Filters¶
Filter bank construction¶
dct (n_filters, n_input) |
Discrete cosine transform (DCT type-III) basis. |
mel (sr, n_fft[, n_mels, fmin, fmax, htk]) |
Create a Filterbank matrix to combine FFT bins into Mel-frequency bins |
chroma (sr, n_fft[, n_chroma, A440, ctroct, …]) |
Create a Filterbank matrix to convert STFT to chroma |
constant_q (sr[, fmin, n_bins, …]) |
Construct a constant-Q basis. |
Miscellaneous¶
constant_q_lengths (sr, fmin[, n_bins, …]) |
Return length of each filter in a constant-Q basis. |
cq_to_chroma (n_input[, bins_per_octave, …]) |
Convert a Constant-Q basis to Chroma. |
window_bandwidth (window[, default]) |
Get the bandwidth of a window function. |
Deprecated¶
logfrequency (sr, n_fft[, n_bins, …]) |
Approximate a constant-Q filter bank for a fixed-window STFT. |