removed persistent in ita_smooth

kernel/DSP/Edit/ita_smooth.m

@@ -60,26 +60,22 @@ function varargout = ita_smooth(audioObject, varargin)
 
 
 thisFuncStr  = [upper(mfilename) ':'];
-persistent smooth_helper
-if isempty(smooth_helper)
-    
-    % Check if 
-    if exist('smooth.m','file')
-        smooth_helper = @smooth;
-        smooth_opt = [];
-        ita_verbose_info('Using MATLAB smooth',1);
-    else
-        smooth_helper = @ita_smooth_helper;
-        smooth_opt = cell(1);
-        ita_verbose_info('Using lowlevel Toolbox Smooth',1);
-        
-    end
+
+% Check if 
+if exist('smooth.m','file')
+    smooth_helper = @smooth;
+    smooth_opt = [];
+    ita_verbose_info('Using MATLAB smooth',1);
+else
+    smooth_helper = @ita_smooth_helper;
+    smooth_opt = cell(1);
+    ita_verbose_info('Using lowlevel Toolbox Smooth',1);
 end
 
 %% READ INPUT ARGUMENTS
 narginchk(1,6);
 
-if nargin >= 4 && strcmp(func2str(smooth_helper),'smooth');
+if nargin >= 4 && strcmp(func2str(smooth_helper),'smooth')
     smooth_opt = varargin(4:end);
     varargin(4:end) = [];
 else
@@ -366,7 +362,6 @@ for ind = 1:numel(audioObject)
             absOut = zeros(nBins,channels);
             phaseOut = zeros(nBins,channels);
             delayOut = zeros(nBins,channels);
-            out = zeros(nBins,channels);
             
             switch lower(dataType)
                 case 'real'