[tremor] Lookup-tables for window function

[timmy brolin]

Why don't you store the table in flash then? Sure, it adds some speed penalty, but so does linear interpolation.

/Timmy

-----Original Message-----
From: Erik Montnémery <d99em at efd.lth.se>
To: <tremor at xiph.org>
Date: Tue, 4 Nov 2003 13:23:17 +0100
Subject: [tremor] Lookup-tables for window function

How are the lookup tables for the window shapes generated? According to the documentation the window shapes are given by y=sin(2*pi*sin^2(x/n)), where n is the window length and x=[0..n/2] but as far as i can tell this is not the case. 
My reason for asking is that I need to minimize memory usage and would like to use linear interpolation of longer windows from shorter shapes instead of storing them in RAM.

Regards, Erik Montnemery

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