&2.
Then just go down through your music and effects audio tracks and assign them accordingly.
Now, when you export your timeline as a self-contained media file, it will have different audio channels.
I hope that makes sense. When you change the number of audio outputs as described in the first step, I believe the rest of it is fairly self explanatory, once you know where the settings are.

How do I reduce the number of audio channels in the source or export settings?

I'. trying to export my finished edit through the "movie" setting but keep getting the message that the number of audio channels to create in the exported file must be equal to, or less than the number of channels in the source. Reduce the number of audio channels in the source. Reduce the number of audio channels in the export settings. I am at a loss as to what this means and how I proceed with it prior to putting it to DVD. Please advise.
JWooley

What is your source, sequence settings and export setting. Which version of PP?
Prefebly a screendump of the export settings box.
(e.g. trying to export a mono track to 5.1)

Premiere CS6 - MXF export with 8 channel audio does not export my audio channels correctly

Hey Volks,
when i try to export an mxf file with 8 channel audio, premiere does a kind of main mix in channel 1 and 2 and channel 3 to 8 remain silent. It does not include my assignment of audio channels in the mxf file.
im very thankful for any idea...

Hi Dast Media,
Have you resolve the multi channel export?
I have the same problem...(the export it's ok but i hear only the first two tracks)
i need to export a MXF file with 8 tracks, 6 stereo and 2 mono.
Thank you for help!

Export MXF with multiple audio channels for broadcast

Hi,
I work at a broadcast company as an editor. We always used FCP with the free sony xdcam plugin to export. This plugin seems to be one of the rare ways to export an MXF with 4 audio channels. I don't know exactly why we need to export it for broadcasting with 4 audio channels, but we do.
Since our workload has grown enormously the last few months and it will only become more we are optimizing our workflow. We also work with a lot of different endboards in After Effects and we made a nice template to work with. And since AE and Premiere can make a dynamic link we are considering changing from FCP to Premiere.
Now comes the question!: The only obstacle we could not find an answer to is exporting it with 4 audio channels as an MXF from Premiere CS5. Will there be some development on this level regarding CS6?
A solution to this should save us a lot of time!
Any help will be highly appreciated!
I also attached an example for the usual MXF files we export

I have the same problem. I have a project with multiple audio channels and I want to export them as individual channels in a MXF-file.
Method:
When I created a new sequence I choose "Multichannel" from the "Tracks" page. When I export the MXF OP1a, I choose 8 channels from the "Audio" page. None of the channels are muted.
Result:
The rendered file contains 8 channels, but only the first two channels contains any audio (main left + right), the rest of the channels are empty. Channel 1 and 2 contains the audio from all channels, but I want the channels to be seperated in the same way as they are layered in Premiere.
I don't understand your answer to wleoni75's question. Could you please help me further?

How can I export a Video while keeping separate Audio Channels?

I'm trying to export some AVCHD footage and convert to ProRes. However, I do not want to mix the left and right channels together so that they both end up playing the same audio in the ProRes file. I have audio from one mic on Channel 1 and audio from another mic on Channel 2, and I would like to keep that once the video files is exported. I'm new to Premiere Pro so instead of spending an hour trying to figure it out myself I was hoping someone could help me out.
Thanks,
Mike

Right on. Now, the technical explanation, so you know what's going on:
Your footage imported with dual mono tracks--whether it was recorded that way or mapped that way on import, only you can say. When you dropped it into a sequence (or on the New Item button), the source audio tracks were placed in mono sequence tracks, but the sequence has a stereo master track. When the audio from these tracks is routed from the sequence tracks to the master tracks, since it's mono and by default panned center, it outputs to both output channels equally. By panning the mono tracks hard left and hard right, respectively, you're essentially isolating each of those tracks to a particular output channel.
Had your audio been shot as stereo or if you had remapped the dual mono tracks (right-click the clip in the bin before using it in a sequence and go to Modify > Audio Channels) to function as the two channels of a stereo clip, you could have dropped the clip into a stereo sequence track, and the separation would have maintained (assuming the sequence was using a stereo master track). This is a viable solution, too, but may limit your editing a bit more since instead of two separate mono audio tracks, you're working with one stereo audio track.
Either way will work; experiment to decide which will work best for your workflow.

Always asynchronous audio if I export an MXFop1a file with 8 channel audio from Premiere 2014.1 for delivery to XDCam HD U1 Sony.

