Eliminating side-oriented sounds from stereo mix.

[NuTT98]

Tried that already. It causes some weird phasing effects if not anything else. Just doesn't work.

[kylen]

Time to post a clip I think! Let's roll our sleeves up

[bmanic]

erm....when something is hard left-panned, just use only the right channel and make it mono, there you go? or am i totally wrong here?

Uhm.

#1, when something is hard left panned, there is no right channel.

#2, I don't want to make it mono.

#3, mono, middle info is contained on both the left and right side, hence mono = problem.

- bManic

[bmanic]

If you got ParEQ3 while it was available, just set monitoring to Side.

I'm sure Voxengo has a free plug for M/S stuff like this.

Otherwise - just do it the hard way. Clone your track and invert the phase of one. The information that is common to both (The Mid or Dry stuff) will cancel out, and the Difference (Side stereo ambiant stuff) will remain.

Create the Mid stuff by Summing Left and Right - in other words just convert to mono. The centre dry stuff gets boosted 6dB (which you need to cut to avoid clipping). The side stuff doesn't get this boost, so is effectively lowered by 6dB (or 12dB by the time you've adjusted for clipping).

Combine and mix to taste.

Kingston's algorithm will actually extract the center completely. No mid/side or phase inversion trickery.

Cheers!
bManic

[NuTT98]

erm....when something is hard left-panned, just use only the right channel and make it mono, there you go? or am i totally wrong here?

Uhm.

#1, when something is hard left panned, there is no right channel.

#2, I don't want to make it mono.

#3, mono, middle info is contained on both the left and right side, hence mono = problem.

- bManic

Right but I uh... don't want mono.

[bmanic]

I know, hence I said = problem.

It really is not a trivial feat to retain the center information and separate the sides. It can be done trough rather processor heavy calculations. I'll see if I can get Kingston to answer your questions in this thread.

Cheers!
bManic

[kylen]

Clip worth 1000 words!

[NuTT98]

I know, hence I said = problem.
bManic

Oh, ok. For some reason I saw that as 'no problem'.

[NuTT98]

I've been messing around with various modular configuration using S1, phase reversals, parallel processing.

The closest I got was having the center filtered out with a linear amplitude increase towards the hard-left. Which would have worked perfectly by adding this to the opposite channel thus reducing the channel differential, the only problem with that was I had the right channel jumbled in with the left.

I'm becoming convinced the solution won't be so simple. At least not from a technical viewpoint. Moving a slider would be easy as pie if an effect that could do this existed.

[st3pan0va]

you can get the 'centre' using kn0ck0ut www.freewebs.com/st3pan0va or adobe audition, and mix in right channel to taste. elevayta's plugin ExtraBoy looks as though it might do something useful too. all these use FFT/iFFT though, so not hi-fi.