Envelope reset

yir · Post by **yir** » Mon Mar 01, 2010 7:03 pm

Hello,

First post in this fourm....

These are just two of probably many questions!!! I'll have within the next few months since:

I finally got an OASYS 76 last week (Is in brand new condition and had all the options installed)!!!!

Needless to say that I'm a very happy person right now (new TOY!!!).

These are my two simple questions...

1) Is there any way to reset the the envelopes (EG 1-4) with a note on message (like the amp EG). I just can';t find a way. It works ok with LFO's, etc...

2) Does anyone know what is the time equivalent (ms) when the amp EG attack time is set to 0.

Any help would be appreciated,

Thanks very much,

YIR

Daz · Post by **Daz** » Mon Mar 01, 2010 10:42 pm

Congrats on your new Oasys --- a fine creative tool.

A1) All the EG's trigger on note-on automatically, you have to make an effort to stop them from doing that

A2) 0.667 ms according to the manual.

Daz,

yir · Post by **yir** » Tue Mar 02, 2010 1:48 pm

Daz wrote:Congrats on your new Oasys --- a fine creative tool.

Thank you very much!!!

Daz wrote: A1) All the EG's trigger on note-on automatically, you have to make an effort to stop them from doing that

Yep, found my problem. The legato switch was on!!!.

Now for another question:
Is there a way to re-trigger the envelope only after the attack portion has passed? That is, if I play one note and then play another one while the EG is still in the attack portion of the former note then the envelope would not re-trigger. On the other hand, if the attack time has passed when the second note is triggered then the EG will re-start...

Daz wrote:A2) 0.667 ms according to the manual.

Daz,

Sorry!!!, I missed the paragraph on the AL1 EG's that says they are identical to the HD1 EG's (it is a big manual you know

).

These questions arrived because I'm trying to recreate my Nord Lead 2x sounds. For some reason the attack times (at zero setting) of the Nord seems to be faster!!! (I'm not really sure but it seems that way). Also, I can't seem to match the rate of increase (tried all possible curves from linear to exponential !!!) of the attack portion.

Then again, I just had this keyboard for only a few days so I'm still discovering things!!

In any case, thanks very much for the response

YIR

danatkorg · Post by **danatkorg** » Wed Mar 03, 2010 11:51 pm

yir wrote: Now for another question:
Is there a way to re-trigger the envelope only after the attack portion has passed? That is, if I play one note and then play another one while the EG is still in the attack portion of the former note then the envelope would not re-trigger. On the other hand, if the attack time has passed when the second note is triggered then the EG will re-start...

Is this for Mono/Mono legato playing?
You can control this manually, by choosing to play legato or staccato. But, I don't think that there is a way to do it automatically.

yir wrote:
These questions arrived because I'm trying to recreate my Nord Lead 2x sounds. For some reason the attack times (at zero setting) of the Nord seems to be faster!!! (I'm not really sure but it seems that way). Also, I can't seem to match the rate of increase (tried all possible curves from linear to exponential !!!) of the attack portion.

I doubt that the Nord's envelopes would be faster, although I guess that's always possible. I'm also not sure if faster envelopes would actually be perceivable; the OASYS envelopes are really extremely fast.

The OASYS is a complicated synth. Since you are just starting to use it, it make take some time to understand all of the modulation patents which might be affecting either the envelope itself, or the parameter being modulated by the envelope.

Also, my general impression is that usually the "attack" of a sound is defined by both the attack and the decay.

What are you modulating with the envelope? What is the sound that you're trying to re-create?

Kayemef · Post by **Kayemef** » Sun Mar 07, 2010 5:42 am

I uploaded some charts in another topic
http://www.korgforums.com/support/oasys/graphs.zip

With these you'll be able to translate the relative values used in EG programming to absolute values... that way you might get a better understanding of how these EGs work. I'm surprised to hear you say that you feel that the Nord EG are "faster", at minimum values, the transitions between different states of an EG on the Oasys can be shorter than a millisecond.

If you are planning on having a rather long attack and you feel that the curve could be more "exponential" you could try cheating it by using a stereo expander in the insert effects section. That might stretch the dynamic range between the softer and higher amplitudes and give the impression that the overall attack portion of the sound is "faster". Actually it will be the same time lenght, but it will cover a larger range of amplitude. Its worth a try - you might have to do a little bit of tweaking to get it rigth.

Good luck !