← Search

Mathew Shaji Kavalekalam

6 accepted papers

2024

Low Bitrate Loss Resilience Scheme for a Speech Enhancing Neural Codec

ICASSP 2024accepted

Deep neural networks have proven their efficacy in encoding high-quality speech and audio at remarkably low bitrates, while also demonstrating superior performance in audio packet loss concealment (PLC) compared to traditional methods. Although ultra low-bitrate speech and audio codecs may appear le…

Cited by 0SourceScholar
2019

Hearing Aid-controlled Beamformer for Binaural Speech Enhancement Using a Model-based Approach

ICASSP 2019accepted

The understanding of speech from a particular speaker in the presence of other interfering speakers can be severely degraded for a hearing impaired person. Beamforming techniques have been proven to be effective to improve the speech understanding in such scenarios. However, the number of microphone…

Cited by 0SourceScholar
2018

A Study of Noise PSD Estimators for Single Channel Speech Enhancement

ICASSP 2018accepted

The estimation of the noise power spectral density (PSD) forms a critical component of several existing single channel speech enhancement systems. In this paper, we evaluate one new and some of the existing and commonly used noise PSD estimation algorithms in terms of the spectral estimation accurac…

Cited by 0SourceScholar
2018

Model-Based Noise PSD Estimation from Speech in Non-Stationary Noise

ICASSP 2018accepted

Most speech enhancement algorithms need an estimate of the noise power spectral density (PSD) to work. In this paper, we introduce a model-based framework for doing noise PSD estimation. The proposed framework allows us to include prior spectral information about the speech and noise sources, can be…

Cited by 0SourceScholar
2017

Model based binaural enhancement of voiced and unvoiced speech

ICASSP 2017accepted

This paper deals with the enhancement of speech in presence of non-stationary babble noise. A binaural speech enhancement framework is proposed which takes into account both the voiced and unvoiced speech production model. The usage of this model in enhancement requires the Short term predictor (STP…

Cited by 0SourceScholar
2016

Kalman filter for speech enhancement in cocktail party scenarios using a codebook-based approach

ICASSP 2016accepted

Enhancement of speech in non-stationary background noise is a challenging task, and conventional single channel speech enhancement algorithms have not been able to improve the speech intelligibility in such scenarios. The work proposed in this paper investigates a single channel Kalman filter based…

Cited by 0SourceScholar