DECISIONS ON AMBIENT NOISE SUPPRESSION IN A MOBILE COMMUNICATIONS HANDSET DEVICE
First Claim
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1. A method for audio signal processing in a near end user'"'"'s communications device, comprising:
- producing a plurality of audio signals that represent sound pick up at the user'"'"'s device;
performing a beam forming process using the audio signals to produce an uplink audio signal; and
detecting that the near-end user'"'"'s device has moved from an at-the-ear position to an away-from-the-ear position, and in response changing the beam forming process from omnidirectional microphone sensing to far-field microphone beam forming.
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Abstract
A method in a communications device includes the following operations. During a call, a process automatically detects that the device has moved from an at-the-ear position to an away-from-the-ear position. Based on the detection, a noise suppressor that operates upon an uplink signal for the call is signaled to change its noise suppression performance. Other embodiments are also described and claimed.
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Citations
8 Claims
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1. A method for audio signal processing in a near end user'"'"'s communications device, comprising:
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producing a plurality of audio signals that represent sound pick up at the user'"'"'s device; performing a beam forming process using the audio signals to produce an uplink audio signal; and detecting that the near-end user'"'"'s device has moved from an at-the-ear position to an away-from-the-ear position, and in response changing the beam forming process from omnidirectional microphone sensing to far-field microphone beam forming. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A user communications device, comprising:
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a radio; a plurality of microphones to produce a plurality of audio signals that represent sound pick up at the device; an uplink audio signal processor to deliver an uplink audio signal to the radio, the processor having a microphone beam former whose input is coupled to receive the plurality of audio signals and whose output is to provide the uplink audio signal; and decision logic to automatically detect that a user has moved the device between an at-the-ear position and an away-from-the-ear position, and to signal the beam former to change between omnidirectional microphone sensing and far-field microphone beam forming. - View Dependent Claims (8)
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Specification