×

SYSTEMS AND METHODS FOR PROVIDING ADAPTIVE PLAYBACK EQUALIZATION IN AN AUDIO DEVICE

  • US 20150161980A1
  • Filed: 12/10/2013
  • Published: 06/11/2015
  • Est. Priority Date: 12/10/2013
  • Status: Active Grant
First Claim
Patent Images

1. A personal audio device comprising:

  • a personal audio device housing;

    a transducer coupled to the housing for reproducing an output audio signal including an equalized source audio signal for playback to a listener and an anti-noise signal for countering the effects of ambient audio sounds in an acoustic output of the transducer;

    an error microphone coupled to the housing in proximity to the transducer for providing an error microphone signal indicative of the acoustic output of the transducer and the ambient audio sounds at the transducer;

    one or more processing circuits that implement;

    a noise cancellation system that generates the anti-noise signal to reduce the presence of the ambient audio sounds heard by the listener based at least on the error microphone signal; and

    an adaptive playback equalization system that generates the equalized source audio signal from a source audio signal by adapting, based at least on the error microphone signal, a response of the adaptive playback equalization system to minimize a difference between the source audio signal and the error microphone signal.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×