Method and system for monitoring and reporting speaker health
AssigneeDolby Laboratories Licensing Corporation
InventorsLuca Revelli, William Joseph Dymek
Life of this patent
Estimating the term…
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AssigneeDolby Laboratories Licensing Corporation
InventorsLuca Revelli, William Joseph Dymek
Estimating the term…
A method is provided, including: defining a plurality of frequency bins; sending, during a training phase, a test signal at different amplitude levels to one or more speakers, and gathering resulting test voltage (V) and current (I) points for the different amplitude levels and for each frequency bin; for each frequency bin, applying a linear regression algorithm to the gathered test voltage and current points for the different amplitudes to obtain a reference electrical impedance of said one or more speakers; sending, during a monitoring phase subsequent to said training phase, an audio signal to said one or more speakers, and gathering resulting new voltage and current points to obtain an operating electrical impedance for said one or more speakers for each frequency bin, determining a deviation between the operating and the reference electrical impedance, and, if the deviation exceeds a defined tolerance, reporting the deviation to a user.
A method comprising:
An apparatus, comprising:
Dependencies are inferred from the claim text.