Author Topic: Antiphase....?  (Read 8600 times)

tatsumi

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Antiphase....?
« on: February 25, 2016, 01:00:22 am »
Hi everyone :)

Just wondering if anybody has good advice on how to control antiphasing in your production, or even just more information on exactly what it is and why it exists. I've been searching the internet before I asked here, and I've only found a few sources that give some good information on it. Would love to hear if anybody else has experience with it and how to deal with it in your own work.

Cheers :)
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Schematic

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Re: Antiphase....?
« Reply #1 on: February 25, 2016, 04:37:21 am »
Antiphase generally refers to phase coherence between the left and right channels. If they're fully in-phase then you essentially have a mono signal, if they're full out of phase (or 180 degrees out of phase) that is the same thing as anti-phase, and the two signals would cancel if summed to mono.

Stereo works by having phase differences between the two channels, mainly because the contain DIFFERENT instruments or elements so they cannot be be perfectly in phase. These are typically small differences though, 0-45 degrees of phase shift, maybe up to 90 degrees, that's what gives your width and stereo image, but when things get closer to full antiphase it A) becomes uncomfortable to listen to, and B) largely disappears if listened to on a mono system.

Best way to keep it under control while still maintaining a nice stereo image is to keep your low end mostly mono, as well as your big transients like kicks and snares, and pan different elements of to the sides instead of artificially 'widening' one element with delays/doublers.
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FarleyCZ

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Re: Antiphase....?
« Reply #2 on: February 25, 2016, 06:50:08 am »
Schematic said it all.
as well as your big transients like kicks and snares, and pan different elements of to the sides instead of artificially 'widening' one element with delays/doublers.
This is really important. Lot of people, when feeling their track are not wide enough, conclude they need to use sh**load of stereo wideners. ...not even considering panning. Panning is much better, because you'll make your track much more interesting and phase canceling is not an issue at all. It just takes more figuring out to make it somehow nicely balanced. But it's worth it.
« Last Edit: February 25, 2016, 06:57:36 am by FarleyCZ »
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manducator

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Re: Antiphase....?
« Reply #3 on: February 25, 2016, 07:34:50 am »
Here are 3 nice videos about phase:

https://www.youtube.com/watch?v=_N0ER4A73QE

https://www.youtube.com/watch?v=W0y8RTweE7c

https://www.youtube.com/watch?v=bWB5PSoV2I0

Although the first video explains it by means of recording mics, it's not limited to that stage. phasing or phase problems can occur when you doubling sounds and pan them, or in the mixing stage (overlap of bass and kick, for example).
« Last Edit: February 25, 2016, 07:37:01 am by manducator »

tatsumi

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Re: Antiphase....?
« Reply #4 on: February 25, 2016, 04:04:49 pm »
this was all SUPER helpful. thanks guys!
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ShawOfficial

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Re: Antiphase....?
« Reply #5 on: March 01, 2016, 06:01:06 pm »
Just a quick fix for correlation.
But this involves Izotope Ozone
I don't know if 5 has this but 6 does.
You just load up the ozone imager and go to options and there will be something like prevent antiphase by width.But this will only help if you're just out of phase.
If you're too much out of phase,this won't work.
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