diff --git a/texttospeech/google/cloud/texttospeech_v1/proto/cloud_tts.proto b/texttospeech/google/cloud/texttospeech_v1/proto/cloud_tts.proto
index 2afe1a8b7dee..07ac4ebebeef 100644
--- a/texttospeech/google/cloud/texttospeech_v1/proto/cloud_tts.proto
+++ b/texttospeech/google/cloud/texttospeech_v1/proto/cloud_tts.proto
@@ -1,4 +1,4 @@
-// Copyright 2018 Google Inc.
+// Copyright 2018 Google LLC.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -11,27 +11,29 @@
 // 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.
+//
 
 syntax = "proto3";
 
-package google.cloud.texttospeech.v1beta1;
+package google.cloud.texttospeech.v1;
 
 import "google/api/annotations.proto";
 
 option cc_enable_arenas = true;
-option go_package = "google.golang.org/genproto/googleapis/cloud/texttospeech/v1beta1;texttospeech";
+option csharp_namespace = "Google.Cloud.TextToSpeech.V1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/texttospeech/v1;texttospeech";
 option java_multiple_files = true;
 option java_outer_classname = "TextToSpeechProto";
-option java_package = "com.google.cloud.texttospeech.v1beta1";
+option java_package = "com.google.cloud.texttospeech.v1";
+option php_namespace = "Google\\Cloud\\TextToSpeech\\V1";
 
 
 // Service that implements Google Cloud Text-to-Speech API.
 service TextToSpeech {
-  // Returns a list of [Voice][google.cloud.texttospeech.v1beta1.Voice]
-  // supported for synthesis.
+  // Returns a list of Voice supported for synthesis.
   rpc ListVoices(ListVoicesRequest) returns (ListVoicesResponse) {
     option (google.api.http) = {
-      get: "/v1beta1/voices"
+      get: "/v1/voices"
     };
   }
 
@@ -39,7 +41,7 @@ service TextToSpeech {
   // has been processed.
   rpc SynthesizeSpeech(SynthesizeSpeechRequest) returns (SynthesizeSpeechResponse) {
     option (google.api.http) = {
-      post: "/v1beta1/text:synthesize"
+      post: "/v1/text:synthesize"
       body: "*"
     };
   }
@@ -175,6 +177,11 @@ message AudioConfig {
   // An identifier which selects 'audio effects' profiles that are applied on
   // (post synthesized) text to speech.
   // Effects are applied on top of each other in the order they are given.
+  // See
+  //
+  // [audio-profiles](https:
+  // //cloud.google.com/text-to-speech/docs/audio-profiles)
+  // for current supported profile ids.
   repeated string effects_profile_id = 6;
 }
 
diff --git a/texttospeech/synth.metadata b/texttospeech/synth.metadata
index e9f21b74b8c1..c12c262a4b00 100644
--- a/texttospeech/synth.metadata
+++ b/texttospeech/synth.metadata
@@ -1,5 +1,5 @@
 {
-  "updateTime": "2019-01-24T17:39:41.039359Z",
+  "updateTime": "2019-02-01T19:05:35.269409Z",
   "sources": [
     {
       "generator": {
@@ -12,8 +12,8 @@
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "9aac88a22468b1e291937f55fa1ef237adfdc63e",
-        "internalRef": "230568136"
+        "sha": "bce093dab3e65c40eb9a37efbdc960f34df6037a",
+        "internalRef": "231974277"
       }
     },
     {