Invention Grant
- Patent Title: Headset and a method for audio signal processing
- Patent Title (中): 耳机和音频信号处理方法
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Application No.: US14566959Application Date: 2014-12-11
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Publication No.: US09472180B2Publication Date: 2016-10-18
- Inventor: Rasmus Kongsgaard Olsson
- Applicant: GN Netcom A/S
- Applicant Address: DK
- Assignee: GN Netcom A/S
- Current Assignee: GN Netcom A/S
- Current Assignee Address: DK
- Agency: Altera Law Group, LLC
- Priority: EP13197139 20131213
- Main IPC: A61F11/06
- IPC: A61F11/06 ; G10K11/16 ; H03B29/00 ; G10K11/175 ; H04R3/00 ; H04R1/10 ; G10L21/0208 ; H04R1/40 ; G10L21/0216

Abstract:
A headset and a method configured to process audio signals from multiple microphones, comprising: a first pair of microphones (101,102) outputting a first pair of microphone signals and a second pair of microphones (103, 104) outputting a second pair of microphone signals; a first near-field beamformer (105) and a second near-field beamformer (106) each configured to receive a pair of microphone signals and adapt the spatial sensitivity of a respective pair of microphones as measured in a respective beamformed signal (XL; XR) output from a respective beamformer (105; 106); wherein the spatial sensitivity is adapted to suppress noise relative to a desired signal; a third beamformer (107) configured to dynamically combine the signals (XL; XR) output from the first beamformer (105) and the second beamformer (106) into a combined signal (XC); wherein the signals are combined such that signal energy in the combined signal is minimized while a desired signal is preserved; and a noise reduction unit (109) configured to process the combined signal (XC) from the third beamformer (107) and output the combined signal such that noise is reduced.
Public/Granted literature
- US20150170632A1 Headset And A Method For Audio Signal Processing Public/Granted day:2015-06-18
Information query
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