very basic version of writing itaAudio objects to sofa files

kernel/DataAudio_IO/ita_write/ita_write_sofa.m

@@ -82,6 +82,16 @@ switch(sArgs.dataType)
 %         sofaObj = SOFAgetConventions('SingleRoomDRIR');   
 %         sofaObj = createSofaDRIR(sofaObj,data,userDataFields);
 %         sofaObj = ita_sofa_setCoordinates(sofaObj,data,'channelCoordinateType','ReceiverPosition');
+    case 'GeneralFIR'
+        sofaObj = SOFAgetConventions('GeneralFIR');   
+        sofaObj = createSofaFIR(sofaObj,data,userDataFields); % userdatafields are generated from sofaObj.userdata
+        sofaObj = ita_sofa_setCoordinates(sofaObj, data,'channelCoordinateType','ReceiverPosition');
+        if ~isempty(sArgs.userdata) % user data are replaced by the struct
+            fNames = fieldnames(sArgs.userdata);
+            for idxFN = 1:numel(fNames)
+                sofaObj.(fNames{idxFN}) = sArgs.userdata.(fNames{idxFN});
+            end
+        end
     otherwise
         error('ITA_WRITE_SOFA: Only HRTF Type is defined');
 end
@@ -98,6 +108,35 @@ result = 1;
 end
 
 
+function sofaObj = createSofaFIR(sofaObj, data, userDataFields)
+
+if ~isa(data, 'itaAudio')
+    ita_verbose_info('I only export itaAudio objects', 0);
+    return;
+end
+
+sofaObj.Data.IR = zeros(1, data.nChannels, data.nSamples);
+
+sofaObj.Data.IR(1,: ,:) = data.timeData.';
+sofaObj.Data.Delay = zeros(1, data.nChannels);
+sofaObj.Data.SamplingRate = data.samplingRate;
+
+userData = data.userData;
+
+for index = 1:length(userDataFields)
+    if isfield(userData,userDataFields{index})
+        sofaObj.(userDataFields{index}) =  userData.(userDataFields{index});
+    end
+end
+
+if ~isempty(data.objectCoordinates.cart)
+    sofaObj.ReceiverPosition = data.objectCoordinates.cart;
+end
+
+end
+
+
+
 function sofaObj = createSofaHRTF(sofaObj,data,userDataFields)
     
     if ~isa(data,'itaHRTF')