diff userProgramsTim/Pavel_MAP1_14.m @ 38:c2204b18f4a2 tip

End nov big change

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/userProgramsTim/Pavel_MAP1_14.m	Mon Nov 28 13:34:28 2011 +0000
@@ -0,0 +1,189 @@
+function Pavel_MAP1_14
+% test_MAP1_14 is a general purpose test routine that can be adjusted to
+% test a number of different applications of MAP1_14
+%
+% A range of options are supplied in the early part of the program
+%
+% One use of the function is to create demonstrations; filenames <demoxx>
+%  to illustrate particular features
+%
+% #1
+% Identify the file (in 'MAPparamsName') containing the model parameters
+%
+% #2
+% Identify the kind of model required (in 'AN_spikesOrProbability').
+%  A full brainstem model (spikes) can be computed or a shorter model
+%  (probability) that computes only so far as the auditory nerve
+%
+% #3
+% Choose between a tone signal or file input (in 'signalType')
+%
+% #4
+% Set the signal rms level (in leveldBSPL)
+%
+% #5
+% Identify the channels in terms of their best frequencies in the vector
+%  BFlist.
+%
+% Last minute changes to the parameters fetched earlier can be made using
+%  the cell array of strings 'paramChanges'.
+%  Each string must have the same format as the corresponding line in the
+%  file identified in 'MAPparamsName'
+%
+% When the demonstration is satisfactory, freeze it by renaming it <demoxx>
+
+restorePath=path;
+addpath (['..' filesep 'MAP'],    ['..' filesep 'wavFileStore'], ...
+    ['..' filesep 'utilities'])
+
+%%  #1 parameter file name
+MAPparamsName='Normal';
+
+
+%% #2 probability (fast) or spikes (slow) representation
+AN_spikesOrProbability='spikes';
+
+% or
+% AN_spikesOrProbability='probability';
+% NB probabilities are not corrected for refractory effects
+
+
+%% #3 pure tone, harmonic sequence or speech file input
+signalType= 'tones';
+sampleRate= 100000;
+duration=0.1;                 % seconds
+% toneFrequency= 250:250:8000;    % harmonic sequence (Hz)
+toneFrequency= 1000;            % or a pure tone (Hz8
+rampDuration=.005;              % seconds
+
+% or
+% signalType= 'file';
+% fileName='twister_44kHz';
+
+
+%% #4 rms level
+% signal details
+leveldBSPL= 30;                  % dB SPL
+
+
+%% #5 number of channels in the model
+%   21-channel model (log spacing)
+% numChannels=21;
+% lowestBF=250; 	highestBF= 8000;
+% BFlist=round(logspace(log10(lowestBF), log10(highestBF), numChannels));
+
+%   or specify your own channel BFs
+numChannels=1;
+BFlist=toneFrequency;
+
+
+%% #6 change model parameters
+paramChanges=[];
+
+% or
+% Parameter changes can be used to change one or more model parameters
+%  *after* the MAPparams file has been read
+% This example declares only one fiber type with a calcium clearance time
+% constant of 80e-6 s (HSR fiber) when the probability option is selected.
+% It also removes the speed up that normally takes place for AN spikes
+% It also increases the number of AN fibers computed to 500.
+paramChanges={...
+    'AN_IHCsynapseParams.ANspeedUpFactor=1;', ...
+    'IHCpreSynapseParams.tauCa=86e-6;',...
+    'AN_IHCsynapseParams.numFibers=	500;' };
+
+
+%% delare 'showMap' options to control graphical output
+global showMapOptions
+
+% or (example: show everything including an smoothed SACF output
+showMapOptions.printModelParameters=1;   % prints all parameters
+showMapOptions.showModelOutput=1;       % plot of all stages
+showMapOptions.printFiringRates=1;      % prints stage activity levels
+showMapOptions.showACF=0;               % shows SACF (probability only)
+showMapOptions.showEfferent=0;          % tracks of AR and MOC
+showMapOptions.surfProbability=0;       % 2D plot of HSR response 
+if strcmp(AN_spikesOrProbability, 'spikes')
+    % avoid nonsensical options
+    showMapOptions.surfProbability=0;
+    showMapOptions.showACF=0;
+end
+if strcmp(signalType, 'file')
+    % needed for labeling plot
+    showMapOptions.fileName=fileName;
+else
+    showMapOptions.fileName=[];
+end
+
+%% Generate stimuli
+
+dbstop if error
+restorePath=path;
+addpath (['..' filesep 'MAP'],    ['..' filesep 'wavFileStore'])
+switch signalType
+    case 'tones'
+        inputSignal=createMultiTone(sampleRate, toneFrequency, ...
+            leveldBSPL, duration, rampDuration);
+
+    case 'file'
+        %% file input simple or mixed
+        [inputSignal sampleRate]=wavread(fileName);
+        dt=1/sampleRate;
+        inputSignal=inputSignal(:,1);
+        targetRMS=20e-6*10^(leveldBSPL/20);
+        rms=(mean(inputSignal.^2))^0.5;
+        amp=targetRMS/rms;
+        inputSignal=inputSignal*amp;
+        silence= zeros(1,round(0.1/dt));
+        inputSignal= [silence inputSignal' silence];
+end
+
+
+%% run the model
+tic
+
+fprintf('\n')
+disp(['Signal duration= ' num2str(length(inputSignal)/sampleRate)])
+disp([num2str(numChannels) ' channel model'])
+disp('Computing ...')
+
+
+MAP1_14(inputSignal, sampleRate, BFlist, ...
+    MAPparamsName, AN_spikesOrProbability, paramChanges);
+toc
+
+% the model run is now complete. Now display the results
+% the model run is now complete. Now display the results
+disp(' param changes to list of parameters below')
+for i=1:length(paramChanges)
+    disp(paramChanges{i})
+end
+UTIL_showMAP(showMapOptions)
+
+toc
+path(restorePath)
+
+
+function inputSignal=createMultiTone(sampleRate, toneFrequency, ...
+    leveldBSPL, duration, rampDuration)
+% Create pure tone stimulus
+dt=1/sampleRate; % seconds
+time=dt: dt: duration;
+inputSignal=sum(sin(2*pi*toneFrequency'*time), 1);
+amp=10^(leveldBSPL/20)*28e-6;   % converts to Pascals (peak)
+inputSignal=amp*inputSignal;
+
+% apply ramps
+% catch rampTime error
+if rampDuration>0.5*duration, rampDuration=duration/2; end
+rampTime=dt:dt:rampDuration;
+ramp=[0.5*(1+cos(2*pi*rampTime/(2*rampDuration)+pi)) ...
+    ones(1,length(time)-length(rampTime))];
+inputSignal=inputSignal.*ramp;
+ramp=fliplr(ramp);
+inputSignal=inputSignal.*ramp;
+
+% add 10 ms silence
+silence= zeros(1,round(0.03/dt));
+inputSignal= [silence inputSignal silence];
+