diff --git a/examples/BUILD.gn b/examples/BUILD.gn
index 31bd4dec49..f8b5489484 100644
--- a/examples/BUILD.gn
+++ b/examples/BUILD.gn
@@ -135,7 +135,6 @@ if (is_android) {
 
     deps = [
       ":AppRTCMobile_resources",
-      "../modules/audio_device:audio_device_java",
       "../rtc_base:base_java",
       "../sdk/android:audio_api_java",
       "../sdk/android:base_java",
@@ -911,7 +910,6 @@ if (is_android) {
     requires_android = true
     deps = [
       ":webrtc_unity_java",
-      "../modules/audio_device:audio_device_java",
       "../rtc_base:base_java",
       "../sdk/android:libjingle_peerconnection_java",
       "../sdk/android:libjingle_peerconnection_metrics_default_java",
diff --git a/examples/androidapp/res/values/strings.xml b/examples/androidapp/res/values/strings.xml
index 9006dc1cc7..cd233569fb 100644
--- a/examples/androidapp/res/values/strings.xml
+++ b/examples/androidapp/res/values/strings.xml
@@ -218,8 +218,4 @@
     <string name="pref_enable_rtceventlog_key">enable_rtceventlog_key</string>
     <string name="pref_enable_rtceventlog_title">Enable RtcEventLog.</string>
     <string name="pref_enable_rtceventlog_default">false</string>
-
-    <string name="pref_use_legacy_audio_device_key">use_legacy_audio_device_key</string>
-    <string name="pref_use_legacy_audio_device_title">Use legacy audio device.</string>
-    <string name="pref_use_legacy_audio_device_default">false</string>
 </resources>
diff --git a/examples/androidapp/res/xml/preferences.xml b/examples/androidapp/res/xml/preferences.xml
index ffe2daa8f5..14e74d5c0b 100644
--- a/examples/androidapp/res/xml/preferences.xml
+++ b/examples/androidapp/res/xml/preferences.xml
@@ -165,11 +165,6 @@
             android:dialogTitle="@string/pref_speakerphone_dlg"
             android:entries="@array/speakerphone"
             android:entryValues="@array/speakerphoneValues" />
-
-        <CheckBoxPreference
-            android:key="@string/pref_use_legacy_audio_device_key"
-            android:title="@string/pref_use_legacy_audio_device_title"
-            android:defaultValue="@string/pref_use_legacy_audio_device_default" />
     </PreferenceCategory>
 
     <PreferenceCategory
diff --git a/examples/androidapp/src/org/appspot/apprtc/CallActivity.java b/examples/androidapp/src/org/appspot/apprtc/CallActivity.java
index 4cf1a601d7..d55a9704d3 100644
--- a/examples/androidapp/src/org/appspot/apprtc/CallActivity.java
+++ b/examples/androidapp/src/org/appspot/apprtc/CallActivity.java
@@ -120,8 +120,6 @@ public class CallActivity extends Activity implements AppRTCClient.SignalingEven
   public static final String EXTRA_NEGOTIATED = "org.appspot.apprtc.NEGOTIATED";
   public static final String EXTRA_ID = "org.appspot.apprtc.ID";
   public static final String EXTRA_ENABLE_RTCEVENTLOG = "org.appspot.apprtc.ENABLE_RTCEVENTLOG";
-  public static final String EXTRA_USE_LEGACY_AUDIO_DEVICE =
-      "org.appspot.apprtc.USE_LEGACY_AUDIO_DEVICE";
 
   private static final int CAPTURE_PERMISSION_REQUEST_CODE = 1;
 
