Invention Grant
US08948428B2 Hearing aid with histogram based sound environment classification 有权
助听器基于直方图的声音环境分类

  • Patent Title: Hearing aid with histogram based sound environment classification
  • Patent Title (中): 助听器基于直方图的声音环境分类
  • Application No.: US12440213
    Application Date: 2007-09-04
  • Publication No.: US08948428B2
    Publication Date: 2015-02-03
  • Inventor: James Mitchell Kates
  • Applicant: James Mitchell Kates
  • Applicant Address: DK Ballerup
  • Assignee: GN Resound A/S
  • Current Assignee: GN Resound A/S
  • Current Assignee Address: DK Ballerup
  • Agency: Vista IP Law Group, LLP
  • Priority: DK200601140 20060905
  • International Application: PCT/DK2007/000393 WO 20070904
  • International Announcement: WO2008/028484 WO 20080313
  • Main IPC: H04R25/00
  • IPC: H04R25/00 G10L25/00 G10L25/78
Hearing aid with histogram based sound environment classification
Abstract:
A hearing aid includes a microphone and an A/D converter for provision of a digital input signal in response to a sound signal received at the microphone in a sound environment, a processor that is configured to process the digital input signal in accordance with a signal processing algorithm to generate a processed output signal, a sound environment detector for determination of the sound environment based at least in part on the digital input signal, and for providing an output for selection of the signal processing algorithm, the sound environment detector including (1) a feature extractor for determination of histogram values of the digital input signal in a plurality of frequency bands, (2) an environment classifier configured for classifying the sound environment into a number of environmental classes based at least in part on the determined histogram values from at least two of the plurality of frequency bands, and (3) a parameter map for the provision of the output for the selection of the signal processing algorithm, and a D/A converter and an output transducer for conversion of the processed output signal to an acoustic output signal.
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