Old 05-30-2014, 09:09 PM   #1
brainwreck
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Default m/s eq in Reaper?

Anyone got a way to do mid/side eq in Reaper without going off to hunt for plugins?

Looking for a plugin that will let me send everything below a given frequency to the middle and and do m/s eq.

How do you setup m/s processing in Reaper?
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Old 05-30-2014, 09:50 PM   #2
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Probably out of my depth here.... Afaik, m/s eq works by sending all common l/r input to center, and all differences to side. This naturally results in most low frequencies (drums, bass) tending to center, but I don't know of a plugin that will do it based on frequency, Here's an article from SoS on m/s eq with Reaper - haven't gotten the sound I want yet, but maybe you'll have better luck
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Old 05-30-2014, 10:04 PM   #3
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Looking for a plugin that will let me send everything below a given frequency to the middle and and do m/s eq.
just to avoid any confusion, M/S, and monoizing the low end are 2 different processes.

for M/S: the JS:Utility/KanakaMSencoder1 is included. (something like MSED is a bit more versitile and is free)

just insert the plugin before 2 eq's. Using the plugin input matrix, Set eq #1 to only take input on pin 1, this is your MID eq. Set eq #2 to only input on pin 2, this is the side eq.

then you need to combine them back together. The KanakaMS5 is the decoder, you can use that, (or MSED), or even some other plugin to mix the signals back together.

For pushing the low end to the middle, you can make the track 6 channel and use

JS:LOSER/3bandsplitter > JS:Utility/chanmix2 > JS:LOSER/3bandjoiner

set the first frequency slider to the freq you want...

on the chanmix2, set the left pan and right pan both to 0, and also set the left and right volume to -6 to compensate for the gain boost in mixing the channels together. the low channel is 1/2, so you don't need to mess with the inputs for that.

(I like to put JS:Stillwell/Width on the 3/4 and 5/6 channels - it's like instant, cheap Ozone-ness )
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Old 05-30-2014, 10:05 PM   #4
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Probably out of my depth here.... Afaik, m/s eq works by sending all common l/r input to center, and all differences to side. This naturally results in most low frequencies (drums, bass) tending to center, but I don't know of a plugin that will do it based on frequency, Here's an article from SoS on m/s eq with Reaper - haven't gotten the sound I want yet, but maybe you'll have better luck
Reading that now. Thanks.

Reaper has an m/s encoder/decoder in the js effects, but I'm not sure how to use it.
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Old 05-30-2014, 10:07 PM   #5
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http://www.toneboosters.com/tb-equalizer/

A cheap EQ that does mid-side. Their EQ is transparent but only 6 bands and is quite simple in its interface.

I have since moved on to FabFilter Pro Q which has a much better GUI and more features.

FabFilter have a video on YouTube on how to set up Mid/Side processing using 2 mics and no plugins in Reaper. This is a per track basis though and does not apply to a whole mix.
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Old 05-30-2014, 11:18 PM   #6
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just to avoid any confusion, M/S, and monoizing the low end are 2 different processes.

for M/S: the JS:Utility/KanakaMSencoder1 is included. (something like MSED is a bit more versitile and is free)

just insert the plugin before 2 eq's. Using the plugin input matrix, Set eq #1 to only take input on pin 1, this is your MID eq. Set eq #2 to only input on pin 2, this is the side eq.

then you need to combine them back together. The KanakaMS5 is the decoder, you can use that, (or MSED), or even some other plugin to mix the signals back together.

For pushing the low end to the middle, you can make the track 6 channel and use

JS:LOSER/3bandsplitter > JS:Utility/chanmix2 > JS:LOSER/3bandjoiner

set the first frequency slider to the freq you want...

on the chanmix2, set the left pan and right pan both to 0, and also set the left and right volume to -6 to compensate for the gain boost in mixing the channels together. the low channel is 1/2, so you don't need to mess with the inputs for that.

(I like to put JS:Stillwell/Width on the 3/4 and 5/6 channels - it's like instant, cheap Ozone-ness )
Thanks for all that. I'll set if I can get this going.
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Old 05-31-2014, 11:42 AM   #7
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James HE, thanks again. I'm not sure that I have my head around it yet, but I got it working.

Hmmmm...there alot of possibilities with this.
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Old 05-31-2014, 11:51 AM   #8
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James HE, thanks again. I'm not sure that I have my head around it yet, but I got it working.

great!

It's good to alias the FX names, "Mid EQ" "Side EQ" - or whatever.

can get very confusing!
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Old 05-31-2014, 12:24 PM   #9
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great!

It's good to alias the FX names, "Mid EQ" "Side EQ" - or whatever.

can get very confusing!
Exactly what I was thinking.

One thing that I'm confused about is why chanmix2 is necessary between the splitter and joiner.

If it was an elephant... Got it.
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Old 05-31-2014, 01:20 PM   #10
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Exactly what I was thinking.

One thing that I'm confused about is why chanmix2 is necessary between the splitter and joiner.

If it was an elephant... Got it.
the chanmix is included in the install, that's why I mentioned it.

I modded the splitter such that it does it automatically. (when enabled) I modded the joiner to be able to solo / mute bands.

I get around to releasing that mod... eventually.
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Old 05-31-2014, 01:35 PM   #11
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How do you setup m/s processing in Reaper?
I do it with a track template (see the attachment).

I hope it's clear what to do... send left side stuff to the "Left" track and right side stuff to the "Right" track, and then you have "Mid" and "Side" tracks to tweak. And it all comes out the "Full Monty" track. Works great for me
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Old 05-31-2014, 03:02 PM   #12
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I hope it's clear what to do...
Thanks. I had to look at it on paper to 'get it'.

https://app.box.com/s/0c0xr0vj5hdj9e52khp4
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Old 05-31-2014, 04:18 PM   #13
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I had not thought before of splitting amp sims by frequency - different sims for low, mids, highs, into same or different cab sims (split or not). It's kind of interesting playing around with this.
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Old 06-03-2014, 01:34 PM   #14
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Thanks. I had to look at it on paper to 'get it'.

https://app.box.com/s/0c0xr0vj5hdj9e52khp4
Nice!
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Old 06-03-2014, 01:39 PM   #15
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I had not thought before of splitting amp sims by frequency - different sims for low, mids, highs, into same or different cab sims (split or not). It's kind of interesting playing around with this.
Slightly off topic but one of Craig Anderton's DIY projects is a distortion box that splits the incoming signal into multiple signals and distorts each set of the frequency bands separately then recombines them.
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Old 06-03-2014, 07:19 PM   #16
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For pushing the low end to the middle...
I think JS: LOSER/stereoEnhancer does the trick. It has 3 sliders:

Width Low (%)
Crossover (Hz)
Width High (%)

Not Mid/Side EQing, but it can set properly the Crossover and restrict Width Low to mono.
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Old 06-04-2014, 01:05 AM   #17
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I think JS: LOSER/stereoEnhancer does the trick. It has 3 sliders:

Width Low (%)
Crossover (Hz)
Width High (%)

Not Mid/Side EQing, but it can set properly the Crossover and restrict Width Low to mono.
Yep, I use this on pretty much every project. If not on my master buss then on my guitar buss.
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Old 06-05-2014, 11:16 AM   #18
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Nice!
I think is why a visual routing interface is appealing to some of us - looking at a diagram of how something works vs. holding the routing scheme in your head while trying to figure out how it works. Diagrams make things click for me much faster than menus and matrixes.
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