diff --git a/Android.bp b/Android.bp
index 302e250..7a2bb9b 100644
--- a/Android.bp
+++ b/Android.bp
@@ -52,8 +52,8 @@
         "aidl/android/media/VolumeShaperOperationFlag.aidl",
         "aidl/android/media/VolumeShaperState.aidl",
     ],
-    imports: [
-        "android.media.audio.common.types-V2",
+    defaults: [
+        "latest_android_media_audio_common_types_import_interface",
     ],
     backend: {
         cpp: {
@@ -113,8 +113,8 @@
     srcs: [
         "aidl/android/media/audio/IHalAdapterVendorExtension.aidl",
     ],
-    imports: [
-        "android.hardware.audio.core-V1",
+    defaults: [
+        "latest_android_hardware_audio_core_import_interface",
     ],
     backend: {
         // The C++ backend is disabled transitively due to use of FMQ by the audio core HAL.
diff --git a/media/libaaudio/src/Android.bp b/media/libaaudio/src/Android.bp
index 30f451a..7882951 100644
--- a/media/libaaudio/src/Android.bp
+++ b/media/libaaudio/src/Android.bp
@@ -254,6 +254,9 @@
     name: "aaudio-aidl",
     unstable: true,
     local_include_dir: "binding/aidl",
+    defaults: [
+        "latest_android_media_audio_common_types_import_interface",
+    ],
     srcs: [
         "binding/aidl/aaudio/Endpoint.aidl",
         "binding/aidl/aaudio/RingBuffer.aidl",
@@ -264,7 +267,6 @@
         "binding/aidl/aaudio/IAAudioService.aidl",
     ],
     imports: [
-        "android.media.audio.common.types-V2",
         "audioclient-types-aidl",
         "shared-file-region-aidl",
         "framework-permission-aidl",
diff --git a/media/libaudioclient/Android.bp b/media/libaudioclient/Android.bp
index 01e3d53..2c9e173 100644
--- a/media/libaudioclient/Android.bp
+++ b/media/libaudioclient/Android.bp
@@ -255,8 +255,10 @@
         "aidl/android/media/IEffect.aidl",
         "aidl/android/media/IEffectClient.aidl",
     ],
+    defaults: [
+        "latest_android_media_audio_common_types_import_interface",
+    ],
     imports: [
-        "android.media.audio.common.types-V2",
         "shared-file-region-aidl",
     ],
     backend: {
@@ -309,8 +311,10 @@
         "aidl/android/media/TrackSecondaryOutputInfo.aidl",
         "aidl/android/media/SurroundSoundConfig.aidl",
     ],
+    defaults: [
+        "latest_android_media_audio_common_types_import_interface",
+    ],
     imports: [
-        "android.media.audio.common.types-V2",
         "framework-permission-aidl",
     ],
     backend: {
@@ -351,12 +355,11 @@
         "aidl/android/media/AudioVolumeGroup.aidl",
         "aidl/android/media/DeviceRole.aidl",
         "aidl/android/media/SoundTriggerSession.aidl",
-        "aidl/android/media/SpatializationLevel.aidl",
-        "aidl/android/media/SpatializationMode.aidl",
-        "aidl/android/media/SpatializerHeadTrackingMode.aidl",
+    ],
+    defaults: [
+        "latest_android_media_audio_common_types_import_interface",
     ],
     imports: [
-        "android.media.audio.common.types-V2",
         "audioclient-types-aidl",
     ],
     backend: {
@@ -402,8 +405,10 @@
         "aidl/android/media/ISoundDoseCallback.aidl",
         "aidl/android/media/SoundDoseRecord.aidl",
     ],
+    defaults: [
+        "latest_android_media_audio_common_types_import_interface",
+    ],
     imports: [
-        "android.media.audio.common.types-V2",
         "audioclient-types-aidl",
         "av-types-aidl",
         "effect-aidl",
@@ -439,8 +444,10 @@
         "aidl/android/media/IAudioPolicyService.aidl",
         "aidl/android/media/IAudioPolicyServiceClient.aidl",
     ],
+    defaults: [
+        "latest_android_media_audio_common_types_import_interface",
+    ],
     imports: [
-        "android.media.audio.common.types-V2",
         "audioclient-types-aidl",
         "audiopolicy-types-aidl",
         "capture_state_listener-aidl",
@@ -474,6 +481,9 @@
         "aidl/android/media/ISpatializer.aidl",
         "aidl/android/media/ISpatializerHeadTrackingCallback.aidl",
     ],
+    defaults: [
+        "latest_android_media_audio_common_types_import_interface",
+    ],
     imports: [
         "audiopolicy-types-aidl",
     ],
diff --git a/media/libaudioclient/aidl/android/media/INativeSpatializerCallback.aidl b/media/libaudioclient/aidl/android/media/INativeSpatializerCallback.aidl
index 88b8108..8b30b29 100644
--- a/media/libaudioclient/aidl/android/media/INativeSpatializerCallback.aidl
+++ b/media/libaudioclient/aidl/android/media/INativeSpatializerCallback.aidl
@@ -16,8 +16,7 @@
 
 package android.media;
 
