diff --git a/talk/examples/android/res/values/strings.xml b/talk/examples/android/res/values/strings.xml
index 4f2f3777e..428b0eb8b 100644
--- a/talk/examples/android/res/values/strings.xml
+++ b/talk/examples/android/res/values/strings.xml
@@ -87,11 +87,6 @@
     <string name="pref_audiocodec_dlg">Select default audio codec.</string>
     <string name="pref_audiocodec_default">OPUS</string>
 
-    <string name="pref_noaudioprocessing_key">audioprocessing_preference</string>
-    <string name="pref_noaudioprocessing_title">Disable audio processing.</string>
-    <string name="pref_noaudioprocessing_dlg">Disable audio processing pipeline.</string>
-    <string name="pref_noaudioprocessing_default">false</string>
-
     <string name="pref_miscsettings_key">misc_settings_key</string>
     <string name="pref_miscsettings_title">Miscellaneous settings.</string>
 
diff --git a/talk/examples/android/res/xml/preferences.xml b/talk/examples/android/res/xml/preferences.xml
index 73d8d5e25..ad0affb47 100644
--- a/talk/examples/android/res/xml/preferences.xml
+++ b/talk/examples/android/res/xml/preferences.xml
@@ -82,12 +82,6 @@
             android:dialogTitle="@string/pref_audiocodec_dlg"
             android:entries="@array/audioCodecs"
             android:entryValues="@array/audioCodecs" />
-
-        <CheckBoxPreference
-            android:key="@string/pref_noaudioprocessing_key"
-            android:title="@string/pref_noaudioprocessing_title"
-            android:dialogTitle="@string/pref_noaudioprocessing_dlg"
-            android:defaultValue="@string/pref_noaudioprocessing_default" />
     </PreferenceCategory>
 
     <PreferenceCategory
diff --git a/talk/examples/android/src/org/appspot/apprtc/CallActivity.java b/talk/examples/android/src/org/appspot/apprtc/CallActivity.java
index 735f28e6c..4f3f52bfe 100644
--- a/talk/examples/android/src/org/appspot/apprtc/CallActivity.java
+++ b/talk/examples/android/src/org/appspot/apprtc/CallActivity.java
@@ -85,8 +85,6 @@ public class CallActivity extends Activity
       "org.appspot.apprtc.AUDIO_BITRATE";
   public static final String EXTRA_AUDIOCODEC =
       "org.appspot.apprtc.AUDIOCODEC";
-  public static final String EXTRA_NOAUDIOPROCESSING_ENABLED =
-      "org.appspot.apprtc.NOAUDIOPROCESSING";
   public static final String EXTRA_CPUOVERUSE_DETECTION =
       "org.appspot.apprtc.CPUOVERUSE_DETECTION";
   public static final String EXTRA_DISPLAY_HUD =
@@ -237,7 +235,6 @@ public class CallActivity extends Activity
         intent.getBooleanExtra(EXTRA_HWCODEC_ENABLED, true),
         intent.getIntExtra(EXTRA_AUDIO_BITRATE, 0),
         intent.getStringExtra(EXTRA_AUDIOCODEC),
-        intent.getBooleanExtra(EXTRA_NOAUDIOPROCESSING_ENABLED, false),
         intent.getBooleanExtra(EXTRA_CPUOVERUSE_DETECTION, true));
     commandLineRun = intent.getBooleanExtra(EXTRA_CMDLINE, false);
     runTimeMs = intent.getIntExtra(EXTRA_RUNTIME, 0);
diff --git a/talk/examples/android/src/org/appspot/apprtc/ConnectActivity.java b/talk/examples/android/src/org/appspot/apprtc/ConnectActivity.java
index 69aeda5cb..5a6f99ca9 100644
--- a/talk/examples/android/src/org/appspot/apprtc/ConnectActivity.java
+++ b/talk/examples/android/src/org/appspot/apprtc/ConnectActivity.java
@@ -81,7 +81,6 @@ public class ConnectActivity extends Activity {
   private String keyprefAudioBitrateValue;
   private String keyprefAudioCodec;
   private String keyprefHwCodecAcceleration;
-  private String keyprefNoAudioProcessingPipeline;
   private String keyprefCpuUsageDetection;
   private String keyprefDisplayHud;
   private String keyprefRoomServerUrl;
@@ -107,7 +106,6 @@ public class ConnectActivity extends Activity {
     keyprefAudioBitrateType = getString(R.string.pref_startaudiobitrate_key);
     keyprefAudioBitrateValue = getString(R.string.pref_startaudiobitratevalue_key);
     keyprefAudioCodec = getString(R.string.pref_audiocodec_key);
-    keyprefNoAudioProcessingPipeline = getString(R.string.pref_noaudioprocessing_key);
     keyprefCpuUsageDetection = getString(R.string.pref_cpu_usage_detection_key);
     keyprefDisplayHud = getString(R.string.pref_displayhud_key);
     keyprefRoomServerUrl = getString(R.string.pref_room_server_url_key);
@@ -268,11 +266,6 @@ public class ConnectActivity extends Activity {
     boolean hwCodec = sharedPref.getBoolean(keyprefHwCodecAcceleration,
         Boolean.valueOf(getString(R.string.pref_hwcodec_default)));
 
