diff multithreshold 1.46/testOME.m @ 0:f233164f4c86

first commit

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/multithreshold 1.46/testOME.m	Fri May 27 13:19:21 2011 +0100
@@ -0,0 +1,85 @@
+function testOME
+
+global experiment
+savePath=path;
+addpath (['..' filesep 'utilities'],['..' filesep 'MAP'])
+
+sampleRate=50000;
+
+dt=1/sampleRate;
+leveldBSPL=80; 		% dB SPL as used by Huber (may trigger AR)
+amp=10^(leveldBSPL/20)*28e-6;
+duration=.05;
+time=dt: dt: duration;
+
+%% Comparison data (human)
+% These data are taken directly from Huber 2001 (Fig. 4)
+HuberFrequencies=[600	  800	 1000	 2000	 3000	4000 6000 8000];
+HuberDisplacementAt80dBSPL=[1.5E-9	1.5E-09	1.5E-09	1.0E-09	7.0E-10	...
+    3.0E-10	2.0E-10	1.0E-10]; % m;
+% HuberVelocityAt80dBSPL= 2*pi*HuberFrequencies.*HuberDisplacementAt80dBSPL;
+
+figure(2), clf, subplot(2,1,1)
+set(2,'position',[5   349   268   327])
+semilogx(HuberFrequencies, 20*log10(HuberDisplacementAt80dBSPL/1e-10),...
+    'ko', 'MarkerFaceColor','k', 'Marker','o', 'markerSize',6)
+% Generate test stimulus .................................................................
+
+%% independent test using discrete frequencies
+peakResponses=[];
+peakTMpressure=[];
+frequencies=[200 400 HuberFrequencies 10000];
+for toneFrequency=frequencies
+    inputSignal=amp*sin(2*pi*toneFrequency*time);
+
+    MAPparamsName=experiment.name;
+    showPlotsAndDetails=0;
+    AN_spikesOrProbability='probability';
+    % switch off AR & MOC (Huber's patients were deaf)
+    paramChanges{1}='OMEParams.rateToAttenuationFactorProb=0;';
+    paramChanges{2}='DRNLParams.rateToAttenuationFactorProb = 0;';
+
+    global OMEoutput  OMEextEarPressure TMoutput ARAttenuation
+    % BF is irrelevant
+    MAP1_14(inputSignal, sampleRate, -1, ...
+        MAPparamsName, AN_spikesOrProbability, paramChanges);
+
+    peakDisplacement=max(OMEoutput(floor(end/2):end));
+    peakResponses=[peakResponses peakDisplacement];
+
+    peakTMpressure=[peakTMpressure max(OMEextEarPressure)];
+    disp([' greatest AR attenuation:   ' num2str(min(ARAttenuation))])
+end
+
+%% Report
+disp('frequency displacement(m)')
+% disp(num2str([frequencies' peakResponses']))
+fprintf('%6.0f \t%10.3e\n',[frequencies' peakResponses']')
+
+% stapes peak displacement
+figure(2), subplot(2,1,1), hold on
+semilogx(frequencies, 20*log10(peakResponses/1e-10), 'r', 'linewidth',4)
+% ylim([1e-11 1e-8])
+xlim([100 10000]), ylim([0 30])
+grid on
+title(['stapes at ' num2str(leveldBSPL) ' (NB deaf)'])
+ylabel('disp: dB re 1e-10m')
+xlabel('stimulus frequency (Hz)')
+legend({'Huber et al','model'},'location','southWest')
+set(gcf,'name','OME')
+
+% external ear resonance
+figure(2), subplot(2,1,2),hold off
+semilogx(frequencies, 20*log10(peakTMpressure/28e-6)-leveldBSPL,...
+    'k', 'linewidth',2)
+xlim([100 10000]) %, ylim([-10 30])
+grid on
+title(['External ear resonances' ])
+ylabel('dB')
+xlabel('frequency')
+set(gcf,'name','OME: external resonances')
+% ---------------------------------------------------------- display parameters
+disp(['parameter file was: ' experiment.name])
+fprintf('\n')
+
+path(savePath);
\ No newline at end of file