pyFDN.td.AbsoluteValue

class pyFDN.td.AbsoluteValue(channels)

Stateless memoryless nonlinearity y[n, c] = |x[n, c]|.

The one non-linear operator in the set: it has no transfer function and no frequency-domain counterpart, so a graph containing it can only be rendered in the time domain. Useful as a rectifier inside a loop (distortion, envelope-style feedback) and as the simplest way to test that the block engine stays sample-exact when superposition no longer holds – note that a non-linear operator makes the render depend on the input level.

__init__(channels)

Methods

__init__(channels)
filter(block)	Filter one block and advance internal state.
process(signal, *[, squeeze])	Filter a whole signal in one call, from the current state.
reset()	Clear internal state (no-op for stateless operators).

Attributes

in_channels
out_channels

filter(block)

Filter one block and advance internal state.

Return type:

ndarray