Broadening or narrowing stereo files

I work a lot in sound design. It's important for me that i get total control of how wide the stereo perspective is in every file i use.
But in Logic i can only pan from left to right. I can not center both of the sides?
Is there a way that you can change the pan from only one to both of the stereo sides?

Sampleconstruct wrote:
Or if you want it the oldschool way you can convert your interleaved stereo file into a split stereo file, separate the split stereo file into two independent regions, put them on two mono tracks and pan them around as you like to.
Alternatively, you can create a duplicate channel strip with the same audio, and at the bottom of the channel strips, change one from "Stereo" to "Left" and the other from "Stereo" to Right." Pan each as desired to control your stereo width.
Example:
http://www.digitaldroo.com/logicforum/leftright.mov
But then again, it's easier just to add a Direction Mixer plugin.
By the way, with the Direction Mixer plugin, you can actually broaden the width of the stereo field beyond what you can do with two channels panned hard left and hard right. This pretty much affects mono compatibility in the mix, but the option is there if you want it.
-droo

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How to convert false (dual mono) stereo files ?

I imported an enormous amount of regions from a Final Cut Pro project, and because the cameras each had mono mics but were recording audio in stereo, all the audio files are technically stereo, but contain only mono information.
So I've got hundreds of stereo-interleaved files in my Logic session, but each file contains only mono information, so my project is twice the size it needs to be.
Can anyone suggest a way to remove all that redundant information ? What I want to do is split all the interleaved files, then select all the .R files and delete them, but I don't see any way to accomplish this in Logic, other than file-by-file (I have 500 of them...)
Anyone been down this path ?
Thanks!
-James

Hey, thanks for all the suggestions, Seeren!
I'm not sure how your method is generating only .L files for you--when I split interleaved, I always get both sides... but not a big deal. It's easy enough to delete half the audio.
The real problem is getting the files replaced without losing all the arrange work: your method requires manually replacing the old stereo files with the new mono files in the arrange, which would be a ton of work in large projects like mine...
But... I did find a solution to this--it's not exactly elegant, though, because it requires some filename hacking:
Turns out if you have a reference to a stereo interleaved file in your project, and you replace it with a mono file of exactly the same length and filename, Logic will happily accept the substitution without a complaint. So the way to replace all the stereo files with the .L files is:
1) Copy the stereo interleaved files into split stereo, then remove the new split stereo files from the audio bin (but leave them on disk)
2) Close the project
3) Remove the original stereo files from the "Audio Files" folder, and delete the .R files.
...that's all easy... then...
4) Rename all those .L files, removing the .L so they have the same names as the original stereo files
5) Reopen your project--Logic will now refer to the new mono files, not the original stereo files
Step #4 requires some hacking to do efficiently: I used the command line to rename all those files quickly. There are probably utilities out there that could have done the job with a GUI, and AppleScript could probably do it, too.
Anyway... this works, if it's helpful to anyone else.
But ultimately I guess this is a feature request: it's cool that Logic makes it so easy to manipulate split stereo files as a single unit. But there are occasional times when you need to manipulate stereo files individually. There should be a track command in the arrange that takes a stereo track and replaces it with two mono tracks... rather surprising this doesn't seem to exist (it's one mouse click in ProTools [ducking])...
-James

Odd issue when splitting stereo files..

One very useful feature in AA CS 5.5 is splitting stereo wavs into two mono files. I work in games developer and need this.
But an issue has arisen with a tool I use that converts to a particular format for Sony PSP games: it doesn't like these split files. It's fine with the stereo files and with other mono samples, but not the product of the "Split to Mono" function.
Does something happen to the .wavs when this is carried out; are they 'different' in some way? Opening them and using "Save As.." to create a new file solves the problem but it would be good to know why it's happening.
Jerry

Erase and reformat the ext HD. Then, redo the SuperDuper! backup.

