Audio dequantization using instantaneous frequency

Fuente: arXiv
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Auteurs principaux: Kovanda, Vojtěch, Rajmic, Pavel
Format: Preprint
Publié: 2025
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author Kovanda, Vojtěch
Rajmic, Pavel
author_facet Kovanda, Vojtěch
Rajmic, Pavel
contents 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 are evaluated against the state-of-the-art using the SDR and PEMO-Q ODG objective metrics, and a~subjective MUSHRA-like test.
format Preprint
id arxiv_https___arxiv_org_abs_2510_16813
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Audio dequantization using instantaneous frequency
Kovanda, Vojtěch
Rajmic, Pavel
Audio and Speech Processing
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 are evaluated against the state-of-the-art using the SDR and PEMO-Q ODG objective metrics, and a~subjective MUSHRA-like test.
title Audio dequantization using instantaneous frequency
topic Audio and Speech Processing
url https://arxiv.org/abs/2510.16813