公开(公告)号：US20250104684A1

公开(公告)日：2025-03-27

申请号：US18830119

申请日：2024-09-10

Applicant: GN Audio A/S

Inventor： Valiantsin BELYI ,  Yurii IOTOV ,  Sidsel Marie NØRHOLM

IPC: G10K11/178 ,  H04R1/10

Abstract: A feedforward active noise cancellation system comprising one or more reference microphones, one or more loudspeakers, one or more error microphones, a first filter, and a second and adaptive filter. The first filter is configured to filter a first input signal to minimize a residual error. The second and adaptive filter comprises a linear predictor of speech. The second and adaptive filter is configured to filter a second input signal based on predicted speech to compensate for a processing delay and a second propagation delay exceeding a first propagation delay.