Digital Xoover with infinite slope

danyele · 17th March 2007, 11:33 AM

Using a PC it's possible to make a xoover with infinite slope (cutting the FFT of the signal).
someone have use this method in a sistem?

With this metod ther aren't interfecences between the loudspeakers.

danyele · 17th March 2007, 11:47 AM

Calculating the fft of the signal it's possible to cut the fft of the signal and calculating the i-fft we have the signal cutted with infinite slope and without modify the fase.
Ther'are a problems with this method?

el`Ol · 17th March 2007, 01:37 PM

I guess there won`t be a perfect matching between the two ways and so there will be FFT artefacts (ringing). Probably you are better off with eliptic filters.

17th March 2007, 11:33 AM	#1
danyele diyAudio Member Join Date: Sep 2006	Digital Xoover with infinite slope Using a PC it's possible to make a xoover with infinite slope (cutting the FFT of the signal). someone have use this method in a sistem? With this metod ther aren't interfecences between the loudspeakers.

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17th March 2007, 11:47 AM	#2
danyele diyAudio Member Join Date: Sep 2006	Calculating the fft of the signal it's possible to cut the fft of the signal and calculating the i-fft we have the signal cutted with infinite slope and without modify the fase. Ther'are a problems with this method?

17th March 2007, 01:37 PM	#3
el`Ol diyAudio Member Join Date: May 2005 Location: Bavarian Forest	I guess there won`t be a perfect matching between the two ways and so there will be FFT artefacts (ringing). Probably you are better off with eliptic filters.