ACF of a rectangle (Christian Kaernbach )


Subject: ACF of a rectangle
From:    Christian Kaernbach  <mailinglist(at)KAERNBACH.DE>
Date:    Tue, 20 Jan 2004 08:54:56 +0100

Eckard Blumschein wrote: > The spectrum of the pure tone is a single frequency. Its ACF resembles a > comb. It sounds harmonical. > > The spectrum of the rectangle is comb-like. Its ACF is a single > autocorrelation lag. It sounds sharp. The energy spectrum of a periodic rectangle waveform is "comb-like" with peaks decreasing as 1/n^2 (odd peaks only). The second peak is 1/9 of the first. A short comb, indeed... The ACF of a periodic rectangle waveform is a periodic triangluar waveform. Best, Christian Kaernbach


This message came from the mail archive
http://www.auditory.org/postings/2004/
maintained by:
DAn Ellis <dpwe@ee.columbia.edu>
Electrical Engineering Dept., Columbia University