Pitch Period Extraction Algorithm in Speech Signal Processing
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In speech signal processing, pitch period extraction algorithms play a crucial role. The fundamental principles of linear prediction-based algorithms can be effectively utilized to achieve this objective. We can implement and test these algorithms using MATLAB programming environment. During this process, we will explore methods for extracting pitch periods from speech signals and apply them to practical speech processing applications. The implementation typically involves key MATLAB functions such as lpc() for linear prediction coefficients calculation and peak detection algorithms for pitch tracking. The algorithm workflow generally includes pre-processing steps like framing and windowing, followed by LPC analysis to obtain residual signals where pitch information becomes more prominent. Finally, autocorrelation or peak-picking methods are applied to determine the fundamental frequency period.
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