Hi, I'm currently writing a plugin for a 3d package that imports midi data and converts note on/off and controller data to key frames.
I'm now at the stage where I have all the midi data in my 3d package, and i'm trying to create ADSR envelopes that are triggered with the note on ( attack, deacy, sustain) and off (release) messages, using the 0-127 midi data sored in the controller data for each A D S R controller.
I guess my questions are:
with Attack Decay & Release, are the steps 0-127 an exact measurement of time? or...
are the steps 0-127 a time measurement that changes based on the midi clock BPM?
and are these steps the same on all synths/samplers?
or are they different on each unit / piece of software?
any help on this topic would be greatly appreciated, even a point in the right direction would help
I have searched the far corners of the web 4 an answer 2 this question, but 2 no avail.
ADSR 0-127 midi to time relation?
The values displayed are completely meaningless in terms of time values. Unless the synth's display has things labeled as seconds, milleseconds (ms) etc., you cannot tell what a value from 1-127 means - it's just a reference number. Each individual synth designer can decide on a taper (or curve) for the knob and display settings, so there's really no standardising of it possible.
Hope this is helpful,
cheers,
john bowen
<font size=-1>[ This Message was edited by: johnbowen on 2005-09-13 23:35 ]</font>
Hope this is helpful,
cheers,
john bowen
<font size=-1>[ This Message was edited by: johnbowen on 2005-09-13 23:35 ]</font>
