Time-Domain Pitch Synchronous Overlap-Add Algorithm for Speech Synthesis

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Resource Overview

This speech synthesis algorithm implements a time-domain Pitch Synchronous Overlap-Add (PSOLA) approach, performing prosodic feature extraction, modification, and waveform synthesis including short-term energy analysis and short-term zero-crossing rate analysis. The implementation utilizes MATLAB with key functions handling frame segmentation, pitch detection, and waveform concatenation.

Detailed Documentation

This algorithm is specifically designed for speech synthesis applications. It employs a time-domain Pitch Synchronous Overlap-Add (PSOLA) method that performs prosodic feature extraction, modification, and synthesis of waveform signals. The implementation includes complementary algorithms such as short-term energy analysis and short-term zero-crossing rate analysis for comprehensive speech processing. Developed in MATLAB, the algorithm utilizes frame-based processing where key functions manage pitch period detection, waveform segment alignment, and overlap-add operations. For speech synthesis tasks, this approach provides an effective methodology to generate more natural and fluent speech output through precise control of prosodic parameters and seamless waveform concatenation.

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