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adelta
 External 

difference from previous input: i, f, l 
au.delta
 External 

output data on the way the image changes 
deltaclip~
 External 

deltaclip~ limits the change between samples in an incoming signal. deltaclip~ limits the change between samples in an incoming signal. Similar to clip~, but with respect to slope rather than amplitude. Useful for envelope following and lowpass filtering. Typically you will want your minimum slope to be negative and your maximum slope to be positive. 
deltalist
 External 

subtract one list from another 
DeltaT
 Collective 

Graphical interpolating delay/panning tool for arbitrary placed loudspeakers. This is a small collective to enable the user to test delay/panning settings on arbitrary placed loudspeakers really quick.
It consists of a pattrstorage to provide the model and calculation, a small script to add new sets of delay/gain/pattrobjects and a js + jit.gl patch to graphically control the placement of the presets and the interpolation.
A small tutorial will be uploaded in the near future. 
delta~
 External 

Transform a signal into differences between successive samples 
dot.phase>freq~
 Abstraction 

Instantaneous frequency estimation from phase deltas. 
dot.signaccum
 Abstraction 

Accumulates positive vs. negative samesign deltas. 
f0.distance
 External 

calculate delta distance in 1, 2 or 3 dimensions 
f0.distance~
 External 

calculate delta distance in 1, 2 or 3 dimensions 
framedelta~
 External 

compute the phase deviation between successive FFT frames framedelta~ subtracts each of the values of the previous input signal vector from those of the current vector so, when used in the context of a pfft~ patch (where the FFT frame is the vector size) it can be used to compute the phase deviation 
jb.delta
 Abstraction 

calculate difference between successive
values 
list.delta
 Javaclass (mxj) 

outputs a list of length N1 given a list of length N, outputs a list of length N1 whose elements are the difference between successive elements from the input list 
tl.delta
 External 

1st order difference 
tl.delta2
 External 

Calculate 2nd order difference of a series of numbers 
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