Dr. Nitya TiwariAssistant Professor
School of Electrical Sciences

Research Interests

Dr. Nitya Tiwari works in the areas of signal processing and speech processing. Her research interest includes the development and implementation of noise suppression and speech enhancement techniques for use in hearing assistive devices. Some of the areas she is currently working on include:
 
Single-channel speech enhancement to improve speech quality and intelligibility; Deep learning based noise aware speech enhancement; Multichannel speech enhancement; Real-time implementation and evaluation
 
 

Contact Details

  • nityatiwari@iitbbs.ac.in

Other Profile Link(s)

Education

 Degree Discipline Year School
  Ph.D. Electrical Engineering 2019 Indian Institute of Technology Bombay
 M.Tech, Electrical Engineering 2012 Indian Institute of Technology Bombay
 B.E. Electronics and Telecommunication Engineering 2010 Shri G. S. Institute of Technology and Science, Indore
 

Biosketch

Nitya Tiwari received the B.E. degree in electronics and telecommunication engineering from Shri G. S. Institute of Technology and Science, Indore in 2010. She received her M.Tech. degree in electrical engineering in 2012 and Ph.D. degree in 2019 from the Indian Institute of Technology Bombay, Mumbai,  India. She worked as chief and lead engineer in Samsung Research Institute Bangalore, India from 2019 to 2021. In October 2021, she joined as a DST Inspire Faculty in Department of Electrical Engineering at the Indian Institute of Technology Indore. In December 2022, she joined as an Assistant Professor at the School of Electrical Sciences, Indian Institute of Technology Bhubaneswar. Her research interests include speech processing and digital signal processing.

Teaching

Courses Taught
Digital Signal Processing at IIT Indore (Jointly with Prof. Vivek Kanhangad )
Speech Signal Processing at IIT Indore (Jointly with Prof. Ram Bilas Pachori)
Network Theory at IIT Indore 
Time-frequency analysis at IIT Indore (Jointly with Prof. Ram Bilas Pachori)
 
Courses Teaching
Satellite Communication Engineering at IIT Bhubaneswar
Course Webpage: https://sites.google.com/iitbbs.ac.in/ec3l008/home/

Projects

 DST Inspire Project, Speech enhancement for hearing impaired listeners, 2021. (Project duration: 5 Years)

Recent Publications (International Journals)

1N. Tiwari and P. C. Pandey, “A technique with low memory and computational requirements for dynamic tracking of quantiles,” J. Signal Processing Systems, Epub 2018 Jan 08, DOI: 10.1007/s11265-017-1327-6.
2N. Tiwari and P. C. Pandey, “Sliding-band dynamic range compression for use in hearing aids,” Int. J of Speech Technology, Epub 2019 Sep 13, DOI: 10.1007/s10772-019-09635-4
3N. Tiwari and P. C. Pandey, “Speech enhancement using noise estimation with dynamic quantile tracking,” IEEE/ACM Trans. Audio, Speech, and Lang. Process., vol. 27 (12), pp. 2301-2312, 2019. DOI: 10.1109/TASLP.2019.2945485

Conferences (International)

1N. Tiwari, P. C. Pandey, and P. N. Kulkarni, “Real-time implementation of multi-band frequency compression for listeners with moderate sensorineural impairment,” Proc. Interspeech 2012, Portland, Oregon, 2012, paper no. 689.
2N. Tiwari, Saketh Sharma, and P. C. Pandey, “Speech enhancement using noise estimation with adaptive dynamic quantile tracking for use in hearing aids,” 3DC Interspeech 2017, Stockholm, Sweden, 2017.
3 S. Sharma, N. Tiwari, and P. C. Pandey, “Implementation of digital hearing aid as a smartphone application,” Proc. Interspeech 2018, Hyderabad, India, 2018, pp. 1175-1179.
4V. Kishore, N. Tiwari, P. Paramasivam, “Improved speech enhancement using TCN with multiple encoder and decoder layers,” selected for publication in Proc. Interspeech 2020.

