A5089208132- Speech and Audio Processing
- Advanced Adaptive Filtering Techniques
- Hearing Loss and Rehabilitation
- Speech Recognition and Synthesis
- Direction-of-Arrival Estimation Techniques
- Music and Audio Processing
Gwangju Institute of Science and Technology
2022-2025
A multichannel speech enhancement system usually consists of spatial filters such as adaptive beamformers followed by postfilters, which suppress remaining noise. Accurate estimation the power spectral density (PSD) residual noise is crucial for successful reduction in postfilters. In this paper, we propose a postfilter utilizing proposed posteriori presence probability (SPP) and PSD estimators, are based on both coherence statistical models. We model coherence-based SPP simple function...
Online multi-microphone speech enhancement aims to extract target from multiple noisy inputs by exploiting the spatial information as well spectro-temporal characteristics with low latency. Acoustic parameters such acoustic transfer function and noise covariance matrices (SCMs) should be estimated in a causal manner enable online estimation of clean spectra. In this paper, we propose an improved estimator for SCM, which can parameterized power spectral density (PSD) relative (RTF)....