Release 5.9.0: Saved Query Alerts, Query Details, Collection Sizes and more!

Saved Query Alerts.

Receive a notification email when new data is added for your saved queries.

Query Details Improvements.

View details of your joined query when navigating between cited/citing panes.

Collection Limit Increase.

Create collections of up to 50,000 Patents or Scholarly Works.

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

  • Published: Jun 6, 2013
  • Family: 9
  • Cited Works: 0
  • Cited by: 16
  • Cites: 21
  • Additional Info: Full text
Abstract

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.


Claims
Download PDF
Document Preview
Document History
  • Publication: Jun 6, 2013
  • Application: Aug 11, 2011
    US US 201113814615 A
  • Priority: Aug 11, 2011
    US US 201113814615 A
  • Priority: Aug 11, 2011
    US US 2011/0047333 W
  • Priority: Aug 18, 2010
    US US 40174610 P

Sign in to the Lens