2 eq parameters controlled with 1 knob (x-session)

blastique · Post by **blastique** » Wed Dec 07, 2005 6:37 am

Hi, how are you all?

I've done a search about this but came up with nothing.

What I would like to do is basically assign 2 functions (namely band 1 gain and band 2 gain) to one knob. I want them to "move in the same direction" so to speak, the only different setting to be made would be the min/max values of the two. I realise the obvious, where live tells you that the control is currently assigned, would you like to reassign, etc... Is there any way to force/trick live into doing so anyway?

blastique · Post by **blastique** » Wed Dec 07, 2005 7:01 am

ooo i think i have a solution.
Temporarily changing the channel output of the knob, assign it to the other parameter in live. Then using bome's, create a new translator definition, midi in as the original knob channel/cc, midi out as the "other" knob channel/cc.

The result *should* be live responding to the original assignment, and the translated assignment at the same time...

How exciting. I hope this works... I'll do it after I get some sleep though, it's 7am and UK is officially the country I can't sleep on time in.

Clearscreen · Post by **Clearscreen** » Wed Dec 07, 2005 7:08 am

http://www.ableton.com/forum/viewtopic. ... highlight=

http://www.ableton.com/forum/viewtopic. ... highlight=

http://www.ableton.com/forum/viewtopic. ... highlight=

read these, you can do it using midiyoke (or something similar) to loop the controller back into live as a remote input.

you don't necessaerily need to use bomes, as midiyoke will let you do the routing inside live using midi tracks set to different midi channels.

blastique · Post by **blastique** » Wed Dec 07, 2005 7:19 am

Thanks for the quick reply clearscreen. D-oh, i guess I don't search very efficiently without sleep...!

I've got midi yoke installed, was using it lots with live 4 as it was limited to 2 remote controls. I used it in conjuntion with midi-ox. I'm essentially splitting the output of the midi device into two (or more if need be) virtual midi ports yeah?

blastique · Post by **blastique** » Wed Dec 07, 2005 7:26 am

Ok i've added a port map to midi yoke, and i've also set up data mapping such that channel 1 from the device is coming out as channel 2 from midi yoke-live doesn't care if the devices are different, it does if they are all occupying the same channel though.

blastique · Post by **blastique** » Wed Dec 07, 2005 7:56 am

success, a beautifully sounding steep-slope low cut eq 4

anybody interested?

Machinate · Post by **Machinate** » Wed Dec 07, 2005 8:43 am

It's a really good idea, Blastique, although I'd rather load up a filter that has a better slope built-in.

So Ableton, how about giving us an adjustable slope in the eq4?

forge · Post by **forge** » Wed Dec 07, 2005 8:44 am

blastique wrote:success, a beautifully sounding steep-slope low cut eq 4

anybody interested?

very..what did you do? I've never used midi-yoke...seems alot of people do though!

Clearscreen · Post by **Clearscreen** » Wed Dec 07, 2005 8:45 am

good to hear it worked out for you blastique. good to know it all made sense to someone....

definitely interested to see what you did, can always use better filtering!

blastique · Post by **blastique** » Wed Dec 07, 2005 9:39 am

oh boy, it's like a breath of fresh air once again just like the move from the resource hog n weird sounding eq3 on to eq4

Alright, tools you need:-

MIDI-OX
Midi Yoke

In Midi-ox, under Options->Devices, i selected my Input Port as EV-XS USB (that is my x-session) and my Output Port as Midi Yoke 1 & 2

In the same window, under port mapping, I have deleted all channels except 11 for Midi Yoke 1, and all except 12 for Midi Yoke 2

I then created a data map (Options->Data Mapping), selected "Turn Map On after Ok"

clicked insert. On the next window, when input matches, I selected ch1
output to ch11 (keeping everything else as it is)
I have selected "Pass original value on (clone)" I'm not sure if that's necessary but in my sleep deprived state, it was amongst others that got this whole thing working, so, what the hell.

i then clicked insert again, this time sending from ch1 to ch12, without selecting clone.

Clicked ok, tested a knob, and everything i was turning/pushing was routing to midi yoke 1 ch11, and midi yoke 2 ch12.

I split to seperate yokes to aid in the assigning process, disabling/enabling as each parameter is given an assignment. We don't want to confuse live now do we???

Now, on to the eq section.

I loaded up an EQ 4

The settings are as follows:-

Band 1
Freq: 181Hz
Gain: 0
Q: 11.1

Band 2
Freq: 181Hz
Gain: 0
Q: 0.98

Band 3
Freq: 40Hz
Gain: 0
Q: 0.75

Band 4
Freq: 3.00 kHz
Gain: 0
Q: 4.64

I've assigned Band 1's Gain to the actual x-session input (which is on channel 1)
Band 2's Gain to Midi yoke 1's ch11, and Band 3's Gain to Midi yoke 2's ch12.

The Result, an interesting sounding steep-sloped shelf that has a little swell around 80hz as the bass is cut, but the cut appears to be very effective.

Let me know how you guys go.

blastique · Post by **blastique** » Wed Dec 07, 2005 9:46 am

oh, this is effectively just for controlling bass below 180hz and treble above 3k, I wish the blasted x-session had 3 knobs but it doesn't, so this is how i'm workin with 2!!

I take care of my mid-range with the hpf of the autofilter, without the modulation.

Is it just me, or does the auto-filter with the modulation effect disabled use less resources than eq4 set-up in a hpf manner (not that how it's set up affects anything)?

forge · Post by **forge** » Wed Dec 07, 2005 10:50 am

question: one use for this I've wished for in the past is if you have a send set to pre fade and you want to have the main fader drop as the send goes up

could this be done with midi yoke? so I basically want to have to controls go in the opposite direction ONLY when the send is touched - so I DONT want the send to go up if I pull the fader down.

Can it be done that specifically? bearing in mind the main fader probably wont be all the way up at 127 when the send is at zero.

Clearscreen · Post by **Clearscreen** » Thu Dec 08, 2005 1:02 am

if i ran two eq4's as steep low pass filters in serial (ie one after another..) and controlled the frequency on both with one knob does that make it a 24db resonant filter? would 4 in a row be a 48db filter? would 8 be (other than insane) a 96db filter?

hmmmm....

Sinjin · Post by **Sinjin** » Thu Dec 08, 2005 12:21 pm

holy mackerel...its too GD early to be reading this..

but as an x-session user with similar wants, i guess im gonna have to start loading progs up and try it..

groan

why do i do this to myself?

blastique · Post by **blastique** » Thu Dec 08, 2005 12:32 pm

Clearscreen wrote:if i ran two eq4's as steep low pass filters in serial (ie one after another..) and controlled the frequency on both with one knob does that make it a 24db resonant filter? would 4 in a row be a 48db filter? would 8 be (other than insane) a 96db filter?

hmmmm....

low pass or do you mean low shelf?

I'm no expert, but I don't think combining several of the same slopes would cause the slope to get steeper, rather you would be cutting more at the same frequency points with less movement of the knob. ie with a low shelf that has a 12db slope, by turning your knob all the way to the left, because of live's -15db -> 15db range limit, that would optimally cause a 15db drop at that range. Combining 2 eq4s doing the same thing, controlled by the same knob *should* knock off 30db when you turn all the way. While that's a fair bit to cut, I wouldn't do it because the slope would still be pretty tame and the whole point is to get a steep steep slope carving out a nice chunk of the low end with ease.

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