Splitting Stereo Files

How do you split stereo files in Logic? Anyone? Whenever I import a stereo file, it comes as one interleaved track. I change the track to accept stereo files (at the bottom of the fader in the lower left hand corner) and even when I double-click on the file, I see two channels, yet I can't alter them. Is there a way to fix this? Please help. Thanks.
Josh
G4 Mac OS X (10.3.9)

How do you split stereo files in Logic?
I see two channels, yet I can't alter them. Is there a way to fix this?
Is your question: "How do I split a stereo interleaved file into two mono files with Logic?" or is your question "How do I use split stereo (dual-mono) files in Logic?"
For the first, there are options in the audio window to convert and split files.
If it's the second, then you can turn "Universal Track mode" OFF in your audio preferences - now all channels are mono and stereo files are controlled by two mono faders.
However, working in this mode is kinda ugly and has some disadvantages, but if you prefer it, fair enough.
Finally, if you just want to be able to process left and right channels of a stereo file independently, you can always route to a couple of busses and pan left or right to get the two halves, or duplicate your stereo track and select "Left channel only" and "Right channel only" by click holding on the O-OO stereo channel selector.
Does that help?

How do I bounce two mono split stereo files to one mp3?

Might sound like a stupid question, but I have several problems:
I bounced a waveburner-mix of my favorite songs as a split stereo file and inserted the two files in two logic mono audio tracks.
First problem: Do I have to pan the left audio-track left and the right to the right or do I keep them centered?
Second problem: The two tracks are louder than the original track. (no matter, if they are panned or centered. Shouldn´t the original have the same volume at my output-channel?
Third problem: Is it possible to bounce more than 2 GB with Logic 8? The mix is very long and when I want to bounce it, logic tells me that it is too big. Can I bounce larger files with logic 9 under OS 10.6?

Felix Bartelt wrote:
Last question remaining: Can I bounce larger files under Logic 9 and OS 10.7. or does L9 also have the 2 GB restriction?
No and no. The file size restriction is not Logics' restriction, it is a restriction of the file type itself. To be able to bounce longer and/or bigger files, use .caf.
From the manual:
+AIFF: The AIFF file format cannot handle audio file recordings larger than 2 GB:+
++For 16-bit, 44.1 kHz stereo files, this equals a recording time of about 3 hours and 15 minutes.+
+For 24-bit, 96 kHz, 5.1 surround files, this equals a recording time of about 20 minutes.+
+WAVE (BWF): The WAVE file format cannot handle audio file recordings larger than 4 GB:+
+For 16-bit, 44.1 kHz stereo files, this equals a recording time of about 6 hours and 30 minutes.+
+For 24-bit, 96 kHz, 5.1 surround files, this equals a recording time of about 40 minutes.+
+CAF: If the size of your recording exceeds the above limits, choose the CAF (Apple Core Audio Format) file format, which can handle the following recording times:+
+About 13 hours and 30 minutes at 44.1 kHz+
+About 6 hours at 96 kHz+
+About 3 hours at 192 kHz+
+The bit depth and channel format—mono, stereo, or surround— *do not affect* the maximum recording size of CAF files.+

Importing Stereo File to Two Mono Tracks?

I have a stereo audio file. I'd like to put it into GB2 with one side of the stereo file as one mono track and the second side of the stereo file as a second mono track.
Is there any way to do this?
Thanks,
Leon

Leon, Here is a file explaining what Monomaker does.
Monomaker is a simple mono-merging and stereo-recentering utility plugin.
You can use the mono merge parameter to progressively merge your stereo audio channels into a single mono signal. Turning mono merge all the way up to 1 will make your sound completely mono. Turning mono merge all the way down to 0 will leave your audio unaffected.
You can then recenter your signal using the pan parameter. The panning is equal power (meaning that as you move further over to one channel, sound from the other channel is copied over to the first channel in order to keep the total volume consistent).
Also, in case it's useful, you can re-route the 2 input streams in a variety of ways by using the input selection parameter. "Left-right" means that everything is normal, "right-left" means that the left and right streams are swapped, "left-left" means that you lose the right stream and get the left stream copied to both inputs, and "right-right" means that you lose the left stream and get the right stream copied to both inputs.
Monomaker's signal path is input selection first, then mono merge, then pan.
I have just downloaded it myself and have not looked at it yet. I apologize in advance for not checking it first before posting it. It may or may not help you, and I do not know if it works in Garageband.
Here is the site I got it from
http://smartelectronix.com/~destroyfx/audiounits.html

How to link 2 regions as a stereo file....

