activity
20152026
most citedType I and Type II Bayesian Methods for Sparse Signal Recovery using Scale Mixtures

144 citations · 165 across the 14 of their papers we have counts for

collaborators

18 papers

cs.SD2026

Cloud-Boosted Low-Compute Multi-Channel Speech Enhancement

Xulin Fan, Juan Azcarreta, Ashutosh Pandey +5

Low-latency, low-compute speech enhancement is essential for wearable devices with real-time communication requirements, but strict computational constraints significantly limit on…

cs.SD2026

Masked Autoencoders as Universal Speech Enhancer

Rajalaxmi Rajagopalan, Ritwik Giri, Zhiqiang Tang +1

Supervised speech enhancement methods have been very successful. However, in practical scenarios, there is a lack of clean speech, and self-supervised learning-based (SSL) speech e…

eess.AS2024

Real-time Stereo Speech Enhancement with Spatial-Cue Preservation based on Dual-Path Structure

Masahito Togami, Jean-Marc Valin, Karim Helwani +3

We introduce a real-time, multichannel speech enhancement algorithm which maintains the spatial cues of stereo recordings including two speech sources. Recognizing that each source…

eess.AS2023★ 2 cited

A Framework for Unified Real-time Personalized and Non-Personalized Speech Enhancement

Zhepei Wang, Ritwik Giri, Devansh Shah +3

In this study, we present an approach to train a single speech enhancement network that can perform both personalized and non-personalized speech enhancement. This is achieved by i…

eess.AS2022★ 7 cited

Semi-supervised Time Domain Target Speaker Extraction with Attention

Zhepei Wang, Ritwik Giri, Shrikant Venkataramani +5

In this work, we propose Exformer, a time-domain architecture for target speaker extraction. It consists of a pre-trained speaker embedder network and a separator network based on…

eess.AS2022★ 2 cited

To Dereverb Or Not to Dereverb? Perceptual Studies On Real-Time Dereverberation Targets

Jean-Marc Valin, Ritwik Giri, Shrikant Venkataramani +2

In real life, room effect, also known as room reverberation, and the present background noise degrade the quality of speech. Recently, deep learning-based speech enhancement approa…

eess.AS2022

Improved singing voice separation with chromagram-based pitch-aware remixing

Siyuan Yuan, Zhepei Wang, Umut Isik +4

Singing voice separation aims to separate music into vocals and accompaniment components. One of the major constraints for the task is the limited amount of training data with sepa…

eess.AS2021

Personalized PercepNet: Real-time, Low-complexity Target Voice Separation and Enhancement

Ritwik Giri, Shrikant Venkataramani, Jean-Marc Valin +2

The presence of multiple talkers in the surrounding environment poses a difficult challenge for real-time speech communication systems considering the constraints on network size a…

eess.AS2021★ 1 cited

Semi-Supervised Singing Voice Separation with Noisy Self-Training

Zhepei Wang, Ritwik Giri, Umut Isik +2

Recent progress in singing voice separation has primarily focused on supervised deep learning methods. However, the scarcity of ground-truth data with clean musical sources has bee…

eess.AS2021

Enhancing into the codec: Noise Robust Speech Coding with Vector-Quantized Autoencoders

Jonah Casebeer, Vinjai Vale, Umut Isik +3

Audio codecs based on discretized neural autoencoders have recently been developed and shown to provide significantly higher compression levels for comparable quality speech output…

eess.AS2020★ 1 cited

A Perceptually-Motivated Approach for Low-Complexity, Real-Time Enhancement of Fullband Speech

Jean-Marc Valin, Umut Isik, Neerad Phansalkar +3

Over the past few years, speech enhancement methods based on deep learning have greatly surpassed traditional methods based on spectral subtraction and spectral estimation. Many of…

eess.AS2020★ 6 cited

PoCoNet: Better Speech Enhancement with Frequency-Positional Embeddings, Semi-Supervised Conversational Data, and Biased Loss

Umut Isik, Ritwik Giri, Neerad Phansalkar +3

Neural network applications generally benefit from larger-sized models, but for current speech enhancement models, larger scale networks often suffer from decreased robustness to t…

cs.CL2020

From Speech-to-Speech Translation to Automatic Dubbing

Marcello Federico, Robert Enyedi, Roberto Barra-Chicote +4

We present enhancements to a speech-to-speech translation pipeline in order to perform automatic dubbing. Our architecture features neural machine translation generating output of…

cs.SD2020

Channel-Attention Dense U-Net for Multichannel Speech Enhancement

Bahareh Tolooshams, Ritwik Giri, Andrew H. Song +2

Supervised deep learning has gained significant attention for speech enhancement recently. The state-of-the-art deep learning methods perform the task by learning a ratio/binary ma…

cs.CV2017★ 2 cited

Relevance Subject Machine: A Novel Person Re-identification Framework

Igor Fedorov, Ritwik Giri, Bhaskar D. Rao +1

We propose a novel method called the Relevance Subject Machine (RSM) to solve the person re-identification (re-id) problem. RSM falls under the category of Bayesian sparse recovery…

cs.CV2016

Robust Bayesian Method for Simultaneous Block Sparse Signal Recovery with Applications to Face Recognition

Igor Fedorov, Ritwik Giri, Bhaskar D. Rao +1

In this paper, we present a novel Bayesian approach to recover simultaneously block sparse signals in the presence of outliers. The key advantage of our proposed method is the abil…

stat.ML2016

A Unified Framework for Sparse Non-Negative Least Squares using Multiplicative Updates and the Non-Negative Matrix Factorization Problem

Igor Fedorov, Alican Nalci, Ritwik Giri +3

We study the sparse non-negative least squares (S-NNLS) problem. S-NNLS occurs naturally in a wide variety of applications where an unknown, non-negative quantity must be recovered…

cs.LG2015★ 144 cited

Type I and Type II Bayesian Methods for Sparse Signal Recovery using Scale Mixtures

Ritwik Giri, Bhaskar D. Rao

In this paper, we propose a generalized scale mixture family of distributions, namely the Power Exponential Scale Mixture (PESM) family, to model the sparsity inducing priors curre…