Envelopes
- Reasonable man
- Posts: 589
- Joined: 14 Jul 2016
This is a usefull Envelopw shape (pyramid) that we can all draw in on grain or Europa. I need this shape for a filter or amp in another synth.
Is there a way of calculating this envelope with old-fashioned adsr ?
I need two approximate calulations
1/ with no release time
2/ with realease time staring at the very peak/halfway point (top of the envelope)
120bpm - 1bar duration
Is it posiible to caclulate this or does anyone have a head for this type of stuff. Thanks.
It should work out like this:
bar_duration [s] = beats_per_bar * 60 [s/min] / bpm [1/min]
attack [ms] = decay [ms] = bar_duration [s]/ 2 * 1000 [ms/s]
sustain = 0
release = 0
bar_duration [s] = beats_per_bar * 60 [s/min] / bpm [1/min]
attack [ms] = decay [ms] = bar_duration [s]/ 2 * 1000 [ms/s]
sustain = 0
release = 0
- Reasonable man
- Posts: 589
- Joined: 14 Jul 2016
Ok thanks again guys. Jam is right there is no sustain or release value on that envelope so i have to sit down and work with that formula.
Yea loque thats a handy workaround alright i have reasnistas sidechain thingy for sending envelopes too .Its only now i realise that alot of envelopes need logarithmic and exponential values that a standard asdr may not have so i have to sit down with charlotte (unfortunatley thats the rack extension ...not a girl ) and try apply jams formula cause i need to learn this stuff in a maths kinda way!
Yea loque thats a handy workaround alright i have reasnistas sidechain thingy for sending envelopes too .Its only now i realise that alot of envelopes need logarithmic and exponential values that a standard asdr may not have so i have to sit down with charlotte (unfortunatley thats the rack extension ...not a girl ) and try apply jams formula cause i need to learn this stuff in a maths kinda way!
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- Posts: 447
- Joined: 10 May 2016
There are 2000ms in one bar at 120bpm so your attack and decay will be 1000ms. Your release should be... 1000ms too I believe and sustain is 0.
http://www.sengpielaudio.com/calculator ... potime.htm
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http://www.sengpielaudio.com/calculator ... potime.htm
Sent from my iPhone using Tapatalk
- Reasonable man
- Posts: 589
- Joined: 14 Jul 2016
Great stuff....and thanks for the linkRandomSkratch wrote: ↑27 Oct 2018There are 2000ms in one bar at 120bpm so your attack and decay will be 1000ms. Your release should be... 1000ms too I believe and sustain is 0.
http://www.sengpielaudio.com/calculator ... potime.htm
Sent from my iPhone using Tapatalk
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