Audiosystem

Details

Veröffentlichungs-Nr.

EP4325889

Aktenzeichen

EP23189054

Anmeldetag

1. August 2023

Veröffentlichung

21. Februar 2024

Rechtsraum

EP

IPC

H04R3/00

Abstract

In an audio system, when overheating of a speaker is detected, a controller controls first and second selectors to input an audio signal output by an audio source device to a cooling processing section and cause output of the cooling processing section to be output to the speaker. In the cooling processing section, a mixer mixes an audio signal obtained by removing a low-frequency component from the input audio signal by a high-pass filter with a cooling signal at an infrasonic frequency generated by a cooling signal generator and adjusted with a gain by a gain adjuster. An audio signal obtained by mixing the audio signal with the cooling signal is output from the cooling processing section via a nonlinear inverse filter. A gain setting section sets the gain such that power of the cooling signal matches power of the low-frequency component extracted by a low-pass filter.

Anmelder

Firma

Alps Alpine Co., Ltd.

Land

🇯🇵 Japan

Fachgebiete