1. VIPPERLA Ravichander
  2. VIPPERLA Ravichander
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VIPPERLA Ravichander

Journal

Wang, Dong; Vipperla, Ravichander; Evans, Nicholas; Zheng, Thomas Fang

Online non-negative convolutive pattern learning for speech signals

IEEE Transactions on Signal Processing, Volume 61, N°1, 2013, ISSN: 1053-587X
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Alegre, Federico; Vipperla, Ravichander; Evans, Nicholas

Spoofing countermeasures for the protection of automatic speaker recognition systems against attacks with artificial signals

INTERSPEECH 2012, 13th Annual Conference of the International Speech Communication Association, September 9-13, Portland, Oregon, USA

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Bozonnet, Simon; Vipperla, Ravichander; Evans, Nicholas

Phone adaptive training for speaker diarization

INTERSPEECH 2012, 13th Annual Conference of the International Speech Communication Association, September 9-13, Portland, Oregon, USA

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Conference

Geiger, Juergen; Vipperla, Ravichander; Bozonnet, Simon; Evans, Nicholas; Schuller, Bjoern; Rigoll, Gerhard

Convolutive non-negative sparse coding and new features for speech overlap handling in speaker diarization

INTERSPEECH 2012, 13th Annual Conference of the International Speech Communication Association, Volume3, September 9-13, Portland, Oregon, USA
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Geiger, Jürgen; Vipperla, Ravichander; Evans, Nicholas; Schuller, Björn; Rigoll, Gerhard

Speech overlap detection using convolutive non-negative sparse coding: New improvements and Insights

EUSIPCO 2012, European Signal Processing Conference, August, 27-31, 2012, Bucharest, Romania

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Conference

Alegre, Federico; Vipperla, Ravichander; Evans, Nicholas; Fauve, Benoit

On the vulnerability of automatic speaker recognition to spoofing attacks with artificial signals

EUSIPCO 2012, European Signal Processing Conference, August, 27-31, 2012, Bucharest, Romania
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Journal

Wang, Dong; King, Simon; Frankel, Joe; Vipperla, Ravichander; Evans, Nicholas; Troncy, Raphaël

Direct posterior confidence for out-of-vocabulary spoken term detection

ACM Transactions on Information Systems (TOIS), Vol 30, N°3, August 2012
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Report

Alegre, Federico; Vipperla, Ravichander; Evans, Nicholas; Fauve, Benoît

On the vulnerability of automatic speaker recognition to spoofing attacks with artificial signals

Research Report RR-12-266
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Conference

Vipperla, Ravichander; Geiger, Juergen T; Bozonnet, Simon; Wang, Dong; Evans, Nicholas; Schuller, Bjorn; Rigoll, Gerhard

Speech overlap detection and attribution using convolutive non-negative sparse coding

ICASSP 2012, 37th International Conference on Acoustics, Speech and Signal Processing, March 25-30, 2012, Kyoto, Japan
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Report

Wang, Dong; Vipperla, Ravichander; Evans, Nicholas; Zheng, Thomas Fang

Online non-negative convolutive pattern learning for speech signals

Research Report RR-11-261
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