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US09124962B2 Wind noise suppressor, semiconductor integrated circuit, and wind noise suppression method 有权
风噪声抑制器，半导体集成电路和风噪声抑制方法

  • Patent Title: Wind noise suppressor, semiconductor integrated circuit, and wind noise suppression method
  • Patent Title (中): 风噪声抑制器，半导体集成电路和风噪声抑制方法
  • Application No.: US13458313
    Application Date: 2012-04-27
  • Publication No.: US09124962B2
    Publication Date: 2015-09-01
  • Inventor: Mutsumi Saito
  • Applicant: Mutsumi Saito
  • Applicant Address: JP Kawasaki
  • Assignee: FUJITSU LIMITED
  • Current Assignee: FUJITSU LIMITED
  • Current Assignee Address: JP Kawasaki
  • Agency: Fujitsu Patent Center
  • Priority: JP2011-106394 20110511
  • Main IPC: H04B15/00
  • IPC: H04B15/00 ;  H04R3/00
Wind noise suppressor, semiconductor integrated circuit, and wind noise suppression method
Abstract:
In a wind noise suppressor, a divider divides the frequency band an input sound into a first frequency band having a possibility that wind noise is included and a second frequency band having a frequency higher than a frequency of the first frequency band, a calculator calculates a probability that the input sound includes wind noise from feature parameters of a sound in the first frequency band, a suppressor suppresses wind noise included in the first frequency band in accordance with an intensity calculated from the probability, and an adder mixes and outputs the sound in the second frequency band divided by the divider and the sound in the first frequency band by which wind noise is suppressed by the suppressor.
Abstract(Chinese):

在风噪声抑制器中，分频器将频带将输入声音分成具有包括风噪声的可能性的第一频带和具有高于第一频带的频率的频率的第二频带，计算器计算 输入声音包括来自第一频带中的声音的特征参数的风噪声的概率，抑制器根据从概率计算出的强度来抑制包括在第一频带中的风噪声，并且加法器将 由分频器分割的第二频带和由抑制器抑制风噪声的第一频带中的声音。

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