diff --git a/audio/effect/all-versions/default/Android.bp b/audio/effect/all-versions/default/Android.bp
index a0cd612..99b1120 100644
--- a/audio/effect/all-versions/default/Android.bp
+++ b/audio/effect/all-versions/default/Android.bp
@@ -8,7 +8,6 @@
         "AudioBufferManager.cpp",
         "AutomaticGainControlEffect.cpp",
         "BassBoostEffect.cpp",
-        "Conversions.cpp",
         "DownmixEffect.cpp",
         "Effect.cpp",
         "EffectsFactory.cpp",
@@ -51,6 +50,7 @@
         "android.hardware.audio.common@2.0",
         "android.hardware.audio.common@2.0-util",
         "android.hardware.audio.effect@2.0",
+        "android.hardware.audio.effect@2.0-util",
     ],
     cflags: [
         "-DMAJOR_VERSION=2",
@@ -66,6 +66,7 @@
         "android.hardware.audio.common@4.0",
         "android.hardware.audio.common@4.0-util",
         "android.hardware.audio.effect@4.0",
+        "android.hardware.audio.effect@4.0-util",
     ],
     cflags: [
         "-DMAJOR_VERSION=4",
@@ -81,6 +82,7 @@
         "android.hardware.audio.common@5.0",
         "android.hardware.audio.common@5.0-util",
         "android.hardware.audio.effect@5.0",
+        "android.hardware.audio.effect@5.0-util",
     ],
     cflags: [
         "-DMAJOR_VERSION=5",
@@ -96,6 +98,7 @@
         "android.hardware.audio.common@6.0",
         "android.hardware.audio.common@6.0-util",
         "android.hardware.audio.effect@6.0",
+        "android.hardware.audio.effect@6.0-util",
     ],
     cflags: [
         "-DMAJOR_VERSION=6",
@@ -111,6 +114,7 @@
         "android.hardware.audio.common@7.0",
         "android.hardware.audio.common@7.0-util",
         "android.hardware.audio.effect@7.0",
+        "android.hardware.audio.effect@7.0-util",
     ],
     cflags: [
         "-DMAJOR_VERSION=7",
diff --git a/audio/effect/all-versions/default/Conversions.cpp b/audio/effect/all-versions/default/Conversions.cpp
deleted file mode 100644
index 0cc8767..0000000
--- a/audio/effect/all-versions/default/Conversions.cpp
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Copyright (C) 2018 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.
- */
-
-#include "Conversions.h"
-#include "UuidUtils.h"
-
-#include <memory.h>
-#include <stdio.h>
-
-#include <common/all-versions/VersionUtils.h>
-
-using ::android::hardware::audio::common::utils::EnumBitfield;
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace CPP_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::common::CPP_VERSION::implementation::UuidUtils;
-
-void effectDescriptorFromHal(const effect_descriptor_t& halDescriptor,
-                             EffectDescriptor* descriptor) {
-    UuidUtils::uuidFromHal(halDescriptor.type, &descriptor->type);
-    UuidUtils::uuidFromHal(halDescriptor.uuid, &descriptor->uuid);
-    descriptor->flags = EnumBitfield<EffectFlags>(halDescriptor.flags);
-    descriptor->cpuLoad = halDescriptor.cpuLoad;
-    descriptor->memoryUsage = halDescriptor.memoryUsage;
-    memcpy(descriptor->name.data(), halDescriptor.name, descriptor->name.size());
-    memcpy(descriptor->implementor.data(), halDescriptor.implementor,
-           descriptor->implementor.size());
-}
-
-std::string uuidToString(const effect_uuid_t& halUuid) {
-    char str[64];
-    snprintf(str, sizeof(str), "%08x-%04x-%04x-%04x-%02x%02x%02x%02x%02x%02x", halUuid.timeLow,
-             halUuid.timeMid, halUuid.timeHiAndVersion, halUuid.clockSeq, halUuid.node[0],
-             halUuid.node[1], halUuid.node[2], halUuid.node[3], halUuid.node[4], halUuid.node[5]);
-    return str;
-}
-
-}  // namespace implementation
-}  // namespace CPP_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
diff --git a/audio/effect/all-versions/default/Conversions.h b/audio/effect/all-versions/default/Conversions.h
deleted file mode 100644
index 75aab24..0000000
--- a/audio/effect/all-versions/default/Conversions.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (C) 2018 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.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_EFFECT_CONVERSIONS_H_
-#define ANDROID_HARDWARE_AUDIO_EFFECT_CONVERSIONS_H_
