Thanks for your answer. I have actually created an ADSR just with vline. I attach the patch below ans it is working. The only problem is that is linear, and I would like to implement something similar to yiur solution with slope but now I am confused about how slop works so I need to try to unterstand hiw it works during this weeks.
And you are right, to develope the ADSR with vline was complicated foir me. I spent several hours,

Trying to understand midi keys.pd

A lot of useful information here to explore and try during the next week.
Thanks very much!
Juan

@porres Yes, you are right. I didn´t enter in the pd release patch to see the additional explanation. Thanks very much!

Hi, this is my first post on this forum. Sorry if I am asking about something that has been commented on before.
I tried to use the ADSR envelope in plugdata, but the release stage starts after the attack and decay stages are finished, which is not what I need Because of that, I decided to build my ADSR from scratch, and is working as I want. The only thing I don´t like is that the attack, decay and release stages are linear, directly from the vline object inside my custom subpatch.
How can I add a convex attack stage, and concave decay and release stages? Within my patch, all the different stages are launched with a single vline object. If I apply some exponential law, I am applying it to every stage, and that's not correct.
Could someone help me to find documentation for an ADSR patch where I can see how it has been built?. I tried to open the ADSR object in Plugdata, but it has not been possible.

Thanks very much for your help!!