Invention Grant
- Patent Title: Audio device and method of audio processing with improved talker discrimination
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Application No.: US16570924Application Date: 2019-09-13
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Publication No.: US11264014B1Publication Date: 2022-03-01
- Inventor: Iain McNeill , Matthew Neves , Gavin Radolan
- Applicant: Plantronics, Inc.
- Applicant Address: US CA Santa Cruz
- Assignee: Plantronics, Inc.
- Current Assignee: Plantronics, Inc.
- Current Assignee Address: US CA Santa Cruz
- Agency: Slayden Grubert Beard PLLC
- Main IPC: G10L15/20
- IPC: G10L15/20 ; G10L25/21 ; G10L15/22 ; G10L25/84 ; G10L25/18

Abstract:
An audio device for improved talker discrimination is provided. To improve suppression of close talker interference, i.e., of a person talking in close proximity to the user of the audio device, the audio device comprises at least an audio input to receive a voice input signal; a filter bank, configured to provide a plurality of sub-band signals from the voice input signal; a multi-band audio expander, arranged to receive at least a group of the sub-band signals and configured to conduct audio expansion on the group of sub-band signals to provide gain-controlled sub-band signals; and an audio output, configured to provide a voice output signal from at least the gain-controlled sub-band signals.
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