Subject: Re: Is correlation any good for pitch perception? From: Ramdas Kumaresan <kumar(at)ELE.URI.EDU> Date: Mon, 19 Jan 2004 10:37:59 -0500--------------060807010504030202080202 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit > >Please do not equate spectrum and correlation. As Gerald Langner has shown: >Cepstrum/ACF/periodicity on the one hand and spectrum on the other hand are >two orthogonal representations of the same signal. > >Sincerely, >Eckard Blumschein > I wonder why ACF and spectrum are orthogonal representations and how did Langner demonstrate that? Ramdas Kumaresan --------------060807010504030202080202 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit <html> <head> </head> <body> <br> <blockquote type="cite" cite="mid:3.0.5.32.20040119094436.00bb3d98(at)dfnserv1.urz.uni-magdeburg.de"> <blockquote type="cite"></blockquote> <pre wrap=""><!----><br>Please do not equate spectrum and correlation. As Gerald Langner has shown:<br>Cepstrum/ACF/periodicity on the one hand and spectrum on the other hand are<br>two orthogonal representations of the same signal.<br><br>Sincerely,<br>Eckard Blumschein<br></pre> </blockquote> I wonder why ACF and spectrum are orthogonal representations and how did Langner demonstrate that?<br> <br> Ramdas Kumaresan<br> </body> </html> --------------060807010504030202080202--