Publications

Journals

1. N. 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

2. N. 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

3. N. 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.

Conferences

1. V. Kishore, N. Tiwari, P. Paramasivam, “Improved speech enhancement using TCN with multiple encoder and decoder layers,” selected for publication in Proc. Interspeech 2020.

5. 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.

6. N. 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.

7. N. 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.

8. S. 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.

9. N. 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.

10. N. Tiwari and P. C. Pandey, “A sliding-band dynamic range compression for use in hearing aids,” Proc. NCC 2014, Kanpur, 2014, paper no. 1569847357.

11. R. 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.

12. N. 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.

13. N. 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.

Patents

14. 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.

15. 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.

16. 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.

17. 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.

18. 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.