Module utils 

Functions

calculate_frequencies

Returns the frequency (in Hz) corresponding to each bin of a full (two-sided) DFT output.

calculate_one_sided_frequencies

Returns the n_total / 2 + 1 unique positive-frequency bins (0 Hz … Nyquist) for a real-valued DFT of n_total samples at sample_rate Hz.

find_dominant_frequencies

Finds the dominant frequencies in a Power Spectral Density (PSD) by looking for local peaks above a threshold.

generate_sine_wave

Generates a sine wave signal based on the specified frequency, sample rate, and duration.