added distance loss to hoa decoding, added headphone test fixture to ita device list ITA

applications/Hardware/ITAdevices/ita_device_list_ITA.m

@@ -452,6 +452,11 @@ device(end+1,:) = { 'ITA-KK KE4 Child right','0.0098573 V/Pa','ke4',0};
 device(end+1,:) = { 'Neumann-KK left','1 V/Pa','schoeps',1};
 device(end+1,:) = { 'Neumann-KK right','1 V/Pa','schoeps',1};
 
+% values are taken from calibration sheets by DKD (Deutscher
+% Kalibrierdienst)
+device(end+1,:) = { 'GRAS Headphone Testfixture Left','0.01211 V/Pa','RA0401',1};
+device(end+1,:) = { 'GRAS Headphone Testfixture Right','0.0124 V/Pa','RA0401',1};
+
 device(end+1,:) = { 'HEAD HMS III with ear simulator - IEC 711','0.01165 V/Pa','none',0};
 
 device(end+1,:) = { 'Hoertnix BTE right front_hwch01','0.0159 V/Pa','none',1};

applications/SpatialAudio/ita_hoa_decode.m

-function [ OutputSignals ] = ita_3da_decode( Bformat, LoudspeakerPos, varargin )
+function [ OutputSignals ] = ita_hoa_decode( Bformat, LoudspeakerPos, varargin )
 %ITA_DECODEAMBISONICS Decodes a BFormat Signal in ANC with SN3D
 %normalization
 %   Detailed explanation goes here
@@ -7,7 +7,7 @@ function [ OutputSignals ] = ita_3da_decode( Bformat, LoudspeakerPos, varargin )
 
 opts.decoding='remax'; % Decoding strategy (remax,inphase,plane)
 %  opts.decoding='none';
- 
+opts.distanceloss=true;
 opts = ita_parse_arguments(opts,varargin);
 
 % Initializing further parameters
@@ -81,8 +81,12 @@ if isa(Bformat,'itaAudio')
         for l=1:nmax
             temp(l)=Bformat.ch(l)*Yinv(l,k);
         end
+        if opts.distanceloss
+            OutputSignals(k)=sum(temp)*LoudspeakerPos.r(k);
+        else
             OutputSignals(k)=sum(temp);
         end
+    end
     OutputSignals=ita_merge(OutputSignals(:));
     OutputSignals.channelCoordinates=LoudspeakerPos;
 else