obspy.signal.freqattributes.log_spaced_filterbank_matrix

log_spaced_filterbank_matrix(p, n, fs, w)

Matrix for a log-spaced filterbank.

Computes a matrix containing the filterbank amplitudes for a log-spaced filterbank.

Parameters

• p – Number of filters in filterbank.

• n – Length of fft.

• fs – Sampling frequency in Hz.

• w – Window function.

Returns

xx, yy, zz - Matrix containing the filterbank amplitudes, Lowest fft bin with a non-zero coefficient, Highest fft bin with a non-zero coefficient.