Audiosignalverarbeitungsverfahren und Audiosignalverarbeitungsvorrichtung

Details

Veröffentlichungs-Nr.

EP4712075

Anmeldetag

23. Dezember 2014

Veröffentlichung

18. März 2026

Rechtsraum

EP

IPC

G10L19/02

Abstract

The present invention relates to an audio signal processing method, a parameterization device and an audio signal processing device for the same, and more particularly, to an audio signal processing method to implement filtering of an input audio signal with a low computational complexity, and a parameterization device and an audio signal processing device for the same.To this end, provided are a method for processing an audio signal, including: receiving an input audio signal; receiving at least one binaural room impulse response (BRIR) filter coefficients for binaural filtering of the input audio signal; converting the BRIR filter coefficients into a plurality of subband filter coefficients; obtaining flag information indicating whether the length of the BRIR filter coefficients in a time domain is more than a predetermined value; truncating each subband filter coefficients based on filter order information obtained by at least partially using characteristic information extracted from the corresponding subband filter coefficients, the truncated subband filter coefficients being filter coefficients of which energy compensation is performed based on the flag information and the length of at least one truncated subband filter coefficients being different from the length of the truncated subband filter coefficients of another subband; and filtering each subband signal of the input audio signal by using the truncated subband filter coefficients, and a parameterization device and an audio signal processing device for the same.

Anmelder

Firmen

Wilus Institute of Standards and Technology Inc.
GCoA Co., Ltd.

Land

🇰🇷 Südkorea

Fachgebiete