4th International Conference on Spoken Language Processing

Philadelphia, PA, USA
October 3-6, 1996

Pitch Detection and Voiced/Unvoiced Decision Algorithm Based on Wavelet Transforms

Léonard Janer (1), Juan José Bonet (1), Eduardo Lleida-Solano (2)

(1) Dept. TSC Universitat Politecnica de Catalunya, Barcelona, Spain
(2) GTC Dept. IEEC Centro Politecnico Superior de Ingenieros, Zaragoza, Spain

An improvement of an existing Pitch Detection Algorithm is presented in this paper. The solution reduces the computational load of its precedent algorithm and introduces a voiced/unvoiced decision step to reduce the number of errors. The efficiency of this improved system is tested with a semi-automatically segmented speech data base according to the information delivered by an attached laryngograph signal. The results show its periodicity detection.

Full Paper

Bibliographic reference.  Janer, Léonard / Bonet, Juan José / Lleida-Solano, Eduardo (1996): "Pitch detection and voiced/unvoiced decision algorithm based on wavelet transforms", In ICSLP-1996, 1209-1212.