Conferences (National)

1N. Tiwari, S. K. Waddi, and P. C. Pandey, “Speech enhancement and multi-band frequency compression for suppression of noise and intraspeech spectral masking in hearing aids,” Proc. IEEE Indicon 2013, Mumbai, 2013, paper no. 524.
2R. Holani, P. C. Pandey, and N. Tiwari, “A JFET-based circuit for realizing a precision and linear floating voltage-controlled resistance,” Proc. IEEE Indicon 2014, Pune, India, 2014, paper no. 1098.
3N. Tiwari and P. C. Pandey, “A sliding-band dynamic range compression for use in hearing aids,” Proc. NCC 2014, Kanpur, 2014, paper no. 1569847357.
4N. Tiwari and P. C. Pandey, “Speech enhancement using noise estimation based on dynamic quantile tracking for hearing impaired listeners,” Proc. NCC 2015, Mumbai, India, 2015, paper no. 1570056299.
5S. Sharma, N. Tiwari, and P. C. Pandey, “Implementation of a digital hearing aid with user-settable frequency response and sliding-band dynamic range compression as a smartphone app,” Proc. IHCI 2016, Pilani, India, 2016, paper no. 81.
6N. Tiwari, P. C. Pandey, and A. Sharma, “A smartphone app-based digital hearing aid with sliding-band dynamic range compression,” Proc. NCC 2016, Guwahati, India, paper no. 1570227725.
 

Academic Honors & Awards

  • Gold medal in Electronics and Telecommunication Engineering in 2010 from Shri G.S Institute of Science and Technology, Indore
  • ISCA Endorsed First Prize in 5 Minute Ph.D. Thesis Competition at Summer School on Speech Signal Processing, DAIICT Gandhinagar
  • Excellence in Ph.D. award, Indian Institute of Technology Bombay
  • DST INSPIRE Faculty Fellowship.
 

Research Scholar

Record not found. Please check back later.

 

Patents

1.  P. C. Pandey and N. Tiwari, "Method and system for suppressing noise in speech signals in hearing aids and speech communication devices," US Patent No. US10032462B2, 24 July 2018, US Patent Application Publication No. US20170032803A1, 2 Feb 2017, US Patent Application No. 15/303,435, 11 Oct 2016, PCT Application No. PCT/IN2015/000183, 24 Apr 2015, Indian Patent Application No. 640/MUM/2015, 26 Feb 2015.

2.  P. C. Pandey and N. Tiwari, "Dynamic range compression with low distortion for use in hearing aids and audio systems," US Patent No. 9,672,834, 6 June 2017, US Patent Application Publication No. US20160336015A1, 17 Nov 2016, US Patent Application No. 15/113,271, 21 Jul 2016, PCT Application No. PCT/IN2015/000049, 27 Jan 2015, Indian Patent Application No. 290/MUM/2014, 27 Jan 2014.

3.  P. C. Pandey, N. Tiwari, and S. Sharma, “Personal communication device as a hearing aid with real-time interactive user interface,” Provisional Patent Application No. 2018/21032763, WO/2020/044377, PCT Application No. PCT/IN2019/050630.

4.  P. C. Pandey, A. R. Jayan, and N. Tiwari, "Method and system for consonant-vowel ratio modification for improving speech perception," US Patent Application Publication No. US20160365099A1, 15 Dec 2016, US Patent Application No. 15/121,599, 25 Aug 2016, PCT Application No. PCT/IN2015/000048, 27 Jan 2015, Indian Patent Application No. 739/MUM/2014, 4 Mar 2014.

5. P. C. Pandey, S. Debbarma, V. Marla, N. Tiwari, R. Holani and D. K. Sharma, "Continuously variable precision and linear floating resistor using metal-oxide-semiconductor field-effect transistors," US Patent No. US11031158B2, 8 June 2021, US Patent Application Publication No. US2020/0251260A1, 6 Aug 2020, 1 Jul 2021, PCT Application No. PCT/IN2018/050760, 16 Nov 2018, Indian Patent Application No. 201821030404, 13 Aug 2018.

 

Professional Experience

 Chief Engineer (Jan, 2021 - Sep., 2021) Samsung Research Institute Bangalore   Lead Engineer (May, 2019 - Dec., 2020) Samsung Research Institute Bangalore   DAT Inspire Faculty (Oct., 2021 - Dec., 2022) Indian Institute of Technology Indore

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