hot fix -- ispras/lingvodoc-react#1102

Author: vmonakhov

lingvodoc/views/v2/phonology.py

@@ -1740,17 +1740,16 @@ def get_pitch(self, begin=0, end=None):
                 'ac': numpy.zeros(nsampFFT, dtype=float),
                 'imax': numpy.zeros(maxnCandidates, dtype=int),
                 'localMean': numpy.zeros(ny, dtype=float),
-                'r': numpy.zeros(brent_ixmax + 1)
+                'r': numpy.zeros(brent_ixmax * 2 + 1)
             }
 
-            # single-thread
-            sound_into_pitch(arg)
-
             args.append(arg)
-
             firstFrame = lastFrame
             lastFrame += numberOfFramesPerThread
 
+            # single-thread
+            sound_into_pitch(arg)
+
         '''
         # multi-thread
         pool = multiprocessing.Pool(numberOfThreads)