公开(公告)号：US20190325900A1

公开(公告)日：2019-10-24

申请号：US16460651

申请日：2019-07-02

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ganesan THIAGARAJAN ,  Tarkesh PANDE ,  David Patrick MAGEE

IPC: G10L25/84 ,  G10L25/09 ,  G10L25/21

Abstract: In described examples, a method for detecting voice activity includes: receiving a first input signal containing noise; sampling the first input signal to form noise samples; determining a first value corresponding to the noise samples; subsequently receiving a second input signal; sampling the second input signal to form second signal samples; determining a second value corresponding to the second signal samples; forming a ratio of the second value to the first value; comparing the ratio to a predetermined threshold value; and responsive to the comparing, indicating whether voice activity is detected in the second input signal.