diff --git a/audio/aidl/default/Android.bp b/audio/aidl/default/Android.bp
index 5d63347..53ed908 100644
--- a/audio/aidl/default/Android.bp
+++ b/audio/aidl/default/Android.bp
@@ -68,6 +68,7 @@
         "libbase",
         "libbinder_ndk",
         "android.hardware.audio.effect-V1-ndk",
+        "libequalizer",
     ],
     cflags: [
         "-Wall",
@@ -80,7 +81,10 @@
 cc_library_static {
     name: "libaudioeffectserviceexampleimpl",
     defaults: ["aidlaudioeffectservice_defaults"],
-    export_include_dirs: ["include"],
+    export_include_dirs: [
+        "include",
+        "include/equalizer-impl/",
+    ],
     srcs: [
         "EffectFactory.cpp",
     ],
diff --git a/audio/aidl/default/EffectFactory.cpp b/audio/aidl/default/EffectFactory.cpp
index a31e23f..ea9d470 100644
--- a/audio/aidl/default/EffectFactory.cpp
+++ b/audio/aidl/default/EffectFactory.cpp
@@ -36,6 +36,8 @@
                {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}};
     id.uuid = EqualizerUUID;
     mIdentityList.push_back(id);
+    // TODO: Add visualizer with default implementation later
+#if 0
     id.type = {static_cast<int32_t>(0xd3467faa),
                0xacc7,
                0x4d34,
@@ -43,6 +45,7 @@
                {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}};
     id.uuid = VisualizerUUID;
     mIdentityList.push_back(id);
+#endif
 }
 
 ndk::ScopedAStatus Factory::queryEffects(const std::optional<AudioUuid>& in_type,
@@ -56,4 +59,28 @@
     return ndk::ScopedAStatus::ok();
 }
 
+ndk::ScopedAStatus Factory::createEffect(
+        const AudioUuid& in_impl_uuid,
+        std::shared_ptr<::aidl::android::hardware::audio::effect::IEffect>* _aidl_return) {
+    LOG(DEBUG) << __func__ << ": UUID " << in_impl_uuid.toString();
+    if (in_impl_uuid == EqualizerUUID) {
+        *_aidl_return = ndk::SharedRefBase::make<Equalizer>();
+    } else {
+        LOG(ERROR) << __func__ << ": UUID "
+                   << " not supported";
+        return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+    }
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Factory::destroyEffect(
+        const std::shared_ptr<::aidl::android::hardware::audio::effect::IEffect>& in_handle) {
+    if (in_handle) {
+        // TODO: b/245393900 need check the instance state with IEffect.getState before destroy.
+        return ndk::ScopedAStatus::ok();
+    } else {
+        return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+    }
+}
+
 }  // namespace aidl::android::hardware::audio::effect
diff --git a/audio/aidl/default/EffectMain.cpp b/audio/aidl/default/EffectMain.cpp
index 3b3c39b..b30f2e7 100644
--- a/audio/aidl/default/EffectMain.cpp
+++ b/audio/aidl/default/EffectMain.cpp
@@ -23,10 +23,11 @@
 int main() {
     // This is a debug implementation, always enable debug logging.
     android::base::SetMinimumLogSeverity(::android::base::DEBUG);
-    ABinderProcess_setThreadPoolMaxThreadCount(16);
+    ABinderProcess_setThreadPoolMaxThreadCount(1);
 
