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One channel audio - best way to make two channel?
Cloud9 [Avatar]
Newbie Joined: Sep 23, 2013 03:23 Messages: 3 Offline
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I have audio recorded through a DSLR (via a preamp) to the left channel only (one mic). I can duplicate this channel in AD and copy it to the right channel, but is that the standard way of making the left audio come out from the left and right in the final video?
I have read about "centering" the audio with panning but can't seem to figure out how to do that in AD. I followed (the rather vague) instructions in the help file with no luck. I'm using AD3.

Just really wanting to know, what is the recommended way of turning one audio channel into two, and how is this best achieved in AD.

I know in Premiere they have the fill effect, which I believe is simply a duplication of one channel to the other.

Thank you in advance for any help.

This message was edited 2 times. Last update was at Oct 08. 2013 20:25

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Hello Cloud9,

Welcome to the ADR forum

Using a mono source file, the simplest thing to do is import it into ADR & Produce it as a stereo file. The right track is automatically populated.

Manually duplicating the track, can cause level issues (depending on the sound). It may result in distortion.

Here's an example. First the original mono clip was simply produced as a stereo clip. In the bottom example the mono clip was duplicated in the right track & produced as stereo. The sound is distinctly different - see the waveform.



"Panning" is shifting the balance between left & right channels. It's probably not necessary in your case.

PIX
[Thumb - Mono_Stereo.jpg]
 Filename
Mono_Stereo.jpg
[Disk]
 Description
 Filesize
339 Kbytes
 Downloaded:
2553 time(s)

This message was edited 1 time. Last update was at Oct 09. 2013 02:01

PIX YouTube channel
Cloud9 [Avatar]
Newbie Joined: Sep 23, 2013 03:23 Messages: 3 Offline
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Thanks, that makes complete sense.

Dumb question... how do I produce it as a stereo clip?
Do I do all the modifications on the one channel I want and then "producing as a stereo clip" is the last step?

edit: I just produced it as a stereo .wav and imported that file, but it is only showing as the one channel as well.

This message was edited 1 time. Last update was at Oct 09. 2013 03:26

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Oh -

I wonder what happened there?

So you:
1. Imported the mono audio clip
2. Applied adjustments as needed
3. Produced as a stereo WAV file

and you were left with a (produced) mono file???

If the original clip is not too large, perhaps you could add it here as an attachment. I, and other members, can test & verify.

Here, using various mono source clips, and following that procedure, the produced file is stereo.

Glad to see you were able to answer your own question about producing.

PIX PIX YouTube channel
Cloud9 [Avatar]
Newbie Joined: Sep 23, 2013 03:23 Messages: 3 Offline
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I'm confused.

I've done 2 recordings, one with mono and one with stereo set on the preamp (Juicedlink). Actually, 3, the third in mono but with "pad" on, which should record a lower signal to the right side, is my understanding.

Recording in stereo results in left channel only? This would be right, leaving the other channel open for a second mic?

Recording in mono with pad off, results in sound being evenly recorded to both channels? I was under the impression that mono only recorded to the left channel. Hence confusion.

Should mono only record to one channel, or both? When I import into AD, at the bottom where it lists Audio Codec is says Stereo for all my files (don't know if this is relevant).

How does one learn all this stuff besides with lots of trial and error (and frustration)?

Edit: Just tried to produce a mono file to stereo and can confirm it still only has the left channel. In this case, It was mono with a lower signal recorded in the right channel. I "silenced" this channel in AD, then produced in stereo. Resulting wav file only has left channel sound.

This message was edited 2 times. Last update was at Oct 09. 2013 19:20

hokieinidaho [Avatar]
Newbie Joined: Oct 28, 2012 11:02 Messages: 21 Offline
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Cloud9 - part of the problem is PIX isn't listening to what you're saying. He keeps changing the problem by saying you're importing a MONO file. You clearly stated you had 2 channel (stereo) with sound only on one. I have the same issue. Roxio has a feature in Sound Editor where you right click on the sound clip, and then in channel control you can select "Left on both", "right on both", "left on right", "right on left", etc. Basically a means for easily handling this. I've recently been trying to convert over to Cyberlink, and looking for the same feature in AudioDirector, but unable to find it.
[Post New]
Hello hokieinidaho,

You are right. I've probably misinterpreted what Cloud9 originally posted. My apologies.

Cloud9 - when you import your original audio clip into ADR, does the waveform look like 1 or 2 below? Are you able to attach the audio sample here?



... has a feature in Sound Editor where you right click on the sound clip, and then in channel control you can select "Left on both", "right on both", "left on right", "right on left", etc.


Unfortunately, ADR doesn't have such a facility but it would certainly make life easier! Adding your idea to the suggestion box will get the attention it deserves.

https://forum.cyberlink.com/forum/posts/list/27487.page

PIX
[Thumb - Mono or Single.jpg]
 Filename
Mono or Single.jpg
[Disk]
 Description
 Filesize
230 Kbytes
 Downloaded:
2368 time(s)

This message was edited 1 time. Last update was at Dec 06. 2013 17:53

PIX YouTube channel
[Post New]
Quote: How does one learn all this stuff besides with lots of trial and error (and frustration)?


I've posted some useful links here http://forum.cyberlink.com/forum/posts/list/24641.page#170113

Please - ALL members - when you come across resources that help you with understanding and "how to" please post the links in the forum.

PIX PIX YouTube channel
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