P6-11: Audio dequantization using instantaneous frequency
Kovanda, Vojtěch*, Rajmic, Pavel
Subjects (starting with primary): Noise reduction
Presented in Poster Session 6
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 the 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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