freeswitch/libs/libcodec2/octave/plnlp.m
2010-09-21 12:35:41 -05:00

135 lines
2.8 KiB
Matlab

% Copyright David Rowe 2009
% This program is distributed under the terms of the GNU General Public License
% Version 2
%
% Plot NLP states from dump files.
function plnlp(samname, f)
sn_name = strcat(samname,"_sn.txt");
Sn = load(sn_name);
sw_name = strcat(samname,"_sw.txt");
Sw = load(sw_name);
fw_name = strcat(samname,"_fw.txt");
if (file_in_path(".",fw_name))
fw = load(fw_name);
endif
e_name = strcat(samname,"_e.txt");
if (file_in_path(".",e_name))
e = load(e_name);
endif
p_name = strcat(samname,".p");
if (file_in_path(".",p_name))
p = load(p_name);
endif
sq_name = strcat(samname,"_sq.txt");
if (file_in_path(".",sq_name))
sq = load(sq_name);
endif
dec_name = strcat(samname,"_dec.txt");
if (file_in_path(".",dec_name))
dec = load(dec_name);
endif
do
figure(1);
clf;
s = [ Sn(2*f-1,:) Sn(2*f,:) ];
plot(s, ";Sn;");
grid
axis([1 length(s) -20000 20000]);
figure(2);
plot((0:255)*4000/256, Sw(f,:),";Sw;");
grid
axis([1 4000 -10 80]);
hold on;
f0 = 8000/p(f);
Wo = 2*pi/p(f);
L = floor(pi/Wo);
f0_label = sprintf("b;P=%3.1f F0=%3.0f;",p(f),f0);
for m=1:L-1
plot([ m*Wo*4000/pi m*Wo*4000/pi], [10 60], 'b');
endfor
plot([ L*Wo*4000/pi L*Wo*4000/pi], [10 60], f0_label);
hold off;
if (file_in_path(".",fw_name))
figure(3);
if (file_in_path(".",e_name))
subplot(211);
endif
plot((0:255)*800/256, fw(f,:)/max(fw(f,:)), ";Fw;");
axis([1 400 0 1]);
if (file_in_path(".",e_name))
subplot(212);
e_concat = [ e(2*f-1,:) e(2*f,:) ];
plot(e_concat(1:400)/max(e_concat(1:400)), "+;MBE E(f);");
axis([1 400 0 1]);
endif
endif
if (file_in_path(".",sq_name))
figure(4);
sq_concat = [ sq(2*f-1,:) sq(2*f,:) ];
axis
plot(sq_concat, ";sq;");
endif
if (file_in_path(".",dec_name))
figure(5);
plot(dec(f,:), ";dec;");
endif
figure(2);
% interactive menu
printf("\rframe: %d menu: n-next b-back p-png q-quit ", f);
fflush(stdout);
k = kbhit();
if (k == 'n')
f = f + 1;
endif
if (k == 'b')
f = f - 1;
endif
% optional print to PNG
if (k == 'p')
pngname = sprintf("%s_%d",samname,f);
% small image
__gnuplot_set__ terminal png size 420,300
ss = sprintf("__gnuplot_set__ output \"%s.png\"", pngname);
eval(ss)
replot;
% larger image
__gnuplot_set__ terminal png size 800,600
ss = sprintf("__gnuplot_set__ output \"%s_large.png\"", pngname);
eval(ss)
replot;
% for some reason I need this to stop large plot getting wiped
__gnuplot_set__ output "/dev/null"
endif
until (k == 'q')
printf("\n");
endfunction