Numerical evaluation of Fourier-Bessel series expansion. - Kaliappan Gopalan; C. S. Chen (ICASSP, 1983)

Speech signal analysis and synthesis via Fourier-Bessel representation. - C. S. Chen; Kaliappan Gopalan; Pallabi Mitra (ICASSP, 1985)

Computation of the two-dimensional Fourier transform of circularly symmetric functions. - Kaliappan Gopalan; C. S. Chen (ICASSP, 1985)

A comparison of speaker identification results using features based on cepstrum and Fourier-Bessel expansion. - Kaliappan Gopalan; Timothy R. Anderson 001; Edward J. Cupples (IEEE Trans. Speech Audio Process., 1999)

On the effect of stress on certain modulation parameters of speech. - Kaliappan Gopalan (ICASSP, 2001)

Data embedding in the phase spectrum of speech signals. - Kaliappan Gopalan (SIP, 2001)

Audio steganography using bit modification. - Kaliappan Gopalan (ICASSP (2), 2003)

Audio steganography by amplitude or phase modification. - Kaliappan Gopalan; Stanley J. Wenndt; Scott F. Adams; Darren M. Haddad (Security and Watermarking of Multimedia Contents, 2003)

Cepstral domain modification of audio signals for data embedding: preliminary results. - Kaliappan Gopalan (Security, Steganography, and Watermarking of Multimedia Contents, 2004)

Audio steganography by cepstrum modification. - Kaliappan Gopalan (ICASSP (5), 2005)

Robust watermarking of music signals by cepstrum modification. - Kaliappan Gopalan (ISCAS (5), 2005)

A One-Dimensional Technique for Embedding Data in A JPEG Color Image. - Kaliappan Gopalan (APCCAS, 2006)

A technique for imperceptible embedding of data in a color image. - Kaliappan Gopalan (ICINCO-RA, 2006)

Speech Analysis using Modulation-Based Features for Detecting Deception. - Kaliappan Gopalan; Stanley J. Wenndt (DSP, 2007)

Audio Steganography Using Bit Modification - A Tradeoff on Perceptibility and Data Robustness for Large Payload Audio Embedding. - Kaliappan Gopalan; Qidong Shi (ICCCN, 2010)

A Bit Modification Technique for Watermarking Images and Streaming Video. - Kaliappan Gopalan (ACC (4), 2011)

Keyword word recognition using a fusion of spectral, cepstral and modulation features. - Kaliappan Gopalan; Tao Chu (CONIELECOMP, 2012)

Word boundary detection through frame classification using bispectral analysis. - Padmalochini Umakanthan; Kaliappan Gopalan (EIT, 2012)

Deception detection in speech using bark band and perceptually significant energy features. - Muhammad Sanaullah; Kaliappan Gopalan (MWSCAS, 2013)

Audio watermarking using bit modification of voiced or unvoiced segments. - Dongjian Cai; Kaliappan Gopalan (EIT, 2014)

Speech based analysis of physiological stress using perceptually significant features. - Yang Liu; Kaliappan Gopalan (EIT, 2014)

An imperceptible and robust audio steganography employing bit modification. - Kaliappan Gopalan; Jiajun Fu (ICIT, 2015)

An algorithm for fragile audio watermarking by bit modification. - Kaliappan Gopalan (INDIN, 2016)

Audio Steganography for Information Hiding and Covert Communication - a Tutorial. - Kaliappan Gopalan (EIT, 2018)