KVR Audio

dalor · Post by **dalor** » Sun Mar 27, 2005 2:59 am

does anyone know about a simple phase-shift vst plugin like ultrafunk fxphase? fxphase doesn't seem to be available after they got bought???! anyway, it can be really really simple with just 2 parameters: phase-shift left and right, each 0-360 (or -180 to +180).
thanks for your reply's!

Warmonger · Post by **Warmonger** » Sun Mar 27, 2005 3:05 am

First one that comes to mind: PHA-979

dalor · Post by **dalor** » Sun Mar 27, 2005 3:13 am

thanks Warmonger, looks like it does what i want.

but are there any other freeware options as i really would need the phase-shift option?

kritikon · Post by **kritikon** » Sun Mar 27, 2005 3:25 pm

CPlugs released one a few years back as part of a bundle with a tuner and an analyser. I loaded it up recently after not using it for ages, and it's a good'un. You can shift the phase, rotate the stereo field and widen/narrow it too...sounds very effective considering it's an old plugin.

Haven't got the link I'm afraid, but you should be able to find CPlugs on a search. And it's a freebie.

jouni · Post by **jouni** » Sun Mar 27, 2005 3:35 pm

Sonitus plugins: http://store.yahoo.com/cakewalkdirect/sonitus.html

Funkybot · Post by **Funkybot** » Sun Mar 27, 2005 5:54 pm

It looks like the C-Plugs site is actually down, and they may no longer exist. Anyone who has a copy willing to e-mail me one? Same name I use here only at aol.

dalor · Post by **dalor** » Mon Mar 28, 2005 1:29 pm

it seems that PHA-979 would have to be my choice!

there are still some things that are stopping me to buy it, which are 'why pha-979':

a) takes so much cpu? - for 'simply' shifting a signal? (isnt it just adding or subtracting a signed 16 bit integer-value to a signed 16 bit integer-sample (when used 16-bit input?)?

b) has a sample-delay of x amounts? (how many samples and why? the incoming singal doesn't need any fft, if so why, or whats causing the delay?)?

sorry i am DUMB and NOT a coder, so please be patient if you explain (if anyone does at all)

Aleksey Vaneev · Post by **Aleksey Vaneev** » Mon Mar 28, 2005 4:06 pm

dalor, such phase-shifting requires a bit of math. That's why it's so CPU heavy - in fact, there is a huge filter working behind the scenes.

Sample delay is introduced because PHA-979 uses linear-phase FIR filter.

Debutante · Post by **Debutante** » Tue Mar 29, 2005 11:09 am

...is phase shifting in this sense the same as rotating stereo?...newbie

Torben · Post by **Torben** » Tue Mar 29, 2005 12:59 pm

dalor wrote:does anyone know about a simple phase-shift vst plugin like ultrafunk fxphase? fxphase doesn't seem to be available after they got bought???! anyway, it can be really really simple with just 2 parameters: phase-shift left and right, each 0-360 (or -180 to +180).
thanks for your reply's!

You really got me real curious here. Could you please tell why you need such a plugin?

Torben

Aleksey Vaneev · Post by **Aleksey Vaneev** » Tue Mar 29, 2005 2:13 pm

Debutante, phase-shifting in the sense of phase shifting coloration. With the only difference that it is neutral as all frequencies get shifted for the equal amount.

Funkybot · Post by **Funkybot** » Tue Mar 29, 2005 3:10 pm

Torben, phase shift plug-ins are extremely useful for when you're recording a single instrument with multiple mics and are a bit too lazy to get everything perfectly in phase. For instance a guitar amp mic'd with one in the front on the grill, a mic behind the amp, and a room mic, can be a pain to get in phase properly. A phase shifting plug-in will allow you to start delaying the tracks slightly so that you can knock them all in as close to perfect phase as possible. Same thing with acoustic guitar, or a DI'd bass along with a mic'd bass. It's really just a pain to make sure everything's in phase ahead of time, and having a plug-in that can shift phase from 0 degrees to 180 degrees can be quite handy. Now why not just hit the phase switch in your sequencer? Because if the track isn't exactly 180 degrees out of phase, hitting that button will never quite knock it in phase. Sorry if this doesn't make the most sense, I'm a little hungover this morning.

Torben · Post by **Torben** » Tue Mar 29, 2005 3:24 pm

Funkybot that was what I was thinking. If he just wants to align phase differences coursed by an unequal delay in the signal he should just use a simple delay in one of the channels. That won’t eat much CPU and I am sure there must be a freebee available!

Torben

birrbits · Post by **birrbits** » Tue Mar 29, 2005 3:56 pm

I agree with Torben, a simple delay is a much better approach. Here's why: a 'theoretical' phase shifter will shift all frequencies by a fixed PHASE amount. In terms of DELAY, all of these TIME shifts will be different for each frequency. Now to compensate for multiple mike delays (and not just 180 phase shifts) delaying signals is a more natural solution.

Funkybot · Post by **Funkybot** » Tue Mar 29, 2005 5:17 pm

I've actually been using the single delay approach myself when needed, or just getting in real tight in my sequencer and trying to visually line things up until it sounds right. I've tried the Ultrafunk phase plug but I find I spend more time looking at the meters and adjusting than I do actually listening to any great effect and it's just easier to line up tracks or delay them.

simple phase-shift 0-360° plugin?