Miscellaneous changes split from https://codereview.webrtc.org/1230503003 .

webrtc/modules/audio_processing/intelligibility/intelligibility_utils.cc

 /*
  *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 130 matching lines @@
     } else {
       float old_sum = conj_sum_[i];
       complex<float> old_mean = running_mean_[i];
       running_mean_[i] =
           old_mean + (sample - old_mean) / static_cast<float>(count_);
       conj_sum_[i] =
           (old_sum + std::conj(sample - old_mean) * (sample - running_mean_[i]))
               .real();
       variance_[i] =
           conj_sum_[i] / (count_ - 1);  // + fudge[fudge_index].real();
-      if (skip_fudge && false) {
-        // variance_[i] -= fudge[fudge_index].real();
-      }
+      // if (skip_fudge) {
+      //   variance_[i] -= fudge[fudge_index].real();
+      // }
     }
     array_mean_ += (variance_[i] - array_mean_) / (i + 1);
   }
 }
 
 // Compute the variance from the beginning, with exponential decaying of the
 // series data.
 void VarianceArray::DecayStep(const complex<float>* data, bool /*dummy*/) {
   array_mean_ = 0.0f;
   ++count_;
@@ skipping 127 matching lines @@
       factor = 1.0f;
     }
     out_block[i] = factor * in_block[i];
     current_[i] = UpdateFactor(target_[i], current_[i], change_limit_);
   }
 }
 
 }  // namespace intelligibility
 
 }  // namespace webrtc