-
-#include PATH(android/hardware/audio/effect/FILE_VERSION/types.h)
-
-#include <string>
-
-#include <system/audio_effect.h>
-
-namespace android {
-namespace hardware {
-namespace audio {
-namespace effect {
-namespace CPP_VERSION {
-namespace implementation {
-
-using ::android::hardware::audio::effect::CPP_VERSION::EffectDescriptor;
-
-void effectDescriptorFromHal(const effect_descriptor_t& halDescriptor,
-                             EffectDescriptor* descriptor);
-std::string uuidToString(const effect_uuid_t& halUuid);
-
-}  // namespace implementation
-}  // namespace CPP_VERSION
-}  // namespace effect
-}  // namespace audio
-}  // namespace hardware
-}  // namespace android
-
-#endif  // ANDROID_HARDWARE_AUDIO_EFFECT_CONVERSIONS_H_
diff --git a/audio/effect/all-versions/default/Effect.cpp b/audio/effect/all-versions/default/Effect.cpp
index 58f1779..ccfc6b2 100644
--- a/audio/effect/all-versions/default/Effect.cpp
+++ b/audio/effect/all-versions/default/Effect.cpp
@@ -19,7 +19,6 @@
 #define LOG_TAG "EffectHAL"
 #define ATRACE_TAG ATRACE_TAG_AUDIO
 
-#include "Conversions.h"
 #include "Effect.h"
 #include "common/all-versions/default/EffectMap.h"
 
@@ -30,6 +29,7 @@
 #include <HidlUtils.h>
 #include <android/log.h>
 #include <media/EffectsFactoryApi.h>
+#include <util/EffectUtils.h>
 #include <utils/Trace.h>
 
 #include "VersionUtils.h"
@@ -202,34 +202,6 @@
     halConfig->aux_channels = static_cast<audio_channel_mask_t>(config.auxChannels);
 }
 
-void Effect::effectBufferConfigFromHal(const buffer_config_t& halConfig,
-                                       EffectBufferConfig* config) {
-    config->buffer.id = 0;
-    config->buffer.frameCount = 0;
-    config->samplingRateHz = halConfig.samplingRate;
-    config->channels = AudioChannelBitfield(halConfig.channels);
-    config->format = AudioFormat(halConfig.format);
-    config->accessMode = EffectBufferAccess(halConfig.accessMode);
-    config->mask = static_cast<decltype(config->mask)>(halConfig.mask);
-}
-
-// static
-void Effect::effectBufferConfigToHal(const EffectBufferConfig& config, buffer_config_t* halConfig) {
-    // Note: setting the buffers directly is considered obsolete. They need to be set
-    // using 'setProcessBuffers'.
-    halConfig->buffer.frameCount = 0;
-    halConfig->buffer.raw = NULL;
-    halConfig->samplingRate = config.samplingRateHz;
-    halConfig->channels = static_cast<uint32_t>(config.channels);
-    // Note: The framework code does not use BP.
-    halConfig->bufferProvider.cookie = NULL;
-    halConfig->bufferProvider.getBuffer = NULL;
-    halConfig->bufferProvider.releaseBuffer = NULL;
-    halConfig->format = static_cast<uint8_t>(config.format);
-    halConfig->accessMode = static_cast<uint8_t>(config.accessMode);
-    halConfig->mask = static_cast<uint8_t>(config.mask);
-}
-
 #else  // MAJOR_VERSION <= 6
 
 void Effect::effectAuxChannelsConfigFromHal(const channel_config_t& halConfig,
@@ -247,68 +219,8 @@
     (void)HidlUtils::audioChannelMaskToHal(config.auxChannels, &halConfig->aux_channels);
 }
 
-void Effect::effectBufferConfigFromHal(const buffer_config_t& halConfig,
-                                       EffectBufferConfig* config) {
-    config->buffer.unspecified();
-    audio_config_base_t halConfigBase = {halConfig.samplingRate,
-                                         static_cast<audio_channel_mask_t>(halConfig.channels),
-                                         static_cast<audio_format_t>(halConfig.format)};
-    (void)HidlUtils::audioConfigBaseOptionalFromHal(
-            halConfigBase, mIsInput, halConfig.mask & EFFECT_CONFIG_FORMAT,
-            halConfig.mask & EFFECT_CONFIG_SMP_RATE, halConfig.mask & EFFECT_CONFIG_CHANNELS,
-            &config->base);
-    if (halConfig.mask & EFFECT_CONFIG_ACC_MODE) {
-        config->accessMode.value(EffectBufferAccess(halConfig.accessMode));
-    }
-}
-
-// static
-void Effect::effectBufferConfigToHal(const EffectBufferConfig& config, buffer_config_t* halConfig) {
-    // Note: setting the buffers directly is considered obsolete. They need to be set
-    // using 'setProcessBuffers'.
