aspcol.soundfieldcontrol.spatial_cov_freq

aspcol.soundfieldcontrol.spatial_cov_freq(rir_freq)

Calculates spatial covariance matrices from frequency domain room impulse responses

Parameters:

rir_freq (ndarray of shape (num_freq, num_sources, num_mics)) – complex transfer functions from the sources to the microphones

Returns:

spatial_cov – spatial covariance matrix calculated directly from the room impulse responses

Return type:

ndarray of shape (num_freq, num_sources, num_sources)

Notes

The resulting spatial covariance matrix is only guaranteed to represent the true spatial covariance matrix at the microphone points. To represent the spatial covariance matrix taken over a continuous region, the microphone points must both be densely and evenly spaced.