Voiceprint and wake-up word dual identity verification method, system, medium and device

Abstract

The application provides a voiceprint and wake-up word double identity verification method, system, medium and equipment, and belongs to the technical field of vehicle-mounted voice interaction identity verification. The method comprises the following steps: obtaining a collected wake-up word audio stream, pre-processing the wake-up word audio stream to obtain a voice segment audio; converting the voice segment audio into a text sequence, calculating the text similarity between the text sequence and a preset wake-up word text; extracting a 39-dimensional voiceprint feature vector from the voice segment audio, calculating the voiceprint similarity between the voiceprint feature vector and a pre-stored voiceprint template; if the text similarity is greater than or equal to a preset text matching threshold value, and the voiceprint similarity is greater than or equal to a preset voiceprint matching threshold value, then the double identity verification is passed; otherwise, abnormal attempt monitoring and locking are performed, and when there is an abnormal attempt, the vehicle-mounted voice interaction system is dynamically locked. The above method can guarantee the identity security of vehicle-mounted voice interaction.

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