发明名称 |
SELECTIVE ADAPTIVE AUDIO CANCELLATION ALGORITHM CONFIGURATION |
摘要 |
Audio processing devices and methods. An ambient microphone picks up ambient sound and a voice microphone picks up a speaker's voice. The voice microphone is located farther from the speaker's mouth when a device is held to one side of the speaker's face than when held to the other side. A signal indicates whether an expected position of the handheld body is a position on a left side or right side of a speaker's face. Ambient sound in the voice signal is reduced by applying a first algorithm configuration selected to process voice signals with lower signal-to-noise ratio when the expected position in on one side of the speaker's face, and by applying a second sound cancellation algorithm configuration selected to process higher signal-to-noise ratios when the expected position is on the other side of the speaker's face.
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申请公布号 |
CA2809468(A1) |
申请公布日期 |
2013.09.15 |
申请号 |
CA20132809468 |
申请日期 |
2013.03.12 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
MOQUIN, PHILIPPE GILBERT JACQUES JOSEPH |
分类号 |
H04R3/00;G10K11/178;H04R1/08 |
主分类号 |
H04R3/00 |
代理机构 |
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