| CPC G10L 21/0216 (2013.01) [G06F 1/163 (2013.01); G10L 2021/02166 (2013.01)] | 21 Claims |
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1. A system comprising:
a wearable electronic pendant comprising:
a pendant body having means for suspending the wearable electronic pendant;
at least two pressure sensing microphones housed in the pendant body, the microphones having a substantially vertical alignment relative to a direction of gravity when the wearable electronic pendant is worn by the user; and
circuitry to produce digitized samples of outputs from the at least two microphones; and
means for computing an up channel digital signal and a side channel digital signal from digital samples comprising the digitized samples of the outputs of the at least two microphones, the means for computing including:
forming an upward beam from a first combination of the digital samples;
forming a side beam noise reference from a second combination of the digital samples;
forming a side beam from a third combination of the digital samples;
forming an upward beam noise reference from a fourth combination of the digital samples;
processing the side beam noise reference and the upward beam to form the up channel digital signal which represents sound produced by the wearer of the pendant;
processing the upward beam noise reference and the side beam to form the side channel digital signal which represents sound produced by one or more nearby talkers other than the wearer of the pendant; and
storing the up channel digital signal and side channel digital signal in a non-volatile memory.
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