Stereo Tracks

Could someone explain to me why, after so many years of using Logic, all of a sudden-out of the blue- I can no longer switch from mono to stereo on a single track without the adjacent track becoming a slave in a stereo object?
I've always had individual stereo master bus outs, but never had to worry about individual audio tracks....they've always been independent and I could switch in an out of stereo on every audiio track.
Unbelievable.
G5 DP 1.8 Mac OS X (10.4.9) Logic Pro 7.1.1

Bin-go. Thanks Tim. You saved me a bottle of antacid.

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How to capture 2 stereo tracks (4 channels) in Premiere CS6? Thanks!

Problem capturing 2 stereo tracks (4 channels) into Premiere CS6 (on a Mac) from a Canon xls1? Thanks, IndigoJim!

I'm sure I used to get all 4 tracks from my XL1s, If I rememder correctly there was one Avi with a stereo track and a separate wav with the other pair. When in 4 track mode the audio is only 12 bit. The computer I used back then had a Matrox RT100 board, It might have been a Matrox utility that I used for the capture.

Mixing Four Tracks To One Stereo Track

Hi,
In Logic 7.2.3,if I have recorded four backing vocal tracks, all doubled up, and I want them panned across the track, from left to right, is there a way that I can submix them to one stereo track, still keeping their pan positions, so I can apply processing to all of them together.
I tried doing this via a buss to aux track, but it only picked up one side of the stereo spectrum, which is no good.
I remember this was easy to do in Ableton Live, as you could directly output from one track to another track, but I cannot find this option in Logic.
Thanks,
Tristan.
Mac Pro Mac OS X (10.4.9) 3GB RAM

Send them to a bus. Buses are stereo in Logic and you can apply the same effects to the bus that you can to any track. The output from the bus is normally the main ouput (though you can change it) so it gets back into the mix.
Perhaps the easiest way is to route the I/O of the selected tracks not to Output 1/2 but to Bus 1 and do that for all your backing tracks.
Another way is to click on the Send button on the vocals track and route to Bus 1. Then ramp up the send pot, but check your levels since you are now sending both the original track and the bus to your output. If you don't want the originals to go into the mix, set the tracks to no output or use the first method I mentioned.
You'll probably want Bus 1 in your arrange window. To get it, open the track mixer, click on Global (to display all the objects in your system), scroll to to the extreme right and double click on the label Bus 1.
Hope that helps!
Pete

How do you combine 2 mono tracks into a single stereo track?

Question here:
How do I combine 2 mono tracks into a single stereo track in Logic?
I recorded using my left and right out of my keyboard to a hard-disk recorder (Korg d888). The files are made as two separate wav files. Is there way to combine these in Logic so I can treat it as one stereo track?
I have several files to do and am hoping Logic has something like a "combine tracks to stereo track" tool or something.

Solo both tracks and bounce them with no effects and faders at 0 dB.

How can I extract the two channels from a stereo track?

Hi,
I am writing a class that is able to draw an audio signal. It seems to be working well but I have a question. If I load a mono audio file I am able to draw it on a graph by using the byte[] array and everything is ok until now. That's the code:
void Draw(byte[] x)
            Graphics g=getGraphics();
            Graphics2D g2=(Graphics2D)g;
            g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,                     RenderingHints.VALUE_ANTIALIAS_ON);
            for(int i=0; i<x.length-6; i++)
                g2.draw(new Line2D.Float(((i*(getWidth()-6))/x.length)+5, (getHeight()/2)-          ((x*(getWidth()-6))/x.length), (((i+1)*(getWidth()-6))/x.length)+5, (getHeight()/2)-     ((x[i+1]*(getWidth()-6))/x.length)));
The results is correct only if I have a mono track. Obviously when I get a stereo track the array becomes very large so here the question. How can I extract the two audio channels from a stereo track?
Thanks in advance.
Maurizio Di Vitto

A mono audio stream is stored [sample, sample, sample, sample], so just a list of samples in an array.
A stereo sample is interleaved in the same manner, so you get [left-sample, right-sample, left-sample, right-sample]
So every nth sample is the 1st channel, every nth+1 is the 2nd channel...