-    halConfig->buffer.frameCount = 0;
-    halConfig->buffer.raw = nullptr;
-    audio_config_base_t halConfigBase = AUDIO_CONFIG_BASE_INITIALIZER;
-    bool formatSpecified = false, sRateSpecified = false, channelMaskSpecified = false;
-    (void)HidlUtils::audioConfigBaseOptionalToHal(config.base, &halConfigBase, &formatSpecified,
-                                                  &sRateSpecified, &channelMaskSpecified);
-    halConfig->mask = 0;
-    if (sRateSpecified) {
-        halConfig->mask |= EFFECT_CONFIG_SMP_RATE;
-        halConfig->samplingRate = halConfigBase.sample_rate;
-    }
-    if (channelMaskSpecified) {
-        halConfig->mask |= EFFECT_CONFIG_CHANNELS;
-        halConfig->channels = halConfigBase.channel_mask;
-    }
-    if (formatSpecified) {
-        halConfig->mask |= EFFECT_CONFIG_FORMAT;
-        halConfig->format = halConfigBase.format;
-    }
-    // Note: The framework code does not use BP.
-    halConfig->bufferProvider.cookie = nullptr;
-    halConfig->bufferProvider.getBuffer = nullptr;
-    halConfig->bufferProvider.releaseBuffer = nullptr;
-    if (config.accessMode.getDiscriminator() ==
-        EffectBufferConfig::OptionalAccessMode::hidl_discriminator::value) {
-        halConfig->mask |= EFFECT_CONFIG_ACC_MODE;
-        halConfig->accessMode = static_cast<uint8_t>(config.accessMode.value());
-    }
-}
-
 #endif  // MAJOR_VERSION <= 6
 
-void Effect::effectConfigFromHal(const effect_config_t& halConfig, EffectConfig* config) {
-    effectBufferConfigFromHal(halConfig.inputCfg, &config->inputCfg);
-    effectBufferConfigFromHal(halConfig.outputCfg, &config->outputCfg);
-}
-
-// static
-void Effect::effectConfigToHal(const EffectConfig& config, effect_config_t* halConfig) {
-    effectBufferConfigToHal(config.inputCfg, &halConfig->inputCfg);
-    effectBufferConfigToHal(config.outputCfg, &halConfig->outputCfg);
-}
-
 // static
 void Effect::effectOffloadParamToHal(const EffectOffloadParameter& offload,
                                      effect_offload_param_t* halOffload) {
@@ -373,7 +285,7 @@
         (*mHandle)->command(mHandle, commandCode, 0, NULL, &halResultSize, &halConfig);
     EffectConfig config;
     if (status == OK) {
-        effectConfigFromHal(halConfig, &config);
+        status = EffectUtils::effectConfigFromHal(halConfig, mIsInput, &config);
     }
     cb(analyzeCommandStatus(commandName, sContextCallToCommand, status), config);
 }
@@ -538,7 +450,7 @@
                              const sp<IEffectBufferProviderCallback>& inputBufferProvider,
                              const sp<IEffectBufferProviderCallback>& outputBufferProvider) {
     effect_config_t halConfig;
-    effectConfigToHal(config, &halConfig);
+    EffectUtils::effectConfigToHal(config, &halConfig);
     if (inputBufferProvider != 0) {
         LOG_FATAL("Using input buffer provider is not supported");
     }
@@ -733,7 +645,7 @@
     status_t status = (*mHandle)->get_descriptor(mHandle, &halDescriptor);
     EffectDescriptor descriptor;
     if (status == OK) {
-        effectDescriptorFromHal(halDescriptor, &descriptor);
+        status = EffectUtils::effectDescriptorFromHal(halDescriptor, &descriptor);
     }
     _hidl_cb(analyzeStatus("get_descriptor", "", sContextCallFunction, status), descriptor);
     return Void();
diff --git a/audio/effect/all-versions/default/Effect.h b/audio/effect/all-versions/default/Effect.h
index 9aa47ea..d5218f7 100644
--- a/audio/effect/all-versions/default/Effect.h
+++ b/audio/effect/all-versions/default/Effect.h
@@ -203,11 +203,6 @@
                                         EffectAuxChannelsConfig* config);
     static void effectAuxChannelsConfigToHal(const EffectAuxChannelsConfig& config,
                                              channel_config_t* halConfig);
-    void effectBufferConfigFromHal(const buffer_config_t& halConfig, EffectBufferConfig* config);
-    static void effectBufferConfigToHal(const EffectBufferConfig& config,
-                                        buffer_config_t* halConfig);
-    void effectConfigFromHal(const effect_config_t& halConfig, EffectConfig* config);
-    static void effectConfigToHal(const EffectConfig& config, effect_config_t* halConfig);
     static void effectOffloadParamToHal(const EffectOffloadParameter& offload,
                                         effect_offload_param_t* halOffload);
     static std::vector<uint8_t> parameterToHal(uint32_t paramSize, const void* paramData,
diff --git a/audio/effect/all-versions/default/EffectsFactory.cpp b/audio/effect/all-versions/default/EffectsFactory.cpp
index 1ea990b..eb1cb49 100644
