Voice Conversion Method for Myanmar Speech Synthesis

Abstract

Speaker independent speech recognition is important for successful development of speech recognizer in most real world applications. This paper emphasizes speaker independent based on voice conversion usinga pitch shifting method,Pitch SynchronousOver Lap Add Algorithm (PSOLA).It depends on detecting the pitch of the signal (fundamental frequency) and changing it according to the target pitch period using time stretching with Pitch SynchronousOver Lap Add Algorithm (PSOLA), then resampling the signal in order to have the same play rate.The traditional voice activity detection algorithms which track only energy cannot successfully identify potential speech from input because the unwanted part of the speech also has some energy and appears to be speech. In the proposed system, VAD (Voice Activity Detection) that calculates energy of high frequency part separately as zero crossing rate to differentiate noise from speech is used.