In Final Cut Pro X 10.1.1 I'm trying to separate left and right stereo tracks to delete left and pan right to centre. I cannot find a way to do this.

I record in stereo with a 10KHz tone down the left channel to defeat AGC on my camera and mic feed into the right channel. When I edit, I want to mute/delete the left channel and pan the right into the centre, to leave me with mono audio across both left and right. I could do this easily in FCP 6 but can find no way to do it in FCP X. I'm using the same source files. When I choose Dual Mono mode in the Audio Inspector, it mixes left and right and pushes the combined signal into both channels, giving me a mix of 10KHZ tone and audio in both left and right. Stereo mode shows me the two channels correctly with one driven hard (the tone) and the other at good voice levels. I just want to kill the left channel and pan the right to centre.
I'm converting original TOD files using MPEG Streamclip before import and definitely keeping audio as stereo.
This is driving me nuts! It should be simple and is in FCP 6. Any help greatly appreciated.
Stereo Setting
Mono Setting

Mb - If you're using FCPX 10.1.1 and Mavericks, make certain you've downloaded the most current Sony XDCAM FCPX plugin from sonycreativesortware.com unless you're using an older version of FCPX and then you'd need the previous XDCAM plugin.
You shouldn't see 8 mono tracks. There are import settings in /fCPX that you can check and I don't ask FCPX to analyze my media or seperate mono or combine stereo, etc. I like to have everything come in as it is, especially because I know what I've done with every channel, etc.
What I wrote to Ian is what I'd tell you - so please take a look at how you can make a "stereo" track that is actually two mono tracks, mono. Once you do that you can address each mono channel by itself since it needs different volume, compression, and EQ than other channels.
There are ethernet, USB, and firewire controllers that work in FCPX, but that's not the typical workflow because generally if you're getting into any amount of post audio sweetening beyond basic "staples" audio treatment, you would instead use "Roles" to export your audio to Logic or Pro Tools and do you work in those applications and then cut the final product back into your FCPX project. In Logic or Pro Tools is where you might use a controller.
In terms of automating levels, I'm not positive I know what you mean. Compressor is a nice internal Logic plugin that kind of automates levels in a way but its about compressing peaks at a threshold that you set and at a ratio of compression. So I may not understand what other automation is available unless you've exported you tracks to Logic or Pro Tools.

Export mixdown of several stereo tracks as one mono track

How can I select a few stereo tracks in STP and export them as a single mono track? either back to FCP or as a standalone file?
Thanks!
Processor 2 x 2.8 GHz Quad-Core Intel Xeon
Memory 32 GB 800 MHz DDR2 FB-DIMM
Graphics NVIDIA GeForce 8800 GT 512 MB
Software Mac OS X Lion 10.7.4 (11E53)
Final Cut Studio 7
Oops, i posted this in the wrong discussion group. can this be moved to STP?

On the Channels Strip (of the Audio Track with the Audio Region), ctr+click on the left segment of the Input Button. That opens a popup menu where you can select Left (only the left channel of the Audio Region is played as mono), or Right (only the right channel of the Audio Region is played as mono).
Once the signal flow of the Channel Strip is mono (one channel), you can use the "Mono➤Stereo" version of some plugins to convert the Channel Strip to a stereo channel.
About your second question. If you are referring to the little blue "Catch Playhead Button", that automatically scrolls the Workspace when the Playhead reaches the right border to keep the Workspace visible. You also can also enable the "Scroll in Play" mode in the local View Menu. That one locks the Playhead in the center and scroll the Workspace "underneath"
However if you are referring to that little Play icon in the left upper corner of the Region Header (only visible in the Editor), that one, the "Solo Play Button", only plays that Region in solo mode. It is basically a combination of "Play " and "Solo" in on button. You can find all those little informations and much more in my graphically enhanced manual "Logic Pro X - How it Works".
Hope that helps
Edgar Rothermich
http://DingDingMusic.com/Manuals/
'I may receive some form of compensation, financial or otherwise, from my recommendation or link.'

