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arXiv · 2011.12818

Phase retrieval with Bregman divergences: Application to audio signal recovery

Pierre-Hugo Vial·Paul Magron·Thomas Oberlin·Cédric Févotte
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Abstract

Phase retrieval aims to recover a signal from magnitude or power spectra measurements. It is often addressed by considering a minimization problem involving a quadratic cost function. We propose a different formulation based on Bregman divergences, which encompass divergences that are appropriate for audio signal processing applications. We derive a fast gradient algorithm to solve this problem.

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Pierre-Hugo Vial, Paul Magron, Thomas Oberlin, Cédric Févotte. 2020-11-25. Phase retrieval with Bregman divergences: Application to audio signal recovery. https://arxiv.org/abs/2011.12818

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