-    // Check Disable Audio Processing flag.
-    boolean noAudioProcessing = sharedPref.getBoolean(
-        keyprefNoAudioProcessingPipeline,
-        Boolean.valueOf(getString(R.string.pref_noaudioprocessing_default)));
-
     // Get video resolution from settings.
     int videoWidth = 0;
     int videoHeight = 0;
@@ -349,8 +342,6 @@ public class ConnectActivity extends Activity {
       intent.putExtra(CallActivity.EXTRA_VIDEO_BITRATE, videoStartBitrate);
       intent.putExtra(CallActivity.EXTRA_VIDEOCODEC, videoCodec);
       intent.putExtra(CallActivity.EXTRA_HWCODEC_ENABLED, hwCodec);
-      intent.putExtra(CallActivity.EXTRA_NOAUDIOPROCESSING_ENABLED,
-          noAudioProcessing);
       intent.putExtra(CallActivity.EXTRA_AUDIO_BITRATE, audioStartBitrate);
       intent.putExtra(CallActivity.EXTRA_AUDIOCODEC, audioCodec);
       intent.putExtra(CallActivity.EXTRA_CPUOVERUSE_DETECTION,
diff --git a/talk/examples/android/src/org/appspot/apprtc/PeerConnectionClient.java b/talk/examples/android/src/org/appspot/apprtc/PeerConnectionClient.java
index 6e69310e5..41faab179 100644
--- a/talk/examples/android/src/org/appspot/apprtc/PeerConnectionClient.java
+++ b/talk/examples/android/src/org/appspot/apprtc/PeerConnectionClient.java
@@ -79,10 +79,6 @@ public class PeerConnectionClient {
   private static final String VIDEO_CODEC_PARAM_START_BITRATE =
       "x-google-start-bitrate";
   private static final String AUDIO_CODEC_PARAM_BITRATE = "maxaveragebitrate";
-  private static final String AUDIO_ECHO_CANCELLATION_CONSTRAINT = "googEchoCancellation";
-  private static final String AUDIO_AUTO_GAIN_CONTROL_CONSTRAINT= "googAutoGainControl";
-  private static final String AUDIO_HIGH_PASS_FILTER_CONSTRAINT  = "googHighpassFilter";
-  private static final String AUDIO_NOISE_SUPPRESSION_CONSTRAINT = "googNoiseSuppression";
   private static final String MAX_VIDEO_WIDTH_CONSTRAINT = "maxWidth";
   private static final String MIN_VIDEO_WIDTH_CONSTRAINT = "minWidth";
   private static final String MAX_VIDEO_HEIGHT_CONSTRAINT = "maxHeight";
@@ -148,7 +144,6 @@ public class PeerConnectionClient {
     public final boolean videoCodecHwAcceleration;
     public final int audioStartBitrate;
     public final String audioCodec;
-    public final boolean noAudioProcessing;
     public final boolean cpuOveruseDetection;
 
