diff --git a/schainpy/model/cfunctions.pyx b/schainpy/model/cfunctions.pyx
index 87d9b88..bd9062f 100644
--- a/schainpy/model/cfunctions.pyx
+++ b/schainpy/model/cfunctions.pyx
@@ -1,7 +1,7 @@
 import numpy
 cimport numpy
  
-def decoder(numpy.ndarray[numpy.float32_t, ndim=2] fft_code, numpy.ndarray[numpy.complex_t, ndim=2] data):
+def decoder(numpy.ndarray[numpy.complex_t, ndim=2] fft_code, numpy.ndarray[numpy.complex_t, ndim=2] data):
 
     fft_data = numpy.fft.fft(data, axis=1)
     conv = fft_data*fft_code
diff --git a/schainpy/model/jroprocessing.py b/schainpy/model/jroprocessing.py
index 77614ae..a8485b6 100644
--- a/schainpy/model/jroprocessing.py
+++ b/schainpy/model/jroprocessing.py
@@ -629,7 +629,7 @@ class Decoder(Operation):
         return ndatadec, datadec
         
     def convolutionInFreqOpt(self, data):
-        
+        ini = time.time()
         fft_code = self.fft_code[self.__profIndex].reshape(1,-1)
         
         data = cfunctions.decoder(fft_code, data)
@@ -642,7 +642,7 @@ class Decoder(Operation):
             return ndatadec, datadec
                
         self.__profIndex += 1
-        
+        print time.time() - ini
         return ndatadec, datadec
     
     def convolutionInTime(self, data):