---

From: Hans-Christoph Steiner <hans@at.or.at>
To: pd-list@iem.at
Sent: Wednesday, 24 October 2012, 2:48
Subject: Re: [PD] windowing extended objetcs, mistakes on help files and how to make them into vanilla patches

I don't quite follow, but if you think there are bugs in the windowing
objects, you should file a bug report.

.hc

On 10/16/2012 05:03 PM, Alexandre Torres Porres wrote:
> seem to have nailed the gaussian window, but with different width values
> than the object.
>
> 2012/10/16 Alexandre Torres Porres <porres@gmail.com>
>
>> Hi there, I was studying the window functions for FFT, so I was trying to
>> build into vanilla pacthes the window functions that come on Pd-Extended
>> [windowing] package. I got to do them all, but kaiser~ and gaussian~
>>
>> Do any of you feel capable to perform this ver nerdy taks?
>>
>> Well, anyway, here are some inconsistencies/mistakes I found ont the
>> description of the formulas that are present in the help of those external
>> objetcts:
>>
>> - blackman~ instead of 0.8 it should be 0.08
>>
>> - welch formula: 1-abs(x) - not sure, but doesn't seem to be right or
>> clear. I used this one: http://paulbourke.net/miscellaneous/windows/
>>
>> - barlett~: 1-x^2 doesn't seem to be right or clear either, I used this
>> one: http://mathworld.wolfram.com/ApodizationFunction.html
>>
>> - connes~: cos(pi*x/2) - it's the same as cosine~ so it can't be right, I
>> used the above link again.
>>
>> Cheers
>> Alex
>>
>>
>>
>>
>
>
>
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