Title:
サンプリングレート変換
Document Type and Number:
Japanese Patent JP5541832
Kind Code:
B2
Abstract:
The present invention relates to a method for processing an input signal (x(n)) of a first sampling rate that comprises the steps of up-sampling (1) the input signal (x(n)) to obtain an up-sampled signal (x L (n)), low-pass filtering (2) the up-sampled signal (x L (n)) to obtain a first filtered up- sampled signal (y L (n)), time-delaying (3) the up-sampled signal (x L (n)) and subsequently low-pass filtering (4) the time-delayed up-sampled signal (x L (n-1)) to obtain a second filtered up-sampled signal (y L (n-1)), weighting the first filtered up-sampled signal (y L (n)) by a first weight factor to obtain a first weighted signal, weighting the second filtered up-sampled signal (y L (n-1)) by a second weight factor different from the first weight factor to obtain a second weighted signal, and adding the first weighted signal and the second weighted signal to obtain an output signal (v L (n)) of a second sampling rate different from the first sampling rate.
Inventors:
Gerhard Uwe Schmidt
Mohammed クリニ
Martin Low slur
Mohammed クリニ
Martin Low slur
Application Number:
JP2007014341A
Publication Date:
July 09, 2014
Filing Date:
January 24, 2007
Export Citation:
Assignee:
Nuance Communications and in condominium lei テッド
International Classes:
H03H17/00
Attorney, Agent or Firm:
Shusaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita