diff --git a/soundtrigger/2.0/vts/functional/VtsHalSoundtriggerV2_0TargetTest.cpp b/soundtrigger/2.0/vts/functional/VtsHalSoundtriggerV2_0TargetTest.cpp
index 97956c5..59ac13e 100644
--- a/soundtrigger/2.0/vts/functional/VtsHalSoundtriggerV2_0TargetTest.cpp
+++ b/soundtrigger/2.0/vts/functional/VtsHalSoundtriggerV2_0TargetTest.cpp
@@ -30,6 +30,7 @@
 #include <android/hardware/soundtrigger/2.0/types.h>
 
 #include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
 
 #define SHORT_TIMEOUT_PERIOD (1)
 
@@ -85,12 +86,27 @@
   int mCount;
 };
 
+// Test environment for SoundTrigger HIDL HAL.
+class SoundTriggerHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static SoundTriggerHidlEnvironment* Instance() {
+        static SoundTriggerHidlEnvironment* instance = new SoundTriggerHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<ISoundTriggerHw>(); }
+
+   private:
+    SoundTriggerHidlEnvironment() {}
+};
+
 // The main test class for Sound Trigger HIDL HAL.
 class SoundTriggerHidlTest : public ::testing::VtsHalHidlTargetTestBase {
  public:
   virtual void SetUp() override {
-      mSoundTriggerHal =
-          ::testing::VtsHalHidlTargetTestBase::getService<ISoundTriggerHw>();
+      mSoundTriggerHal = ::testing::VtsHalHidlTargetTestBase::getService<ISoundTriggerHw>(
+          SoundTriggerHidlEnvironment::Instance()->getServiceName<ISoundTriggerHw>());
       ASSERT_NE(nullptr, mSoundTriggerHal.get());
       mCallback = new SoundTriggerHwCallback(*this);
       ASSERT_NE(nullptr, mCallback.get());
@@ -142,15 +158,6 @@
   sp<SoundTriggerHwCallback> mCallback;
 };
 
-// A class for test environment setup (kept since this file is a template).
-class SoundTriggerHidlEnvironment : public ::testing::Environment {
- public:
-  virtual void SetUp() {}
-  virtual void TearDown() {}
-
- private:
-};
-
 /**
  * Test ISoundTriggerHw::getProperties() method
  *
@@ -318,11 +325,11 @@
     EXPECT_TRUE(hidlReturn == 0 || hidlReturn == -ENOSYS);
 }
 
-
 int main(int argc, char** argv) {
-  ::testing::AddGlobalTestEnvironment(new SoundTriggerHidlEnvironment);
-  ::testing::InitGoogleTest(&argc, argv);
-  int status = RUN_ALL_TESTS();
-  ALOGI("Test result = %d", status);
-  return status;
+    ::testing::AddGlobalTestEnvironment(SoundTriggerHidlEnvironment::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    SoundTriggerHidlEnvironment::Instance()->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    ALOGI("Test result = %d", status);
+    return status;
 }
diff --git a/soundtrigger/2.1/vts/functional/VtsHalSoundtriggerV2_1TargetTest.cpp b/soundtrigger/2.1/vts/functional/VtsHalSoundtriggerV2_1TargetTest.cpp
index fdd5f0d..0a2eeac 100644
--- a/soundtrigger/2.1/vts/functional/VtsHalSoundtriggerV2_1TargetTest.cpp
+++ b/soundtrigger/2.1/vts/functional/VtsHalSoundtriggerV2_1TargetTest.cpp
@@ -33,6 +33,7 @@
 #include <hidlmemory/mapping.h>
 
 #include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
 
 #define SHORT_TIMEOUT_PERIOD (1)
 
@@ -93,11 +94,27 @@
     int mCount;
 };
 
+// Test environment for SoundTrigger HIDL HAL.
+class SoundTriggerHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static SoundTriggerHidlEnvironment* Instance() {
+        static SoundTriggerHidlEnvironment* instance = new SoundTriggerHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<ISoundTriggerHw>(); }
+
+   private:
+    SoundTriggerHidlEnvironment() {}
+};
+
 // The main test class for Sound Trigger HIDL HAL.
 class SoundTriggerHidlTest : public ::testing::VtsHalHidlTargetTestBase {
    public:
     virtual void SetUp() override {
-        mSoundTriggerHal = ::testing::VtsHalHidlTargetTestBase::getService<ISoundTriggerHw>();
+        mSoundTriggerHal = ::testing::VtsHalHidlTargetTestBase::getService<ISoundTriggerHw>(
+            SoundTriggerHidlEnvironment::Instance()->getServiceName<ISoundTriggerHw>());
         ASSERT_NE(nullptr, mSoundTriggerHal.get());
         mCallback = new SoundTriggerHwCallback(*this);
         ASSERT_NE(nullptr, mCallback.get());
@@ -480,3 +497,12 @@
     EXPECT_TRUE(hidlReturn.isOk());
     EXPECT_TRUE(hidlReturn == 0 || hidlReturn == -ENOSYS);
 }
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(SoundTriggerHidlEnvironment::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    SoundTriggerHidlEnvironment::Instance()->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    ALOGI("Test result = %d", status);
+    return status;
+}