Search Results for author: Saurabh Kataria

Found 15 papers, 4 papers with code

Time-domain speech super-resolution with GAN based modeling for telephony speaker verification

no code implementations4 Sep 2022 Saurabh Kataria, Jesús Villalba, Laureano Moro-Velázquez, Piotr Żelasko, Najim Dehak

We show that our bandwidth extension leads to phenomena such as a shift of telephone (test) embeddings towards wideband (train) signals, a negative correlation of perceptual quality with downstream performance, and condition-independent score calibration.

Bandwidth Extension Data Augmentation +3

AdvEst: Adversarial Perturbation Estimation to Classify and Detect Adversarial Attacks against Speaker Identification

no code implementations8 Apr 2022 Sonal Joshi, Saurabh Kataria, Jesus Villalba, Najim Dehak

Building on our previous work that used representation learning to classify and detect adversarial attacks, we propose an improvement to it using AdvEst, a method to estimate adversarial perturbation.

Representation Learning Speaker Identification

Joint domain adaptation and speech bandwidth extension using time-domain GANs for speaker verification

no code implementations30 Mar 2022 Saurabh Kataria, Jesús Villalba, Laureano Moro-Velázquez, Najim Dehak

Then, we propose a two-stage learning solution where we use a pre-trained domain adaptation system for pre-processing in bandwidth extension training.

Bandwidth Extension Domain Adaptation +1

Multi-Channel Speaker Verification for Single and Multi-talker Speech

no code implementations23 Oct 2020 Saurabh Kataria, Shi-Xiong Zhang, Dong Yu

We find the improvements from speaker-dependent directional features more consistent in multi-talker conditions than clean.

Action Detection Activity Detection +2

Low-Resource Domain Adaptation for Speaker Recognition Using Cycle-GANs

1 code implementation25 Oct 2019 Phani Sankar Nidadavolu, Saurabh Kataria, Jesús Villalba, Najim Dehak

We experiment with two adaptation tasks: microphone to telephone and a novel reverberant to clean adaptation with the end goal of improving speaker recognition performance.

Audio and Speech Processing Sound

Unsupervised Feature Enhancement for speaker verification

1 code implementation25 Oct 2019 Phani Sankar Nidadavolu, Saurabh Kataria, Jesús Villalba, Paola García-Perera, Najim Dehak

The approach yielded significant improvements on both real and simulated sets when data augmentation was not used in speaker verification pipeline or augmentation was used only during x-vector training.

Audio and Speech Processing Sound

Long-Term Memory Networks for Question Answering

no code implementations6 Jul 2017 Fenglong Ma, Radha Chitta, Saurabh Kataria, Jing Zhou, Palghat Ramesh, Tong Sun, Jing Gao

Question answering is an important and difficult task in the natural language processing domain, because many basic natural language processing tasks can be cast into a question answering task.

Question Answering

VAST : The Virtual Acoustic Space Traveler Dataset

no code implementations14 Dec 2016 Clément Gaultier, Saurabh Kataria, Antoine Deleforge

This paper introduces a new paradigm for sound source lo-calization referred to as virtual acoustic space traveling (VAST) and presents a first dataset designed for this purpose.

Recursive Neural Language Architecture for Tag Prediction

no code implementations24 Mar 2016 Saurabh Kataria

We consider the problem of learning distributed representations for tags from their associated content for the task of tag recommendation.

Representation Learning TAG

Multitask Learning for Sequence Labeling Tasks

no code implementations25 Apr 2014 Arvind Agarwal, Saurabh Kataria

Our method learns multiple models, one model for each label sequence.

Cannot find the paper you are looking for? You can Submit a new open access paper.