Invention Application
- Patent Title: ACOUSTIC ECHO CANCELLATION
-
Application No.: US18314194Application Date: 2023-05-09
-
Publication No.: US20240379088A1Publication Date: 2024-11-14
- Inventor: Carl NUZMAN , Wouter Lanneer
- Applicant: Nokia Technologies Oy
- Applicant Address: FI Espoo
- Assignee: Nokia Technologies Oy
- Current Assignee: Nokia Technologies Oy
- Current Assignee Address: FI Espoo
- Main IPC: G10K11/178
- IPC: G10K11/178 ; H04S3/00

Abstract:
Examples of the disclosure relate to acoustic echo cancellation using adaptive filtering modules. An apparatus for acoustic echo cancellation is configured to process a first input signal using a first acoustic echo cancellation module to obtain a first prediction signal and to process a second input signal using a second acoustic echo cancellation module to obtain a second prediction signal. The first input signal is based on a loudspeaker signal and the second input signal is a delayed first input signal. The prediction signals are processed to obtain a predicted echo signal. The predicted echo signal is applied to a received microphone signal to reduce echo from loudspeaker playback in the received microphone signal. The acoustic echo cancellation modules can be adapted using an adaptive filtering module.
Information query