@@ -326,8 +324,7 @@ public class CallActivity extends Activity implements AppRTCClient.SignalingEven
             intent.getBooleanExtra(EXTRA_DISABLE_BUILT_IN_AGC, false),
             intent.getBooleanExtra(EXTRA_DISABLE_BUILT_IN_NS, false),
             intent.getBooleanExtra(EXTRA_DISABLE_WEBRTC_AGC_AND_HPF, false),
-            intent.getBooleanExtra(EXTRA_ENABLE_RTCEVENTLOG, false),
-            intent.getBooleanExtra(EXTRA_USE_LEGACY_AUDIO_DEVICE, false), dataChannelParameters);
+            intent.getBooleanExtra(EXTRA_ENABLE_RTCEVENTLOG, false), dataChannelParameters);
     commandLineRun = intent.getBooleanExtra(EXTRA_CMDLINE, false);
     int runTimeMs = intent.getIntExtra(EXTRA_RUNTIME, 0);
 
diff --git a/examples/androidapp/src/org/appspot/apprtc/ConnectActivity.java b/examples/androidapp/src/org/appspot/apprtc/ConnectActivity.java
index 904cce8506..87ceea67da 100644
--- a/examples/androidapp/src/org/appspot/apprtc/ConnectActivity.java
+++ b/examples/androidapp/src/org/appspot/apprtc/ConnectActivity.java
@@ -434,10 +434,6 @@ public class ConnectActivity extends Activity {
         CallActivity.EXTRA_ENABLE_RTCEVENTLOG, R.string.pref_enable_rtceventlog_default,
         useValuesFromIntent);
 
-    boolean useLegacyAudioDevice = sharedPrefGetBoolean(R.string.pref_use_legacy_audio_device_key,
-        CallActivity.EXTRA_USE_LEGACY_AUDIO_DEVICE, R.string.pref_use_legacy_audio_device_default,
-        useValuesFromIntent);
-
     // Get datachannel options
     boolean dataChannelEnabled = sharedPrefGetBoolean(R.string.pref_enable_datachannel_key,
         CallActivity.EXTRA_DATA_CHANNEL_ENABLED, R.string.pref_enable_datachannel_default,
@@ -492,8 +488,6 @@ public class ConnectActivity extends Activity {
       intent.putExtra(CallActivity.EXTRA_ENABLE_RTCEVENTLOG, rtcEventLogEnabled);
       intent.putExtra(CallActivity.EXTRA_CMDLINE, commandLineRun);
       intent.putExtra(CallActivity.EXTRA_RUNTIME, runTimeMs);
-      intent.putExtra(CallActivity.EXTRA_USE_LEGACY_AUDIO_DEVICE, useLegacyAudioDevice);
-
       intent.putExtra(CallActivity.EXTRA_DATA_CHANNEL_ENABLED, dataChannelEnabled);
 
       if (dataChannelEnabled) {
diff --git a/examples/androidapp/src/org/appspot/apprtc/PeerConnectionClient.java b/examples/androidapp/src/org/appspot/apprtc/PeerConnectionClient.java
index 540797a67a..b4e065b806 100644
--- a/examples/androidapp/src/org/appspot/apprtc/PeerConnectionClient.java
+++ b/examples/androidapp/src/org/appspot/apprtc/PeerConnectionClient.java
@@ -75,14 +75,6 @@ import org.webrtc.audio.AudioDeviceModule;
 import org.webrtc.audio.JavaAudioDeviceModule;
 import org.webrtc.audio.JavaAudioDeviceModule.AudioRecordErrorCallback;
 import org.webrtc.audio.JavaAudioDeviceModule.AudioTrackErrorCallback;
-import org.webrtc.audio.LegacyAudioDeviceModule;
-import org.webrtc.voiceengine.WebRtcAudioManager;
-import org.webrtc.voiceengine.WebRtcAudioRecord;
-import org.webrtc.voiceengine.WebRtcAudioRecord.AudioRecordStartErrorCode;
-import org.webrtc.voiceengine.WebRtcAudioRecord.WebRtcAudioRecordErrorCallback;
-import org.webrtc.voiceengine.WebRtcAudioTrack;
-import org.webrtc.voiceengine.WebRtcAudioTrack.AudioTrackStartErrorCode;
-import org.webrtc.voiceengine.WebRtcAudioUtils;
 
