diff --git a/audio/aidl/default/include/effect-impl/EffectImpl.h b/audio/aidl/default/include/effect-impl/EffectImpl.h
index f5e2aec..e7d081f 100644
--- a/audio/aidl/default/include/effect-impl/EffectImpl.h
+++ b/audio/aidl/default/include/effect-impl/EffectImpl.h
@@ -28,6 +28,9 @@
 #include "effect-impl/EffectThread.h"
 #include "effect-impl/EffectTypes.h"
 
+extern "C" binder_exception_t destroyEffect(
+        const std::shared_ptr<aidl::android::hardware::audio::effect::IEffect>& instanceSp);
+
 namespace aidl::android::hardware::audio::effect {
 
 class EffectImpl : public BnEffect, public EffectThread {
diff --git a/audio/aidl/default/include/effect-impl/EffectTypes.h b/audio/aidl/default/include/effect-impl/EffectTypes.h
index fc6a01d..58c8672 100644
--- a/audio/aidl/default/include/effect-impl/EffectTypes.h
+++ b/audio/aidl/default/include/effect-impl/EffectTypes.h
@@ -26,10 +26,14 @@
         std::shared_ptr<aidl::android::hardware::audio::effect::IEffect>*);
 typedef binder_exception_t (*EffectDestroyFunctor)(
         const std::shared_ptr<aidl::android::hardware::audio::effect::IEffect>&);
+typedef binder_exception_t (*EffectQueryFunctor)(
+        const ::aidl::android::media::audio::common::AudioUuid*,
+        aidl::android::hardware::audio::effect::Descriptor*);
 
 struct effect_dl_interface_s {
     EffectCreateFunctor createEffectFunc;
     EffectDestroyFunctor destroyEffectFunc;
+    EffectQueryFunctor queryEffectFunc;
 };
 
 namespace aidl::android::hardware::audio::effect {
@@ -102,6 +106,15 @@
         }                                                                                        \
     } while (0)
 
+#define RETURN_IF_BINDER_EXCEPTION(functor)                                 \
+    {                                                                       \
+        binder_exception_t exception = functor;                             \
+        if (EX_NONE != exception) {                                         \
+            LOG(ERROR) << #functor << ":  failed with error " << exception; \
+            return ndk::ScopedAStatus::fromExceptionCode(exception);        \
+        }                                                                   \
+    }
+
 static inline bool stringToUuid(const char* str,
                                 ::aidl::android::media::audio::common::AudioUuid* uuid) {
     RETURN_VALUE_IF(!uuid || !str, false, "nullPtr");
diff --git a/audio/aidl/default/include/effectFactory-impl/EffectFactory.h b/audio/aidl/default/include/effectFactory-impl/EffectFactory.h
index 7edace0..5903276 100644
--- a/audio/aidl/default/include/effectFactory-impl/EffectFactory.h
+++ b/audio/aidl/default/include/effectFactory-impl/EffectFactory.h
@@ -20,6 +20,7 @@
 #include <map>
 #include <optional>
 #include <set>
+#include <tuple>
 #include <vector>
 
 #include <aidl/android/hardware/audio/effect/BnFactory.h>
@@ -37,14 +38,14 @@
      * @param in_type Type UUID.
      * @param in_instance Instance UUID.
      * @param in_proxy Proxy UUID.
-     * @param out_descriptor List of identities .
+     * @param out_descriptor List of Descriptors.
      * @return ndk::ScopedAStatus
      */
     ndk::ScopedAStatus queryEffects(
             const std::optional<::aidl::android::media::audio::common::AudioUuid>& in_type,
             const std::optional<::aidl::android::media::audio::common::AudioUuid>& in_instance,
             const std::optional<::aidl::android::media::audio::common::AudioUuid>& in_proxy,
-            std::vector<Descriptor::Identity>* out_descriptor) override;
+            std::vector<Descriptor>* out_descriptor) override;
 
     /**
      * @brief Query list of defined processing, with the optional filter by AudioStreamType
@@ -82,12 +83,19 @@
     const EffectConfig mConfig;
     ~Factory();
     // Set of effect descriptors supported by the devices.
+    std::set<Descriptor> mDescSet;
     std::set<Descriptor::Identity> mIdentitySet;
 
-    std::map<aidl::android::media::audio::common::AudioUuid /* implementationUUID */,
-             std::pair<std::unique_ptr<void, std::function<void(void*)>> /* dlHandle */,
-                       std::unique_ptr<struct effect_dl_interface_s>>>
-            mEffectLibMap;
+    static constexpr int kMapEntryHandleIndex = 0;
+    static constexpr int kMapEntryInterfaceIndex = 1;
+    static constexpr int kMapEntryLibNameIndex = 2;
+    typedef std::tuple<std::unique_ptr<void, std::function<void(void*)>> /* dlHandle */,
+                       std::unique_ptr<struct effect_dl_interface_s> /* interfaces */,
+                       std::string /* library name */>
+            DlEntry;
+
+    std::map<aidl::android::media::audio::common::AudioUuid /* implUUID */, DlEntry> mEffectLibMap;
+
     std::map<std::weak_ptr<IEffect>, aidl::android::media::audio::common::AudioUuid,
              std::owner_less<>>
             mEffectUuidMap;
@@ -101,6 +109,8 @@
             const ::aidl::android::media::audio::common::AudioUuid& typeUuid,
             const std::optional<::aidl::android::media::audio::common::AudioUuid> proxyUuid);
     void loadEffectLibs();
+    /* Get effect_dl_interface_s from library handle */
+    void getDlSyms(DlEntry& entry);
 };
 
 }  // namespace aidl::android::hardware::audio::effect