Method And System For Controlling Distortion In A Critical Frequency Band Of An Audio Signal

  • Published: Feb 23, 2012
  • Family: 9
  • Cited: 3
  • Cites: 3
  • Non Patent Citations: 1
  • Info: Full text

In some embodiments, a method and system for controlling distortion of the output of a miniature speaker by attenuating critical frequency band of the input signal to be reproduced, using tuning parameters that have been predetermined where the critical frequency band is a frequency range of the speaker's frequency response in which Total Harmonic Distortion (THD) peaks. The distortion control is performed in a manner which allows an increase in the average loudness of the speaker's output without significantly increasing distortion. The tuning parameters include a center frequency and a bandwidth of the critical frequency band, and a power threshold value. In some embodiments, the system is a loudness maximizer configured to limit distortion of a speaker's output by limiting distortion in a critical frequency band using predetermined control parameters, and limit the dynamic range of the output signal and increase its perceived overall average loudness level.


Information currently unavailable.

Download PDF
Document Preview
Document History
  • Publication: Feb 23, 2012
  • Application: Aug 11, 2011
    WO US 2011/0047333 W
  • Priority: Aug 18, 2010
    US US 40174610 P

Sign in to the Lens