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Soumitro Chakrabarty

5 accepted papers

2024

Ultra Low Complexity Deep Learning Based Noise Suppression

ICASSP 2024accepted

This paper introduces an innovative method for reducing the computational complexity of deep neural networks in real-time speech enhancement on resource-constrained devices. The proposed approach utilizes a two-stage processing framework, employing channelwise feature reorientation to reduce the com…

Cited by 0SourceScholar
2021

An Empirical Study of Visual Features for DNN Based Audio-Visual Speech Enhancement in Multi-Talker Environments

ICASSP 2021accepted

Audio-visual speech enhancement (AVSE) methods use both audio and visual features for the task of speech enhancement and the use of visual features has been shown to be particularly effective in multi-speaker scenarios. In the majority of deep neural network (DNN) based AVSE methods, the audio and v…

Cited by 0SourceScholar
2020

Signal-Aware Broadband DOA Estimation Using Attention Mechanisms

ICASSP 2020accepted

We refer to direction-of-arrivals (DOAs) estimation of a user-defined subset of directional (desired) sound sources as signal-aware DOA estimation. Source selection, thereby, can be achieved with time-frequency masks to apply attention to TF bins dominated by desired sources. With deep neural networ…

Cited by 0SourceScholar
2018

Classification vs. Regression in Supervised Learning for Single Channel Speaker Count Estimation

ICASSP 2018accepted

The task of estimating the maximum number of concurrent speakers from single channel mixtures is important for various audio-based applications, such as blind source separation, speaker diarisation, audio surveillance or auditory scene classification. Building upon powerful machine learning methodol…

Cited by 0SourceScholar
2015

A Bayesian approach to spatial filtering and diffuse power estimation for joint dereverberation and noise reduction

ICASSP 2015accepted

A spatial filter, with L linear constraints that are based on instantaneous narrowband direction-of-arrival (DOA) estimates, was recently proposed to obtain a desired spatial response for at most L sound sources. In noisy and reverberant environments, it becomes difficult to get reliable instantaneo…

Cited by 0SourceScholar