nnAudio.librosa_functions.fft_frequencies¶
- nnAudio.librosa_functions.fft_frequencies(sr=22050, n_fft=2048)¶
Alternative implementation of np.fft.fftfreq :param sr: Audio sampling rate :type sr: number > 0 [scalar] :param n_fft: FFT window size :type n_fft: int > 0 [scalar]
- Returns
freqs – Frequencies (0, sr/n_fft, 2*sr/n_fft, …, sr/2)
- Return type
np.ndarray [shape=(1 + n_fft/2,)]
Examples
>>> librosa.fft_frequencies(sr=22050, n_fft=16) array([ 0. , 1378.125, 2756.25 , 4134.375, 5512.5 , 6890.625, 8268.75 , 9646.875, 11025. ])