Simple non-recursive filters on speech example
Import wav file
Adjust the directory setting and input file below to your system configuration.
![[Graphics:../Images/index_gr_97.gif]](../Images/index_gr_97.gif)
![[Graphics:../Images/index_gr_98.gif]](../Images/index_gr_98.gif)
![[Graphics:../Images/index_gr_99.gif]](../Images/index_gr_99.gif)
![[Graphics:../Images/index_gr_100.gif]](../Images/index_gr_100.gif)
![[Graphics:../Images/index_gr_101.gif]](../Images/index_gr_101.gif)
![[Graphics:../Images/index_gr_102.gif]](../Images/index_gr_102.gif)
![[Graphics:../Images/index_gr_103.gif]](../Images/index_gr_103.gif)
![[Graphics:../Images/index_gr_104.gif]](../Images/index_gr_104.gif)
![[Graphics:../Images/index_gr_105.gif]](../Images/index_gr_105.gif)
![[Graphics:../Images/index_gr_106.gif]](../Images/index_gr_106.gif)
Original wav file
![[Graphics:../Images/index_gr_107.gif]](../Images/index_gr_107.gif)
![[Graphics:../Images/index_gr_108.gif]](../Images/index_gr_108.gif)
Click on the sound plot above to hear the speech signal.
Simple low-pass filter
![[Graphics:../Images/index_gr_109.gif]](../Images/index_gr_109.gif)
![[Graphics:../Images/index_gr_111.gif]](../Images/index_gr_111.gif)
![[Graphics:../Images/index_gr_112.gif]](../Images/index_gr_112.gif)
![[Graphics:../Images/index_gr_113.gif]](../Images/index_gr_113.gif)
Simple high-pass filter
![[Graphics:../Images/index_gr_115.gif]](../Images/index_gr_115.gif)
![[Graphics:../Images/index_gr_116.gif]](../Images/index_gr_116.gif)
Converted by Mathematica
January 17, 2003