I record video with 2 separate audio tracks, but only one shows up

R.R. wrote on 2/5/2019, 12:57 PM

My camera allows for two inputs of audio while I record. So, I use both of them while I am recording. So, I use one for my main shotgun mic audio and the other is for generic background audio. However, when I drop the video in MEP, only one track of audio shows up. I have not seen how to have both tracks showing up on my timeline, am I missing something?

Comments

browj2 wrote on 2/5/2019, 1:12 PM

Hi,

They are probably for stereo, which means 1 track, 2 channels (left and right). First, make sure that you have video and audio on separate tracks, like 1 and 2 (you should have this set by in the Program settings all of the time, IMHO). Ungroup the audio from the video. Duplicate the audio object by holding down Ctrl and dragging downwards to track 3 with the left mouse button to put the duplicate directly below the original. Double-click on the audio object on track 2 to open the Audio cleaning interface. Open the Stereo FX tab and the preset popdown and select Left channel only. OK. Do the same with the audio object on track 3 but set it to right channel only. Now check with the mixer to see if you have each source on separate tracks.

This is much easier in VPX. Right-click on the audio part and select Split stereo objects into mono objects.

John CB

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R.R. wrote on 2/5/2019, 1:32 PM

Hi, No, they are not stereo inputs. The camera has two XLR inputs that are both selectable which allows for an internal mic, line level and well as an external mic used . That is why I stated that one input is used for a shotgun mic and the other is the built in camera mike. I can not find any info if MEP will display both tracks of recorded audio.

johnebaker wrote on 2/5/2019, 1:34 PM

@R.R.

Hi

When a video with 2 or more audio streams is imported into Movie Edit Pro it does not separate 2 streams of audio and automatically sets stream 1 as the default that you hear.

See this video for a workaround - note it is for an earlier version of Movie Edit Pro, however the principles are the same for some earlier versions and all later versions.

Note: in the video the narrator describes the streams as channels this is not the correct term - channels refer to the discrete paths for speaker allocation eg Stereo is 2 channel - left and right, however the 2 channels are in 1 stream.

HTH

John EB

 

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R.R. wrote on 2/5/2019, 1:44 PM

Ok, thanks, nothing simple. I will keep this in mind, may have to check out the Vegas line from Magix to see if they work. Again, thanks

 

johnebaker wrote on 2/5/2019, 2:38 PM

@R.R.

Hi

. . . Vegas line from Magix to see if they work . . . .

Check out Magix's Video Pro X (MEP's big brother), it does support separating out the individual streams and will be less of a learning curve than Vegas Pro as you are already familiar with Movie Edit Pro.

HTH

John EB

 

Lateral thinking can get things done!

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R.R. wrote on 2/6/2019, 10:21 AM

Hi...Thanks everyone.... I found out how to do it. For anyone else that would like to know, you can contact me but here is a quick explanation. Put your video that has both tracks on your timeline. Ungroup it and you end up with a video and audio track. Copy the audio track and paste it on another line in the timeline. So, now you have 1 video and 2 audio tracks. At this point, go to your mixer, and use your pan controls on the audio, pan one left and the other right. Now you can hear both tracks separately. Here is a link to a YouTube video that I posted on it.

 

browj2 wrote on 2/6/2019, 10:41 AM

@R.R.

Hi,

Glad to see that you've got it sorted out.

Essentially, what I told you is the same but no need to pan; you get the left channel on one track and the right channel on another. It turns that you did not have multi-audio tracks, only one track with stereo left and right channels.

You should set video and audio to be on separate tracks - always. As I mentioned,this is done by changing the parameter in the Program Settings.

John CB

 

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johnebaker wrote on 2/6/2019, 12:04 PM

@R.R.

Hi

. . . . they are not stereo inputs. The camera has two XLR inputs that are both selectable which allows for an internal mic, line level and well as an external mic used . That is why I stated that one input is used for a shotgun mic and the other is the built in camera mike. . . . .

They may be separate inputs, however your video of the proposed fix, indicates that you have one audio stream with the left channel recording from one XLR socket and the right channel from the other socket.

Attribution for the solution has been moved to John CB's answer above.

John EB

Forum Moderator

Last changed by johnebaker on 2/6/2019, 12:08 PM, changed a total of 2 times.

Lateral thinking can get things done!