 /**
  * Peer connection client implementation.
@@ -232,7 +224,6 @@ public class PeerConnectionClient {
     public final boolean disableBuiltInNS;
     public final boolean disableWebRtcAGCAndHPF;
     public final boolean enableRtcEventLog;
-    public final boolean useLegacyAudioDevice;
     private final DataChannelParameters dataChannelParameters;
 
     public PeerConnectionParameters(boolean videoCallEnabled, boolean loopback, boolean tracing,
@@ -241,7 +232,7 @@ public class PeerConnectionClient {
         String audioCodec, boolean noAudioProcessing, boolean aecDump, boolean saveInputAudioToFile,
         boolean useOpenSLES, boolean disableBuiltInAEC, boolean disableBuiltInAGC,
         boolean disableBuiltInNS, boolean disableWebRtcAGCAndHPF, boolean enableRtcEventLog,
-        boolean useLegacyAudioDevice, DataChannelParameters dataChannelParameters) {
+        DataChannelParameters dataChannelParameters) {
       this.videoCallEnabled = videoCallEnabled;
       this.loopback = loopback;
       this.tracing = tracing;
@@ -263,7 +254,6 @@ public class PeerConnectionClient {
       this.disableBuiltInNS = disableBuiltInNS;
       this.disableWebRtcAGCAndHPF = disableWebRtcAGCAndHPF;
       this.enableRtcEventLog = enableRtcEventLog;
-      this.useLegacyAudioDevice = useLegacyAudioDevice;
       this.dataChannelParameters = dataChannelParameters;
     }
   }
@@ -430,9 +420,7 @@ public class PeerConnectionClient {
       }
     }
 
-    final AudioDeviceModule adm = peerConnectionParameters.useLegacyAudioDevice
-        ? createLegacyAudioDevice()
-        : createJavaAudioDevice();
+    final AudioDeviceModule adm = createJavaAudioDevice();
 
     // Create peer connection factory.
     if (options != null) {
@@ -462,80 +450,6 @@ public class PeerConnectionClient {
     adm.release();
   }
 