-import android.media.SpatializationLevel;
-import android.media.SpatializerHeadTrackingMode;
+import android.media.audio.common.Spatialization;
 
 /**
  * The INativeSpatializerCallback interface is a callback associated to the
@@ -30,7 +29,7 @@
     /** Called when the spatialization level applied by the spatializer changes
      * (e.g. when the spatializer is enabled or disabled)
      */
-    void onLevelChanged(SpatializationLevel level);
+    void onLevelChanged(Spatialization.Level level);
 
     /** Called when the output stream the Spatializer is attached to changes.
      * Indicates the IO Handle of the new output.
diff --git a/media/libaudioclient/aidl/android/media/ISpatializer.aidl b/media/libaudioclient/aidl/android/media/ISpatializer.aidl
index 250c450..37dd776 100644
--- a/media/libaudioclient/aidl/android/media/ISpatializer.aidl
+++ b/media/libaudioclient/aidl/android/media/ISpatializer.aidl
@@ -16,11 +16,9 @@
 
 package android.media;
 
+import android.media.audio.common.HeadTracking;
+import android.media.audio.common.Spatialization;
 import android.media.ISpatializerHeadTrackingCallback;
-import android.media.SpatializationLevel;
-import android.media.SpatializationMode;
-import android.media.SpatializerHeadTrackingMode;
-
 
 /**
  * The ISpatializer interface is used to control the native audio service implementation
@@ -34,21 +32,25 @@
     /** Releases a ISpatializer interface previously acquired. */
     void release();
 
-    /** Reports the list of supported spatialization levels (see SpatializationLevel.aidl).
+    /**
+     * Reports the list of supported spatialization levels.
      * The list should never be empty if an ISpatializer interface was successfully
      * retrieved with IAudioPolicyService.getSpatializer().
      */
-    SpatializationLevel[] getSupportedLevels();
+    Spatialization.Level[] getSupportedLevels();
 
-    /** Selects the desired spatialization level (see SpatializationLevel.aidl). Selecting a level
-     * different from SpatializationLevel.NONE with create the specialized multichannel output
+    /**
+     * Selects the desired spatialization level. Selecting a level
+     * different from Spatializer.Level.NONE with create the specialized multichannel output
      * mixer, create and enable the spatializer effect and let the audio policy attach eligible
      * AudioTrack to this output stream.
      */
-    void setLevel(SpatializationLevel level);
+    void setLevel(Spatialization.Level level);
 
-    /** Gets the selected spatialization level (see SpatializationLevel.aidl) */
-    SpatializationLevel getLevel();
+    /**
+     * Gets the selected spatialization level.
+     */
+    Spatialization.Level getLevel();
 
     /** Reports if the spatializer engine supports head tracking or not.
      * This is a pre condition independent of the fact that a head tracking sensor is
@@ -56,26 +58,33 @@
      */
     boolean isHeadTrackingSupported();
 
-    /** Reports the list of supported head tracking modes (see SpatializerHeadTrackingMode.aidl).
+    /**
+     * Reports the list of supported head tracking modes.
      * The list always contains SpatializerHeadTrackingMode.DISABLED and can include other modes
      * if the spatializer effect implementation supports head tracking.
      * The result does not depend on currently connected sensors but reflects the capabilities
      * when sensors are available.
      */
-    SpatializerHeadTrackingMode[] getSupportedHeadTrackingModes();
+    HeadTracking.Mode[] getSupportedHeadTrackingModes();
 
-    /** Selects the desired head tracking mode (see SpatializerHeadTrackingMode.aidl) */
-    void setDesiredHeadTrackingMode(SpatializerHeadTrackingMode mode);
+    /**
+     * Selects the desired head tracking mode.
+     */
+    void setDesiredHeadTrackingMode(HeadTracking.Mode mode);
 
-    /** Gets the actual head tracking mode. Can be different from the desired mode if conditions to
+    /**
+     * Gets the actual head tracking mode. Can be different from the desired mode if conditions to
      * enable the desired mode are not met (e.g if the head tracking device was removed)
      */
-    SpatializerHeadTrackingMode getActualHeadTrackingMode();
+    HeadTracking.Mode getActualHeadTrackingMode();
 
-    /** Reset the head tracking algorithm to consider current head pose as neutral */
+    /**
+     * Reset the head tracking algorithm to consider current head pose as neutral
+     */
     void recenterHeadTracker();
 