     auto effectFactory =
             ndk::SharedRefBase::make<aidl::android::hardware::audio::effect::Factory>();
+
     std::string serviceName = std::string() + effectFactory->descriptor + "/default";
     binder_status_t status =
             AServiceManager_addService(effectFactory->asBinder().get(), serviceName.c_str());
diff --git a/audio/aidl/default/android.hardware.audio.effect.service-aidl.example.rc b/audio/aidl/default/android.hardware.audio.effect.service-aidl.example.rc
index 01c0e6e..68bbf5b 100644
--- a/audio/aidl/default/android.hardware.audio.effect.service-aidl.example.rc
+++ b/audio/aidl/default/android.hardware.audio.effect.service-aidl.example.rc
@@ -2,7 +2,7 @@
     class hal
     user audioserver
     # media gid needed for /dev/fm (radio) and for /data/misc/media (tee)
-    group audio camera drmrpc inet media mediadrm net_bt net_bt_admin net_bw_acct wakelock context_hub
+    group audio media
     capabilities BLOCK_SUSPEND
     ioprio rt 4
     task_profiles ProcessCapacityHigh HighPerformance
diff --git a/audio/aidl/default/equalizer/Android.bp b/audio/aidl/default/equalizer/Android.bp
new file mode 100644
index 0000000..b842149
--- /dev/null
+++ b/audio/aidl/default/equalizer/Android.bp
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2022 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 {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "hardware_interfaces_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["hardware_interfaces_license"],
+}
+
+cc_library_shared {
+    name: "libequalizer",
+    vendor: true,
+    shared_libs: [
+        "libbase",
+        "libbinder_ndk",
+        "libstagefright_foundation",
+    ],
+    defaults: [
+        "latest_android_media_audio_common_types_ndk_shared",
+        "latest_android_hardware_audio_effect_ndk_shared",
+    ],
+    include_dirs: ["hardware/interfaces/audio/aidl/default/include/equalizer-impl"],
+    srcs: [
+        "Equalizer.cpp",
+    ],
+    visibility: [
+        "//hardware/interfaces/audio/aidl/default",
+    ],
+}
diff --git a/audio/aidl/default/equalizer/Equalizer.cpp b/audio/aidl/default/equalizer/Equalizer.cpp
new file mode 100644
index 0000000..dae3ab7
--- /dev/null
+++ b/audio/aidl/default/equalizer/Equalizer.cpp
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#define LOG_TAG "AHAL_Equalizer"
+#include <android-base/logging.h>
+
+#include "Equalizer.h"
+
+namespace aidl::android::hardware::audio::effect {
+
+Equalizer::Equalizer() {
+    // Implementation UUID
+    mDesc.common.id.uuid = {static_cast<int32_t>(0xce772f20),
+                            0x847d,
+                            0x11df,
+                            0xbb17,
+                            {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}};
+}
+
+ndk::ScopedAStatus Equalizer::open() {
+    LOG(DEBUG) << __func__;
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Equalizer::close() {
+    LOG(DEBUG) << __func__;
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Equalizer::getDescriptor(Descriptor* _aidl_return) {
+    LOG(DEBUG) << __func__ << "descriptor " << mDesc.toString();
+    *_aidl_return = mDesc;
+    return ndk::ScopedAStatus::ok();
+}
+
+}  // namespace aidl::android::hardware::audio::effect
diff --git a/audio/aidl/default/include/effectFactory-impl/EffectFactory.h b/audio/aidl/default/include/effectFactory-impl/EffectFactory.h
index 7670250..8da5525 100644
--- a/audio/aidl/default/include/effectFactory-impl/EffectFactory.h
+++ b/audio/aidl/default/include/effectFactory-impl/EffectFactory.h
@@ -40,6 +40,28 @@
             const std::optional<::aidl::android::media::audio::common::AudioUuid>& in_instance,
             std::vector<Descriptor::Identity>* out_descriptor) override;
 
+    /**
+     * @brief Create an effect instance for a certain implementation (identified by UUID).
+     *
+     * @param in_impl_uuid Effect implementation UUID.
+     * @param _aidl_return A pointer to created effect instance.
+     * @return ndk::ScopedAStatus
+     */
+    ndk::ScopedAStatus createEffect(
+            const ::aidl::android::media::audio::common::AudioUuid& in_impl_uuid,
+            std::shared_ptr<::aidl::android::hardware::audio::effect::IEffect>* _aidl_return)
+            override;
+
+    /**
+     * @brief Destroy an effect instance.
+     *
+     * @param in_handle Effect instance handle.
+     * @return ndk::ScopedAStatus
+     */
+    ndk::ScopedAStatus destroyEffect(
+            const std::shared_ptr<::aidl::android::hardware::audio::effect::IEffect>& in_handle)
+            override;
+
   private:
     // List of effect descriptors supported by the devices.
     std::vector<Descriptor::Identity> mIdentityList;
diff --git a/audio/aidl/default/include/equalizer-impl/Equalizer.h b/audio/aidl/default/include/equalizer-impl/Equalizer.h
index 86f8c3a..44b1d6d 100644
--- a/audio/aidl/default/include/equalizer-impl/Equalizer.h
+++ b/audio/aidl/default/include/equalizer-impl/Equalizer.h
@@ -16,16 +16,28 @@
 
 #pragma once
 
+#include <aidl/android/hardware/audio/effect/BnEffect.h>
 #include <cstdlib>
 
 namespace aidl::android::hardware::audio::effect {
 
 // Equalizer implementation UUID.
 static const ::aidl::android::media::audio::common::AudioUuid EqualizerUUID = {
-        static_cast<int32_t>(0xce772f20),
-        0x847d,
-        0x11df,
-        0xbb17,
+        static_cast<int32_t>(0x0bed4300),
+        0xddd6,
+        0x11db,
+        0x8f34,
         {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}};
 
-}  // namespace aidl::android::hardware::audio::effect
\ No newline at end of file
+class Equalizer : public BnEffect {
+  public:
+    Equalizer();
+    ndk::ScopedAStatus open() override;
+    ndk::ScopedAStatus close() override;
+    ndk::ScopedAStatus getDescriptor(Descriptor* _aidl_return) override;
+
+  private:
+    // Effect descriptor.
+    Descriptor mDesc = {.common.id.type = EqualizerUUID};
+};
+}  // namespace aidl::android::hardware::audio::effect