Invention Grant
- Patent Title: Beamforming in varying sound pressure level
- Patent Title (中): 波动变化在不同的声压级
-
Application No.: US14451039Application Date: 2014-08-04
-
Publication No.: US09326060B2Publication Date: 2016-04-26
- Inventor: Guy C. Nicholson , Wei Li
- Applicant: Apple Inc.
- 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: H03G3/20
- IPC: H03G3/20 ; H04R1/40 ; H04R3/00 ; H04R1/02 ; H04N9/79

Abstract:
A method that uses a microphone array for spatially selective sound pickup during an audio-video recording session is described. An audio signal for the audio-video recording session is generated using a beamforming process from the microphone array in accordance with a sound pickup directivity pattern. Ambient sound pressure level of the audio-video recording session is monitored while generating the audio signal. The sound pickup directivity pattern of the beamforming process is automatically adjusted during the audio-video recording session as a function of the monitored ambient sound pressure level. Other embodiments are also described and claimed.
Public/Granted literature
- US20160037255A1 BEAMFORMING IN VARYING SOUND PRESSURE LEVEL Public/Granted day:2016-02-04
Information query