Hi. Is there anyway to link two regions together so they move and are cut together as if they were a stereo file? Thanks, Ben

Just group the two tracks together,under the mix window "group" menu.
When you create the new group make sure to select "edit" also,and then you will be able to edit the tracks together in the arrange window.
Cheers

How to create MS (Mid Side) tracks from a stereo file

Hi everyone.
Can anyone tell me how to create MS tracks from a stereo file?
I used to do it on old analogue desks but can't figure how to it in logic.
Would appreciate assistance.

Hi guys. Here's what I'm really trying to do...It's to do with digital - DAB - radio.
I've noticed on DAB radio that certain songs exhibit weird and severe loss of stereo image. e.g.
When listening to "Riders on the Storm" by the Doors the keyboard solo goes missing. Totally vanished, bar a weak reverb remnant.
When I first heard this problem it reminded me instantly of an experiment I made with MS encoding on an analogue desk with that very track some years ago: which I mentioned in my first thread.
I'm not attempting to use MS here for a positive purpose. Quite the reverse! It is the INCONPATIBILTY that I am after.
DAB is broadcasted in the UK using MP2 encoding, which divides the spectrum into 750Hz portions. That makes 13 portions, roughly, if you divide 750 into 10000. I've just set up 13 versions of Riders on the Storm and have bandwidth limited each accordingly: 20 Hz-770 Hz, 770 Hz-1520 Hz, 1520 Hz-2270 Hz etc.. Low and behold, weird things are already starting to happen to the stereo image. Jim Morrison's vocal exihibits a 1.5 second time delay (i.e. loss of reverb intergity, reverb transformed into a discrete one beat time delay) when all thirteen tracks are played together. Now I'm going to try MS encoding this to replicate the way DAB would send these chunks across the airwaves.
If you've got time, try it too! And please give me some more tips on how to create MS from stereo files.
Best.
Power Book G4 15 Mac OS X (10.1.x)
Power Book G4 15 Mac OS X (10.1.x)

"disconnect split stereo files" not working

I'm trying to split a stereo audio file into two mono files (manual page 855):
Disconnecting Split Stereo Files
Both sides of a split stereo file are normally edited together. On
occasion, however, you may need to edit one side individually.
To disconnect a split stereo file:
1 Select (either side of) the split stereo file in the Audio Bin.
2 Choose Edit > Disconnect Selected Split Stereo File.
You can now edit both sides of the recording as individual mono files. This function will
only disconnect one split stereo file at a time.
When I select the stereo file in the Audio Bin and choose "disconnect selected split stereo file", the following pops up:
"please select exactly the split stereo audio file you want to disconnect"
I thought I was?
I see the two interconnected circles signifying a stereo file. I choose that file and follow the instructions above but I cannot split the file.

I think I misunderstood. You don't have a split stereo file, you want to split an interleaved file. I see no split stereo files (suffix .L and .R) in your screenshot, so...
From the local Audio Bin menu, choose *Copy/Convert File(s)*
In the conversion dialog, set *Stereo Conversion* to *Interleaved to Split*. Check the *Add to Audio Bin* option. Now two files, suffixed .L and .R, will appear in the audio bin. These are split stereo files.
regards, Erik.
Oh, and this is how to post screenshots:
The pic needs to be online
Once you've uploaded it, go to where it is uploaded, right- or ctrl-click on the picture and choose *Copy Link Location*. Go to your post and add the following syntax to it:
{IMG src="pastecopiedImageLocation"}
You must substitute < and > for the {}braces shown above, and +the quotation marks are essential+.
Use the Preview tab (right above the five format buttons) when writing a post to check if the screenshot shows up in your post, before actually posting it.
(© iSchwartz)

Importing Stereo files in Logic

I am trying to import stereo interleaved audio files into Logic Pro 9. When I do, the stereo files import as mono files and won't play. Is there any way around this, or is Logic only designed for mono files? This does not seem logical, although maybe it's because I have not yet been initiated into the cult.
There is also an interesting thing in that for some reason in my version of Logic, when you mute a track from the mixer, it does not light the M button in the Arrange window, and vice versa. Is this the way it was designed or have I accidentally hit a wrong and destroyed my ability to ever mix in Logic again....

