Speaker Verification System Using Ultrasound Energy In Human Speech

A speaker verification system includes an ultrasonic microphone generating electrical sound signal from an audio signal corresponding to both ultrasonic frequency sound and sub-ultrasonic frequency sound. A liveness detection module generates a high frequency energy distribution based on the electrical sound signal. The liveness module generates a verification result based on the high frequency energy distribution. A speaker verification module verifies the audio signal based on the high frequency energy distribution signals and a neural network architecture.