UncorrelatedNoiseSource¶

class acoular.sources.UncorrelatedNoiseSource¶

Bases: SamplesGenerator

Class to simulate white or pink noise as uncorrelated signal at each channel.

The output is being generated via the result() generator.

seed = CArray(dtype = uint32, …¶

Array with seeds for random number generator. When left empty, arange(numchannels) + signal.seed will be used.

numchannels = Delegate('mics', 'num_mics')¶

Number of channels in output; is set automatically / depends on used microphone geometry.

mics = Trait(MicGeom,  …¶

MicGeom object that provides the microphone locations.

start_t = Float(0.0, …¶

Start time of the signal in seconds, defaults to 0 s.

start = Float(0.0, …¶

Start time of the data aquisition at microphones in seconds, defaults to 0 s.

numsamples = Delegate('signal')¶

Number of samples is set automatically / depends on signal.

sample_freq = Delegate('signal')¶

Sampling frequency of the signal; is set automatically / depends on signal.

result(num=128)¶

Python generator that yields the output at microphones block-wise.

Parameters:

numinteger, defaults to 128

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).

The last block may be shorter than num.