Search Results for author: Shreyas Ramoji

Found 7 papers, 3 papers with code

DiCOVA Challenge: Dataset, task, and baseline system for COVID-19 diagnosis using acoustics

no code implementations16 Mar 2021 Ananya Muguli, Lancelot Pinto, Nirmala R., Neeraj Sharma, Prashant Krishnan, Prasanta Kumar Ghosh, Rohit Kumar, Shrirama Bhat, Srikanth Raj Chetupalli, Sriram Ganapathy, Shreyas Ramoji, Viral Nanda

The DiCOVA challenge aims at accelerating research in diagnosing COVID-19 using acoustics (DiCOVA), a topic at the intersection of speech and audio processing, respiratory health diagnosis, and machine learning.

COVID-19 Diagnosis

Neural PLDA Modeling for End-to-End Speaker Verification

1 code implementation11 Aug 2020 Shreyas Ramoji, Prashant Krishnan, Sriram Ganapathy

Recently, we had proposed a neural network approach for backend modeling in speaker verification called the neural PLDA (NPLDA) where the likelihood ratio score of the generative PLDA model is posed as a discriminative similarity function and the learnable parameters of the score function are optimized using a verification cost.

Speaker Recognition Speaker Verification

NPLDA: A Deep Neural PLDA Model for Speaker Verification

1 code implementation10 Feb 2020 Shreyas Ramoji, Prashant Krishnan, Sriram Ganapathy

The likelihood ratio score of the generative PLDA model is posed as a discriminative similarity function and the learnable parameters of the score function are optimized using a verification cost.

Speaker Recognition Speaker Verification

LEAP System for SRE19 CTS Challenge -- Improvements and Error Analysis

no code implementations7 Feb 2020 Shreyas Ramoji, Prashant Krishnan, Bhargavram Mysore, Prachi Singh, Sriram Ganapathy

In this paper, we provide a detailed account of the LEAP SRE system submitted to the CTS challenge focusing on the novel components in the back-end system modeling.

Speaker Recognition Speaker Verification

Pairwise Discriminative Neural PLDA for Speaker Verification

1 code implementation20 Jan 2020 Shreyas Ramoji, Prashant Krishnan V, Prachi Singh, Sriram Ganapathy

The pre-processing steps of linear discriminant analysis (LDA), unit length normalization and within class covariance normalization are all modeled as layers of a neural model and the speaker verification cost functions can be back-propagated through these layers during training.

Speaker Verification

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