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This repository conatins TSM using Griffin Lim's iterative algorithm

This algorithm iteratively estimates the phase spectra of MSTFTM
Supports several initialization methods: 'zero_phase', 'gaussian', 'sola'

How to use:

Check out 'demo_selective.ipynb' for use
lsee_tsm_selective() function:
    initial: ['zero_phase', 'gaussian', 'sola'] initialization method
    frame_ranges:[list] list of tuples that contain (start, end) frame indices 
    rate_ranges: [list] list of rates (0.5 - 2)

Reference:

Roucos, Salim, and Alexander Wilgus. "High quality time-scale modification for speech." ICASSP 1985.
Griffin, Daniel, and Jae Lim. "Signal estimation from modified short-time Fourier transform." IEEE TSP 1984.

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