A VOICE-PHISHING DETECTION METHOD BASED ON A SMV

摘要

PURPOSE: A voice-phishing detection method based on a SMV is provided to effectively prevent the voice phishing by the parameters extracted during the SMV demodulation procedure. CONSTITUTION: The voice phishing detector system comprises the SMV(Selectable Mode Vocoder) decoder(310), the feature vector configuration part(320) and GMM(Gaussian Mixture Model)(330). The SMV decoder comprises the LPC(Linear Prediction Coding) excitation/synthesis filter(312) and post-processing filter(314). The feature vector configuration part constitutes feature vectors with parameters. The parameters are automatically extracted from the SMV decoder. The GMM detects the voice phishing with the application of the feature vector.