Transcoding XDCAM from stereo to dual mono

I'm actually using Compressor at the moment, but am trying to convert HDV clips shot in stereo into XDCAM HD clips that will support write-back to my PDW-U1. But the U1 only supports "dual mono" audio, not stereo. I'm looking at the audio tab in my Compressor settings, and don't see such an option. I'm currently running tests, but has anyone found a way to create supported audio for write-back to XDCAM devices?
Chris.

Panning the audio to the center does not work for me. Once you choose Dual Mono, a single track will be either left or right depending on which track it's on. I worked around this by making a new sequence with "Dual Mono" as the audio output. I then dragged the original HDV sequence into that timeline and my single channel-1 audio channel now comes from both speakers. But it's not stereo. Its Dual Mono. I wrestled with this into the wee hours and this was the only work around I could find to output a show to XDCAM without the audio being messed up.
Somebody needs to seriously get to work on fixing this problem. Many broadcasters are now accepting XDCAM as a submission format. This is great, but it has some serious drawbacks as it sits right now.
Ken

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Captured stereo convert into Dual Mono

Hi all,
Some of the footage I have to work with is captured as DV with stereo audio tracks.
That's not so nice, because the audio is actual 2 mono channels (2 different mics on interviews)
I know I can switch off the stereo pair in the timeline. But that's tedious. I need to alter everyclip everytime I drop it in the timeline. Also I cannot Unpair the clip in the viewer, while I do need that because I want to lower the level of only one channel during chosing the quotes (because of wind in 1 mic for instance).
So it would be nice to be able to alter the master clips in the browser from stereopair to dual mono.
But I canot figure out how. Can this be done in FCP?
Can this be done in Quicktime.
Any ideas.
thanks
Rienk
NB (I know how to set up dual mono in Log and Capture. It's just that 10 tapes, that someone else did capture in stereo, and I need to work with)

UODATE:
Just opened one of the good clips (captured as DUAL Mono) in Quicktime. Then I see 2 seperate soundtracks. Sondtrack 1 with one ch1 set to MONO and Soundtrack 2 with one ch1 also set to MONO. It that way it differs from the two channels in the one Soundtrack 1 in the clips that were captured as Stereo.
Export the original masterclip from FCP with Export using QT conversion. and set it to export 2 discrete channels will indeed create a file with 2 Mono cannels. And they import as such. "2 Mono" it says.
Reconnecting the master clip to the newly created Dual Mono clip let FCP still think this is a stereoclip (As Andy pointed out, this is indeed not working)
Reconnecting the sequence clips to the newly created Dual Mono clip seems to work. But when I do match frame, then there comes again a stereo-version of the clip in my viewer. (also of course this is because it is looking to the original masterclip that we cannot change in FCP, as we saw in the previous sentence).
So I found a way to create new Dual Mono masterclips, but still I'm not able to alter the originals to the sequence clips.
The building will close here. So have to leave.
But I will try if I can change the settings of the masterclips from within an XML...
OR the solution would be in QT to split the two channels in two soundtracks in Quicktime... But how?
Rienk
Message was edited by: Rienk

How do I import stereo audio as pan centered, "Dual Mono?"

Greetings,
For most of my video recording, I’m running two wireless mics and am recording in stereo.
90% of the time, I’m working with one track or the other and, because I’m cutting for broadcast news, the pan for the audio needs to be centered.
Is there a way to import the audio I recorded in stereo as Dual Mono with the pan for each channel center?
It’s a pain to have to go through each clip and make it Dual Mono and then chose Pan Mod Default to center it.
I bring in my video as indiviaual clips so I can’t select a single clip in the Event Panel and make my changes for the whole project.
Regards,
Steve

Select the clips in the event, and set the audio as [Dual] Mono!
There is, as I remember, no option for this during import - but you can select multiple clips and set it on all at once.

Convert dual mono tracks to stereo in Audition CC

How do I convert dual mono tracks to stereo in Audition CC please?

