Rauschmindernde Tonwiedergabe

Details

Veröffentlichungs-Nr.

EP2551846

Aktenzeichen

EP11175347

Anmeldetag

26. Juli 2011

Veröffentlichung

19. Januar 2022

Erteilung

19. Januar 2022

Rechtsraum

EP

IPC

G10K11/178

Abstract

A noise reducing sound reproduction system and method is disclosed, in which an input signal is supplied to a loudspeaker by which it is acoustically radiated; the signal radiated by the loudspeaker is received by a microphone that is acoustically coupled to the loudspeaker via a secondary path and that provides a microphone output signal; the microphone output signal is subtracted from a useful-signal to generate a filter input signal; the filter input signal is filtered in an active noise reduction filter to generate an error signal; and the useful-signal is subtracted from the error signal to generate the loudspeaker input signal; and the useful-signal is filtered by one or more low-pass filters prior to subtraction from the microphone output signal.

Anmelder

Firma

AKG Acoustics GmbH

Land

🇦🇹 Österreich

Fachgebiete