I try now for hours to export an MXF op1a with 8 channel audio from Premiere CC2014.1 and with AME 2014.1 to copy the file on my XDCam drive u1 to a disc.
The file is always asynchronous after 20 or 30 minutes. The project is synchronous and also other codecs are synchronous if I export them. So I think it's a bug...
I use the newest Sony XDCam drivers. Also parts with no audio can't be render with intelligent render. If I use this option, Premiere or AME crashes...
I work on a mac system with 10.8.5 OSX.
Does anybody have the same problems or any ideas to solve my problem...
Best regards,
Florian

The following will answer both your questions a) and b).
Click on your master timeline and press cmd+0 (zero) to bring up Sequence Settings, then click on the Audio Outputs tab on the right. Click on the Outputs option and change it to 6. You can leave them as Stereo pairs.
Now, back on your timeline, you need to make sure all your audio is organised so each track. A1, A2, A3, A4 etc has all the relevant media on it.
Then, on the left of the timeline you see the Destination toggle buttons, then you see the Padlocks to lock tracks, then you have the Toggle Auto Select squares. If you right-click on the Toggle Auto Select squares you bring up a little sub-menu, at the top of this list you'll see Audio Outputs, which will show the stereo channels for that particular track. As you've changed the number of Audio Outputs in the Sequence Settings, the list will show: 1&2, 3&4, 5&6. You just tick whichever channels you want.
In your case, you have dialogue on the first 4 tracks, no problem, just go down through tracks 1,2,3 and 4 as described above and assign these to Audio Outputs 1&2.
Then just go down through your music and effects audio tracks and assign them accordingly.
Now, when you export your timeline as a self-contained media file, it will have different audio channels.
I hope that makes sense. When you change the number of audio outputs as described in the first step, I believe the rest of it is fairly self explanatory, once you know where the settings are.

Exporting multiple audio channels from Premiere Pro CS6 in MXF OP1a

I have a Premiere Pro project with multiple audio channels and I want to export them as individual channels in a MXF-file.
Method:
When I created a new sequence I choose "Multichannel" from the "Tracks" page. When I export the MXF OP1a, I choose 8 channels from the "Audio" page. I make sure that none of the channels are muted.
Result:
The rendered file contains 8 channels as I want it to, but only the first two channels contains audio (main left + right), the rest of the channels are empty. Channel 1 and 2 contains the audio from all channels, but I want the channels to be seperated in the same way as they are layered in Premiere.
Any ideas what I can do?
Thank you for your help!

Hey Guys,
I'm having problems exporting an 8 channel audio mxf for a broadcast client. The mix they want is as follows:
Track 01: Full Programme Mix L
Track 02: Full Programme Mix R
Track 03: International Sound L
Track 04: International Sound R
Track 05: Music and Effects L
Track 06: Music and Effects R
Track 07: VO Mono
Track 08: Interview Mono
I have setup the sequence following this video on vimeo and am fairly confident I have the sequence settings correct. https://vimeo.com/38501157
I also can export a multichannel mxf. But all my tracks are exported as mono and I am therefore not maintaining my L and R as set up in my sequence
The problem is on exporting that since Tracks 01 and 02 are bounced down to 1 + 2 it means that my Track 01 (Panned L) is getting bounced down onto my Track 02 aswell and thus it does not remain seperate. Has anyone delivered a similar format for a broadcaster and come across this problem with Premiere Pro and know a solution?
Any help would be much appreciated
Thanks
Eamonn

Premiere 7 - stereo sound exports without one audio channel

Hi there.
I have a strange problem with Adobe Premiere 7.0.
Every time I export a wideo it looses one audio channel - the right one. I have no idea why.
I have a stereo audio file in my Timeline and it plays in stereo during editing.
I choose stereo sound for export, try different codecs and formats but nothing helps. After rendering the movie lacks the right audio channel.
I've double-checked the source audio file in GoldWave - it does have the sound in both channels.
Then I've double-checked the audio from the rendered movie - no right channel.
What might be the source of this problem?
Thank you for you help.
Best regards,
Szymon.

Thank you for your answer A.T.
The screens were from the GoldWave program (similar to Audacity). I've checked the original and rendered versions in Adobre Premiere. The rendered one does not have audio channel.
Source audio: wav, 24 bit PCM, 2 channels, 44100 Hz (but it happens with every audio I've tried).
Project Settings:
HDTV 720p, 25 fps
audio 48000 Hz
Export settings:
MPEG2 PAL 720p 25 fps MainConcept MPEG Video codec
Audio MPEG, MainConcept MPEG Audio codec, MPEG-1, Layer II Audio, Stereo mode, 16 bit, 48 Hz, 384 kbps bitrate
Hardware I'm working on
Lenovo Y550
OS - Windows 7 32 bit
Intel T6600 2,20 Ghz CPU
4GB of RAM
Realtek High Definition Audio
Codecs installed:
CamStudio Lossless Codes v.1.5
K-Lite Codec Pack 9.4.0
Xvix MPEG 4 video Codec
ffdshow audio decoder
Haali Media Splitter

Missing audio channels on export

Similar Messages

Maybe you are looking for