Stereo files import as stereo files for more than 99.99 % of Logic users, so... make sure you have Universal Track Mode enabled in the coreaudio preferences.
Also in the preferences there is a setting to make the mute (and solo) buttons in the Mixer and Arrange independent of eachother or to link them to eachother.
Logic Pro>Preferences>Audio>General
set Track Mute/Solo to Fast (Remote Channel Strips) (=linked).
The names of both those settings could be more obvious though (like Linked vs Independent or something like that).
O, and it is not a cult, not even remotely. Logic is being used by all religions, and also by atheïsts.
I adore Logic, but I would never worship it.

Logic 8 plays split stereo files random

When I play a split stereo file Logic 8 plays those files random, they aren't synced together. Sometimes some audio files aren't playing at all. Stop and play solves in most cases this problem. I have this on several harddisks.
It seems like a defragmented harddisk. I erased and re-formatted the harddisk already, no results. I use DAE and Core Audio together.
Any suggestions?
Wim

try to use only built-in driver...
which are the interfaces that you have for not DAE tracks?
Is this issue only on the DAE tracks?
This not a Logic problem .. or better I never got this problem!
How many DAE tracks are in your DAE preference settings...
are you sure that you have the DAE DSPs power that can play all tracks that you have selected?
fermusic

Packing Split Stereo Files in a Take (Comp) Folder

Hi everybody
is it possible to pack Stereo Split Files in a take-folder. I can do this with interleaved files, but not with split stereo files..
Thanks Bernhard

Hi,
Except for composite.xml, none of the other files you mentioned(wsdl file, xsd, .jca, .xml etc.) have code in them. .jca file is like config file for JCA Adapters,wsdl and xsd are service artifacts.
The control starts with the endpoint of the service and would propagate to the other components of the composite like mediator,bpel,human taskflow or references like database adapter,JMS adapter depending on the composite design.
Regards,
Ajay

Working with BOTH channels of a stereo file INDIVIDUALLY?

Most of the content I use are interleaved stereo files. The sample editor displays both the right and the left channel of stereo files but my question is: How can we actually work with either the left or the right channel. It's great that I can see both in the sample editor but is there anything I can do in Logic to separate an interleaved file into two channels?
Thanks!

bounce it out or copy/convert from the audio bin, as a split stereo file. rename as Left and Right rather than .L and .R - then reimport as two mono wavs

Moving stereo file from two tracks to one track in timeline

I have a project that I imported from FCP7 to PPCC. The problem is that some of my stereo audio files got placed onto two audio tracks (like they are in FCP7).
I'd like to move these stereo files onto single audio tracks in PPCC. How do this so I can minimize the clutter on my timeline. Please see here:

These may help
Stories Audio Selection
Scripting audio preferences

PPRO CS5.5 - Clumsy handling of Split Stereo Files

Hi....
I work in ProtoolsHD and thus with Split-Stereo files which is standard in that part of the industry.
I would have thought that PPRO would conform to standards and recognize i.e. AudioFile.L & AudioFile.R as being a stereo-pair.
It does not.
So I went ahead and created TWO mono tracks, then selected the .L & .R audio file in the project panel, wanting to drag them into the PPRO timeline.
Instead of putting the files on the two monaural audio tracks, PPRO would put them on the same track only .R would be inserted AFTER .L.
Not very pleasing when dealing with 100 audio clips. And NOT conforming to professional audio standards at all
I went back to PT and interleaved all the splits. But this is not very economical as in case changes are to be made to the score later on.
Then I would have to, in ProtoolsHD, first change the Split and THEN again, convert it to interleaved.
Not a HUGE problem but for an NLE with the word PRO in it, I sure would come to expect that it would handle and recognize Split Stereo Files
Thanks

Jeff,
thanks for chiming in... However, when you import a split stereo file it worx like this
AudioFile.L
AudioFile.R
Two files. Not one.
PPRO does not recognize the Split stereo elements and treats them as two monural files.
So when you open the modify audio file dialog it will only open either one at a time and look like below
Thanks for taking the time to post, though !

Broadening or narrowing stereo files

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