Audiosystem und Signalverarbeitungsverfahren zur Sprachaktivitätserkennung für eine am Ohr Montierbaren Wiedergabevorrichtung

Details

Veröffentlichungs-Nr.

EP3712885

Aktenzeichen

EP19187045

Anmeldetag

18. Juli 2019

Veröffentlichung

14. Mai 2025

Erteilung

14. Mai 2025

Rechtsraum

EP

IPC

G10K11/178G10L25/78

Abstract

An audio system for an ear mountable playback device (HP) comprises a speaker (SP), an error microphone (FB_MIC) predominantly sensing sound being output from the speaker (SP) and a feed-forward microphone (FF_MIC) predominantly sensing ambient sound. The audio system further comprises a voice activity detector (VAD) which is configured to record a feed-forward signal (FF) from the feed-forward microphone (FF_MIC). Furthermore, an error signal (ERR) is recorded from the error microphone (FB_MIC). A detection parameter is determined as a function of the feed-forward signal (FF) and the error signal (ERR). The detection parameter is monitored and a voice activity state is set depending on the detection parameter.

Anmelder

Firmen

ams AG
AMS AG

Land

🇦🇹 Österreich

Fachgebiete