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R.R. wrote on 2/6/2019, 12:59 PM

Forum Moderator

I must disagree with your decision. Since my solution is different, does not mean it is incorrect. In my opinion, my method is easier to do than having to do all those extra clicks that John CB mentions...

"Double-click on the audio object on track 2 to open the Audio cleaning interface. Open the Stereo FX tab and the preset popdown and select Left channel only. OK. Do the same with the audio object on track 3 but set it to right channel only.."

Nothing wrong with John CB's answer, just more things to do as you have to open other windows and such, my solution is to just adjust the pan controls on your audio mixer... it is right there as you are watching your levels, easy. So, I stand with my opinion that this is the solution the worked for me... that is why I posted it as a solution.

 

 

emmrecs wrote on 2/6/2019, 1:41 PM

Attribution for the solution has been moved to John CB's answer above

And has now been returned to John CB's answer!

@R.R.

You have the right to disagree with John EB's decision, but his moving of the solution tick to John CB's answer was wholly correct and so has been restored.

Just as a matter of interest, you say the twin XLR inputs on your camera are not stereo. Perhaps so given the way you chose to use them; the audio you have is not truly "stereo", but that is entirely because you used them as two independent mono audio recordings. However, I very strongly suspect the camera's manufacturer is likely to refer to them as "stereo inputs". As John EB wholly correctly says, the fact that you were able to separate the two audio streams simply by hard panning of the two channels means your audio track was a stereo track

Jeff
Forum Moderator

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R.R. wrote on 2/6/2019, 3:04 PM

OK. I feel that the subject has turned into the definition of stereo inputs on the camera and what is a stereo track as opposed to the question that I asked of "How to get the two audio tracks onto the Magix Pro Timeline." Jeff, even you keep talking about the stereo and mono inputs which is a really a mute point to the basic question I asked. At the end of the day, you can record two separate audio tracks while you are recording video and then, using either method, one harder than the one I suggest, since BOTH methods work.. get both tracks separately onto the timeline so you can work on them. Since I believe in the rule of KISS...Keep It Simple Stupid, I feel that the way I suggested would be more appealing to the masses so I feel that should be marked as the solution, but, you are the boss.

Thank you all,

CubeAce wrote on 2/6/2019, 3:10 PM

Technically speaking, inputs are referred to as channels and only output groupings are given designations such as stereo. In the past and present, there have been other ways to use two channels other than to represent a left to right soundstage. Early use was to put effects or music on one track and have the other for dialogue and still give a monophonic output. Later, with the use of matched microphone Blumlein pairs, (normally ribbon mics because of their figure of eight pickup pattern) the first use of a stereo soundstage as we know it came to being, and eventually, other methods using matched pairs of microphones were employed. Then with the eventual use of the multi-track desk, which had the use of two, or many more output groupings.

Then there is binaural recording which can give complete surround sound experiences and really can't be described accurately as stereo despite only using two channels.

While any manufactures will use the term stereo to simplify with conformity with the general public view of the use of two audible channels to the output of their devices, technically it's wrong.

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browj2 wrote on 2/6/2019, 3:39 PM

Back to KISS.

@R.R.

Actually, it's more complicated than just my solution. Your solution only allows you to hear each channel separately. If you now export (in stereo) you will get 100% of the sound from your mic coming out of one speaker, 100% of your background coming out of the other speaker. Normally, that is not what one wants.

You have to isolate each channel to a track. Now you use panning for balancing how much sound from that track goes to each speaker.

The next problem will be with any effects or cleaning that you may need to do for one input or the other. I haven't tried what happens if I edit each object done your way in an external editor like Music Editor 3 (which you have). I suspect that I woke have to remove or mute the unwanted channel and switch to mono before exiting. I will try when I get home.

Have you used ME3 or do you use another external editor?

Bottom line, you have to isolate each input to objects on separate tracks. Panning each to simulate this is not a good solution.

John CB

John C.B.

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johnebaker wrote on 2/6/2019, 3:57 PM

@R.R.

. . . . keep talking about the stereo and mono inputs which is a really a mute point to the basic question I asked . . . .

Unfortunately it is not a mute point - it is the central crux of the issue you were having.

The fact that your camera has 2 XLR connectors means that each is intended for microphone input. As most microphones are are mono devices, you have 2 connectors on the camera in order to record in stereo.

. . . . you can record two separate audio tracks while you are recording video . . .