-  AudioDeviceModule createLegacyAudioDevice() {
-    // Enable/disable OpenSL ES playback.
-    if (!peerConnectionParameters.useOpenSLES) {
-      Log.d(TAG, "Disable OpenSL ES audio even if device supports it");
-      WebRtcAudioManager.setBlacklistDeviceForOpenSLESUsage(true /* enable */);
-    } else {
-      Log.d(TAG, "Allow OpenSL ES audio if device supports it");
-      WebRtcAudioManager.setBlacklistDeviceForOpenSLESUsage(false);
-    }
-
-    if (peerConnectionParameters.disableBuiltInAEC) {
-      Log.d(TAG, "Disable built-in AEC even if device supports it");
-      WebRtcAudioUtils.setWebRtcBasedAcousticEchoCanceler(true);
-    } else {
-      Log.d(TAG, "Enable built-in AEC if device supports it");
-      WebRtcAudioUtils.setWebRtcBasedAcousticEchoCanceler(false);
-    }
-
-    if (peerConnectionParameters.disableBuiltInNS) {
-      Log.d(TAG, "Disable built-in NS even if device supports it");
-      WebRtcAudioUtils.setWebRtcBasedNoiseSuppressor(true);
-    } else {
-      Log.d(TAG, "Enable built-in NS if device supports it");
-      WebRtcAudioUtils.setWebRtcBasedNoiseSuppressor(false);
-    }
-
-    WebRtcAudioRecord.setOnAudioSamplesReady(saveRecordedAudioToFile);
-
-    // Set audio record error callbacks.
-    WebRtcAudioRecord.setErrorCallback(new WebRtcAudioRecordErrorCallback() {
-      @Override
-      public void onWebRtcAudioRecordInitError(String errorMessage) {
-        Log.e(TAG, "onWebRtcAudioRecordInitError: " + errorMessage);
-        reportError(errorMessage);
-      }
-
-      @Override
-      public void onWebRtcAudioRecordStartError(
-          AudioRecordStartErrorCode errorCode, String errorMessage) {
-        Log.e(TAG, "onWebRtcAudioRecordStartError: " + errorCode + ". " + errorMessage);
-        reportError(errorMessage);
-      }
-
-      @Override
-      public void onWebRtcAudioRecordError(String errorMessage) {
-        Log.e(TAG, "onWebRtcAudioRecordError: " + errorMessage);
-        reportError(errorMessage);
-      }
-    });
-
-    WebRtcAudioTrack.setErrorCallback(new WebRtcAudioTrack.ErrorCallback() {
-      @Override
-      public void onWebRtcAudioTrackInitError(String errorMessage) {
-        Log.e(TAG, "onWebRtcAudioTrackInitError: " + errorMessage);
-        reportError(errorMessage);
-      }
-
-      @Override
-      public void onWebRtcAudioTrackStartError(
-          AudioTrackStartErrorCode errorCode, String errorMessage) {
-        Log.e(TAG, "onWebRtcAudioTrackStartError: " + errorCode + ". " + errorMessage);
-        reportError(errorMessage);
-      }
-
-      @Override
-      public void onWebRtcAudioTrackError(String errorMessage) {
-        Log.e(TAG, "onWebRtcAudioTrackError: " + errorMessage);
-        reportError(errorMessage);
-      }
-    });
-
-    return new LegacyAudioDeviceModule();
-  }
-
   AudioDeviceModule createJavaAudioDevice() {
     // Enable/disable OpenSL ES playback.
     if (!peerConnectionParameters.useOpenSLES) {
diff --git a/examples/androidapp/src/org/appspot/apprtc/RecordedAudioToFileController.java b/examples/androidapp/src/org/appspot/apprtc/RecordedAudioToFileController.java
index fee444a984..06943f7eac 100644
--- a/examples/androidapp/src/org/appspot/apprtc/RecordedAudioToFileController.java
+++ b/examples/androidapp/src/org/appspot/apprtc/RecordedAudioToFileController.java
@@ -22,15 +22,12 @@ import java.io.OutputStream;
 import java.util.concurrent.ExecutorService;
 import org.webrtc.audio.JavaAudioDeviceModule;
 import org.webrtc.audio.JavaAudioDeviceModule.SamplesReadyCallback;
-import org.webrtc.voiceengine.WebRtcAudioRecord;
-import org.webrtc.voiceengine.WebRtcAudioRecord.WebRtcAudioRecordSamplesReadyCallback;
 
 /**
  * Implements the AudioRecordSamplesReadyCallback interface and writes
  * recorded raw audio samples to an output file.
  */
-public class RecordedAudioToFileController
-    implements SamplesReadyCallback, WebRtcAudioRecordSamplesReadyCallback {
+public class RecordedAudioToFileController implements SamplesReadyCallback {
   private static final String TAG = "RecordedAudioToFile";
   private static final long MAX_FILE_SIZE_IN_BYTES = 58348800L;
 
@@ -106,13 +103,6 @@ public class RecordedAudioToFileController
     Log.d(TAG, "Opened file for recording: " + fileName);
   }
 
