Recognition on voice-prints of elder persons
T. Moriyama, Kenta Kimura · 2002
The aim of study is the recognition on voice-prints. It is very important for CIM system and security system. The authors found out PPQ (period perturbation quotient) is very useful for recognition of voice-prints for elderly persons using FFT analyzing method of voices received. The voices of 20 20-year-old male students and 10 50-year-old male teachers are gathered in 0/spl sim/8 kHz for the 5 vowels for five seconds and the DFT and cepstrum are analyzed in 0/spl sim/4 kHz based on Shannon's sampling theorem using NTT's F-KOUBOU. The fundamental frequency and the formants are obtained from the cepstrum and DFT.