Invention Grant
- Patent Title: Ambient noise aware dynamic range control and variable latency for hearing personalization
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Application No.: US17866735Application Date: 2022-07-18
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Publication No.: US11978469B1Publication Date: 2024-05-07
- Inventor: John Woodruff , Yang Lu , Tom-Davy W. Saux
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Aikin & Gallant, LLP
- The original application number of the division: US15931394 2020.05.13
- Main IPC: H04R29/00
- IPC: H04R29/00 ; G10L21/0232 ; G10L21/0316 ; G10L25/51 ; G10L25/84 ; H04R1/40 ; H04R3/00

Abstract:
Signal to noise ratio, SNR, is determined in an acoustic ambient environment of an against-the-ear audio device worn by a user, wherein the acoustic ambient environment contains speech by a talker. When the SNR is above a threshold, dynamic range control is applied, as positive gain versus input level, to an audio signal from one or more microphones of the audio device. When the SNR is below the threshold, the dynamic range control applies as zero gain or negative gain to the audio signal. Other aspects are also described and claimed.
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