diff --git a/assignment-client/src/audio/AudioMixer.cpp b/assignment-client/src/audio/AudioMixer.cpp
index e1d118a11d..1fe3ddbbe9 100644
--- a/assignment-client/src/audio/AudioMixer.cpp
+++ b/assignment-client/src/audio/AudioMixer.cpp
@@ -270,10 +270,10 @@ void AudioMixer::addStreamToMixForListeningNodeWithStream(PositionalAudioStream*
         }
     }
         
-    if ( _enableFilter && shouldAttenuate ) {
+    if (_enableFilter && shouldAttenuate) {
         
         glm::vec3 relativePosition = streamToAdd->getPosition() - listeningNodeStream->getPosition();
-        if ( relativePosition.z < 0 ) {  // if the source is behind us
+        if (relativePosition.z < 0) {  // if the source is behind us
             
             AudioFilterPEQ1s& penumbraFilter = streamToAdd->getFilter();
 
@@ -297,13 +297,13 @@ void AudioMixer::addStreamToMixForListeningNodeWithStream(PositionalAudioStream*
             penumbraFilterFrequency = 2000.0f;
             penumbraFilterSlope = 1.0f; // gentle slope
             
-//          printf("gain=%f,angle=%f\n",penumbraFilterGain,headPenumbraAngle);
-        
+            qDebug() << "penumbra gain=" << penumbraFilterGain << ", penumbraAngle=" << normalizedHeadPenumbraAngle;
+
             // set the gain on both filter channels
-            penumbraFilter.setParameters(0,0,SAMPLE_RATE,penumbraFilterFrequency,penumbraFilterGain,penumbraFilterSlope);
-            penumbraFilter.setParameters(0,1,SAMPLE_RATE,penumbraFilterFrequency,penumbraFilterGain,penumbraFilterSlope);
+            penumbraFilter.setParameters(0, 0, SAMPLE_RATE, penumbraFilterFrequency, penumbraFilterGain, penumbraFilterSlope);
+            penumbraFilter.setParameters(0, 1, SAMPLE_RATE, penumbraFilterFrequency, penumbraFilterGain, penumbraFilterSlope);
             
-            penumbraFilter.render( _clientSamples, _clientSamples, NETWORK_BUFFER_LENGTH_SAMPLES_STEREO / 2);
+            penumbraFilter.render(_clientSamples, _clientSamples, NETWORK_BUFFER_LENGTH_SAMPLES_STEREO / 2);
         }
     }
 }
diff --git a/libraries/audio/src/AudioFilter.h b/libraries/audio/src/AudioFilter.h
index 3907e3e378..2be88322af 100644
--- a/libraries/audio/src/AudioFilter.h
+++ b/libraries/audio/src/AudioFilter.h
@@ -12,7 +12,7 @@
 #ifndef hifi_AudioFilter_h
 #define hifi_AudioFilter_h
 
-////////////////////////////////////////////////////////////////////////////////////////////
+//
 // Implements a standard biquad filter in "Direct Form 1"
 // Reference http://www.musicdsp.org/files/Audio-EQ-Cookbook.txt
 //
@@ -91,7 +91,7 @@ public:
 };
 
 
-////////////////////////////////////////////////////////////////////////////////////////////
+//
 // Implements common base class interface for all Audio Filter Objects
 //
 template< class T >
@@ -152,7 +152,7 @@ public:
     }
 };
 
-////////////////////////////////////////////////////////////////////////////////////////////
+//
 // Implements a low-shelf filter using a biquad 
 //
 class AudioFilterLSF : 
@@ -168,7 +168,7 @@ public:
     }
 };
 
-////////////////////////////////////////////////////////////////////////////////////////////
+//
 // Implements a hi-shelf filter using a biquad 
 //
 class AudioFilterHSF : 
@@ -184,7 +184,7 @@ public:
     }
 };
 
-////////////////////////////////////////////////////////////////////////////////////////////
+//
 // Implements a single-band parametric EQ using a biquad "peaking EQ" configuration
 //
 class AudioFilterPEQ : 
diff --git a/libraries/audio/src/AudioFilterBank.cpp b/libraries/audio/src/AudioFilterBank.cpp
index e46195b5b9..a2cf008fc9 100644
--- a/libraries/audio/src/AudioFilterBank.cpp
+++ b/libraries/audio/src/AudioFilterBank.cpp
@@ -10,7 +10,6 @@
 //
 
 #include <math.h>
-#include <vector.h>
 #include <SharedUtil.h>
 #include "AudioRingBuffer.h"
 #include "AudioFilter.h"
diff --git a/libraries/audio/src/AudioFilterBank.h b/libraries/audio/src/AudioFilterBank.h
index c995a87b63..6721d077f7 100644
--- a/libraries/audio/src/AudioFilterBank.h
+++ b/libraries/audio/src/AudioFilterBank.h
@@ -12,7 +12,7 @@
 #ifndef hifi_AudioFilterBank_h
 #define hifi_AudioFilterBank_h
 
-////////////////////////////////////////////////////////////////////////////////////////////
+//
 // Helper/convenience class that implements a bank of Filter objects
 //
 template< typename T, const int N, const int C >
@@ -150,7 +150,7 @@ public:
 
 };
 
-////////////////////////////////////////////////////////////////////////////////////////////
+//
 // Specializations of AudioFilterBank
 //
 typedef AudioFilterBank< AudioFilterLSF, 1, 1> AudioFilterLSF1m; // mono bank with one band of LSF