Filter¶

class acoular.tprocess.Filter¶

Bases: TimeOut

Abstract base class for IIR filters based on scipy lfilter implements a filter with coefficients that may be changed during processing.

Should not be instanciated by itself

source = Instance(SamplesGenerator)¶

Data source; SamplesGenerator or derived object.

sos = Property()¶

Filter coefficients

result(num)¶

Python generator that yields the output block-wise.

Parameters:

numinteger

This parameter defines the size of the blocks to be yielded (i.e. the number of samples per block).

Returns:

Samples in blocks of shape (num, numchannels).

Delivers the bandpass filtered output of source. The last block may be shorter than num.