The MSP Reference Manual says of deltaclip’s output that “The input signal is sent out, with its change limited by the minimum and maximum slope values”.

Easy to check this: open the deltaclip~ help patch, and change the “zero” number box at the top to the value of -1.

So, bug or feature?

Leigh

PS: I tested this in both Max 4.5 and 4.6, both on OS 10.3.9, and the results are the same.

Also tried with Max 4.6 on OS 10.4.8 – result was the same there too. In addition, I had to remove the delta~ object from the deltaclip~ help patch on that system, because otherwise Max would crash as soon as I started audio processing.

This looks like a bug. if you set the min to -1. it will go to the set
input… probably some c-typic type confusion…

But it will revert to zero if I do big jumps. Set the min to -1. Then
set the input to -1: the output will show it. Then type in -20. The
output will go back to 0. If you slowly move the input to -20. the
output will follow…

I guess this needs a fix, it seems totally broken for negative inputs…

Stefan

–
Stefan Tiedje————x——-
–_____———–|————–
–(_|_ —-|—–|—–()——-
– _|_)—-|—–()————–
———-()——–www.ccmix.com

A workaround for now is (for signals in the range -1 to 1), to offset the input and output of deltaclip~ as such:

[+~ 1] -> [deltaclip~] -> [-~ 1]

This way deltaclip only sees postive values.

Leigh