Design and Implementation of Voice Conversion System Based on GMM and ANN - Multimedia and Signal Processing - page 626

Source voice Target voice

Pretreatment Pretreatment

LPC analysis LPC analysis

Residual
signal

LPC
parameter

LPC
parameter

Residual
signal

GMM 1

Mapping rule
Ⅰ

GMM 1

Mapping rule
Ⅱ

Pitch frequence BP network Pitch frequence

Mapping rule
Ⅲ

Fig. 1. Training diagram of voice conversion

Fig. 2. Conversion diagram of voice conversion