diff --git a/MRCP/ms-common/include/common.h b/MRCP/ms-common/include/common.h
index 88f6dfac..3ca175a2 100644
--- a/MRCP/ms-common/include/common.h
+++ b/MRCP/ms-common/include/common.h
@@ -2,21 +2,25 @@
 
 namespace Microsoft
 {
-    namespace speechlib
-    {
-        struct Common
-        {
-            static constexpr const char* SPEECH_SECTION = "speech_configs";
-            static constexpr const char* SPEECH_SDK_REGION = "speech_sdk_region";
-            static constexpr const char* SPEECH_SDK_KEY = "speech_sdk_key";
-            static constexpr const char* MAX_SYNTHESIZER = "max_synthesizer";
-            static constexpr const char* SR_USE_LOCAL_CONTAINER = "sr_use_local_container";
-            static constexpr const char* TTS_USE_LOCAL_CONTAINER = "tts_use_local_container";
-            static constexpr const char* SR_LOCAL_ENDPOINT = "sr_local_endpoint";
-            static constexpr const char* SR_LOCAL_KEY = "sr_local_key";
-            static constexpr const char* TTS_LOCAL_ENDPOINT = "tts_local_endpoint";
-            static constexpr const char* TTS_LOCAL_KEY = "tts_local_key";
-        };
+namespace speechlib
+{
+struct Common
+{
+    static constexpr const char* SPEECH_SECTION = "speech_configs";
+    static constexpr const char* SPEECH_SDK_REGION = "speech_sdk_region";
+    static constexpr const char* SPEECH_SDK_KEY = "speech_sdk_key";
+    static constexpr const char* MAX_SYNTHESIZER = "max_synthesizer";
+    static constexpr const char* SR_USE_LOCAL_CONTAINER =
+    "sr_use_local_container";
+    static constexpr const char* TTS_USE_LOCAL_CONTAINER =
+    "tts_use_local_container";
+    static constexpr const char* SR_LOCAL_ENDPOINT = "sr_local_endpoint";
+    static constexpr const char* SR_LOCAL_KEY = "sr_local_key";
+    static constexpr const char* TTS_LOCAL_ENDPOINT = "tts_local_endpoint";
+    static constexpr const char* TTS_LOCAL_KEY = "tts_local_key";
+    static constexpr const char* TTS_LOCALE = "tts_locale";
+    static constexpr const char* TTS_VOICE_NAME = "tts_voice_name";
+};
 
-    }
-}
+} // namespace speechlib
+} // namespace Microsoft
diff --git a/MRCP/ms-recog/packages.config b/MRCP/ms-recog/packages.config
index bfebb7db..fd5134f8 100644
--- a/MRCP/ms-recog/packages.config
+++ b/MRCP/ms-recog/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.CognitiveServices.Speech" version="1.6.0" targetFramework="native" />
+  <package id="Microsoft.CognitiveServices.Speech" version="1.7.0" targetFramework="native" />
 </packages>
\ No newline at end of file
diff --git a/MRCP/ms-synth/packages.config b/MRCP/ms-synth/packages.config
index bfebb7db..fd5134f8 100644
--- a/MRCP/ms-synth/packages.config
+++ b/MRCP/ms-synth/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.CognitiveServices.Speech" version="1.6.0" targetFramework="native" />
+  <package id="Microsoft.CognitiveServices.Speech" version="1.7.0" targetFramework="native" />
 </packages>
\ No newline at end of file
diff --git a/MRCP/ms-synth/src/synthesizer_pool.h b/MRCP/ms-synth/src/synthesizer_pool.h
index 442cdcd7..376706a0 100644
--- a/MRCP/ms-synth/src/synthesizer_pool.h
+++ b/MRCP/ms-synth/src/synthesizer_pool.h
@@ -21,7 +21,14 @@ class SpeechSynthesizerFactory
             ConfigManager::GetStrValue(Common::SPEECH_SECTION, Common::TTS_LOCAL_KEY);
             static auto endpoint =
             ConfigManager::GetStrValue(Common::SPEECH_SECTION, Common::TTS_LOCAL_ENDPOINT);
-            speechConfig = SpeechConfig::FromEndpoint(endpoint, localKey);
+            if(localKey.empty())
+            {
+                speechConfig = SpeechConfig::FromEndpoint(endpoint);
+            }
+            else
+            {
+                speechConfig = SpeechConfig::FromEndpoint(endpoint, localKey);
+            }
         }
         else
         {
@@ -32,10 +39,21 @@ class SpeechSynthesizerFactory
 
             speechConfig = SpeechConfig::FromSubscription(subscriptionKey, region); // create from subscription
         }
-        
+
         speechConfig->SetSpeechSynthesisOutputFormat(SpeechSynthesisOutputFormat::Raw16Khz16BitMonoPcm);
-        speechConfig->SetSpeechSynthesisVoiceName(
-        "Microsoft Server Speech Text to Speech Voice (en-US, JessaNeural)");
+        static auto locale =
+        ConfigManager::GetStrValue(Common::SPEECH_SECTION, Common::TTS_LOCALE);
+        if(!locale.empty())
+        {
+            speechConfig->SetSpeechSynthesisLanguage(locale);
+        }
+        static auto voiceName =
+        ConfigManager::GetStrValue(Common::SPEECH_SECTION, Common::TTS_VOICE_NAME);
+        if(!voiceName.empty())
+        {
+            speechConfig->SetSpeechSynthesisVoiceName(voiceName);
+        }
+
         return SpeechSynthesizer::FromConfig(speechConfig, nullptr);
     }
 
diff --git a/MRCP/sample-conf/config.json b/MRCP/sample-conf/config.json
index b3bd1538..b5497c3a 100644
--- a/MRCP/sample-conf/config.json
+++ b/MRCP/sample-conf/config.json
@@ -8,6 +8,8 @@
     "sr_local_key": "",
     "tts_use_local_container": false,
     "tts_local_endpoint": "",
-    "tts_local_key": ""
+    "tts_local_key": "",
+    "tts_locale": "",
+    "tts_voice_name": "Microsoft Server Speech Text to Speech Voice (en-US, JessaNeural)"
   }
 }
\ No newline at end of file