     public PeerConnectionParameters(
@@ -156,7 +151,7 @@ public class PeerConnectionClient {
         int videoWidth, int videoHeight, int videoFps, int videoStartBitrate,
         String videoCodec, boolean videoCodecHwAcceleration,
         int audioStartBitrate, String audioCodec,
-        boolean noAudioProcessing, boolean cpuOveruseDetection) {
+        boolean cpuOveruseDetection) {
       this.videoCallEnabled = videoCallEnabled;
       this.loopback = loopback;
       this.videoWidth = videoWidth;
@@ -167,7 +162,6 @@ public class PeerConnectionClient {
       this.videoCodecHwAcceleration = videoCodecHwAcceleration;
       this.audioStartBitrate = audioStartBitrate;
       this.audioCodec = audioCodec;
-      this.noAudioProcessing = noAudioProcessing;
       this.cpuOveruseDetection = cpuOveruseDetection;
     }
   }
@@ -393,18 +387,7 @@ public class PeerConnectionClient {
 
     // Create audio constraints.
     audioConstraints = new MediaConstraints();
-    // added for audio performance measurements
-    if (peerConnectionParameters.noAudioProcessing) {
-      Log.d(TAG, "Disabling audio processing");
-      audioConstraints.mandatory.add(new MediaConstraints.KeyValuePair(
-            AUDIO_ECHO_CANCELLATION_CONSTRAINT, "false"));
-      audioConstraints.mandatory.add(new MediaConstraints.KeyValuePair(
-            AUDIO_AUTO_GAIN_CONTROL_CONSTRAINT, "false"));
-      audioConstraints.mandatory.add(new MediaConstraints.KeyValuePair(
-            AUDIO_HIGH_PASS_FILTER_CONSTRAINT, "false"));
-      audioConstraints.mandatory.add(new MediaConstraints.KeyValuePair(
-           AUDIO_NOISE_SUPPRESSION_CONSTRAINT , "false"));
-    }
+
     // Create SDP constraints.
     sdpMediaConstraints = new MediaConstraints();
     sdpMediaConstraints.mandatory.add(new MediaConstraints.KeyValuePair(
diff --git a/talk/examples/android/src/org/appspot/apprtc/SettingsActivity.java b/talk/examples/android/src/org/appspot/apprtc/SettingsActivity.java
index 7746ef50d..1a017001e 100644
--- a/talk/examples/android/src/org/appspot/apprtc/SettingsActivity.java
+++ b/talk/examples/android/src/org/appspot/apprtc/SettingsActivity.java
@@ -50,7 +50,6 @@ public class SettingsActivity extends Activity
   private String keyprefStartAudioBitrateType;
   private String keyprefStartAudioBitrateValue;
   private String keyPrefAudioCodec;
-  private String keyprefNoAudioProcessing;
 
   private String keyprefCpuUsageDetection;
   private String keyPrefRoomServerUrl;
@@ -70,7 +69,6 @@ public class SettingsActivity extends Activity
     keyprefStartAudioBitrateType = getString(R.string.pref_startaudiobitrate_key);
     keyprefStartAudioBitrateValue = getString(R.string.pref_startaudiobitratevalue_key);
     keyPrefAudioCodec = getString(R.string.pref_audiocodec_key);
-    keyprefNoAudioProcessing = getString(R.string.pref_noaudioprocessing_key);
 
     keyprefCpuUsageDetection = getString(R.string.pref_cpu_usage_detection_key);
     keyPrefRoomServerUrl = getString(R.string.pref_room_server_url_key);
@@ -103,7 +101,6 @@ public class SettingsActivity extends Activity
     updateSummaryBitrate(sharedPreferences, keyprefStartAudioBitrateValue);
     setAudioBitrateEnable(sharedPreferences);
     updateSummary(sharedPreferences, keyPrefAudioCodec);
-    updateSummaryB(sharedPreferences, keyprefNoAudioProcessing);
 
     updateSummaryB(sharedPreferences, keyprefCpuUsageDetection);
     updateSummary(sharedPreferences, keyPrefRoomServerUrl);
@@ -134,7 +131,6 @@ public class SettingsActivity extends Activity
       updateSummaryBitrate(sharedPreferences, key);
     } else if (key.equals(keyprefVideoCall)
         || key.equals(keyprefHwCodec)
-        || key.equals(keyprefNoAudioProcessing)
         || key.equals(keyprefCpuUsageDetection)
         || key.equals(keyPrefDisplayHud)) {
       updateSummaryB(sharedPreferences, key);