Signalverarbeitungsverfahren und Systeme zur Strahlformung mit Mikrofontoleranzkompensation

Details

Veröffentlichungs-Nr.

EP3764664

Aktenzeichen

EP19185513

Anmeldetag

10. Juli 2019

Veröffentlichung

12. Februar 2025

Erteilung

12. Februar 2025

Rechtsraum

EP

IPC

H04R29/00// H04R3/00

Abstract

A method and apparatus are provided for generating a directional output signal from sound received by at least two microphones arranged as microphone array. The method includes transforming the sound received by each of said microphones and represented by analog-to-digital converted time-domain signals provided by each of said microphones into corresponding complex-valued frequency-domain microphone signals each having a frequency component value for each of a plurality of frequency components, and calculating, for each of the plurality of frequency components of the complex-valued frequency-domain microphone signal of at least one of said microphones, a respective tolerance compensated frequency component value by multiplying the frequency component value of the complex-valued frequency-domain microphone signal of said microphone with a frequency-specific real-valued correction factor.

Anmelder

Firma

Analog Devices International Unlimited Company

Land

🇮🇪 Irland

Fachgebiete