WIP adding dry-run option

matlab/VA_example_outdoor_acoustics.m

@@ -7,50 +7,67 @@
 free_field_only = false;
 direct_field_only = false; % with shadowing of edge
 diffracted_field_only = false;
-renderer_id = 'MyBinauralOutdoorNoise';
 
 assert( ~( free_field_only && diffracted_field_only ) )
 assert( ~( free_field_only && direct_field_only ) )
 assert( ~( diffracted_field_only && direct_field_only ) )
 
+receiver_pos = [ 3 0 3 ]; % OpenGL coordinates
+f = ita_ANSI_center_frequencies;
+    
+% House corner
+w = itaInfiniteWedge( [ 1 0 0 ], [ 0 0 -1 ], [ 0 0 0 ] ); % OpenGL coordinates
+   
+
 %% Connect and set up simple scene
-va = VA( 'localhost' );
-va.add_search_path( 'D:/Users/andrew/dev/ITASuite/VA/VACore/data' );
-va.add_search_path( 'D:/Users/andrew/dev/ITASuite/VA/VAMatlab/matlab' );
-va.add_search_path( 'C:/dev/VA/VACore/data' );
-va.add_search_path( 'D:/Users/stienen/dev/VA/VACore/data' );
-va.add_search_path( 'C:/ITASoftware/Raven/RavenDatabase/SoundDatabase' );
-va.add_search_path( 'C:\Users\jonas\sciebo\ITA\Lehre\Masterarbeiten\2019 Henry Andrew\car_pass-by_corner' );
+va = VA;
 
+try
+    
+    va.connect;
+    dry_run = ~va.get_connected;
+    
+    va.add_search_path( 'D:/Users/andrew/dev/ITASuite/VA/VACore/data' );
+    va.add_search_path( 'D:/Users/andrew/dev/ITASuite/VA/VAMatlab/matlab' );
+    va.add_search_path( 'C:/dev/VA/VACore/data' );
+    va.add_search_path( 'D:/Users/stienen/dev/VA/VACore/data' );
+    va.add_search_path( 'C:/ITASoftware/Raven/RavenDatabase/SoundDatabase' );
+    va.add_search_path( 'C:\Users\jonas\sciebo\ITA\Lehre\Masterarbeiten\2019 Henry Andrew\car_pass-by_corner' );
 
-c = va.get_homogeneous_medium_sound_speed();
-f = ita_ANSI_center_frequencies;
+    c = va.get_homogeneous_medium_sound_speed();
+    
+    L = va.create_sound_receiver( 'VA_Listener' );
+    va.set_sound_receiver_position( L, receiver_pos )
+    %H = va.create_directivity_from_file( '$(DefaultHRIR)' );
+    H = va.create_directivity_from_file( 'ITA-Kunstkopf_HRIR_AP11_Pressure_Equalized_3x3_256.v17.ir.daff' );
 
-L = va.create_sound_receiver( 'VA_Listener' );
-receiver_pos = [ 1 1.7 2 ]; % OpenGL coordinates
-va.set_sound_receiver_position( L, receiver_pos )
-%H = va.create_directivity_from_file( '$(DefaultHRIR)' );
-H = va.create_directivity_from_file( 'ITA-Kunstkopf_HRIR_AP11_Pressure_Equalized_3x3_256.v17.ir.daff' );
+    va.set_sound_receiver_directivity( L, H );
 
-va.set_sound_receiver_directivity( L, H );
+    S = va.create_sound_source( 'VA_Source' );
 
-S = va.create_sound_source( 'VA_Source' );
+    %X = va.create_signal_source_buffer_from_file( 'WelcomeToVA.wav' );
+    X = va.create_signal_source_buffer_from_file( 'LKW Leerlauf 2.wav' );
+    %X = va.create_signal_source_buffer_from_file( 'Full song - Vulfpeck - Dean Town.wav' );
+    va.set_signal_source_buffer_playback_action( X, 'play' )
+    va.set_signal_source_buffer_looping( X, true );
+    va.set_sound_source_signal_source( S, X )
 
-%X = va.create_signal_source_buffer_from_file( 'WelcomeToVA.wav' );
-X = va.create_signal_source_buffer_from_file( 'LKW Leerlauf 2.wav' );
-%X = va.create_signal_source_buffer_from_file( 'Full song - Vulfpeck - Dean Town.wav' );
-va.set_signal_source_buffer_playback_action( X, 'play' )
-va.set_signal_source_buffer_looping( X, true );
-va.set_sound_source_signal_source( S, X )
+catch
+    
+    dry_run = true;
+    c = 343;
+    S = -1;
+    L = -1;
+    
+end
 
