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arXiv · 2510.16813

Audio dequantization using instantaneous frequency

Vojtěch Kovanda·Pavel Rajmic
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Abstract

We present a dequantization method that employs a phase-aware regularizer, originally successfully applied in an audio inpainting problem. The method promotes a temporal continuity of sinusoidal components in time-frequency representation of the audio signal, and avoids energy loss artifacts commonly encountered with l1-based regularization approaches. The proposed method is called the Phase-Aware Audio Dequantizer (PHADQ). The method is evaluated against the state-of-the-art using the SDR and PEMO-Q ODG objective metrics, and a~subjective MUSHRA-like test.

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BibTeXRIS

Vojtěch Kovanda, Pavel Rajmic. 2025-10-19. Audio dequantization using instantaneous frequency. https://arxiv.org/abs/2510.16813

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