Invention Grant
US08150063B2 Stabilizing directional audio input from a moving microphone array
有权
稳定来自移动麦克风阵列的定向音频输入
- Patent Title: Stabilizing directional audio input from a moving microphone array
- Patent Title (中): 稳定来自移动麦克风阵列的定向音频输入
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Application No.: US12323284Application Date: 2008-11-25
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Publication No.: US08150063B2Publication Date: 2012-04-03
- Inventor: Shaohai Chen , Phillip George Tamchina , Jae Han Lee
- Applicant: Shaohai Chen , Phillip George Tamchina , Jae Han Lee
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Blakely, Sokoloff, Taylor & Zafman LLP
- Main IPC: H04R3/00
- IPC: H04R3/00

Abstract:
A device includes a microphone array fixed to the device. A signal processor produces an audio output using audio beamforming with input from the microphone array. The signal processor aims the beamforming in a selected direction. An orientation sensor—such as a compass, an accelerometer, or an inertial sensor—is coupled to the signal processor. The orientation sensor detects a change in the orientation of the microphone array and provides an orientation signal to the signal processor for adjusting the aim of the beamforming to maintain the selected direction. The device may include a camera that captures an image. An image processor may identify an audio source in the image and provide a signal adjusting the selected direction to follow the audio source. The image processor may receive the orientation signal and adjust the image for changes in the orientation of the camera before tracking movement of the audio source.
Public/Granted literature
- US20100128892A1 Stabilizing Directional Audio Input from a Moving Microphone Array Public/Granted day:2010-05-27
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