The Lpc speech production model Speech synthesis model Impulse train generator governed by pitch period--glottis Random noise generator for consonant vocaltractparameters=LpCparametershttp://home.hib.no/al/enge Isk/seksjon/SOFF- MASTER/il061 gif Glottal excitation for yowel LPC parameters Impulse train Voice/unvoiced Generator switch Time varying digital filter output Noise Generator Gain Consonant Feature extractionThe LPC speech production model • Speech synthesis model: – Impulse train generator governed by pitch period-- glottis – Random noise generator for consonant. – Vocal tract parameters = LPC parameters Feature extraction, v.9a 23 X Time-varying digital filter output Impulse train Generator Voice/unvoiced switch Gain Noise Generator (Consonant) LPC parameters Time varying digital filter Glottal excitation for vowel http://home.hib.no/al/enge lsk/seksjon/SOFF￾MASTER/ill061.gif