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Mono to Stereo

New Here ,
Jul 08, 2016 Jul 08, 2016

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I'm new to Premiere and Audition and loving it although I'm stuck. I'm making a short film with narration. I shot the movie and the voice over was recorded on a separate voice recorder which is mono. I used Audition to extract the sound clips I needed to use in Premiere. I now notice that the sound has two tracks, L & R, but the sound is only on the Left and the Right is 'empty' How do I copy the left channel into the right, so it's the same sound in both?

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correct answers 1 Correct answer

Community Expert , Jul 08, 2016 Jul 08, 2016

Rich Zep wrote:

I now notice that the sound has two tracks, L & R, but the sound is only on the Left and the Right is 'empty' How do I copy the left channel into the right, so it's the same sound in both?

I don't think the others read this quite correctly!

Ctrl-A to select the entire track, then Effects>Amplitude and Compression>Channel Mixer, and select the 'fill right with left' preset, apply it, save the results, and you're done.

I should also point out that this doesn't make it 'stereo' as such

...

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Engaged ,
Jul 08, 2016 Jul 08, 2016

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Waveform View>Edit>Convert sample type>Channels: Mono.  ( The default bitrate of 24 is good, too.)  The resultant mono file will play in either a mono or stereo track in Multitrack, no problem.

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LEGEND ,
Jul 08, 2016 Jul 08, 2016

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When you use Convert Sample Type/Channels/Mono click on the Advanced tab and set Left Mix 100%, Right Mix 0% to get all of the left channel and none of the right.

Also Effects/Amplitude and Compression/Channel Mixer/Fill Right with Left.

Or Edit/Extract Channels to Mono Files.

Or in Waveform view Toggle R channel off and select all of left channel and copy. Then toggle L Channel off and Paste copied audio into Right channel. 

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Engaged ,
Jul 08, 2016 Jul 08, 2016

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ryclark wrote:

When you use Convert Sample Type/Channels/Mono click on the Advanced tab and set Left Mix 100%, Right Mix 0% to get all of the left channel and none of the right.

Interesting.  Does that achieve something that a simple 'convert to mono' procedure doesn't?

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Advisor ,
Jul 08, 2016 Jul 08, 2016

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Yes.  It removes anything, e.g. "noise", that may be present in the unwanted channel.

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New Here ,
Jul 08, 2016 Jul 08, 2016

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Thank you both for your excellent answers which work fine except that isn't the effect I was looking for, but I feel I didn't explain properly.

Up until  a few days ago I used Power Director for video and Audacity for sound. My sound recorder files are in mono. In Audacity I could make this into stereo, so I had a left and a right track which were identical, so the same sound came out of both speakers. The sound I have in Premiere is mono. There is sound in the left but nothing in the right. Following your suggestion resulted in one channel but only on the left. I'm looking for sound on the left and the right.

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Community Expert ,
Jul 08, 2016 Jul 08, 2016

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Rich Zep wrote:

I now notice that the sound has two tracks, L & R, but the sound is only on the Left and the Right is 'empty' How do I copy the left channel into the right, so it's the same sound in both?

I don't think the others read this quite correctly!

Ctrl-A to select the entire track, then Effects>Amplitude and Compression>Channel Mixer, and select the 'fill right with left' preset, apply it, save the results, and you're done.

I should also point out that this doesn't make it 'stereo' as such, just dual mono, which is rather different...

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LEGEND ,
Jul 08, 2016 Jul 08, 2016

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That was the second option suggested in my post above.

But as others have implied you shouldn't necessarily have to have a dual track mono signal to make the narration come out of both speakers. Surely that's what panning a mono track is for or doesn't Premiere do mono panning?

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Community Expert ,
Jul 08, 2016 Jul 08, 2016

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ryclark wrote:

Surely that's what panning a mono track is for or doesn't Premiere do mono panning?

I have no idea. I was thinking of installing it to find out what the options are - I suspect that with many of the things that people think that they have to import into Audition to fix, they don't need to at all!

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New Here ,
Jul 11, 2016 Jul 11, 2016

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Thank you all for your input. SteveG's suggestion was what I was looking for, yes, it's mono in two channels. With the other ideas it still only came out of one speaker. I haven't a clue about mono scanning.

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LEGEND ,
Jul 11, 2016 Jul 11, 2016

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That should be mono 'panning' not 'scanning'.

Panning and balancing in Premiere Pro

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New Here ,
Dec 29, 2023 Dec 29, 2023

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Is there a way to just make it "record" like that (in this pseudo-stereo with sound in both L and R) to begin with, vs. having to select and convert each file after the fact?  (I usually record using Total Recorder of its simplicity.  I can drastically reduce the number of keystrokes/clicks required to get what I need, which allows me to focus on the product I'm trying to record.  I'm using  only one mic, as well (and one person - me!).  I, too, need sound in both speakers!
I just now downloaded Audition because I could (have the whole adobe set of apps at my disposal), but perhaps there's no benefit to doing the actual RECORDING on Audition in my case, and just use it if one needs to edit?

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Community Expert ,
Dec 29, 2023 Dec 29, 2023

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Yes you can use a single mic to make a recording on both channels quite easily. All you need to do is go to Edit>Preferences>Audio Channel Mapping and set the default input so that both L and R use the same source (using the twirl-downs I ringed):

Instant dual mono.JPG

 Now if you make a stereo recording in Waveform view, it should give you both channels fed from a single mic.

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New Here ,
Dec 29, 2023 Dec 29, 2023

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Thank you for your quick response!

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New Here ,
May 09, 2019 May 09, 2019

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Thank you! This is exactly what I needed!

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