The audio you recorded is 2 channels, as your video clearly shows, each containing a mono signal, which are multiplexed together to give a single audio stream (track if you prefer) - this is a stereo signal for the decoder to demultiplex (separate back out) to 2 discrete channels.

Terminology is an important part of asking a question, if the incorrect terms are used, the replies you get are likely to be the wrong solution as you can see by the first reply I gave.

John EB

Forum Moderator

 

 

 

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R.R. wrote on 2/6/2019, 4:32 PM

Again, thank you all for you input...

Scenestealer wrote on 2/7/2019, 5:17 AM

@johnebaker

automatically sets stream 1 as the default that you hear.

I presume this is why the right click menu gives you a choice as to which stream you hear? I got a bit confused because I could not get that choice to show up by manipulating the channels in Audio cleaning > Stereo FX....

@R.R.

So I presume your exercise was to clean or process each stream but how did you mix it back to a stereo output with both streams coming from both speakers?

For speed I think John CB's method of Ungroup > Ctrl+Drag down the audio to duplicate, as opposed to Copy and paste, is simpler.

Peter

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johnebaker wrote on 2/7/2019, 6:15 AM

@Scenestealer

Hi Peter

. . .. I presume this is why the right click menu gives you a choice as to which stream you hear . . .

That is correct, here is an example of the options for a video clip that has 3 streams of audio.

. . . . could not get that choice to show up by manipulating the channels in Audio cleaning > Stereo FX . . . .

AFAICS audio cleaning only works for the selected audio stream in the timeline.

If you load a multi audio stream clip into VPX, Right click, Extract audio tracks, the audio streams are separated to the required number of individual tracks on the timeline below the video without the need for duplication and switching streams - if using proxies you do have to restore the original audio first.

HTH

John EB

Lateral thinking can get things done!

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browj2 wrote on 2/7/2019, 8:59 AM

@johnebaker

Thanks for posting the screen shot. I don't have any multi-track audio videos, so I've never seen feature.

@R.R.

We forgot to mention one important point, I think. Once the streams are split, regroup the audio objects with the video.

John CB

John C.B.

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Scenestealer wrote on 2/7/2019, 4:22 PM

Hi John EB

If you load a multi audio stream clip into VPX, Right click, Extract audio tracks, the audio streams are separated to the required number of individual tracks on the timeline..

Is that basically doing the same thing as the Surround sound > Extract Audio tracks.....and as MEP can do the same for 5.1 could it also do the same there for the mono tracks?

Also do the tracks become Mono or stereo?

I had not seen the choose stream option, like John CB until I saw your embedded video, as I do not have material that is recorded as such.

Interesting!

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johnebaker wrote on 2/8/2019, 6:41 AM

@Scenestealer

Hi Peter

. . . . Also do the tracks become Mono or stereo? . . . .

The individual streams can be mono, stereo or surround sound depending an how and what they were recorded with and embedded.

John EB

Lateral thinking can get things done!

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Brian-Knoblock wrote on 9/18/2019, 4:10 PM

Either of these solutions will work but the only problem is that by copying the channel you also copy the waveform display. If you are doing an interview with two subjects and each is on a separate channel the waveforms will be different - a lot of waveform when one is talking and not much when they are listening. If the program generated two separate channels - like, for example Adobe Premiere Pro - then you would have two distinct audio signals each with their own waveform which would make it much easier to make adjustments.

emmrecs wrote on 9/19/2019, 4:16 AM

@Brian-Knoblock

Welcome to the Magix forums.

I am not entirely sure why you have posted your comment to this thread when the original question was answered, and the problem resolved, several months ago?

To attempt to draw comparisons between Magix Movie Edit Pro and Adobe Premier Pro seems somewhat invidious; the former is designed as a quite comprehensive "consumer" video editor, the former as a tool for "professional" use, with price differences to at least match their different target users. As explained in the thread, the facility the original poster wanted was not easily available in MEP but is offered in the program that is, arguably, Magix' answer to Adobe's PP, i.e. Video Pro X.

Speaking personally, as someone who carries out quite a lot of audio editing, I much prefer "seeing" the entire "stereo" waveform on one "track". I realise the apparent advantages of two separate and distinct waveform views but ensuring that any edit made to one of them is reflected in the other (so as to maintain synchronicity) seems rather laborious.

Since the original question was fully answered, and to prevent spurious discussion of which approach is "better", this thread will now be closed.

Jeff
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