New pole-by-pole model fitting approach for signal parameter estimation. - C. S. Ramalingam; Ramdas Kumaresan; Dirk van Ormondt (ICASSP, 1991)

Formant tones: weak components at formant frequencies actively generated in the vocal tract. - Ramdas Kumaresan; C. S. Ramalingam (ICASSP (4), 1993)

Voiced-speech analysis based on the residual interfering signal canceler (RISC) algorithm. - C. S. Ramalingam; Ramdas Kumaresan (ICASSP (1), 1994)

Effect of model mismatch on polynomial envelope and phase modeling of nonstationary sinusoids. - C. S. Ramalingam; Ramdas Kumaresan (ICASSP, 1995)

On the equivalence of DESA-1a and Prony's method when the signal is a sinusoid. - C. S. Ramalingam (IEEE Signal Process. Lett., 1996)

An improved chirp group delay based algorithm for estimating the vocal tract response. - M. K. Jayesh; C. S. Ramalingam (EUSIPCO, 2014)

Improved chirp group delay based algorithms with applications to vocal tract estimation and speech recognition. - M. K. Jayesh; C. S. Ramalingam (Speech Commun., 2016)

On the connection between matrix notch filter and maximum likelihood estimation of sinusoidal parameters. - P. Vishnu; C. S. Ramalingam (ICSPCS, 2017)

Model Order Estimation using Ratio of Cumulative Sums of Eigenvalues. - P. Vishnu; C. S. Ramalingam (SPCOM, 2018)

Improving the Estimation of Sinusoidal Frequencies and Direction-of-Arrival Using Line Spectral Frequencies. - Vishnu Palakkal; C. S. Ramalingam (IEEE Signal Process. Lett., 2018)

Efficient Methods for Estimating Sinusoidal Frequencies Using Line Spectral Pairs. - P. Vishnu; C. S. Ramalingam (NCC, 2019)

An Improved LSF-based Algorithm for Sinusoidal Frequency Estimation that Achieves Maximum Likelihood Performance. - P. Vishnu; C. S. Ramalingam (SPCOM, 2020)

A method with lower-than-MLE threshold SNR for frequency estimation of multiple sinusoids. - Vishnu Palakkal; C. S. Ramalingam (Signal Process., 2021)

Robust Pitch Estimation Using Multi-Branch CNN-LSTM and 1-Norm LP Residual. - Mudit D. Batra; M. K. Jayesh; C. S. Ramalingam (INTERSPEECH, 2022)

Improved Pitch and Voicing Determination Using the Reflected Root Chirp Group Delay Spectrum. - Nishant Singh; Mudit D. Batra; C. S. Ramalingam (ICASSP, 2025)