Analog Heat Mk2 Trigger Filter/Envelope

ok so i’m trying to trigger the filter or envelope via a kick drum or Midi (usb).
I do this with Abletons filter, where you side chain a kick to trigger the filter. Is this possible with the Heat? I don’t have CV stuff

thanks

Yes, you can use the base and width settings of the envelope to tune into the kick to trigger the envelope, which you can obviously then route to the filter via the env knob on the filter page. This is where the MK2 is helpful, as the graphical display will show you when you’ve got it tuned right.
Don’t ask me about CV with it, I’ve never tried it.

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7.4 Envelope Follower Page 1 and 7.5 Envelope Follower Page 2 explains it, but in short, yes the envelope follower has a filter where you can control what frequencies it responds to

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ok thanks for the responses , so for example lets say i have a sample looping going through the Heat but i want a kick drum to trigger the filter , how would i do this ? do i need to route the kick drum into the control input? or can i send a midi message to trigger it?

You don’t need to do either.

The envelope follower works on the audio signal you are sending to the Heat

so how do i trigger the envelope to a pattern that i can sequence?

I don’t want to filter a kick drum, i want to be able to trigger the envelope or filter via an external signal. Similar to how you would trigger a compressor with a kick drum to make a sample compress , (side chain) .

This can be done in multiple ways.

First way, is to use the envelope follower. This can be used even if you only have the signal that you are routing thought the Heat (i.e. you can’t send the bass drum by itself to CV). If would be best if you read 7.4 and 7.5 in the manual, else I will just repeat everything.

Second way to do it, if you also have your bass drum available seperate from your main signal - plug that into one of the CV ports, go to Settings, Modulation, down to the CV port you used, make sure it is set to Filter Freq.

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Mate can’t thank you enough! thought it was me not explaining myself. i’ll go give it a try and let you know. Thanks again !

No unfortunately it didn’t work.
I’ve googled it to death and have seen people saying there isn’t a dedicated external trigger? I’ve seen/read about triggering the filter via the envelope follower but this isn’t what i want it to do. For example the Akai MFC42 could be triggered via midi so you could send it a midi message to trigger the filter.

Ive put a kick drum into the ‘control in’ and tried all the different configs, Foot-switch worked and i could turn the bypass on/off every time the kick was played , but i still can’t get the envelope to trigger. On the CV setting there isn’t any movement when the kick is played?

When you use the env follower have you changed the threshold? Can you see a little icon in the top right corner blink when in the env menu? If you see a steady beat there, turn the mode knob counter clockwise to enable the AD envelope. That should be triggered every time it blinks. The value in the AD mode parameter is the envelope amount. Then go to the second page and change destination 1 to filter freq. And add depth. It can be a bit confusing at first since you have two “env amount” values. One for the envelope it self, and one for the modulation amount you want.

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The first thing that doesn’t seem to work for me which is the problem , is when i feed a kick into Control In (A), set it up to modulate whatever, i don’t see the trigger icon flash at all, so is it to do with the control in? can the heat receive a kick drum to trigger ?

YES!!! got it, Set it to Footswitch and ENV Trigger, put the Depth up and it works!!! Great.
Thank you for baring with me.

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Ha. I haven’t done it. i thought i had. i don’t think its possible, i’ve read a few forum posts that try to figure it out but no one has. Its odd because you can use a foot switch to turn the Heat off and on but there’s no way i’ve found that will trigger the filter via an external source. Whats ever stranger is using a CV signal going into the control will trigger the Filter which is exactly what i want , but then none of the envelope controls work, so you can’t adjust the attack decay etc. seams like a big flaw in the unit

Have you tried using CONTROL IN A set to CV (not FOOTSW)?

  • Settings => MODULATION => CV IN A : set to Filter Freq, and make sure to set the DEPTH

  • Make sure your bass drum is running and connected to CV A, then Settings => CONTROL IN => CONTROL IN A => select CV (not FOOTSW). There will be a little meter in lower left corner, it should move every time your bass drum kicks. It will also show a percentage - this is indicating the signal ‘strength’ as percentage of CV MAX LEVEL. If it is very low (like 5%) turn down the CV MAX LEVEL parameter, until you get a decent reading (say 50% or more).

Then go back and adjust DEPTH to taste.

In this case I think it definitely won’t use Attack, Release parameters on ENV page (as we not using Envelope Follower). ‘Attack’ and ‘release’ should mirror that of bass drum (or whatever signal) coming in.

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OK so yes that works, brilliant . The problem i’m having now is the CC meter in the control mode page only registers the kick at 1%, so i have to lower the CV MAX LEVEL down to 0.5 which gives me 38% . How would i get the kick (or any sound i use to trigger ) to give a higher percentage? is it just a case of volume? thanks.

Actually it doesn’t work that well, the percentage stays at around 30% and never drops, So the filter sounds like its always triggered . So could be to do with the sound used? i’ve tried it with Abletons CV trigger tool and it works perfectly.