Sorry, but your intentions here aren't clear.
Do you have two mono signals on one stereo track, or are you talking about two separate mono tracks that should be stereo, and you want them as a single stereo track?
With the latter, open one file and copy it to the clipboard. Open the other file, and use Edit>Convert Sample Type to convert it to 'stereo' (really dual mono). Select just the side you want to replace, highlight it and hit Delete - this should leave your original file on one channel, and nothing on the other. Place the cursor at the start of the empty section and paste the clipboard contents here. Save the result. You now have a stereo file.
If you have a dual mono file and you want some stereo ambience on it, then have a look at SHEPPi. This does a remarkably good job of that on mono files!
There are several other ways of doing file combining - you could do it quite easily in Multitrack mode, and there are also some utilities around that will do it directly for you - although you could easily be forgiven for being completely unaware of them, because generally they are used for reorganising multi-channel Broadcast Wav files, and don't show up using a simple search term.

HT4589 How do I change the audio to dual mono from stereo when using Share to DVD in Final Cut 10.1?

How do I switch the audio to Dual Mono from Stereo when using Share in Final Cut Pro 10.1? Even though the audio is all in dual mono in the timeline, it lists it as stereo in the share box.

Hi rationale1,
Welcome to the Support Communities!
The share to DVD settings in Final Cut Pro X use the Dolby Digital settings which are stereo for DVDs. So this can’t be done directly in Final Cut Pro X.
The link below will explain the Dolby Digital parameters and options in Compressor 4. You may need to research a different DVD authoring software to achieve your desired result.
Dolby Digital - Compressor 4 User Manual
http://help.apple.com/compressor/mac/4.1/#cpsrb71736a2
Dolby Digital
The built-in Dolby Digital settings (in the Create Blu-ray and Create DVD destinations, as well as the built-in AC-3 and EC-3 audio settings) use the Dolby Digital transcoding format. This format encodes Dolby Digital (AC-3) and Dolby Digital Plus (EC-3) audio files that contain multiple audio channels, including 5.1 surround sound. You can also create custom settings that use the Dolby Digital transcoding format.
Note: All files intended for video and audio DVD authoring must have a 48 kHz sample rate as required by the DVD specification.
DVD Video: Choose this option if you’re encoding for use in a DVD video authoring application.
DVD Audio: Choose this option if you’re encoding for use in a DVD audio authoring application.
Tip: For stereo encoding, rates of 192 kbps and 224 kbps are typical and will produce good results. For Dolby Digital 5.1 encoding, a rate of 384 kbps is recommended. For 5.1 Dolby Digital Plus encoding, a rate of 192 kbps is recommended.
Cheers,
Judy

Can Compressor downmix from stereo (dual mono) to mono?

Seemingly simple question - when compressing DV/AIFFs to web H.264/AACs, is there a way to downmix from stereo(dual mono) to mono without boosting the level?
I don't care if it just uses the left channel, the right channel, or mixes both together - I just want it not to clip 0dB when it comes out mono. Is there a way to do this in Compressor?
(NOTE: without using the Peak Limiter filter to lower the level, which always seems to cause the job to fail)

I've been editing NLE for over 15 years and have never once used a "mono" track, never felt a need to, and Premiere tracks default to stereo normally, which matches my sources. All delivery is typically stereo anyway, so in the case you have with wanting to use just one mic, the Fill Left or Fill Right works perfectly to "Pan Center" so to speak. Hopefully this will suit your needs. Maybe I have tunnel vision and am not understanding how a mono track is uniquely useful, but always open to learning new things.
In the situation where I might need to switch mic sources from time to time within the same stereo clip, for instance a wedding with a shotgun and wireless lav, I just use the Razor to put cuts in the audio clip where I want to switch. I just alternate applying Fill Left or Fill Right to each cut segment as needed, and throw in an audio crossfade at the cut point for a smooth transition.
If I need to MIX the left and right channels in varying degrees of volume, I will duplicate the stereo track and apply Fill Left to one and Fill Right on the other and this has the same effect as two mono tracks, each centered. There's certainly many ways to accomplish the same thing with almost any aspect of editing and that's just how I do it, not wrong or right really.
Thanks
Jeff Pulera
Safe Harbor Computers

Can Compressor downmix from stereo to mono?

