Welcome to Padmanabhan's homepage.

I am a postdoc working at the Speech and Image Processing Unit, University of Eastern Finland, with Dr Tomi Kinnunen.
I obtained my Ph.D. from IIT Madras in 2012 working with Prof. Hema A. Murthy.


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List Of Publications

1. R. Saeidi et. al, “I4U submission to NIST SRE 2012: A large-scale collaborative effort for
noise-robust speaker verification”, Proc. Interspeech 2013, Lyon, France.

2. C. Hanilci, T. Kinnunen, R. Padmanabhan, J. Pohjalainen, P. Alku, F. Ertas, “Comparison of
Spectrum Estimators in Speaker Verification: Mismatch Conditions Induced by Vocal Effort”,
Proc. Interspeech 2013, Lyon, France.

3. V. Hautamaki, Y. Cheng, R. Padmanabhan, C. Lee, “Minimax ivector extractor for short
duration speaker verification”, Proc. Interspeech 2013, Lyon, France.

4. R. Hautamaki, V. Hautamaki, R. Padmanabhan, T. Kinnunen, “Merging human and auto-
matic system decisions to improve speaker recognition performance”, Proc. Interspeech 2013,
Lyon, France.

5. R. Padmanabhan, T. Kinnunen, C. Hanilci, J. Pohjalainen, P. Alku, “Using group delay
functions from all-pole models for speaker recognition”, Proc. Interspeech 2013, Lyon, France.

6. R. Padmanabhan, T. Kinnunen, V. Hautamaki, “Effect of multicondition training on i-vector
PLDA configurations for speaker recognition”, Proc. Interspeech 2013, Lyon, France.

7. T. Kinnunen and R. Padmanabhan, “A practical, self-adaptive voice activity detector for
speaker verification with noisy telephone and microphone data”, Proc. IEEE Intl. Conf. Acoustics,
Speech and Signal Processing 2013, Vancouver, Canada.

8. Daniel Garcia-Romero et. al. , “The UMD-JHU 2011 Speaker Recognition System”, Proc. IEEE
Intl. Conf. Acoustics, Speech and Signal Processing 2012, Kyoto, Japan.

9. P. Sree Hari Krishnan, R. Padmanabhan, Hema A. Murthy, “Robustness of Group Delay
Representations for Noisy Speech Signals”, 14 (4), pp. 361-368, International Journal of
Speech Technology, Springer, 2011 (joint first-author paper.)

10. S. Ganapathy, R. Padmanabhan and H. Hermansky, “Multilayer perceptron based speech
activity detection for speaker verification”, Proc. IEEE Workshop on Applications of Signal
Processing to Audio and Acoustics, 2011, New Paltz, USA.

11. R. Padmanabhan, Hema A. Murthy, “Acoustic feature diversity and speaker verification”,
pp. 2110-2113, Proc. Interspeech 2010, Makuhari, Japan.

12. R. Padmanabhan, P. Sree Hari Krishnan, Hema A. Murthy, “Robustness of phase-based
Features for Speaker Recognition”, pp. 2355-2358, Proc. Interspeech 2009, Brighton, England.

13. R. Padmanabhan, Rajesh M. Hegde, Hema A. Murthy, “Dynamic Selection of Magnitude
and Phase based Acoustic Feature Streams for Speaker Verification”, Proc. European Signal
Processing Conference 2009, pp. 1244-1248, Glasgow, Scotland.

14. R. Padmanabhan, Hema A. Murthy, “Feature Evaluation for Speaker Identification in Radio
Communications Channel”, Proc. National Conf. on Communications, 2009, IIT Guwahati.

15. R. Padmanabhan, Hema A. Murthy, “On Parametric Representations of the Modified Group
Delay”, Proc. IEEE Intl. Conf. Audio, Language and Image Processing, pp 1185-1188, 2008,
Shanghai.

16. R. Padmanabhan, P. Sree Hari Krishnan, Hema A. Murthy, “A Pattern Recognition approach
to VAD using Modified Group Delay”, Proc. National Conf. on Communications, pp. 432-
436, 2008, IIT Bombay.

17. P. Sree Hari Krishnan, R. Padmanabhan, Hema A. Murthy, “Voice activity detection using
group delay processing on buffered short term energy”, Proc. National Conf. on Communications
, pp. 169-172, 2007, IIT Kanpur.

18. P. Sree Hari Krishnan, R. Padmanabhan, Hema A. Murthy, “Robust voice activity detection
using group delay functions”, Proc. IEEE Intl. Conf. Industrial Technology, pp. 2603-2607,
2006, Mumbai.

Useful stuff

Public dir