Isolating sound...

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1945

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I have track in which the bass and drums are panned hard left and guitar is panned hard right, while vocals are heard evanly on both sides. How can I isolate just the sound that is heard on both channels (vocal)? I succeeded in deleting the vocals, but i want the opposite thing, to have a capella. I just can't do it. If anyone knows, please help me.
 
MUTE the other channels except the two vocal channels?

Im not clear on what you are asking.
 
If you have a process that can mute the vocals, then you can use the same process to isolate them.

Take the muted vocal track and invert the phase and add it to the original track with.

Track 1 = drums + vocal + guitar
Track 2: drums + guitar
Track 1 - Track 2 = (drums + vocal + guitar) - (drums + guitar) = vocals
 
bozmillar said:
If you have a process that can mute the vocals, then you can use the same process to isolate them.

Take the muted vocal track and invert the phase and add it to the original track with.

Track 1 = drums + vocal + guitar
Track 2: drums + guitar
Track 1 - Track 2 = (drums + vocal + guitar) - (drums + guitar) = vocals
Click to expand...

That's first thing I tried, but it doesn't work.
To get muted vocal track I have to invert the phase of one channel and then convert track to mono, so it deletes all similarities. Now, to do thing you suggested I have to convert original track to mono and invert the phase. But then you get (I don't know how) just the left track (one with guitar and vocal)
 
oh, I see. there's no way to extract it simply by adding or subtracting. You'll need some center channel extractor effect, that should be able to do a relatively good job.

I'd just run a search of "center channel extractor vst" or whatever plugin format you use.
 
bozmillar said:
oh, I see. there's no way to extract it simply by adding or subtracting. You'll need some center channel extractor effect, that should be able to do a relatively good job.

I'd just run a search of "center channel extractor vst" or whatever plugin format you use.
Click to expand...

I tried that and results are not very pretty. I guess I'll just have to give up.
Thanks anyway.
 
If you really need it done, you can download a 30 day trial of adobe audition, which has this function. It's a bit of work because it involves downloading and installing the software, but it will do it.
 
I tried..... I bloody well tried :(

I went into pro tools, made a 20 second stereo track with bass in the center,
drums hard left and guitars hard right.
Flipped the phase on the left channel and sent it through a mono aux.
This gave me drums+guitar panned center and no bass.
Only then did I come to the realisation that if I tried to phase reverse this
against a)the stereo mix, b)left channel only or c)right channel only, the result
would be reverse panning, nothing more.

Oh well, maybe one day we, at HomeRecording.com, will invent some amazing
editing technique :rolleyes:
 
If the instrumental you made was good enough quality, you can put the instrumental on one track, and the original on another. The invert the original. For this to work, the instrumental has to be almost the same quality as the regular version.

EDIT: Didn't realize I was necro-posting. Sorry guys.
 
um, that won't work either. Here's what you said:

1) NV = L-R

2) WM = L+R

3) WM - NV = (L-R) + (L+R) = 2L = 2(Bass + Drums + Vocal)

edit: oops, finishing this up. Hold on a minute:
 
bozmillar said:
um, that won't work either. Here's what you said:

1) NV = L-R

2) WM = L+R

3) WM - NV = (L-R) + (L+R) = 2L = 2(Bass + Drums + Vocal)

edit: oops, finishing this up. Hold on a minute:
Click to expand...

Yeah, I caught that it wouldn't work. But after an extensive edit, my post as it stands now should work.
 
Chibi Nappa said:
Yeah, I caught that it wouldn't work. But after an extensive edit, my post as it stands now should work.
Click to expand...

L = B+D+V
R = G+V

NV = L-R = B+D-G
WM = L+R = B+D+g+2V

WM-NV = (L+R) - (L-R) = (B+D-G) - (B+D+G +2V) = -2V-2G = -2(V+G) = -2R

Your error is in step 3. You end up with double amplitude guitar and double amplitude vox.

You have 3 unknowns and only 2 equations. You can't solve for it through addition.
 
Well, since we defined L as G+V and not G+.5V then there's no 0.5 in there. You can add it if you want because it's just a scalar, but you have to add it at the beginning.
 
bozmillar said:
Well, since we defined L as G+V and not G+.5V then there's no 0.5 in there. You can add it if you want because it's just a scalar, but you have to add it at the beginning.
Click to expand...
I don't know who defined it but the OP said vocals were on both L and R which would leave me to believe .5 on both.
 
NYMorningstar said:
I don't know who defined it but the OP said vocals were on both L and R which would leave me to believe .5 on both.
Click to expand...

It's a scalar, so it doesn't matter. makes no difference to the outcome. We could define it as 1000V and the result would still be the same.
 
bozmillar said:
L = B+D+V
R = G+V

NV = L-R = B+D-G
WM = L+R = B+D+g+2V

WM-NV = (L+R) - (L-R) = (B+D-G) - (B+D+G +2V) = -2V-2G = -2(V+G) = -2R

Your error is in step 3. You end up with double amplitude guitar and double amplitude vox.
Click to expand...

Damn it, you're right. Hold on...
 
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