Soundtrack pro can't export stereo tracks

Ok. I have a problem. I'm recording some stereo cassettes into logic, then cleaning them up in Soundtrack. the editing flow is very usable. now, when I want to save, I have very limited options. Why can't I save as mp3/m4a/etc?? I see that export is what I need. Oh whoops, you can't export from a stereo track. Why?!!!?? Ok, so how do you convert a stereo track to multitrack to export? I could pretty much move completely over from Audition if I could figure this out. Help? I can't be the only one editing stereo masters in STP?

ok, how can I import stereo into two mono tracks? can files be moved from edit mode stereo into multitrack?

Changing 2 Mono Tracks back to 1 Stereo Track on timeline, or source monitor?

I was working in Premiere Pro CS 5.5 and I switched Audio on a clip to 2 Mono Tracks instead of its original 1 stereo track. I brought it in the Source Monitor and then on the timeline.
I then realized later on that I wanted to switch the audio back to 1 Stereo Track instead of the 2 Mono tracks.
I could not figure out a way to do this.
Is it possile to do this? If so. how?
Thanks in advance?

Joe has given you a good answer, but exactly why do you want to switch the two mono Tracks back to Stereo?
If one is not doing certain things, then they will be Mixed-down to stereo on Export. However, certain editin operations WILL be easier with both back in stereo, if you are doing those.
Good luck,
Hunt

Trying to connect 2 stereo tracks

Hello
I have 2 stereo tracks which aren't connected. I selected modify stereo pair hoping they would connect but that didn't help. I would love some help. Thanks!

Select the two audio clips.
Go to the menu Modify > Link and Toggle it OFF (the check mark next to it will go away) then on the same menu, with the clips still selected, Toggle Stereo Pair and OFF (the check mark next to it will go away).
Now go to the timeline and click and drag one of the two audio clips to the track adjacent to the other. Make sure the start and ending points are the same (this is easier with Snapping turned on).
Once you have the two tracks adjacent and in sync, select them both and toggle Stereo Pair ON.
Then select the stereo pair audio track you just created and the video it goes with and toggle Link ON.
To prevent this in the future, make sure your audio routing is set for adjacent tracks.
MtD

Weird XML behaviour - mixes L and R of a stereo track on export

Situation:
1. I have a sequence with a dual mono track (stereo track with L on track A1, R on track A2). L = microphone 1, R= microphone 2. When exporting an XML (e.g. for sync in PluralEyes), the channels get mixed together, like a mono mixdown.
Here is a screen vid showing a round trip of the XML and what it is doing to the audio: https://www.dropbox.com/s/2st9308p3sjq4qd/Premiere%20Weird%20XML%20Audio.mp4
Note: A temporary work around once I have my sequence synced by PluralEyes is to make the audio media offline, then relink it. This seems to reset Premiere's referencing of the file, and L and R are on A1 and A2 once again.

Ok, so here's the solution that I've worked out.
I created a new mono submix track at the bottom of all my tracks. Then in the Audio Mixer, I remapped my stereo audio track to go to the mono submix before going to the Master. This forces all of the audio to come out as mono in the end, which is exactly what I was looking for.
For what it's worth, a stereo track filled right or left doubles the audio and is louder then the normal stereo track, even though it's playing two channels of audio they don't add up to the loudness of the dual mono. I just applied a +4dB gain to the stereo sections to compensate for this.

How to play back one channel of the stereo track in both headphone cans?

I recorded two microphones in one stereo track. Is there some way I could listen to the left channel and then to the right channel in both cans in my headphones, like a mono track? Panning moves all sound to the left can or the right one in my headphones. But I'd like to listed Left channel as mono channel in both headphone cans, and then press some button and listen to the right channel in both cans. How can I do it?