-    /** Set the screen to stage transform to use by the head tracking algorithm
+    /**
+     * Set the screen to stage transform to use by the head tracking algorithm
      * The screen to stage transform is conveyed as a vector of 6 elements,
      * where the first three are a translation vector and
      * the last three are a rotation vector.
@@ -123,11 +132,12 @@
      */
     void setFoldState(boolean folded);
 
-    /** Reports the list of supported spatialization modess (see SpatializationMode.aidl).
+    /**
+     * Reports the list of supported spatialization modess.
      * The list should never be empty if an ISpatializer interface was successfully
      * retrieved with IAudioPolicyService.getSpatializer().
      */
-    SpatializationMode[] getSupportedModes();
+    Spatialization.Mode[] getSupportedModes();
 
     /**
      * Registers a callback to monitor head tracking functions.
diff --git a/media/libaudioclient/aidl/android/media/ISpatializerHeadTrackingCallback.aidl b/media/libaudioclient/aidl/android/media/ISpatializerHeadTrackingCallback.aidl
index 23d5e13..615b971 100644
--- a/media/libaudioclient/aidl/android/media/ISpatializerHeadTrackingCallback.aidl
+++ b/media/libaudioclient/aidl/android/media/ISpatializerHeadTrackingCallback.aidl
@@ -16,8 +16,7 @@
 
 package android.media;
 
-import android.media.SpatializationLevel;
-import android.media.SpatializerHeadTrackingMode;
+import android.media.audio.common.HeadTracking;
 
 /**
  * The ISpatializerHeadTrackingCallback interface is a callback associated to the
@@ -28,7 +27,7 @@
 oneway interface ISpatializerHeadTrackingCallback {
     /** Called when the head tracking mode has changed
      */
-    void onHeadTrackingModeChanged(SpatializerHeadTrackingMode mode);
+    void onHeadTrackingModeChanged(HeadTracking.Mode mode);
 
     /** Called when the head to stage pose hase been updated
      * The head to stage pose is conveyed as a vector of 6 elements,
diff --git a/media/libaudioclient/aidl/android/media/SpatializationLevel.aidl b/media/libaudioclient/aidl/android/media/SpatializationLevel.aidl
deleted file mode 100644
index 961c5a1..0000000
--- a/media/libaudioclient/aidl/android/media/SpatializationLevel.aidl
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.media;
-
-/**
- * The spatialization level supported by the spatializer stage effect implementation.
- * Used by methods of the ISpatializer interface.
- * {@hide}
- */
-@Backing(type="byte")
-enum SpatializationLevel {
-    /** Spatialization is disabled. */
-    NONE = 0,
-    /** The spatializer accepts audio with positional multichannel masks (e.g 5.1). */
-    SPATIALIZER_MULTICHANNEL = 1,
-    /** The spatializer accepts audio made of a channel bed of positional multichannels (e.g 5.1)
-     * and audio objects positioned independently via meta data.
-     */
-    SPATIALIZER_MCHAN_BED_PLUS_OBJECTS = 2,
-}
diff --git a/media/libaudioclient/aidl/android/media/SpatializationMode.aidl b/media/libaudioclient/aidl/android/media/SpatializationMode.aidl
deleted file mode 100644
index eaaff37..0000000
--- a/media/libaudioclient/aidl/android/media/SpatializationMode.aidl
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.media;
-
-/**
- * The spatialization mode supported by the spatializer stage effect implementation.
- * Used by methods of the ISpatializer interface.
- * {@hide}
- */
-@Backing(type="byte")
-enum SpatializationMode {
-    /** The spatializer supports binaural mode (over headphones type devices). */
-    SPATIALIZER_BINAURAL = 0,
-    /** The spatializer supports transaural mode (over speaker type devices). */
-    SPATIALIZER_TRANSAURAL = 1,
-}
diff --git a/media/libaudioclient/aidl/android/media/SpatializerHeadTrackingMode.aidl b/media/libaudioclient/aidl/android/media/SpatializerHeadTrackingMode.aidl
deleted file mode 100644
index 58e0f61..0000000
--- a/media/libaudioclient/aidl/android/media/SpatializerHeadTrackingMode.aidl
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.media;
-
-
-/**
- * The head tracking mode supported by the spatializer effect implementation.
- * Used by methods of the ISpatializer interface.
- * {@hide}
- */
-@Backing(type="byte")
-enum SpatializerHeadTrackingMode {
-    /** Head tracking is active in a mode not listed below (forward compatibility) */
-    OTHER = 0,
-    /** Head tracking is disabled */
-    DISABLED = 1,
-    /** Head tracking is performed relative to the real work environment */
-    RELATIVE_WORLD = 2,
-    /** Head tracking is performed relative to the device's screen */
-    RELATIVE_SCREEN = 3,
-}
diff --git a/services/audioflinger/Android.bp b/services/audioflinger/Android.bp
index 0cd6243..0c878c9 100644
--- a/services/audioflinger/Android.bp
+++ b/services/audioflinger/Android.bp
@@ -142,9 +142,10 @@
     name: "libaudioflinger",
 