Seemingly simple question - when compressing DV/AIFFs to web H.264/AACs, is there a way to downmix from stereo(dual mono) to mono without boosting the level?
I don't care if it just uses the left channel, the right channel, or mixes both together - I just want it not to clip 0dB when it comes out mono. Is there a way to do this in Compressor?
(NOTE: without using the Peak Limiter filter to lower the level, which always seems to cause the job to fail)

First you have to split up the interleaved stereo file->in the Audio bin select "copy/convert" (or hit control+c) in the menue select "Interleaved->split" and tick the box "add to Audio bin"
Now switch Audio track 1 to "Left" at the very bottom of the channel strip->long click into the stereo symbol->menue opens->select "left"
Do the same on Audio track 2 in this case choosing "right" at the bottom of the channelstrip
Now select the reimported split stereo file in the bin and split it up into two seperate files in the edit menue->"split selected Split-Stereo-file"
You now have created two independendent files for left and right and can drag those onto your Audio tracks 1/2 in the Arrange - of course you need to pan track 1 to the left and track 2 to the right to retrieve your original stereo image

Why Does FCE capture DV audio as dual mono instead of stereo?

FCE captures DV audio as dual mono audio files instead of a single stereo audio file. You can see this if you "Show Movie Properties" in Quicktime. Files I captured in Premiere 6 years ago have a single stereo file. The problem is that the new dual mono format for DV won't play on the Final Cut Pro 3.04 installed on my wife's G4 (OS 10.4.11, Quicktime 7.6.2). FCP 3.04 doesn't see any audio for these dual mono files though it will play the video. It won't even create an audio waveform. But FCP 3.04 plays the older stereo audio clips captured in Premiere just fine. And if I export the dual mono files out of QT as a stereo file, then FCP 3.04 will play them just fine.
This lack of backward compatibility is quite frustrating. I can't seem to find a setting in FCE that will capture audio as a single stereo file. Why isn't NTSC DV always stereo? I guess maybe they had to go dual mono to facilitate surround sound panning in 5:1 or something. If nobody knows how to do this in FCE, I guess I'll just capture in FCP 3.04. I spent the better part of a day figuring out this hidden little tidbit. The lesson is don't try to go back!! We must always accelerate forward into newer versions and formats.

The problem is in your wife's machine. She is using a version of the OS and QuickTime that are much too new for the version of the software she's using. She really not not be using an OS newer than 10.4.10 and QT should 7.2 or earlier.
Yes. I was beginning to suspect that this was at the root cause of my issue. Thanks for the info. Frankly, my wife needs to buy a new Intel iMac so we'll both be able to work on the video I'm dumping. I had FCP 3 lying around from years ago and it's the only thing that might have worked on her old G4 AGP, so I thought I'd give it a try.

Dual Mono Audio Mysteriously Changes to Stereo When Match Framed - Why????

Hello everyone,
I am having a very unusual problem with the audio on my project, which I'm working on in FCP 5.1.2. All of the audio was captured as dual mono (channel 1 + channel 2), and yet when I match frame the audio clip from the sequence it shows up in the viewer as stereo, panned to -1. When I double-check the source clip in the bin, it is dual mono panned to 0, as it should be. Also, the clips mysteriously seem to pan -1 in the timeline occasionally, even on sections that were verified as being correct in timeline previously.
Does anyone have any idea why this is happening, and any solutions?
Thank you so much,
mynaah

mmmm this is an odd one... the only thing I can think of is that you are changing these clips once they're in the timeline. It's done with a keyboard shortcut: option+L... it will change a dual mono track to a stereo pair. You can change these files back though... typing opt+l toggles the condition back and forth.
Jerry

Convert Dual Mono to Stereo in Timeline?

I don't think there's a solution for this, but I'll ask anyway.
I'm in Premiere Pro CC.
Due, I believe, to the way FCP xml is read, any project I import from FCP, and any sequence I send to PluralEyes and back, has all stereo audio clips split into dual mono. The clips are still linked, are designated L and R, and play back correctly, but it's an organizational pain in the *** to deal with when all of my other clips are correctly in stereo.
Is there any way I can relink/combine/merge the split audio back into a single track? This seems like it would be an easy feature to add, so I don't see why it wouldn't.
Merge Clips and Nest are both greyed out. Under Audio Channels, I can only change the source channels; Channel Format is greyed out.
Thanks.

I've found to way to do this myself.