-  // Called when new audio samples are ready.
-  @Override
-  public void onWebRtcAudioRecordSamplesReady(WebRtcAudioRecord.AudioSamples samples) {
-    onWebRtcAudioRecordSamplesReady(new JavaAudioDeviceModule.AudioSamples(samples.getAudioFormat(),
-        samples.getChannelCount(), samples.getSampleRate(), samples.getData()));
-  }
-
   // Called when new audio samples are ready.
   @Override
   public void onWebRtcAudioRecordSamplesReady(JavaAudioDeviceModule.AudioSamples samples) {
diff --git a/examples/androidapp/src/org/appspot/apprtc/SettingsActivity.java b/examples/androidapp/src/org/appspot/apprtc/SettingsActivity.java
index 8a556c335f..e9c6f6b798 100644
--- a/examples/androidapp/src/org/appspot/apprtc/SettingsActivity.java
+++ b/examples/androidapp/src/org/appspot/apprtc/SettingsActivity.java
@@ -62,7 +62,6 @@ public class SettingsActivity extends Activity implements OnSharedPreferenceChan
   private String keyprefDataProtocol;
   private String keyprefNegotiated;
   private String keyprefDataId;
-  private String keyprefUseLegacyAudioDevice;
 
   @Override
   protected void onCreate(Bundle savedInstanceState) {
@@ -106,7 +105,6 @@ public class SettingsActivity extends Activity implements OnSharedPreferenceChan
     keyPrefDisplayHud = getString(R.string.pref_displayhud_key);
     keyPrefTracing = getString(R.string.pref_tracing_key);
     keyprefEnabledRtcEventLog = getString(R.string.pref_enable_rtceventlog_key);
-    keyprefUseLegacyAudioDevice = getString(R.string.pref_use_legacy_audio_device_key);
 
     // Display the fragment as the main content.
     settingsFragment = new SettingsFragment();
@@ -164,7 +162,6 @@ public class SettingsActivity extends Activity implements OnSharedPreferenceChan
     updateSummaryB(sharedPreferences, keyPrefDisplayHud);
     updateSummaryB(sharedPreferences, keyPrefTracing);
     updateSummaryB(sharedPreferences, keyprefEnabledRtcEventLog);
-    updateSummaryB(sharedPreferences, keyprefUseLegacyAudioDevice);
 
     if (!Camera2Enumerator.isSupported(this)) {
       Preference camera2Preference = settingsFragment.findPreference(keyprefCamera2);
@@ -242,8 +239,7 @@ public class SettingsActivity extends Activity implements OnSharedPreferenceChan
         || key.equals(keyprefEnableDataChannel)
         || key.equals(keyprefOrdered)
         || key.equals(keyprefNegotiated)
-        || key.equals(keyprefEnabledRtcEventLog)
-        || key.equals(keyprefUseLegacyAudioDevice)) {
+        || key.equals(keyprefEnabledRtcEventLog)) {
       updateSummaryB(sharedPreferences, key);
     } else if (key.equals(keyprefSpeakerphone)) {
       updateSummaryList(sharedPreferences, key);
diff --git a/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java b/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java
index c165f59b03..96a4178eec 100644
--- a/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java
+++ b/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java
@@ -309,7 +309,7 @@ public class PeerConnectionClientTest implements PeerConnectionEvents {
         false, /* saveInputAudioToFile */
         false /* useOpenSLES */, false /* disableBuiltInAEC */, false /* disableBuiltInAGC */,
         false /* disableBuiltInNS */, false /* disableWebRtcAGC */, false /* enableRtcEventLog */,
-        false /* useLegacyAudioDevice */, null /* dataChannelParameters */);
+        null /* dataChannelParameters */);
   }
 
   private VideoCapturer createCameraCapturer(boolean captureToTexture) {
@@ -346,7 +346,7 @@ public class PeerConnectionClientTest implements PeerConnectionEvents {
         false, /* saveInputAudioToFile */
         false /* useOpenSLES */, false /* disableBuiltInAEC */, false /* disableBuiltInAGC */,
         false /* disableBuiltInNS */, false /* disableWebRtcAGC */, false /* enableRtcEventLog */,
-        false /* useLegacyAudioDevice */, null /* dataChannelParameters */);
+        null /* dataChannelParameters */);
   }
 
   @Before