Audio as gate input

I'm wondering if there is a way to convert the audio signal so I can use it as a gate input for an ADSR filter. I'd like to do this so I can use a mixer to add different negative values to different gates so I can trigger different voices depending on how loud the audio is. It would be something like this.

Audio Signal + (-10) -> gateA
Audio Signal + (-20) -> gateB
Audio Signal + (-40) -> gateC

This way it would only trigger the gate when the signal is > 0. Problem being I can't plug my audio to the gate in on my envelope. Suggestions?

 

have you tried the a-to-e module? it turns audio signals to events. you might need to process the audio a little first to prevent multiple triggering each time the waveform goes up and down.

 

I've just been messing around with the a to e. I'm not sure what sort of processing I should do though because I mostly get a lot of weird retriggers.

 

i think basically what you need is an envelope follower, to turn the constantly varying audio into a signal that just traces the general amplitude changes. you could try a low pass filter with a really low setting, but that might make the triggering a little sluggish.

maybe a hold envelope after the a-to-e would do it?

 

here is an Audio to Gate Macro:

sowari

 

yes it works with low frequencies (a few Hz).But there are several problems with primary level because of multiple events (look at an eventwatcher). You need an envelope follower as metioned before.
A good solution would be in core possible but it is not trivial and depends on the application.

ciao herw

 

well, i don't have one made in Core :lol:

so here is one taken from Analogic Filter Box

it does have an Envelope Follower

sowari

 

yes better.
I don't know whether the thread starter wants a gate signal with highest audio frequencies f.i. to use as an audio switcher or only low frequency events.

ciao herw

 

well I checked out the files you made. Some stuff is confusing, but after reading some other posts, maybe you're over thinking this.

If my knowledge is right, then should work like this. If any signal greater than 0 is running to it, than it should be on. So wouldn't it make sense that any audio running through the mic (if the mic is connected to the gate) should trigger the gate? Doesn't seem like a complex setup is really required.

 

I also just put this together

 

the 2 files i gave you are

1/ a classic Audio to Gate trigger made by NI for Reaktor 3

2/ the Audio to Gate trigger from Analogic Filter Box in the Classics Library.

if you want a reliable trigger, one that triggers when you want and not from some hiss on the Microphone, then you need the above structures. these were made especially for Audio to Gate triggering and are based on Hardware versions.

i have to be honest, but your structure would not be very reliable or predictable. in fact i have just tried it, and there are some artefacts happening that are causing glitches.

if you have some questions about the structures that i uploaded, then please ask

sowari

 

ok, here's some more questions completely disregarding the other gates. I just want to test some theory things. Is there anyway to convert my incoming audio signal to a constant number? So let's say ANY audio signal over a threshold amplitude is automatically sent as 50.

 

well I'm getting closer, and I'm not sure how frustrated you are with me, but here's something cool I made.

 

sorry dude but there are just loads of artefacts doing it this way, you are not getting a clean gate so this is just adding dirt to the the Oscillator.



sowari

 

if you want to have a look at an Ensemble where an Audio Signal triggers a Synth, have a look at HaseLine II v2.0 by Dieter Zobel in the User Library:

http://www.nativeinstruments.de/index.php?id=userlibrary&type=0&ulbr=1&plview=detail&patchid=2560

sowari

 

so is it possible to create this condition?

If E > .01 then send .01
If E < .01 then send 0

 

if you use the Compare/Equal and a bit of maths.

sowari

 

fwiw,

here is a very simple Audio to Gate trigger, see pic:

sowari

 

these are awesome. Thanks for answering all my questions!

 

Here's another one, from my Micro Synthesiser upload. I assembled it from bits and pieces found here. A major part is from the GSynth2 ensemble. I put it into your somegatestuff ensemble for easy testing (for fun I connected the envelope follower to oscillator amplitude as well).

May be overly complicated for your goals.