Long Period Envelope Generator Mk II
In order to create generative patches that evolves over time, it is often useful to have an envelope spanning several seconds or minutes. This is an evolution of an earlier design that I hope is a little more user friendly. Like the original, it is a single module producing a one stage envelope which can be combined to create multistage and sequential envelopes and supports looping. Each module has two time ranges, 0-5 seconds and 0-90 seconds. The start and end values of the ramp can be adjusted. It has a gate input for start and reset and outputs for the envelope value, and percentage complete. It also has gate outputs for running and done. The chain and loop inputs and chain output are used to connect multiple units and to enable looping. It displays the time in seconds and has a meter showing the current output value. Note that connecting both the chain input and loop input is not currently supported, so a chain can only loop to the first unit in the chain.
The demo file has a number of possible configuration examples.
The timing on this is a bit tricky so bugs are certainly possible. A reset after connecting modules together is necessary to ensure the modules are properly initialized. Pleas let me know if you encounter issues.
I/O
| Input |
Signal Range |
Notes |
| loop |
poly |
connect the chain output of the last unit to this input for a loop |
| chain |
poly |
connect the chain output of the previous unit for chained operation |
| r |
0 to 1 gate |
reset input |
| st |
0 to 1 gate |
start input - starts the envelope |
| Output |
Signal Range |
Notes |
| chain |
poly |
connect to following unit for chained operation |
| done |
0 to 1 gate |
goes high when the envelope has finished |
| % |
0 to 1 |
percentage of total time completed |
| run |
0 to 1 gate |
goes high while the envelope is running |
| out |
0 to 1 |
mod signal output - connect to the start knob of the following module for multi-module envelopes |
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Controls
| Control |
Function |
Notes |
| start |
envelope start value |
For multi-stage envelopes modulate with the out from the previous unit |
| end |
envelope end value |
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| time |
envelope time |
0 to 90 seconds on slow and 0 to 5 seconds on fast |
| fast |
changes time range |
slow and fast maximums can be adjusted internally |
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Displays
| Meter |
Displays |
Notes |
| time |
displays module time |
rounded to hundredths. |
Version History
Demos
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