On 05/07/2012 09:26 PM, Mike Miller wrote: > On Mon, May 07, 2012 at 08:54:16PM -0500, Daniel J Sebald wrote:
>> Does that produce the result you are expecting James? > > But actually both the current and this behavior do not match ML's > blackmanharris function, at least in the version I have at my disposal. > Can anyone verify? > > I just ran it with a couple different lengths and it always returns an > asymmetric window, whether the length is even or odd. Can't say whether > this is intentional, other window functions seem to be symmetric. As to the question Mike raises, I'm assuming that the desire is a symmetric window as described in the Wiki and in many theoretical discussions. However, the Wiki does say: "A common desire is for an asymmetrical window called DFT-even[6] or periodic, which has a single maximum but an even number of samples (required by the FFT algorithm). Such a window would be generated by the Matlab function hann(512,'periodic'), for instance. Here, that window would be generated by N=513 and discarding the 513th element of the \scriptstyle w(n) sequence." Note that 'periodic' is not interpreted in Octave. Dan ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Octave-dev mailing list Octave-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/octave-dev