--- a/audio/effect/all-versions/default/EffectsFactory.cpp
+++ b/audio/effect/all-versions/default/EffectsFactory.cpp
@@ -19,7 +19,6 @@
 #include "AcousticEchoCancelerEffect.h"
 #include "AutomaticGainControlEffect.h"
 #include "BassBoostEffect.h"
-#include "Conversions.h"
 #include "DownmixEffect.h"
 #include "Effect.h"
 #include "EnvironmentalReverbEffect.h"
@@ -27,11 +26,11 @@
 #include "LoudnessEnhancerEffect.h"
 #include "NoiseSuppressionEffect.h"
 #include "PresetReverbEffect.h"
-#include "UuidUtils.h"
 #include "VirtualizerEffect.h"
 #include "VisualizerEffect.h"
 #include "common/all-versions/default/EffectMap.h"
 
+#include <UuidUtils.h>
 #include <android/log.h>
 #include <media/EffectsFactoryApi.h>
 #include <system/audio_effects/effect_aec.h>
@@ -45,6 +44,7 @@
 #include <system/audio_effects/effect_presetreverb.h>
 #include <system/audio_effects/effect_virtualizer.h>
 #include <system/audio_effects/effect_visualizer.h>
+#include <util/EffectUtils.h>
 
 namespace android {
 namespace hardware {
@@ -107,7 +107,7 @@
         effect_descriptor_t halDescriptor;
         status = EffectQueryEffect(i, &halDescriptor);
         if (status == OK) {
-            effectDescriptorFromHal(halDescriptor, &result[i]);
+            EffectUtils::effectDescriptorFromHal(halDescriptor, &result[i]);
         } else {
             ALOGE("Error querying effect at position %d / %d: %s", i, numEffects,
                   strerror(-status));
@@ -141,11 +141,11 @@
     effect_descriptor_t halDescriptor;
     status_t status = EffectGetDescriptor(&halUuid, &halDescriptor);
     EffectDescriptor descriptor;
-    effectDescriptorFromHal(halDescriptor, &descriptor);
+    EffectUtils::effectDescriptorFromHal(halDescriptor, &descriptor);
     Result retval(Result::OK);
     if (status != OK) {
-        ALOGE("Error querying effect descriptor for %s: %s", uuidToString(halUuid).c_str(),
-              strerror(-status));
+        ALOGE("Error querying effect descriptor for %s: %s",
+              UuidUtils::uuidToString(halUuid).c_str(), strerror(-status));
         if (status == -ENOENT) {
             retval = Result::INVALID_ARGUMENTS;
         } else {
@@ -191,13 +191,14 @@
             effect = dispatchEffectInstanceCreation(halDescriptor, handle);
             effectId = EffectMap::getInstance().add(handle);
         } else {
-            ALOGE("Error querying effect descriptor for %s: %s", uuidToString(halUuid).c_str(),
-                  strerror(-status));
+            ALOGE("Error querying effect descriptor for %s: %s",
+                  UuidUtils::uuidToString(halUuid).c_str(), strerror(-status));
             EffectRelease(handle);
         }
     }
     if (status != OK) {
-        ALOGE("Error creating effect %s: %s", uuidToString(halUuid).c_str(), strerror(-status));
+        ALOGE("Error creating effect %s: %s", UuidUtils::uuidToString(halUuid).c_str(),
+              strerror(-status));
         if (status == -ENOENT) {
             retval = Result::INVALID_ARGUMENTS;
         } else {
diff --git a/audio/effect/all-versions/default/TEST_MAPPING b/audio/effect/all-versions/default/TEST_MAPPING
new file mode 100644
index 0000000..b66e4e4
--- /dev/null
+++ b/audio/effect/all-versions/default/TEST_MAPPING
@@ -0,0 +1,7 @@
+{
+  "presubmit": [
+    {
+      "name": "android.hardware.audio.effect@7.0-util_tests"
+    }
+  ]
+}
diff --git a/audio/effect/all-versions/default/util/Android.bp b/audio/effect/all-versions/default/util/Android.bp
new file mode 100644
index 0000000..5ba19d3
--- /dev/null
+++ b/audio/effect/all-versions/default/util/Android.bp
@@ -0,0 +1,136 @@
+cc_defaults {
+    name: "android.hardware.audio.effect-util_default",
+    defaults: ["hidl_defaults"],
+
+    vendor_available: true,
+
+    export_include_dirs: ["include"],
+
+    srcs: [
+        "EffectUtils.cpp",
+    ],
+
+    shared_libs: [
+        "liblog",
+        "libutils",
+        "libhidlbase",
+        "android.hardware.audio.common-util",
+    ],
+    export_shared_lib_headers: [
+        "android.hardware.audio.common-util",
+    ],
+
+    header_libs: [
+        "libaudio_system_headers",
+        "libhardware_headers",
+    ],
+}
+
+cc_library_shared {
+    name: "android.hardware.audio.effect@2.0-util",
+    defaults: ["android.hardware.audio.effect-util_default"],
+    shared_libs: [
+        "android.hardware.audio.common@2.0",
+        "android.hardware.audio.common@2.0-util",
+        "android.hardware.audio.effect@2.0",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=2",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+}
+
+cc_library_shared {
