Audio signal processing apparatus and method

US10448191B2 · kind B2 · utility

Assignee

• Huawei Technologies Co., Ltd. · CN

Inventors

• Liyun Pang · Munich, DE
• Peter Grosche · Munich, DE
• Christof Faller · New Providence, US
• Alexis Favrot · Suhr, CH

Key dates

• Filing date: Jun 6, 2018
• Grant date: Oct 15, 2019
• Expiry date: Jun 6, 2038

Classification

• Technology area (CPC —): General

Abstract

An audio signal processing apparatus, comprising a memory configured to store a set of pairs of predefined left ear and right ear transfer functions, which are predefined for a plurality of reference positions relative to the listener, a processor configured to determine a pair of left ear and right ear transfer functions on the basis of the set of predefined pairs of predefined left ear and right ear transfer functions for the azimuth angle and the elevation angle of the virtual target position and an adjustment filter configured to filter the input audio signal on the basis of the determined pair of left ear and right ear transfer functions and an adjustment function configured to adjust a delay between the left ear transfer function and the right ear transfer function to obtain a left ear output audio signal and a right ear output audio signal.