I have a tune in which i use to the cutoff filter switch alot, but the de volume difference between the not open filter and the open filter is too much. I there a way to counter this? You can use a limiter but I dont want to squash it too much.

if you're automating the cutoff, you could also automate the volume.

there is no way to do this other than a compressor. the volume change should be minimal though. peak level should change very little.

if you're in a specific situation like white noise with normal distribution the volume can be adjusted to maintain a perfect 0db peak level, but every signal will be different.

Depends on the synth, but I would map the cutoff envelope to the amplitude with a negative value.

If your synth doesnt allow you to do this, then you need a better one

Map your Modwheel to the cut off frequency and then map it to amplitude/volume with a negative value. Adjust it until the levels are equal at low and high cut-off.

Source
Modwheel

Destination:
Cut off +, Volume -

What synth is it?
Last edited by Aiynzahev on Mon Mar 26, 2012 1:06 pm; edited 1 time in total

Or Maybe this?

http://www.meldaproduction.com/mautovolume/

isn't that just a compressor specializing in slow envelopes?

no reason to use anything other than a compressor/limiter here. if you aren't clipping anywhere, another limiter won't hurt the characteristics of the sound, just give it a buzz cut, so there's another option!

I don't really get what you do:

a) it's too loud soundwise and sounds terrible - fix this with ADSR for cutoff filter and volume envelope to get the result you want.

What are you using for filtering?

b) peakwise in recording is having overs - then what is already said by others.

If using limiters/compressors in this case you are going to squash it.

the amp modulation and / or compressor should do the job but it can be a bit tricky to tune the settings to not get volume changes at particular settings.

on the same topic, one problem I often run into is the classic volume drop when increasing filter resonance, again you can automate the volume but you can also side-chain a compressor with a low pass filtered version of the signal so that at low resonance values it gets compressed hard but with high res it goes through pretty much untouched.

I use EQuick into The Glue to do this, the advantage of using the EQ to filter the side chain is that I can really tune the side chain signal to get the compressor to respond how I want depending on the frequency content.

actually the "classic volume drop from resonance" is due to negative feedback. all you need to do is increase the gain by the feedback amount.

what you're getting is:

in - out * feedback

let's assume cutoff = infinity

out = in

out - out * feedback

so, to get back to unity, we need to do this:

out + out * feedback

or,

out * (1 + feedback)

ask the author to put a switch or mode in for this. it's ridiculous not to have it.

(also easy to do in an analog circuit. you just use a dual-gang pot and mix one copy of the feedback into the output)

(alternatively you can do more interesting things like adjust the input level to create more focused "saturation" at high res rather than large res peaks. whatever your goal is.)

Thx for the ideas guys I chose the route linking the cutoff and volume with the modwheel works like a charm. It might be the resonance but its hardly on.