-% House corner
-w = itaFiniteWedge( [ 1 0 0 ], [ 0 0 -1 ], [ 0 -2 0 ], 4 ); % OpenGL coordinates
-   
 %% Example for a synchronized scene update & audio processing simulation/auralization
 
 timestep = 128 / 44100; % here: depends on block size and sample rate
 manual_clock = 0;
-va.set_core_clock( 0 );
+if ~dry_run
+    va.set_core_clock( 0 );
+end
 
 spatialstep = 0.1;
 disp( [ 'Resulting sound source speed: ' num2str( spatialstep / timestep ) ' m/s' ] )
@@ -62,16 +79,17 @@ x = linspace( -1, 1, numsteps ) * 50; % motion from x = -50m to x = 50m
 
 n0_of_paths = 2;
 
-D_log = [];
-A_log = [];
-gain_log = [];
+H_log = []; % Diffracted field
+IL_log = []; % Insertion loss
 
 h = waitbar( 0, 'Hold on, running auralization' );
 direct_deleted = false; %set to true when the direct path has been deleted
 for n = 1:length( x )
     
-    source_pos = [ x( n ) 1.1 -3 ]; % OpenGL coordinates
-    va.set_sound_source_position( S, source_pos );    
+    source_pos = [ x( n ) 0 -3 ]; % OpenGL coordinates    
+    if ~dry_run
+        va.set_sound_source_position( S, source_pos );
+    end
         
     
     %% Direct sound path
@@ -102,14 +120,15 @@ for n = 1:length( x )
         prop_path_direct.audible = ~shadow_zone; % Direct field: may be occluded
     end
     
+    H_direct = exp( -1i * 2 * pi * f / c / distance ) / distance;
     
     %% Diffracted sound path
     
     apex = w.get_aperture_point( source_pos, receiver_pos );
     detour = norm( source_pos - apex ) + norm( apex - receiver_pos );
-    [ ~, D, A ] = ita_diffraction_utd( w, source_pos, receiver_pos, f, c );    
+    [ H, D, A ] = ita_diffraction_utd( w, source_pos, receiver_pos, f, c );    
     rho = norm( apex - source_pos );
-    
+        
     prop_path_diffracted = struct();    
     prop_path_diffracted.source = S;
     prop_path_diffracted.receiver = L;
@@ -132,24 +151,37 @@ for n = 1:length( x )
         paths_update.diffracted_path = prop_path_diffracted;
     end
     
-    va.set_rendering_module_parameters( renderer_id, paths_update );
-    
-    % Increment core clock
-    manual_clock = manual_clock + timestep;
-    va.call_module( 'manualclock', struct( 'time', manual_clock ) );
-    
-    % Process audio chain by incrementing one block
-    va.call_module( 'virtualaudiodevice', struct( 'trigger', true ) );
+    if ~dry_run
+        
+        rends = va.get_rendering_modules();
+        for rend = 1:numel( rends )
+            if strcmpi( rend.class, 'BinauralOutdoorNoise' )
+                va.set_rendering_module_parameters( rend.id, paths_update );
+            end
+        end
+
+        % Increment core clock
+        manual_clock = manual_clock + timestep;
+        va.call_module( 'manualclock', struct( 'time', manual_clock ) );
+
+        % Process audio chain by incrementing one block
+        va.call_module( 'virtualaudiodevice', struct( 'trigger', true ) );
+        
+    end
     
     waitbar( n / numsteps )
     
-    D_log = [ D_log; D ];
-    A_log = [ A_log; A ];
-    gain_log = [ gain_log; prop_path_diffracted.gain ];
+    H_log = [ H_log; H ];
+    if shadow_zone
+        IL_log = [ IL_log; H ./ H_direct ];
+    else
+        IL_log = [ IL_log; ( H + H_direct ) ./ H_direct ];
+    end
      
 end
 close( h )
 
-va.disconnect
-
-disp( 'Stop VA to export simulation results from rendering module(s)' )
+if ~dry_run    
+    va.disconnect
+    disp( 'Stop VA to export simulation results from rendering module(s)' )    
+end