view dsp/oggwin.m @ 34:c75bb62b90a9

Imported audio synthesis tools.
author samer
date Sun, 20 Jan 2013 19:05:05 +0000
parents c3b0cd708782
children
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% OGGWIN Ogg-vorbis window.
%   y = oggwin(N)
%
%   Used in MDCT transform for TDAC
%   The window used in Ogg-Vorbis open source codec
%
%   N: length of window to create
%   y: the window in column

% ------- oggwin.m -----------------------------------------
% Marios Athineos, marios@ee.columbia.edu
% http://www.ee.columbia.edu/~marios/
% Copyright (c) 2004 by Columbia University.
% All rights reserved.
% ----------------------------------------------------------

function y = oggwin(N)
x = (0:(N-1)).';
y = sin(0.5*pi*sin(pi*(x+0.5)/N).^2);