     defaults: [
-        "latest_android_media_audio_common_types_cpp_shared",
-        "latest_android_hardware_audio_core_sounddose_ndk_shared",
         "audioflinger_flags_defaults",
+        "latest_android_hardware_audio_core_sounddose_ndk_export_shared_lib_header",
+        "latest_android_hardware_audio_core_sounddose_ndk_shared",
+        "latest_android_media_audio_common_types_cpp_shared",
     ],
 
     srcs: [
@@ -217,7 +218,6 @@
 
     export_shared_lib_headers: [
         "libpermission",
-        "android.hardware.audio.core.sounddose-V1-ndk",
     ],
 
     cflags: [
diff --git a/services/audiopolicy/service/AudioPolicyService.cpp b/services/audiopolicy/service/AudioPolicyService.cpp
index 041aa1c..5fbbc30 100644
--- a/services/audiopolicy/service/AudioPolicyService.cpp
+++ b/services/audiopolicy/service/AudioPolicyService.cpp
@@ -52,6 +52,7 @@
 
 namespace android {
 using binder::Status;
+using media::audio::common::Spatialization;
 
 static const char kDeadlockedString[] = "AudioPolicyService may be deadlocked\n";
 static const char kCmdDeadlockedString[] = "AudioPolicyService command thread may be deadlocked\n";
@@ -574,7 +575,7 @@
 
     if (mSpatializer != nullptr) {
         // Note: mSpatializer != nullptr =>  mAudioPolicyManager != nullptr
-        if (mSpatializer->getLevel() != media::SpatializationLevel::NONE) {
+        if (mSpatializer->getLevel() != Spatialization::Level::NONE) {
             audio_io_handle_t currentOutput = mSpatializer->getOutput();
             audio_io_handle_t newOutput;
             const audio_attributes_t attr = attributes_initializer(AUDIO_USAGE_MEDIA);
@@ -599,8 +600,8 @@
             if (status != NO_ERROR) {
                 mAudioPolicyManager->releaseSpatializerOutput(newOutput);
             }
-        } else if (mSpatializer->getLevel() == media::SpatializationLevel::NONE
-                               && mSpatializer->getOutput() != AUDIO_IO_HANDLE_NONE) {
+        } else if (mSpatializer->getLevel() == Spatialization::Level::NONE &&
+                   mSpatializer->getOutput() != AUDIO_IO_HANDLE_NONE) {
             audio_io_handle_t output = mSpatializer->detachOutput();
 
             if (output != AUDIO_IO_HANDLE_NONE) {
diff --git a/services/audiopolicy/service/Spatializer.cpp b/services/audiopolicy/service/Spatializer.cpp
index 1245b1e..7859c2c 100644
--- a/services/audiopolicy/service/Spatializer.cpp
+++ b/services/audiopolicy/service/Spatializer.cpp
@@ -43,16 +43,16 @@
 
 namespace android {
 
-using aidl_utils::statusTFromBinderStatus;
 using aidl_utils::binderStatusFromStatusT;
+using aidl_utils::statusTFromBinderStatus;
 using android::content::AttributionSourceState;
 using binder::Status;
 using media::HeadTrackingMode;
 using media::Pose3f;
-using media::SpatializationLevel;
-using media::SpatializationMode;
-using media::SpatializerHeadTrackingMode;
 using media::SensorPoseProvider;
+using media::audio::common::HeadTracking;
+using media::audio::common::Spatialization;
+using ::android::internal::ToString;
 
 using namespace std::chrono_literals;
 
@@ -302,7 +302,7 @@
     }
     mSupportsHeadTracking = supportsHeadTracking[0];
 
-    std::vector<media::SpatializationLevel> spatializationLevels;
+    std::vector<Spatialization::Level> spatializationLevels;
     status = getHalParameter<true>(effect, SPATIALIZER_PARAM_SUPPORTED_LEVELS,
             &spatializationLevels);
     if (status != NO_ERROR) {
@@ -316,7 +316,7 @@
             ALOGW("%s: ignoring spatializationLevel:%d", __func__, (int)spatializationLevel);
             continue;
         }
-        if (spatializationLevel == media::SpatializationLevel::NONE) {
+        if (spatializationLevel == Spatialization::Level::NONE) {
             noneLevelFound = true;
         } else {
             activeLevelFound = true;
@@ -330,7 +330,7 @@
         return BAD_VALUE;
     }
 
