Utility functions¶

A set of utility functions that are used elsewhere in radiotool

radiotool.utils.equal_power(arr1, arr2)¶: Create an equal power blend of arr1 (fading out) and arr2 (fading in)

radiotool.utils.limiter(arr)¶: Restrict the maximum and minimum values of arr

radiotool.utils.linear(arr1, arr2)¶: Create a linear blend of arr1 (fading out) and arr2 (fading in)

radiotool.utils.log_magnitude_spectrum(frames)¶: Compute the log of the magnitude spectrum of frames

radiotool.utils.magnitude_spectrum(frames)¶: Compute the magnitude spectrum of frames

radiotool.utils.normalize_features(features)¶: Standardizes features array to fall between 0 and 1

radiotool.utils.segment_array(arr, length, overlap=0.5)¶

Segment array into chunks of a specified length, with a specified proportion overlap.

Operates on axis 0.

Parameters:	length (integer) – Length of each segment overlap (float) – Proportion overlap of each frame

radiotool.utils.zero_crossing_first(frames)¶: Finds the first zero crossing in frames

radiotool.utils.zero_crossing_last(frames)¶: Finds the last zero crossing in frames