Combining dual mono tracks into single stereo

I may be brain dead about this and since I have been recording a client all day--a non-pro doing a VO--I am. I may not be using the search function very well either here or in the manual.
I am working on a 27 minute film segment in Logic exported from FCP using the XML function. Mostly that has gone well but is by no means plug and play. It is very cool to have the project based in Logic and be able to do all my audio and music in one environment to HD picture.
My quandary is this: I would like all of my dual mono tracks from FCP to appear as a single stereo track in LP8. Is it possible to "collapse" two tracks into one with out exporting, reimporting them and then re-syncing possibly?
This is a confusing project and the more I can simplify my organization the easier my life will be.
Thanks, eab

One easy way to treat the two mono tracks as one for editing a so forth would perhaps be to assign them both to the same Group. That way all edits, automation and such will be applied to both tracks.
/juhani

FCPX Dual Mono vs Stereo question

Hi everybody - I've been busy but recently on the Zumiez show I came out of it with a question:
I like to route each of my AJA KiPro ISO records two separate channels of audio, I send a line-feed to CH. 1 (left) and I run a NAT mic feed to CH.2, (right). If I bring the captures into FCPX, for example to create short lifts, I want the producer to be able to choose between the line feed or the ambient mic, so I leave them as "Stereo", but it isn't really a stereo track. I needed to adjust the levels, raise the line level and lower the mic level, but I can't do that unless I designate "Dual Mono". When I designate Dual Mono, I can adjust the levels seperately and even apply filters indivisually, but then the channels are summed mono.
How do you keep stereo seperation on two individual tracks and still be able to make individual adjustments? Or maybe another way to the same goal; can I set hard pans on a pair of Dual Mono tracks?
Thanks for any help! -Stephen

Hi everybody - I've been busy but recently on the Zumiez show I came out of it with a question:
I like to route each of my AJA KiPro ISO records two separate channels of audio, I send a line-feed to CH. 1 (left) and I run a NAT mic feed to CH.2, (right). If I bring the captures into FCPX, for example to create short lifts, I want the producer to be able to choose between the line feed or the ambient mic, so I leave them as "Stereo", but it isn't really a stereo track. I needed to adjust the levels, raise the line level and lower the mic level, but I can't do that unless I designate "Dual Mono". When I designate Dual Mono, I can adjust the levels seperately and even apply filters indivisually, but then the channels are summed mono.
How do you keep stereo seperation on two individual tracks and still be able to make individual adjustments? Or maybe another way to the same goal; can I set hard pans on a pair of Dual Mono tracks?
Thanks for any help! -Stephen

Switching from stereo to mono...

is there a way i can switch from stereo to mono for recording volcals in garageband?if so...how??thanx much

In the Track Info window where you select your instrument or preset, you can also select the channel through which you record - either one channel (mono) or two (stereo). Set it to one channel.

Changing Tracks from Stereo to Mono

Hey All,
I have a bunch of tracks I want to make a project out of, some are stereo and some are mono, I decided to go with mono, anyway to change the stereo tracks to mono in GarageBand or in a 3rd party app?
- Thanks Zach

Right, we don't have to start fighting about words. What I wanted to say is that audio editing is just a minor part of what GB does, and in order to keep it simple and easy to use for beginners, they kept the audio editing capabilities to a minimum (Logic, which is based on the same engine, can do a lot more). So if you only want to do audio editing, it makes sense to use a simple audio editor with all its strengths. The comparison to text editors is not bad: Word is a word processor and document production tool, and editing text is just a small part of it. So people who really want only an editor (e.g. programmers) don't use Word for their purpose but things like BBEdit that gives them more options for the pure editing part.
But you're correct, we're straying away from the topic, and I'm glad you sorted your problem out!

How can I switch my output audio from stereo to mono?

Hey,
I can only hear out of one ear and I would like to be able to listen to the other half of my music on my headphones, how can I switch my audio from stereo to mono?
Thanks!
Zach

http://www.radioshack.com/product/index.jsp?productId=2102690
http://www.scansound.com/index.php/stereo-to-mono-adapter.html
Or you could buy a mono/one ear headset. http://www.beso.com/2699431644/detail

Transcoding XDCAM from stereo to dual mono

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