-    std::vector<media::SpatializationMode> spatializationModes;
+    std::vector<Spatialization::Mode> spatializationModes;
     status = getHalParameter<true>(effect, SPATIALIZER_PARAM_SUPPORTED_SPATIALIZATION_MODES,
             &spatializationModes);
     if (status != NO_ERROR) {
@@ -373,9 +373,9 @@
 
     // Currently we expose only RELATIVE_WORLD.
     // This is a limitation of the head tracking library based on a UX choice.
-    mHeadTrackingModes.push_back(SpatializerHeadTrackingMode::DISABLED);
+    mHeadTrackingModes.push_back(HeadTracking::Mode::DISABLED);
     if (mSupportsHeadTracking) {
-        mHeadTrackingModes.push_back(SpatializerHeadTrackingMode::RELATIVE_WORLD);
+        mHeadTrackingModes.push_back(HeadTracking::Mode::RELATIVE_WORLD);
     }
     mediametrics::LogItem(mMetricsId)
         .set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_CREATE)
@@ -440,7 +440,7 @@
 void Spatializer::binderDied(__unused const wp<IBinder> &who) {
     {
         std::lock_guard lock(mLock);
-        mLevel = SpatializationLevel::NONE;
+        mLevel = Spatialization::Level::NONE;
         mSpatializerCallback.clear();
     }
     ALOGV("%s", __func__);
@@ -448,20 +448,20 @@
 }
 
 // ISpatializer
-Status Spatializer::getSupportedLevels(std::vector<SpatializationLevel> *levels) {
+Status Spatializer::getSupportedLevels(std::vector<Spatialization::Level> *levels) {
     ALOGV("%s", __func__);
     if (levels == nullptr) {
         return binderStatusFromStatusT(BAD_VALUE);
     }
-    // SpatializationLevel::NONE is already required from the effect or we don't load it.
+    // Spatialization::Level::NONE is already required from the effect or we don't load it.
     levels->insert(levels->end(), mLevels.begin(), mLevels.end());
     return Status::ok();
 }
 
-Status Spatializer::setLevel(SpatializationLevel level) {
-    ALOGV("%s level %s", __func__, media::toString(level).c_str());
-    mLocalLog.log("%s with %s", __func__, media::toString(level).c_str());
-    if (level != SpatializationLevel::NONE
+Status Spatializer::setLevel(Spatialization::Level level) {
+    ALOGV("%s level %s", __func__,  ToString(level).c_str());
+    mLocalLog.log("%s with %s", __func__, ToString(level).c_str());
+    if (level != Spatialization::Level::NONE
             && std::find(mLevels.begin(), mLevels.end(), level) == mLevels.end()) {
         return binderStatusFromStatusT(BAD_VALUE);
     }
@@ -488,7 +488,7 @@
     return Status::ok();
 }
 
-Status Spatializer::getLevel(SpatializationLevel *level) {
+Status Spatializer::getLevel(Spatialization::Level *level) {
     if (level == nullptr) {
         return binderStatusFromStatusT(BAD_VALUE);
     }
@@ -509,7 +509,7 @@
 }
 
 Status Spatializer::getSupportedHeadTrackingModes(
-        std::vector<SpatializerHeadTrackingMode>* modes) {
+        std::vector<HeadTracking::Mode>* modes) {
     std::lock_guard lock(mLock);
     ALOGV("%s", __func__);
     if (modes == nullptr) {
@@ -519,24 +519,24 @@
     return Status::ok();
 }
 
-Status Spatializer::setDesiredHeadTrackingMode(SpatializerHeadTrackingMode mode) {
-    ALOGV("%s mode %s", __func__, media::toString(mode).c_str());
+Status Spatializer::setDesiredHeadTrackingMode(HeadTracking::Mode mode) {
+    ALOGV("%s mode %s", __func__, ToString(mode).c_str());
 
     if (!mSupportsHeadTracking) {
         return binderStatusFromStatusT(INVALID_OPERATION);
     }
-    mLocalLog.log("%s with %s", __func__, media::toString(mode).c_str());
+    mLocalLog.log("%s with %s", __func__, ToString(mode).c_str());
     std::lock_guard lock(mLock);
     switch (mode) {
-        case SpatializerHeadTrackingMode::OTHER:
+        case HeadTracking::Mode::OTHER:
             return binderStatusFromStatusT(BAD_VALUE);
-        case SpatializerHeadTrackingMode::DISABLED:
+        case HeadTracking::Mode::DISABLED:
             mDesiredHeadTrackingMode = HeadTrackingMode::STATIC;
             break;
-        case SpatializerHeadTrackingMode::RELATIVE_WORLD:
+        case HeadTracking::Mode::RELATIVE_WORLD:
             mDesiredHeadTrackingMode = HeadTrackingMode::WORLD_RELATIVE;
             break;
-        case SpatializerHeadTrackingMode::RELATIVE_SCREEN:
+        case HeadTracking::Mode::RELATIVE_SCREEN:
             mDesiredHeadTrackingMode = HeadTrackingMode::SCREEN_RELATIVE;
             break;
     }
@@ -547,7 +547,7 @@
     return Status::ok();
 }
 
