A sound line detection device and method

Abstract

The embodiment of the present application discloses a voiceprint detection device and method, including a first sound pickup sensor unit, a second sound pickup sensor, and a main control analysis unit; the first sound pickup sensor unit collects the tester's data by contacting the tester. The first voiceprint signal; the second pickup sensor unit collects the second voiceprint signal conducted through the air; the main control analysis unit is used to compare the first voiceprint signal with the second voiceprint signal when the tester speaks , to determine whether it is the voiceprint of the same person. The present application avoids the influence of open indoor environment and noise environment on voiceprint collection by the method of solid conduction.

Description

Technical field [0001] This application involves the field of sound -based testing technology, especially for a sound pattern detection device and method. Background technique [0002] In the field of sound pattern, the sound of air spread is often affected by air pressure, airflow, background noise, etc., and it is easy to disturb the products during the radio. In order to avoid the impact of noise, airflow, and air pressure often use LMS (minimum average square self -adaptive filter), spectrum reduction method, Winner filtering and other commonly used noise reduction methods. However In the open indoor scenes that are prone to reverberation, the requirements of sound texture cannot be met. Invention content [0003] The embodiment of this application provides a sound line detection device and method, which avoids the effects of empty indoor environment and noise environment on the collection of sound patterns through solid conduction methods. [0004] In view of this, the firs...

AI Technical Summary

Problems solved by technology

In order to avoid the influence of noise, airflow and air pressure, common noise reduction methods such as LMS (least mean square adaptive filter), spectral subtraction, and Wiener filtering are often used. However, these methods cannot effectively solve all problems of poor radio quality, especially In open indoor scenes that are prone to reverberation, the requirements for voiceprint collection will not be met

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