System and method for adaptive control of online extraction of loudspeaker parameters
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United States of America Patent
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Aug 23, 2022
Grant Date -
Jul 1, 2021
app pub date -
Dec 28, 2020
filing date -
Dec 30, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
In at least one embodiment, an audio system for extracting online parameters is provided. The system includes a loudspeaker and at least controller. The loudspeaker transmits an audio signal in a listening environment. The at least one controller includes a signal processing block and an adaptive filter. The signal processing block is programmed to provide a driving signal u(n) to drive the loudspeaker to transmit the audio signal. The adaptive filter is programmed to receive the driving signal and to receive a first varying signal i(n) from the loudspeaker in response to the loudspeaker transmitting audio signal. The adaptive filter is further programmed to generate an admittance curve for the loudspeaker based at least on the driving signal and the first varying signal.
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