-Status Spatializer::getActualHeadTrackingMode(SpatializerHeadTrackingMode *mode) {
+Status Spatializer::getActualHeadTrackingMode(HeadTracking::Mode *mode) {
     if (mode == nullptr) {
         return binderStatusFromStatusT(BAD_VALUE);
     }
@@ -600,8 +600,8 @@
         binder->unlinkToDeath(this);
         mSpatializerCallback.clear();
 
-        levelChanged = mLevel != SpatializationLevel::NONE;
-        mLevel = SpatializationLevel::NONE;
+        levelChanged = mLevel != Spatialization::Level::NONE;
+        mLevel = Spatialization::Level::NONE;
     }
 
     if (levelChanged) {
@@ -690,7 +690,7 @@
     return Status::ok();
 }
 
-Status Spatializer::getSupportedModes(std::vector<SpatializationMode> *modes) {
+Status Spatializer::getSupportedModes(std::vector<Spatialization::Mode> *modes) {
     ALOGV("%s", __func__);
     if (modes == nullptr) {
         return binderStatusFromStatusT(BAD_VALUE);
@@ -771,7 +771,7 @@
     const std::vector<float> headToStage(6, 0.0);
     setEffectParameter_l(SPATIALIZER_PARAM_HEAD_TO_STAGE, headToStage);
     setEffectParameter_l(SPATIALIZER_PARAM_HEADTRACKING_MODE,
-            std::vector<SpatializerHeadTrackingMode>{SpatializerHeadTrackingMode::DISABLED});
+            std::vector<HeadTracking::Mode>{HeadTracking::Mode::DISABLED});
 }
 
 void Spatializer::onHeadToStagePoseMsg(const std::vector<float>& headToStage) {
@@ -804,21 +804,21 @@
 void Spatializer::onActualModeChangeMsg(HeadTrackingMode mode) {
     ALOGV("%s(%d)", __func__, (int) mode);
     sp<media::ISpatializerHeadTrackingCallback> callback;
-    SpatializerHeadTrackingMode spatializerMode;
+    HeadTracking::Mode spatializerMode;
     {
         std::lock_guard lock(mLock);
         if (!mSupportsHeadTracking) {
-            spatializerMode = SpatializerHeadTrackingMode::DISABLED;
+            spatializerMode = HeadTracking::Mode::DISABLED;
         } else {
             switch (mode) {
                 case HeadTrackingMode::STATIC:
-                    spatializerMode = SpatializerHeadTrackingMode::DISABLED;
+                    spatializerMode = HeadTracking::Mode::DISABLED;
                     break;
                 case HeadTrackingMode::WORLD_RELATIVE:
-                    spatializerMode = SpatializerHeadTrackingMode::RELATIVE_WORLD;
+                    spatializerMode = HeadTracking::Mode::RELATIVE_WORLD;
                     break;
                 case HeadTrackingMode::SCREEN_RELATIVE:
-                    spatializerMode = SpatializerHeadTrackingMode::RELATIVE_SCREEN;
+                    spatializerMode = HeadTracking::Mode::RELATIVE_SCREEN;
                     break;
                 default:
                     LOG_ALWAYS_FATAL("Unknown mode: %d", mode);
@@ -826,11 +826,11 @@
         }
         mActualHeadTrackingMode = spatializerMode;
         if (mEngine != nullptr) {
-            if (spatializerMode == SpatializerHeadTrackingMode::DISABLED) {
+            if (spatializerMode == HeadTracking::Mode::DISABLED) {
                 resetEngineHeadPose_l();
             } else {
                 setEffectParameter_l(SPATIALIZER_PARAM_HEADTRACKING_MODE,
-                                     std::vector<SpatializerHeadTrackingMode>{spatializerMode});
+                                     std::vector<HeadTracking::Mode>{spatializerMode});
             }
         }
         callback = mHeadTrackingCallback;
@@ -974,12 +974,12 @@
         if (mPoseController != nullptr) {
             // TODO(b/253297301, b/255433067) reenable low latency condition check
             // for Head Tracking after Bluetooth HAL supports it correctly.
-            if (mNumActiveTracks > 0 && mLevel != SpatializationLevel::NONE
+            if (mNumActiveTracks > 0 && mLevel != Spatialization::Level::NONE
                 && mDesiredHeadTrackingMode != HeadTrackingMode::STATIC
                 && mHeadSensor != SpatializerPoseController::INVALID_SENSOR) {
                 if (mEngine != nullptr) {
                     setEffectParameter_l(SPATIALIZER_PARAM_HEADTRACKING_MODE,
-                            std::vector<SpatializerHeadTrackingMode>{mActualHeadTrackingMode});
+                            std::vector<HeadTracking::Mode>{mActualHeadTrackingMode});
                 }
                 mPoseController->setHeadSensor(mHeadSensor);
                 mPoseController->setScreenSensor(mScreenSensor);
@@ -996,20 +996,20 @@
     if (mOutput != AUDIO_IO_HANDLE_NONE && supportsSetLatencyMode) {
         const status_t status =
                 AudioSystem::setRequestedLatencyMode(mOutput, requestedLatencyMode);
-        ALOGD("%s: setRequestedLatencyMode for output thread(%d) to %s returned %d",
-                __func__, mOutput, toString(requestedLatencyMode).c_str(), status);
+        ALOGD("%s: setRequestedLatencyMode for output thread(%d) to %s returned %d", __func__,
+              mOutput, toString(requestedLatencyMode).c_str(), status);
     }
 }
 