+    name: "android.hardware.audio.effect@4.0-util",
+    defaults: ["android.hardware.audio.effect-util_default"],
+    shared_libs: [
+        "android.hardware.audio.common@4.0",
+        "android.hardware.audio.common@4.0-util",
+        "android.hardware.audio.effect@4.0",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=4",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+}
+
+cc_library_shared {
+    name: "android.hardware.audio.effect@5.0-util",
+    defaults: ["android.hardware.audio.effect-util_default"],
+    shared_libs: [
+        "android.hardware.audio.common@5.0",
+        "android.hardware.audio.common@5.0-util",
+        "android.hardware.audio.effect@5.0",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=5",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+}
+
+cc_library_shared {
+    name: "android.hardware.audio.effect@6.0-util",
+    defaults: ["android.hardware.audio.effect-util_default"],
+    shared_libs: [
+        "android.hardware.audio.common@6.0",
+        "android.hardware.audio.common@6.0-util",
+        "android.hardware.audio.effect@6.0",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=6",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+}
+
+cc_library {
+    name: "android.hardware.audio.effect@7.0-util",
+    defaults: ["android.hardware.audio.effect-util_default"],
+    shared_libs: [
+        "android.hardware.audio.common@7.0",
+        "android.hardware.audio.common@7.0-util",
+        "android.hardware.audio.effect@7.0",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=7",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+}
+
+// Note: this isn't a VTS test, but rather a unit test
+// to verify correctness of conversion utilities.
+cc_test {
+    name: "android.hardware.audio.effect@7.0-util_tests",
+    defaults: ["android.hardware.audio.effect-util_default"],
+
+    srcs: ["tests/effectutils_tests.cpp"],
+
+    // Use static linking to allow running in presubmit on
+    // targets that don't have HAL V7.
+    static_libs: [
+        "android.hardware.audio.common@7.0",
+        "android.hardware.audio.common@7.0-enums",
+        "android.hardware.audio.common@7.0-util",
+        "android.hardware.audio.effect@7.0",
+        "android.hardware.audio.effect@7.0-util",
+    ],
+
+    shared_libs: [
+        "libbase",
+        "libxml2",
+    ],
+
+    cflags: [
+        "-Werror",
+        "-Wall",
+        "-DMAJOR_VERSION=7",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+
+    test_suites: ["device-tests"],
+}
diff --git a/audio/effect/all-versions/default/util/EffectUtils.cpp b/audio/effect/all-versions/default/util/EffectUtils.cpp
new file mode 100644
index 0000000..1c0419a
--- /dev/null
+++ b/audio/effect/all-versions/default/util/EffectUtils.cpp
@@ -0,0 +1,183 @@
+/*
+ * Copyright (C) 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.
+ */
+
+#include <memory.h>
+
+#include <HidlUtils.h>
+#include <UuidUtils.h>
+#include <common/all-versions/VersionUtils.h>
+
+#include "util/EffectUtils.h"
+
+using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
+using ::android::hardware::audio::common::CPP_VERSION::implementation::UuidUtils;
+using ::android::hardware::audio::common::utils::EnumBitfield;
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+
+#define CONVERT_CHECKED(expr, result)                   \
+    if (status_t status = (expr); status != NO_ERROR) { \
+        result = status;                                \
+    }
+
+#if MAJOR_VERSION <= 6
+
+status_t EffectUtils::effectBufferConfigFromHal(const buffer_config_t& halConfig, bool /*isInput*/,
+                                                EffectBufferConfig* config) {
+    config->buffer.id = 0;
+    config->buffer.frameCount = 0;
+    config->samplingRateHz = halConfig.samplingRate;
+    config->channels = EnumBitfield<AudioChannelMask>(halConfig.channels);
+    config->format = AudioFormat(halConfig.format);
+    config->accessMode = EffectBufferAccess(halConfig.accessMode);
+    config->mask = EnumBitfield<EffectConfigParameters>(halConfig.mask);
+    return NO_ERROR;
+}
+
+status_t EffectUtils::effectBufferConfigToHal(const EffectBufferConfig& config,
+                                              buffer_config_t* halConfig) {
+    // Note: setting the buffers directly is considered obsolete. They need to be set
+    // using 'setProcessBuffers'.
+    halConfig->buffer.frameCount = 0;
+    halConfig->buffer.raw = nullptr;
+    halConfig->samplingRate = config.samplingRateHz;
+    halConfig->channels = static_cast<uint32_t>(config.channels);
+    // Note: The framework code does not use BP.
