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. |