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function test_failed=test_filterbankscale()
test_failed = 0;
disp('----------FILTERBANKSCALE-----------');
gr{1}=randn(20,1);
gr{2}=randn(21,1);
gr{3}=firfilter('hanning',19);
gr{4}=firfilter('hanning',20);
gr{5}=randn(4,1);
gr{6}=firfilter('hanning',20,'causal');
gr{7}=firfilter('hanning',20,'delay',13);
gr{8}=firfilter('hanning',20,'delay',-13);
gr{7}=firfilter('hanning',20,'delay',14);
gr{8}=firfilter('hanning',20,'delay',-14);
gr{9}=firfilter('hamming',19,.3);
gr{10}=firfilter('hamming',19,.3,'real');
gr{11}=blfilter('hanning',.19);
gr{12}=blfilter('hanning',.2);
gr{13}=blfilter('hanning',.132304);
gr{14}=blfilter('hanning',.23,'delay',13);
gr{15}=blfilter('hamming',.23,.3);
gr{16}=blfilter('hamming',.23,.3,'real');
% (almost) Allpass filter
gr{17}=blfilter('hanning',2);
gr{18}=blfilter('hanning',1);
gr{19}=blfilter('hanning',2,1);
gr{20}=blfilter('hanning',1,-1);
gr{21}=blfilter('hamming',.1,-.3);
gr{22}=blfilter('hanning',1.7);
gr{23}=struct('H',randn(10,1),'L',100);
gr{24}=crand(40,1);
gr{25}=struct('h',crand(40,1));
gr{26}=struct('h',crand(40,1),'realonly',1);
Larr = [100, 211];
norms = {'1','2','inf'};
for L = Larr
gr{23}=struct('H',randn(10,1),'L',L);
for ii = 0:1
if ii==0, freqstr = ''; freqflag = 'nofreq';
else freqstr = 'FREQ'; freqflag = 'freq'; end
for nId = 1:numel(norms)
g = filterbankscale(gr,L,norms{nId},freqflag);
if ii == 0
[~,n] = normalize(ifft(filterbankfreqz(g,1,L)),norms{nId});
else
[~,n] = normalize(filterbankfreqz(g,1,L),norms{nId});
end
res = sum(abs(n-1));
[test_failed,fail]=ltfatdiditfail(res,test_failed);
fprintf('NORM: %s %s L=%d %s\n',upper(norms{nId}),freqstr,L,fail);
end
end
end
scal = 0.1;
for L = Larr
gr{23}=struct('H',randn(10,1),'L',L);
for nId = 1:numel(norms)
grfreqz = filterbankfreqz(gr,1,L);
g = filterbankscale(gr,scal);
gfreqz = filterbankfreqz(g,1,L);
res = sum(sum(scal*grfreqz-gfreqz));
[test_failed,fail]=ltfatdiditfail(res,test_failed);
fprintf('SCALE %f L=%d %s\n',scal,L,fail);
end
end
%-*- texinfo -*-
%@deftypefn {Function} test_filterbankscale
%@verbatim
%@end verbatim
%@strong{Url}: @url{http://ltfat.github.io/doc/testing/test_filterbankscale.html}
%@end deftypefn
% Copyright (C) 2005-2016 Peter L. Soendergaard <peter@sonderport.dk>.
% This file is part of LTFAT version 2.2.0
%
% This program is free software: you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation, either version 3 of the License, or
% (at your option) any later version.
%
% This program is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with this program. If not, see <http://www.gnu.org/licenses/>.
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