+    halConfig->bufferProvider.cookie = nullptr;
+    halConfig->bufferProvider.getBuffer = nullptr;
+    halConfig->bufferProvider.releaseBuffer = nullptr;
+    halConfig->format = static_cast<uint8_t>(config.format);
+    halConfig->accessMode = static_cast<uint8_t>(config.accessMode);
+    halConfig->mask = static_cast<uint8_t>(config.mask);
+    return NO_ERROR;
+}
+
+#else
+
+status_t EffectUtils::effectBufferConfigFromHal(const buffer_config_t& halConfig, bool isInput,
+                                                EffectBufferConfig* config) {
+    status_t result = NO_ERROR;
+    config->buffer.unspecified();
+    audio_config_base_t halConfigBase = {halConfig.samplingRate,
+                                         static_cast<audio_channel_mask_t>(halConfig.channels),
+                                         static_cast<audio_format_t>(halConfig.format)};
+    CONVERT_CHECKED(HidlUtils::audioConfigBaseOptionalFromHal(
+                            halConfigBase, isInput, halConfig.mask & EFFECT_CONFIG_FORMAT,
+                            halConfig.mask & EFFECT_CONFIG_SMP_RATE,
+                            halConfig.mask & EFFECT_CONFIG_CHANNELS, &config->base),
+                    result);
+    if (halConfig.mask & EFFECT_CONFIG_ACC_MODE) {
+        config->accessMode.value(EffectBufferAccess(halConfig.accessMode));
+    }
+    return result;
+}
+
+status_t EffectUtils::effectBufferConfigToHal(const EffectBufferConfig& config,
+                                              buffer_config_t* halConfig) {
+    status_t result = NO_ERROR;
+    // Note: setting the buffers directly is considered obsolete. They need to be set
+    // using 'setProcessBuffers'.
+    halConfig->buffer.frameCount = 0;
+    halConfig->buffer.raw = nullptr;
+    audio_config_base_t halConfigBase = AUDIO_CONFIG_BASE_INITIALIZER;
+    bool formatSpecified = false, sRateSpecified = false, channelMaskSpecified = false;
+    CONVERT_CHECKED(
+            HidlUtils::audioConfigBaseOptionalToHal(config.base, &halConfigBase, &formatSpecified,
+                                                    &sRateSpecified, &channelMaskSpecified),
+            result);
+    halConfig->mask = 0;
+    if (sRateSpecified) {
+        halConfig->mask |= EFFECT_CONFIG_SMP_RATE;
+        halConfig->samplingRate = halConfigBase.sample_rate;
+    }
+    if (channelMaskSpecified) {
+        halConfig->mask |= EFFECT_CONFIG_CHANNELS;
+        halConfig->channels = halConfigBase.channel_mask;
+    }
+    if (formatSpecified) {
+        halConfig->mask |= EFFECT_CONFIG_FORMAT;
+        halConfig->format = halConfigBase.format;
+    }
+    // Note: The framework code does not use BP.
+    halConfig->bufferProvider.cookie = nullptr;
+    halConfig->bufferProvider.getBuffer = nullptr;
+    halConfig->bufferProvider.releaseBuffer = nullptr;
+    if (config.accessMode.getDiscriminator() ==
+        EffectBufferConfig::OptionalAccessMode::hidl_discriminator::value) {
+        halConfig->mask |= EFFECT_CONFIG_ACC_MODE;
+        halConfig->accessMode = static_cast<uint8_t>(config.accessMode.value());
+    }
+    return result;
+}
+
+#endif  // MAJOR_VERSION >= 6
+
+status_t EffectUtils::effectConfigFromHal(const effect_config_t& halConfig, bool isInput,
+                                          EffectConfig* config) {
+    status_t result = NO_ERROR;
+    CONVERT_CHECKED(effectBufferConfigFromHal(halConfig.inputCfg, isInput, &config->inputCfg),
+                    result);
+    CONVERT_CHECKED(effectBufferConfigFromHal(halConfig.outputCfg, isInput, &config->outputCfg),
+                    result);
+    return result;
+}
+
+status_t EffectUtils::effectConfigToHal(const EffectConfig& config, effect_config_t* halConfig) {
+    status_t result = NO_ERROR;
+    CONVERT_CHECKED(effectBufferConfigToHal(config.inputCfg, &halConfig->inputCfg), result);
+    CONVERT_CHECKED(effectBufferConfigToHal(config.outputCfg, &halConfig->outputCfg), result);
+    return result;
+}
+
+status_t EffectUtils::effectDescriptorFromHal(const effect_descriptor_t& halDescriptor,
+                                              EffectDescriptor* descriptor) {
+    UuidUtils::uuidFromHal(halDescriptor.type, &descriptor->type);
+    UuidUtils::uuidFromHal(halDescriptor.uuid, &descriptor->uuid);
+    descriptor->flags = EnumBitfield<EffectFlags>(halDescriptor.flags);
+    descriptor->cpuLoad = halDescriptor.cpuLoad;
+    descriptor->memoryUsage = halDescriptor.memoryUsage;
+    memcpy(descriptor->name.data(), halDescriptor.name, descriptor->name.size());
+    memcpy(descriptor->implementor.data(), halDescriptor.implementor,
+           descriptor->implementor.size());
+    return NO_ERROR;
+}
+
+status_t EffectUtils::effectDescriptorToHal(const EffectDescriptor& descriptor,
+                                            effect_descriptor_t* halDescriptor) {
+    UuidUtils::uuidToHal(descriptor.type, &halDescriptor->type);
+    UuidUtils::uuidToHal(descriptor.uuid, &halDescriptor->uuid);
+    halDescriptor->flags = static_cast<uint32_t>(descriptor.flags);
+    halDescriptor->cpuLoad = descriptor.cpuLoad;
+    halDescriptor->memoryUsage = descriptor.memoryUsage;
+    memcpy(halDescriptor->name, descriptor.name.data(), descriptor.name.size());
+    memcpy(halDescriptor->implementor, descriptor.implementor.data(),
+           descriptor.implementor.size());
+    return NO_ERROR;
+}
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/effect/all-versions/default/util/include/util/EffectUtils.h b/audio/effect/all-versions/default/util/include/util/EffectUtils.h
new file mode 100644
index 0000000..23963b4
--- /dev/null
+++ b/audio/effect/all-versions/default/util/include/util/EffectUtils.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 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.
