Warped-LP residual resampling using DCT for pitch modification. - R. Muralishankar; A. G. Ramakrishnan; P. Prathibha (INTERSPEECH, 2002)

Modification of pitch using DCT in the source domain. - R. Muralishankar; A. G. Ramakrishnan; P. Prathibha (Speech Commun., 2004)