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Comment by heycosmo

An audio encoder.

The resulting format has simple compression parameters and will be optimized for time-stretching/pitch-shifting. The format is really nothing special; it is based on a sinusoids + noise model. The novelty is in the analysis algorithm, which I think identifies sinusoids particularly well, avoiding common difficulties like the Gibbs phenomenon [0], which leads to "smearing" of transients when time-stretching.

[0] https://en.wikipedia.org/wiki/Gibbs_phenomenon

parent heycosmo 5 years ago

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