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Headset and a method for audio signal processing
专利权人:
发明人:
Rasmus Kongsgaard Olsson
申请号:
US14566959
公开号:
US09472180B2
申请日:
2014.12.11
申请国别(地区):
US
年份:
2016
代理人:
摘要:
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.
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