Re: discuss [bug #43305] Hamming etc. windows are wrong

[Doug Stewart]

On Tue, Dec 30, 2014 at 3:35 PM, Julien Bect <address@hidden> wrote:

Le 30/12/2014 19:58, Doug Stewart a écrit :

  I dont have Matlab so, would someone run
 hann(8) on matlab and see if the first number is non zero?

% Matlab R2012a

>> format long
>> hann(8)

ans =

                   0
   0.188255099070633
   0.611260466978157
   0.950484433951210
   0.950484433951210
   0.611260466978157
   0.188255099070633
                   0

--

Thanks Julien

 

So wikipedia is wrong in the graphs that show the 3 curves. 

I will put together some graphs and FFT pictures of what is happening.

Doug

 Julien  you might be interested in my error messages

pkg install -forge ltfat

configure: WARNING: Portaudio lib not found. Disabling support of the block processing framework.

ar: creating libltfat.a

ar: creating libltfatf.a

warning: doc_cache_create: unusable help text found in file'playrec'

For information about changes from previous versions of theltfat package, run 'news ltfat'.

--

DAS