Updated itaHRTF tutorial

applications/Binaural-HRTF/HRTF_class/ita_itaHRTF_examples.m

@@ -41,7 +41,7 @@ HRTF_find.play_gui(pinkNoise);
 
 %% Binaural parameters
 ITD = slicePhi.ITD;  % different methods are available: see method in itaHRTF
-ILD = slicePhi.ILD;
+%ILD = slicePhi.ILD;
  
 %% Modifications
 % calculate DTF
@@ -65,8 +65,12 @@ HRTF_interp = HRTF_sphere.interp(coordI);
 nameDaff_file = 'HRTF_sphere.daff';
 HRTF_sphere.writeDAFFFile(nameDaff_file);
 
-HRTF_daff = itaHRTF('daff',nameDaff_file);
+%HRTF_daff = itaHRTF('daff',nameDaff_file);
 
-nameDaff_file2 = 'C:\Users\bomhardt\Documents\ITA-Toolbox\applications\TODOunfinished\test_marcia\DATA\HRTF_ITAKopf_Nov2013_MartinPollow\ITA-Kunstkopf_HRIR_Mess01_D180_1x1_256.daff';
-HRTF_daff2 = itaHRTF('daff',nameDaff_file2);
-HRTF_daff2.plot_freqSlice
+nameDaff_file2 = 'yourHRTF.daff';
+if ~strcmp(nameDaff_file2,'yourHRTF.daff')
+    HRTF_daff2 = itaHRTF('daff',nameDaff_file2);
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+    HRTF_daff2.plot_freqSlice
+else
+   ita_disp('use an existing daff-file') 
+end
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tutorials/ita_tutorial_itaHRTF.m

+% <ITA-Toolbox>
+% This file is part of the application HRTF_class for the ITA-Toolbox. All rights reserved.
+% You can find the license for this m-file in the application folder.
+% </ITA-Toolbox>
+%% Init object
+coord   =  ita_sph_sampling_equiangular(11,36);
+coord.r = 0.1;
+pSphere = test_rbo_pressureSphere('sph',coord,'fftDeg',8);
+
+HRTF_sphere    = ita_time_shift(itaHRTF(pSphere),pSphere.trackLength/2,'time');
+
+%% Find Functions 
+coordF          = itaCoordinates([1 pi/2 pi/2; 1 pi/2 pi/4],'sph');
+
+HRTF_find       = HRTF_sphere.findnearestHRTF(coordF); % findet das Objekt zu den gegebenen Koordinaten
+HRTF_dir        = HRTF_sphere.direction([11 15 17]); % wie itaAudio.ch(x) nur fr itaHRTF
+
+% Slice of the TF function
+slicePhi        = HRTF_sphere.sphericalSlice('theta_deg',90);
+sliceTheta      = HRTF_sphere.sphericalSlice('phi_deg',0);
+
+%% Plot Functions 
+% plot frequency domain in dependence of the angle (elevation or azimuth)
+sliceTheta.plot_freqSlice
+pause(5)
+close gcf
+slicePhi.plot_freqSlice('earSide','R')
+pause(5)
+close gcf
+
+% plot ITD
+slicePhi.plot_ITD('method','xcorr','plot_type','line')
+
+% plot time or freq. domain
+HRTF_find.pt
+HRTF_find.pf
+HRTF_find.getEar('R').pf
+%% Play gui
+pinkNoise = ita_generate('pinknoise',1,44100,12)*10;
+HRTF_find.play_gui(pinkNoise); 
+
+%% Binaural parameters
+ITD = slicePhi.ITD;  % different methods are available: see method in itaHRTF
+%ILD = slicePhi.ILD;
+ 
+%% Modifications
+% calculate DTF
+DTF_sphere = HRTF_sphere.calcDTF;
+
+HRTFvsDTF = ita_merge(DTF_sphere.findnearestHRTF(90,90),HRTF_sphere.findnearestHRTF(90,90));
+HRTFvsDTF.pf
+legend('DTF left','DTF right','HRTF left','HRTF right')
+
+% interpolate HRTF
+phiI     = deg2rad(0:5:355);
+thetaI   = deg2rad(15:15:90);
+[THETA_I, PHI_I] = meshgrid(thetaI,phiI);
+rI       = ones(numel(PHI_I),1);
+coordI   = itaCoordinates([rI THETA_I(:) PHI_I(:)],'sph'); % itaCoordinates object
+
+HRTF_interp = HRTF_sphere.interp(coordI);
+
+
+%% Write and init
+nameDaff_file = 'HRTF_sphere.daff';
+HRTF_sphere.writeDAFFFile(nameDaff_file);
+
+%HRTF_daff = itaHRTF('daff',nameDaff_file);
+
+nameDaff_file2 = 'yourHRTF.daff';
+if ~strcmp(nameDaff_file2,'yourHRTF.daff')
+    HRTF_daff2 = itaHRTF('daff',nameDaff_file2);
+    HRTF_daff2.plot_freqSlice
+else
+   ita_disp('use an existing daff-file') 
+end
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