International Research journal of Management Science and Technology

  ISSN 2250 - 1959 (online) ISSN 2348 - 9367 (Print) New DOI : 10.32804/IRJMST

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IMPLEMENTATION OF PSOLA BASED VOICE PROPERTIES MANIPULATION

    1 Author(s):  FAIYAZ AHMAD

Vol -  10, Issue- 5 ,         Page(s) : 127 - 132  (2019 ) DOI : https://doi.org/10.32804/IRJMST

Abstract

PSOLA (Pitch Synchronous Overlap and Add) is a digital signal processing technique used for speech processing and more specifically speech synthesis. In this paper we are exploiting the feature of Pitch Synchronous Overlap and Add to change voice properties. Here, we are taking three properties, namely vocal tract, pitch and time. On changing these properties original voice is changed. In PSOLA, we divide the speech waveform in small overlapping segments. Now, if we want to increase the pitch, we need to move speech segments apart otherwise we need to bring the segments together to decrease the pitch.

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