2025/10/19 by Vojtěch Kovanda, Kovanda, Vojtěch, Pavel Rajmic +1
Computer Science · #eess.AS
paper · pdf · doi:10.48550/arxiv.2510.16813
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.