+ */
+
+#pragma once
+
+// clang-format off
+#include PATH(android/hardware/audio/effect/FILE_VERSION/types.h)
+// clang-format on
+
+#include <system/audio_effect.h>
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+namespace implementation {
+
+using namespace ::android::hardware::audio::effect::CPP_VERSION;
+
+struct EffectUtils {
+    static status_t effectBufferConfigFromHal(const buffer_config_t& halConfig, bool isInput,
+                                              EffectBufferConfig* config);
+    static status_t effectBufferConfigToHal(const EffectBufferConfig& config,
+                                            buffer_config_t* halConfig);
+    static status_t effectConfigFromHal(const effect_config_t& halConfig, bool isInput,
+                                        EffectConfig* config);
+    static status_t effectConfigToHal(const EffectConfig& config, effect_config_t* halConfig);
+    static status_t effectDescriptorFromHal(const effect_descriptor_t& halDescriptor,
+                                            EffectDescriptor* descriptor);
+    static status_t effectDescriptorToHal(const EffectDescriptor& descriptor,
+                                          effect_descriptor_t* halDescriptor);
+};
+
+}  // namespace implementation
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
diff --git a/audio/effect/all-versions/default/util/tests/effectutils_tests.cpp b/audio/effect/all-versions/default/util/tests/effectutils_tests.cpp
new file mode 100644
index 0000000..7eb8cd2
--- /dev/null
+++ b/audio/effect/all-versions/default/util/tests/effectutils_tests.cpp
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 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.
+ */
+
+#include <string>
+
+#include <gtest/gtest.h>
+
+#define LOG_TAG "EffectUtils_Test"
+#include <log/log.h>
+
+#include <android_audio_policy_configuration_V7_0-enums.h>
+#include <system/audio_effect.h>
+#include <util/EffectUtils.h>
+#include <xsdc/XsdcSupport.h>
+
+using namespace android;
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using namespace ::android::hardware::audio::effect::CPP_VERSION;
+using ::android::hardware::audio::effect::CPP_VERSION::implementation::EffectUtils;
+namespace xsd {
+using namespace ::android::audio::policy::configuration::V7_0;
+}
+
+static constexpr audio_channel_mask_t kInvalidHalChannelMask = AUDIO_CHANNEL_INVALID;
+static constexpr audio_format_t kInvalidHalFormat = AUDIO_FORMAT_INVALID;
+
+// Not generated automatically because AudioBuffer contains
+// instances of hidl_memory which can't be compared properly
+// in general case due to presence of handles.
+//
+// However, in this particular case, handles must not present
+// thus comparison is possible.
+//
+// operator== must be defined in the same namespace as the structures.
