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Ravichander Vipperla
Ravichander Vipperla
Senior Applied Scientist, Amazon, Cambridge, UK
Verified email at amazon.com
Title
Cited by
Cited by
Year
On the Vulnerability of Automatic Speaker Recognition to Spoofing Attacks with Artificial Signals.
F Alegre, R Vipperla, N Evans, B Fauve
Proc. Eusipco, 2012
802012
Ageing voices: The effect of changes in voice parameters on ASR performance
R Vipperla, S Renals, J Frankel
EURASIP Journal on Audio, Speech, and Music Processing 2010, 1-10, 2010
692010
Longitudinal study of ASR performance on ageing voices
R Vipperla, S Renals, J Frankel
662008
Spoofing countermeasures for the protection of automatic speaker recognition systems against attacks with artificial signals.
F Alegre, R Vipperla, N Evans
Proc. Interspeech, 2012
602012
A new speaker verification spoofing countermeasure based on local binary patterns
F Alegre, R Vipperla, A Amehraye, N Evans
INTERSPEECH 2013, 14th Annual Conference of the International Speech …, 2013
582013
Collaborative joint training with multitask recurrent model for speech and speaker recognition
Z Tang, L Li, D Wang, R Vipperla
IEEE/ACM Transactions on Audio, Speech, and Language Processing 25 (3), 493-504, 2016
472016
Speech input from older users in smart environments: Challenges and perspectives
R Vipperla, M Wolters, K Georgila, S Renals
International Conference on Universal Access in Human-Computer Interaction …, 2009
472009
CN-Celeb: multi-genre speaker recognition
L Li, R Liu, J Kang, Y Fan, H Cui, Y Cai, R Vipperla, TF Zheng, D Wang
Speech Communication 137, 77-91, 2022
392022
Speech overlap detection and attribution using convolutive non-negative sparse coding
R Vipperla, J Geiger, S Bozonnet, D Wang, N Evans, B Schuller, G Rigoll
International Conference on Acoustics, Speech and Signal Processing, 2012
352012
Online Non-Negative Convolutive Pattern Learning for Speech Signals
D Wang, R Vipperla, N Evans, TF Zheng
IEEE Transactions on Signal Processing, 1-1, 2011
342011
Nas-bench-asr: Reproducible neural architecture search for speech recognition
A Mehrotra, AGCP Ramos, S Bhattacharya, Ł Dudziak, R Vipperla, ...
International Conference on Learning Representations, 2020
282020
Convolutive Non-Negative Sparse Coding and New Features for Speech Overlap Handling in Speaker Diarization.
J Geiger, R Vipperla, S Bozonnet, N Evans, B Schuller, G Rigoll
Proc. Interspeech, 2012
212012
Online pattern learning for non-negative convolutive sparse coding
D Wang, R Vipperla, N Evans
Twelfth Annual Conference of the International Speech Communication Association, 2011
212011
Shrinkml: End-to-end asr model compression using reinforcement learning
Ł Dudziak, MS Abdelfattah, R Vipperla, S Laskaridis, ND Lane
arXiv preprint arXiv:1907.03540, 2019
182019
Spoken Dialogue Interfaces for Older People
R Vipperla, M Wolters, S Renals
Advances in Home Care Technologies, Assistive Technology Research Series 31 …, 2012
172012
Robust speech recognition in multi-source noise environments using convolutive non-negative matrix factorization
R Vipperla, S Bozonnet, D Wang, N Evans
CHiME workshop, Interspeech, 2011
172011
Age recognition for spoken dialogue systems: Do we need it?
M Wolters, R Vipperla, S Renals
Tenth Annual Conference of the International Speech Communication Association, 2009
172009
Direct posterior confidence for out-of-vocabulary spoken term detection.
D Wang, S King, J Frankel, R Vipperla, N Evans, R Troncy
ACM Transactions on Information Systems 30 (3), 2012
152012
Bunched lpcnet: Vocoder for low-cost neural text-to-speech systems
R Vipperla, S Park, K Choo, S Ishtiaq, K Min, S Bhattacharya, A Mehrotra, ...
arXiv preprint arXiv:2008.04574, 2020
142020
Speech Overlap Detection Using Convolutive Non-Negative Sparse Coding: New Improvements and Insights.
J Geiger, R Vipperla, N Evans, B Schuller, G Rigoll
Proc. Eusipco, 2012
132012
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Articles 1–20