Christoffer Kejlstrup

I am making a patch for a school project, where Max registers every time the user has pressed on the keyboard - the feedback is a random piano hit. What I want to do, is to increase the velocity and the release time when the user is typing a lot on the keyboard. When the user is not typing so much, the velocity and release time on the piano hits will be decreased. I'm using the timer object to register the hits on the keyboard, which means if I type a lot, the values are low and if I type less, the values are high.

There might be an easy way to fix this problem, but I'm kinda stuck with this for a some hours now, so I thought someone could help me in here.

I am making a patch for a school project, where Max registers every time the user has pressed on the keyboard - the feedback is a random piano hit. What I want to do, is to increase the velocity and the release time when the user is typing a lot on the keyboard. When the user is not typing so much, the velocity and release time on the piano hits will be decreased. I'm using the timer object to register the hits on the keyboard, which means if I type a lot, the values are low and if I type less, the values are high. 

timer-problem

The way I see it is that you maintain a scrolling queue (first in first out) where a key hit inserts a number and a non key hit inserts a zero. That way you can have a "window" in time of the density of keyboard hits. Simply take the mean of the queue and scale your velocity based on that outcome. The queue I would use is zl.stream. You can experiment with the size of the zl.stream and the rate at which numbers are stored. The tricky bit is not ignoring key presses, so what I've done is use a float object that resets itself to 0. Anyways, here's the patch, I'm sure you can take it from here! Have fun!

Timer-problem