No problem. By the way, there is a wrinkle in Logic that you may not be aware of.
When dealing with a stereo track, the knob in the channel strip that you may think of as a Pan knob is not. It's a Balance knob. What is does is to change the level of what's in either left or right channel but does NOT move the left signal to the right or vice versa.
To prove this:
* Create a project with two mono audio tracks
* Put different files on each track
* Pan one hard left, the other hard right
* Bounce the result
* Create a new project with a stereo audio track
* Import the audio that you exported above
* Use the Balance Knob to bring either up or down
* Note you cannot move one signal from its original position
If you want to pan a stereo signal, you have to use the insert: Imaging > Direction Mixer. Only then can you position a stereo signal in your stereo field. This is documented in the user manual in the section called: "Setting the Pan, Balance, or Surround Position".
Have fun!
Pete

How do i export 16 mono tracks in a sequence as 8 stereo tracks.

Hi I'll be working with 16 tracks of mono audio in Premiere to enable flexibility with my audio edits but when i export i want to make those 16 tracks as 8 stereo tracks, as this is what our specs for TX are. So 1&2 will be stereo track 1, 3&4 will be stereo track 2, 5&6 will be stereo track 3 and so forth... In FCP this is easy as you can link and unlink the audio in the sequence, and in the sequence settings audio outputs dictate whether it will be mono or stereo.
From what i gather i can edit in mono sequence then copy and paste into stereo sequence, however as the audio tracks are 1 track whether it is stereo or mono how do 16 fit into 8 when pasting.
Sorry in advance if i am missing something very easy here, but im pulling my hair out with this.
Thanks in advance
Jason

PP wil naturally send a track to two channels, even with a multichannel Master. So you can ruote the tracks in the Mixer window.

Making two mono tracks from one stereo track?

I've used the M-Audio MobilePre USB device to record vocal and guitar at the same time. In GarageBand, this inputs as one track, with guitar on the left channel and vocal on the right.
I'd like to separate this one stereo track into two mono tracks for further mixing and editing.
Any ideas on how to do this?
Thanks!

therealkenrg wrote:
I'd like to separate this one stereo track into two mono tracks
http://www.bulletsandbones.com/GB/GBFAQ.html#stereotomono
(Let the page FULLY load. The link to your answer is at the top of your screen)

Create 2 stereo tracks from 2 mono tracks

If I send a FCP sequence to a STP mulitrack project it opens with a left channel (A) as the on camera mic and the right channel (B) as the wireless mic. Since I want both to come through both channels I assume I should make the edits/corrections on both, then insert 2 new blank tracks. I'll then copy/paste each of the previously mono tracks so I have 2 stereo track, right and left A and right and left B. Does this sound correct or am I missing something here?

No. One work around would be to create a stereo sub mix channel, this would at least give you a single fader but it won't help you when editing. You could try grouping the video and two audio, then they should be easier to select.

(True) "Real" Stereo tracks converted to Mono after 5.1 update

Hello:
I have true stereo (as opposed to dual/centered mono) vocal and guitar tracks included in my most recent project. When I played everything back yesterday I noticed that all the "real" instruments had been converted to mono. I checked the source AIFF files and discovered they are still stereo. I typically record multiple vocal tracks and the export the resultant combined vocals (mono) and clean things up in Amadeus Pro. I often split the track, offset one channel, merge the channels and save the now-stereo file which gets imported back into GarageBand. This saves me from having literally hundreds of iso vocal tracks to deal with and it also opens up the vocals by spreading them across the stereo image.
The unwanted stereo to mono conversion has happened once or twice the past and I've never really figured out a remedy other than reimporting the AIFF files.
I was simply curious if anyone had experienced this phenomenon before and discovered a fix before I began the task of reimporting the stereo tracks. Btw, earlier versions of the project were unaffected by the update (if indeed it was the 5.1 update that cause the problem)—so it appears that only the current working project was altered.
Thanks!
~Huck

I discovered I had only one option (mono) until I unplugged my Mbox and selected System Setting as input source in GarageBand. At that point, stereo became available as a option and I went track by track enabling stereo playback. Thank you very much for your assistance! While I'm not entirely certain why having my Mbox selected as the input source changed all my "real" tracks to mono, at least I don't need to go through the hassle of re-importing the source material. I need to use the Mbox for guitar and bass tracks, so hopefully this was a one-time oddity.
Again, thank you for your help!
~Tom

Stereo Tracks

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