Invention Grant
- Patent Title: Determining noise and sound power level differences between primary and reference channels
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Application No.: US15730152Application Date: 2017-10-11
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Publication No.: US10332541B2Publication Date: 2019-06-25
- Inventor: Jan S. Erkelens
- Applicant: Cirrus Logic, Inc.
- Applicant Address: US TX Austin
- Assignee: Cirrus Logic, Inc.
- Current Assignee: Cirrus Logic, Inc.
- Current Assignee Address: US TX Austin
- Agency: Dorius Law P.C.
- Agent Kirk Dorius
- Main IPC: G10L25/21
- IPC: G10L25/21 ; G10L21/0232 ; G10L25/12 ; H04R29/00 ; H04R3/00 ; G10L21/0216
Abstract:
A method for estimating and minimizing a noise power level difference (NPLD) between a primary channel and a reference channel of an audio device, includes receiving, by a primary channel, an audio signal that has a speech signal level and a noise signal level; receiving, by a reference channel, the audio signal with another speech signal level and another noise signal level; using the reference channel to estimate the noise signal level in the primary channel by reducing the another speech signal level; and compensating for a difference between the noise signal level and the another noise signal level to minimize a noise power level difference NPLD between the primary channel and the reference channel.
Public/Granted literature
- US20180047412A1 DETERMINING NOISE AND SOUND POWER LEVEL DIFFERENCES BETWEEN PRIMARY AND REFERENCE CHANNELS Public/Granted day:2018-02-15
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