KVR Audio

Iceman_jkh · Post by **Iceman_jkh** » Sun Oct 15, 2006 3:51 pm

Hi all,

Has anyone looked at converting the open source Winamp Centre channel DSP (called "Centre Cut") to a VST?

Centre-Cut project is here http://www.hydrogenaudio.org/forums/ind ... opic=17450
The DSP was written in C++, so all the processing is already written. Its just a matter of transcoding it from a Winamp DSP to a VST.

I'm VERY keen on using this VST but the conversion is way above my skills as a programmer. This might be of interest to those looking for an excellent centre channel extractor or remover, and if you are able to code it to VST then even better

Download the DSP and listen to the effect for yourself - Its easily the best centre channel processor Ive heard.

If anyone could help me transcode this to a VST then I'm also interested to learn how.

Thanks for readin,
Ice

Username is taken · Post by **Username is taken** » Sun Oct 15, 2006 5:10 pm

center cut? why? there are actually tons of these useless things around.

Iceman_jkh · Post by **Iceman_jkh** » Sun Oct 15, 2006 5:18 pm

Most of them are not that great. Have a listen to this one yourself.

Kingston · Post by **Kingston** » Mon Oct 16, 2006 1:04 pm

looks relatively straightforward. Why not ask the creator himself? A GUIless VST version of this would be a piece of cake for him, I presume.

Then again, there are several of these FFT/wavelet based center extraction plugins around already:

http://www.elevayta.com/

try extra boy.

Iceman_jkh · Post by **Iceman_jkh** » Mon Oct 16, 2006 1:38 pm

Kingston> I already asked him. He said no. I dont know why, as yes, I would have thought its easy for him.

I have tried ExtraBoy (believe me, Ive tried pretty much everything available) and I still think Centre-Cut is superior to them all (and by quite a lot in some cases).

Cheers

Kingston · Post by **Kingston** » Mon Oct 16, 2006 1:58 pm

hmmh. you're right. this one performs exceptionally. I've created a similar (ridiculously brute force) algorithm for my personal use (in matlab) but this one sounds even cleaner. I'll have a look of what he has done.

Iceman_jkh · Post by **Iceman_jkh** » Mon Oct 16, 2006 2:28 pm

Glad you had a listen. It really does shine!

Id want to be able to feed it a stereo input and have the following outputs:

1. Left (w/ Centre removed)
2. Right (w/ Centre removed)
3. Centre only
4. Left (untouched - but delayed sufficient samples to still be in sync with whatever processing delay occurred for 1/2/3)
5. Right (untouched - but delayed sufficient samples to still be in sync with whatever processing delay occurred for 1/2/3)

Ice

Kingston · Post by **Kingston** » Mon Oct 16, 2006 4:30 pm

instead of hard coded options like that, the algorithm (and all it's variations) allow a completely free "re-panning" and mixing of things. You basically have the stereo file (two channels) separated to three, and give them all a separate fader, pan, mute and invert phase. Flexible, even if not absolutely necessary.

And yes, I'm on it. Will take several weeks though as I'm very busy with other coding the moment. Thanks for the link and I'll keep you all posted.

Iceman_jkh · Post by **Iceman_jkh** » Tue Oct 17, 2006 12:27 am

Awesome

Can't wait! (although I'm dying to get this coded as soon as possible - for a project that's nearly finished

)

duncanparsons · Post by **duncanparsons** » Tue Oct 17, 2006 8:23 am

I'm gonna have a poke around, tho' like Kingston, I'm rather snowed under as we speak!

DSP

Iceman_jkh · Post by **Iceman_jkh** » Mon Oct 30, 2006 4:05 pm

Hi guys/gals

Just wondering if anyone else has had a crack at this or made any progress yet?

Thanks
Ice

Iceman_jkh · Post by **Iceman_jkh** » Thu Nov 09, 2006 1:48 am

*Tap Tap*

Anyone...?

duncanparsons · Post by **duncanparsons** » Thu Nov 09, 2006 10:46 am

I've poked around the code, as I said I would, but the snow is still falling!

It's on the list, but probably not as a direct conversion - I have other ideas. But we'll see!

DSP

Iceman_jkh · Post by **Iceman_jkh** » Mon Dec 18, 2006 12:53 pm

Just wondering if anyone has been playing around with this anymore?

Cheers
Ice

Space Boy · Post by **Space Boy** » Tue Dec 19, 2006 7:24 am

Iceman_jkh wrote: I have tried ExtraBoy (believe me, Ive tried pretty much everything available) and I still think Centre-Cut is superior to them all (and by quite a lot in some cases).
Cheers

Hi, as you might expect, I just gave Center-Cut a try.

I suggest to give Extra Boy another try using, for example, the preset "Vocal Out - Mode 2 (HR)" - it's superior at removing the center vocals while retaining the stereo soundfield (at least on the material I used).

Note that there are many presets on Extra Boy that work better depending on the material. I think you can always find a preset on Extra Boy that is working better than Center-Cut (this is also what (my brief understanding of) the algorithmic differences suggest).

Paul

Centre-Cut Winamp DSP to VST conversion