hmc_mir.tsm_tools.tsm_tools

Time Series Modulation

Code is from https://github.com/HMC-MIR/PianoConcertoAccompaniment/blob/main/tsm_tools.ipynb and https://www.mdpi.com/128016

Functions

calc_sum_squared_window(window, hop_length)	Calculates the denominator term for computing synthesis frames.
estimateIF(S, sr, hop_samples)	Estimates the instantaneous frequencies in a STFT matrix.
estimateIF_var(S, sr, timestamps)	Estimates the instantaneous frequencies in an STFT-like matrix when the analysis frames are not evenly spaced.
hann_window(L)	Returns a Hann window of a specified length.
harmonic_percussive_separation(x[, sr, ...])	Performs harmonic-percussive separation on a given audio sample.
invert_stft(S, hop_length, window)	Reconstruct a signal from a modified STFT matrix.
mix_recordings(x1, x2)	Mixes two audio waveforms together.
my_stft(x, N, hop_length, window)	A custom implementation of the STFT that allows for non-integer hop lengths (in samples).
tsm_hybrid(x[, alpha, sr])	Time stretches the input signal using a hybrid method that combines overlap-add and phase vocoding.
tsm_overlap_add(x[, alpha, L])	Time stretches the input signal using the overlap-add method.
tsm_phase_vocoder(x[, alpha, L, sr])	Time stretches the input signal using the phase vocoder method.
tsmvar_hybrid(x, alignment[, sr])	Time stretches the input signal using a hybrid method that combines overlap-add and phase vocoding.
tsmvar_overlap_add(x, alignment[, L, fs])	Time stretches the input signal using the overlap-add method according to a given alignment.
tsmvar_phase_vocoder(x, alignment[, L, fs])	Time stretches the input signal using a phase vocoder according to a given alignment.