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace CPP_VERSION {
+inline bool operator==(const AudioBuffer& lhs, const AudioBuffer& rhs) {
+    return lhs.id == rhs.id && lhs.frameCount == rhs.frameCount && lhs.data.handle() == nullptr &&
+           rhs.data.handle() == nullptr;
+}
+
+inline bool operator==(const EffectBufferConfig& lhs, const EffectBufferConfig& rhs) {
+    return lhs.buffer.getDiscriminator() == rhs.buffer.getDiscriminator() &&
+           (lhs.buffer.getDiscriminator() ==
+                    EffectBufferConfig::OptionalBuffer::hidl_discriminator::unspecified ||
+            lhs.buffer.buf() == rhs.buffer.buf()) &&
+           lhs.base == rhs.base && lhs.accessMode == rhs.accessMode;
+}
+
+inline bool operator==(const EffectConfig& lhs, const EffectConfig& rhs) {
+    return lhs.inputCfg == rhs.inputCfg && lhs.outputCfg == rhs.outputCfg;
+}
+}  // namespace CPP_VERSION
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+TEST(EffectUtils, ConvertInvalidBufferConfig) {
+    buffer_config_t halInvalid;
+    EffectBufferConfig invalidChannelMask;
+    invalidChannelMask.base.channelMask.value("random string");
+    EXPECT_EQ(BAD_VALUE, EffectUtils::effectBufferConfigToHal(invalidChannelMask, &halInvalid));
+    EffectBufferConfig invalidFormat;
+    invalidFormat.base.format.value("random string");
+    EXPECT_EQ(BAD_VALUE, EffectUtils::effectBufferConfigToHal(invalidFormat, &halInvalid));
+
+    buffer_config_t halInvalidChannelMask;
+    EffectBufferConfig invalid;
+    halInvalidChannelMask.channels = kInvalidHalChannelMask;
+    halInvalidChannelMask.mask = EFFECT_CONFIG_CHANNELS;
+    EXPECT_EQ(BAD_VALUE, EffectUtils::effectBufferConfigFromHal(halInvalidChannelMask,
+                                                                false /*isInput*/, &invalid));
+    EXPECT_EQ(BAD_VALUE, EffectUtils::effectBufferConfigFromHal(halInvalidChannelMask,
+                                                                true /*isInput*/, &invalid));
+    buffer_config_t halInvalidFormat;
+    halInvalidFormat.format = (uint8_t)kInvalidHalFormat;
+    halInvalidFormat.mask = EFFECT_CONFIG_FORMAT;
+    EXPECT_EQ(BAD_VALUE, EffectUtils::effectBufferConfigFromHal(halInvalidFormat, false /*isInput*/,
+                                                                &invalid));
+    EXPECT_EQ(BAD_VALUE,
+              EffectUtils::effectBufferConfigFromHal(halInvalidFormat, true /*isInput*/, &invalid));
+}
+
+TEST(EffectUtils, ConvertBufferConfig) {
+    EffectBufferConfig empty;
+    buffer_config_t halEmpty;
+    EXPECT_EQ(NO_ERROR, EffectUtils::effectBufferConfigToHal(empty, &halEmpty));
+    EffectBufferConfig emptyBackOut;
+    EXPECT_EQ(NO_ERROR,
+              EffectUtils::effectBufferConfigFromHal(halEmpty, false /*isInput*/, &emptyBackOut));
+    EXPECT_EQ(empty, emptyBackOut);
+    EffectBufferConfig emptyBackIn;
+    EXPECT_EQ(NO_ERROR,
+              EffectUtils::effectBufferConfigFromHal(halEmpty, true /*isInput*/, &emptyBackIn));
+    EXPECT_EQ(empty, emptyBackIn);
+
+    EffectBufferConfig chanMask;
+    chanMask.base.channelMask.value(toString(xsd::AudioChannelMask::AUDIO_CHANNEL_OUT_STEREO));
+    buffer_config_t halChanMask;
+    EXPECT_EQ(NO_ERROR, EffectUtils::effectBufferConfigToHal(chanMask, &halChanMask));
+    EffectBufferConfig chanMaskBack;
+    EXPECT_EQ(NO_ERROR, EffectUtils::effectBufferConfigFromHal(halChanMask, false /*isInput*/,
+                                                               &chanMaskBack));
+    EXPECT_EQ(chanMask, chanMaskBack);
+
+    EffectBufferConfig format;
+    format.base.format.value(toString(xsd::AudioFormat::AUDIO_FORMAT_PCM_16_BIT));
+    buffer_config_t halFormat;
+    EXPECT_EQ(NO_ERROR, EffectUtils::effectBufferConfigToHal(format, &halFormat));
+    EffectBufferConfig formatBackOut;
+    EXPECT_EQ(NO_ERROR,
+              EffectUtils::effectBufferConfigFromHal(halFormat, false /*isInput*/, &formatBackOut));
+    EXPECT_EQ(format, formatBackOut);
+    EffectBufferConfig formatBackIn;
+    EXPECT_EQ(NO_ERROR,
+              EffectUtils::effectBufferConfigFromHal(halFormat, true /*isInput*/, &formatBackIn));
+    EXPECT_EQ(format, formatBackIn);
+}
+
+TEST(EffectUtils, ConvertDescriptor) {
+    EffectDescriptor desc{};
+    effect_descriptor_t halDesc;
+    EXPECT_EQ(NO_ERROR, EffectUtils::effectDescriptorToHal(desc, &halDesc));
+    EffectDescriptor descBack;
+    EXPECT_EQ(NO_ERROR, EffectUtils::effectDescriptorFromHal(halDesc, &descBack));
+    EXPECT_EQ(desc, descBack);
+}