 void Spatializer::checkEngineState_l() {
     if (mEngine != nullptr) {
-        if (mLevel != SpatializationLevel::NONE && mNumActiveTracks > 0) {
+        if (mLevel != Spatialization::Level::NONE && mNumActiveTracks > 0) {
             mEngine->setEnabled(true);
             setEffectParameter_l(SPATIALIZER_PARAM_LEVEL,
-                    std::vector<SpatializationLevel>{mLevel});
+                    std::vector<Spatialization::Level>{mLevel});
         } else {
             setEffectParameter_l(SPATIALIZER_PARAM_LEVEL,
-                    std::vector<SpatializationLevel>{SpatializationLevel::NONE});
+                    std::vector<Spatialization::Level>{Spatialization::Level::NONE});
             mEngine->setEnabled(false);
         }
     }
@@ -1067,21 +1067,21 @@
     // 1. Capabilities (mLevels, mHeadTrackingModes, mSpatializationModes, mChannelMasks, etc)
     ss.append(prefixSpace).append("Supported levels: [");
     for (auto& level : mLevels) {
-        base::StringAppendF(&ss, " %s", media::toString(level).c_str());
+        base::StringAppendF(&ss, " %s", ToString(level).c_str());
     }
-    base::StringAppendF(&ss, "], mLevel: %s", media::toString(mLevel).c_str());
+    base::StringAppendF(&ss, "], mLevel: %s", ToString(mLevel).c_str());
 
     base::StringAppendF(&ss, "\n%smHeadTrackingModes: [", prefixSpace.c_str());
     for (auto& mode : mHeadTrackingModes) {
-        base::StringAppendF(&ss, " %s", media::toString(mode).c_str());
+        base::StringAppendF(&ss, " %s", ToString(mode).c_str());
     }
     base::StringAppendF(&ss, "], Desired: %s, Actual %s\n",
                         media::toString(mDesiredHeadTrackingMode).c_str(),
-                        media::toString(mActualHeadTrackingMode).c_str());
+                        ToString(mActualHeadTrackingMode).c_str());
 
     base::StringAppendF(&ss, "%smSpatializationModes: [", prefixSpace.c_str());
     for (auto& mode : mSpatializationModes) {
-        base::StringAppendF(&ss, " %s", media::toString(mode).c_str());
+        base::StringAppendF(&ss, " %s", ToString(mode).c_str());
     }
     ss += "]\n";
 
diff --git a/services/audiopolicy/service/Spatializer.h b/services/audiopolicy/service/Spatializer.h
index 0d4d3f6..4ef07ce 100644
--- a/services/audiopolicy/service/Spatializer.h
+++ b/services/audiopolicy/service/Spatializer.h
@@ -20,10 +20,9 @@
 #include <android-base/stringprintf.h>
 #include <android/media/BnEffect.h>
 #include <android/media/BnSpatializer.h>
-#include <android/media/SpatializationLevel.h>
-#include <android/media/SpatializationMode.h>
-#include <android/media/SpatializerHeadTrackingMode.h>
 #include <android/media/audio/common/AudioLatencyMode.h>
+#include <android/media/audio/common/HeadTracking.h>
+#include <android/media/audio/common/Spatialization.h>
 #include <audio_utils/SimpleLog.h>
 #include <math.h>
 #include <media/AudioEffect.h>
@@ -106,16 +105,17 @@
 
