公开(公告)号：US20130332156A1

公开(公告)日：2013-12-12

申请号：US13775100

申请日：2013-02-22

Applicant: APPLE INC.

Inventor： Onur Ergin Tackin ,  Sinan Karahan ,  Lalin S. Theverapperuma ,  Tiange Shao ,  Haining Zhang ,  Arun G. Mathias

IPC: H04R29/00 ,  G10L21/0216

CPC classification number: H04R29/004 ,  G10L21/0216 ,  G10L25/78 ,  H03G3/3005 ,  H03G3/3089 ,  H04M1/6008 ,  H04M1/6041 ,  H04M2250/12 ,  H04R3/005 ,  H04R3/02 ,  H04R2499/11

Abstract: The disclosed system and method for a mobile device combines information derived from onboard sensors with conventional signal processing information derived from a speech or audio signal to assist in noise and echo cancellation. In some implementations, an Angle and Distance Processing (ADP) module is employed on a mobile device and configured to provide runtime angle and distance information to an adaptive beamformer for canceling noise signals, provides a means for building a table of filter coefficients for adaptive filters used in echo cancellation, provides faster and more accurate Automatic Gain Control (AGC), provides delay information for a classifier in a Voice Activity Detector (VAD), provides a means for automatic switching between a speakerphone and handset mode of the mobile device, or primary microphone and reference microphones and assists in separating echo path changes from double talk.

Abstract translation: 所公开的用于移动设备的系统和方法将从车载传感器获得的信息与从语音或音频信号导出的常规信号处理信息相结合，以帮助噪声和回波消除。 在一些实现中，在移动设备上采用角度和距离处理（ADP）模块，并且被配置为向自适应波束形成器提供运行时间角度和距离信息以消除噪声信号，提供用于建立自适应滤波器的滤波器系数表的装置 用于回声消除，提供更快更准确的自动增益控制（AGC），为语音活动检测器（VAD）中的分类器提供延迟信息，提供了在移动设备的免提电话和手机模式之间自动切换的手段，或 主麦克风和参考麦克风，有助于将回声路径变化与双方通话分离。