公开(公告)号：US11729567B2

公开(公告)日：2023-08-15

申请号：US17571135

申请日：2022-01-07

Applicant: THALES

Inventor： François Robert ,  Patrick Dervin ,  Jean-Christophe Reculeau

IPC: H04R29/00 ,  H04R3/00 ,  H04S1/00

CPC classification number: H04R29/001 ,  H04R3/00 ,  H04S1/007

Abstract: The present invention relates to a device for generating sound messages, comprising:



a generation chain configured to generate a first and a second sound signal carrying a useful audio signal and a test audio signal;
a conversion chain configured to transform the first and second sound signals into first and second analog signals; and
a verification chain configured to extract the test audio signal from a combination of the analog signals to verify the integrity of the useful audio signal.




The first sound signal corresponds to the sum of the test audio signal and the useful audio signal, and the second sound signal corresponds to the sum of the test audio signal and an opposite signal corresponding to the opposite of the useful audio signal.