[PD] normalizing hann window

[Charles Henry]

On Fri, Oct 12, 2012 at 4:59 PM, Alexandre Torres Porres
<porres at gmail.com> wrote:
> hi there, in pd's examples, we need to divide by (3/2 * window size) in a 4
> overlap on a hann window.
>
> what about other overlaps, what is the normalizing factor?
>
> and how about other windows?
>
> I looked for this info on books and google and stuff, found nothing.
>
> Engineers, please help.
>
> thanks
> Alex

I'm not exactly sure why it's used either.  If you were using a
overlap of 2 and used hann windows that cover each block, you would
get back the exact signal after applying overlap-and-add with no
additional normalization.

So, for the same scheme and overlap 4, it stands to reason that you'd
only divide by 2 and recover the original signal as well.

What's the window size like relative to the block size?  same/different?

Some other engineer--please help.

Chuck