... parameters. The notion of instantaneous frequency was introduced in [4, 5], the estimation methods have been presented in [4–9]. The aim of the current investigation is to study applicability of the instantaneous ... example of vocal processing is shown. The concerned processing system is aimed at pitch shifting in order to assist a singer. The voice of the singer is analyzed by the proposedtechnique and then ... scalemodifications,” in Proceedings of the 105th AES Convention,San Francisco, Calif, USA, September 1998, Preprint 4781.2 EURASIP Journal on Advances in Signal Processing in time domain at the output of the...