     /** ISpatializer, see ISpatializer.aidl */
     binder::Status release() override;
-    binder::Status getSupportedLevels(std::vector<media::SpatializationLevel>* levels) override;
-    binder::Status setLevel(media::SpatializationLevel level) override;
-    binder::Status getLevel(media::SpatializationLevel *level) override;
+    binder::Status getSupportedLevels(
+            std::vector<media::audio::common::Spatialization::Level>* levels) override;
+    binder::Status setLevel(media::audio::common::Spatialization::Level level) override;
+    binder::Status getLevel(media::audio::common::Spatialization::Level *level) override;
     binder::Status isHeadTrackingSupported(bool *supports);
     binder::Status getSupportedHeadTrackingModes(
-            std::vector<media::SpatializerHeadTrackingMode>* modes) override;
+            std::vector<media::audio::common::HeadTracking::Mode>* modes) override;
     binder::Status setDesiredHeadTrackingMode(
-            media::SpatializerHeadTrackingMode mode) override;
+            media::audio::common::HeadTracking::Mode mode) override;
     binder::Status getActualHeadTrackingMode(
-            media::SpatializerHeadTrackingMode* mode) override;
+            media::audio::common::HeadTracking::Mode* mode) override;
     binder::Status recenterHeadTracker() override;
     binder::Status setGlobalTransform(const std::vector<float>& screenToStage) override;
     binder::Status setHeadSensor(int sensorHandle) override;
@@ -123,7 +123,8 @@
     binder::Status setDisplayOrientation(float physicalToLogicalAngle) override;
     binder::Status setHingeAngle(float hingeAngle) override;
     binder::Status setFoldState(bool folded) override;
-    binder::Status getSupportedModes(std::vector<media::SpatializationMode>* modes) override;
+    binder::Status getSupportedModes(
+            std::vector<media::audio::common::Spatialization::Mode>* modes) override;
     binder::Status registerHeadTrackingCallback(
         const sp<media::ISpatializerHeadTrackingCallback>& callback) override;
     binder::Status setParameter(int key, const std::vector<unsigned char>& value) override;
@@ -145,7 +146,10 @@
     status_t loadEngineConfiguration(sp<EffectHalInterface> effect);
 
     /** Level getter for use by local classes. */
-    media::SpatializationLevel getLevel() const { std::lock_guard lock(mLock); return mLevel; }
+    media::audio::common::Spatialization::Level getLevel() const {
+        std::lock_guard lock(mLock);
+        return mLevel;
+    }
 
     /** Called by audio policy service when the special output mixer dedicated to spatialization
      * is opened and the spatializer engine must be created.
@@ -360,7 +364,8 @@
     sp<media::ISpatializerHeadTrackingCallback> mHeadTrackingCallback GUARDED_BY(mLock);
 
     /** Requested spatialization level */
-    media::SpatializationLevel mLevel GUARDED_BY(mLock) = media::SpatializationLevel::NONE;
+    media::audio::common::Spatialization::Level mLevel GUARDED_BY(mLock) =
+            media::audio::common::Spatialization::Level::NONE;
 
     /** Control logic for head-tracking, etc. */
     std::shared_ptr<SpatializerPoseController> mPoseController GUARDED_BY(mLock);
@@ -370,8 +375,8 @@
             = media::HeadTrackingMode::STATIC;
 
     /** Last-reported actual head-tracking mode. */
-    media::SpatializerHeadTrackingMode mActualHeadTrackingMode GUARDED_BY(mLock)
-            = media::SpatializerHeadTrackingMode::DISABLED;
+    media::audio::common::HeadTracking::Mode mActualHeadTrackingMode GUARDED_BY(mLock)
+            = media::audio::common::HeadTracking::Mode::DISABLED;
 
     /** Selected Head pose sensor */
     int32_t mHeadSensor GUARDED_BY(mLock) = SpatializerPoseController::INVALID_SENSOR;
@@ -388,9 +393,9 @@
     /** Last hinge angle */
     float mHingeAngle GUARDED_BY(mLock) = 0.f;  // foldable: 0.f is closed, M_PI flat open.
 
-    std::vector<media::SpatializationLevel> mLevels;
-    std::vector<media::SpatializerHeadTrackingMode> mHeadTrackingModes;
-    std::vector<media::SpatializationMode> mSpatializationModes;
+    std::vector<media::audio::common::Spatialization::Level> mLevels;
+    std::vector<media::audio::common::HeadTracking::Mode> mHeadTrackingModes;
+    std::vector<media::audio::common::Spatialization::Mode> mSpatializationModes;
     std::vector<audio_channel_mask_t> mChannelMasks;
     bool mSupportsHeadTracking;