Speech and Vision Lab

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Ravi Shankar Prasad

Research Scholar (PhD) Ravi Shankar Prasad
B4-102, IIIT Hyderabad, Gachibowli
Hyderabad - 500032
Andhra Pradesh
Telephone: +91-40-6653-1422
Email: ravishankar.prasad@research.iiit.ac.in
Personal page: http://speech.iiit.ac.in/~ravishankarprasad

I am a research scholar working at the Speech and Vision Lab, IIIT-Hyderabad.

I work under the supervision of Prof. B. Yegnanarayana.

My work is oriented towards understanding the production system dynamics during the production of certain sounds.

I attempt to study the changes in the vocal tract acoustic system response with respect to the movement of different articulators.

My first project; Virtual Labs; www.vlab.co.in; requires me to develop a virtual online platform for students to conduct experiments in the field of Artificial Neural Networks. I developed the lab, with the help of my lab members, using Java platform and basic knowledge of Neural Networks. 

My Second project; Prosodically guided phonetic engine; constitutes my current major research area. I am working towards segmenting speech signals into basic units using signal processing tools, which can later be used for labeling the segments with accurate boundaries. 

Recent Publications:
  1. Ravi Shankar Prasad and B. Yegnanarayana, "Determination of glottal open regions by exploiting changes in the vocal tract system characteristics", 2016. [More] [Digital]
  2. Ravi Shankar Prasad and B. Yegnanarayana, "Robust pitch estimation in noisy speech using ZTW and group delay function", 2015. [More] [Digital]
  3. Ravi Shankar Prasad and B. Yegnanarayana, "Acoustic segmentation of speech using zero time liftering (ZTL)", 2013. [More] [Digital]
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