diff --git a/.repo-metadata.json b/.repo-metadata.json
index cb999539..9b326564 100644
--- a/.repo-metadata.json
+++ b/.repo-metadata.json
@@ -2,7 +2,7 @@
     "name": "texttospeech",
     "name_pretty": "Google Cloud Text-to-Speech",
     "product_documentation": "https://cloud.google.com/text-to-speech",
-    "client_documentation": "https://googleapis.dev/python/texttospeech/latest",
+    "client_documentation": "https://cloud.google.com/python/docs/reference/texttospeech/latest",
     "issue_tracker": "https://issuetracker.google.com/savedsearches/5235428",
     "release_level": "ga",
     "language": "python",
diff --git a/CHANGELOG.md b/CHANGELOG.md
index bb64e454..1c03751b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-cloud-texttospeech/#history
 
+## [2.9.0](https://www.github.com/googleapis/python-texttospeech/compare/v2.8.0...v2.9.0) (2021-11-16)
+
+
+### Features
+
+* update v1 proto ([#221](https://www.github.com/googleapis/python-texttospeech/issues/221)) ([e8776d7](https://www.github.com/googleapis/python-texttospeech/commit/e8776d7a482f495ed5ae0e1235609e3e2d3e6067))
+
 ## [2.8.0](https://www.github.com/googleapis/python-texttospeech/compare/v2.7.1...v2.8.0) (2021-11-13)
 
 
diff --git a/README.rst b/README.rst
index 46d00774..af8acb41 100644
--- a/README.rst
+++ b/README.rst
@@ -16,7 +16,7 @@ powerful neural network models.
 .. |versions| image:: https://img.shields.io/pypi/pyversions/google-cloud-texttospeech.svg
    :target: https://pypi.org/project/google-cloud-texttospeech/
 .. _Cloud Text-to-Speech API: https://cloud.google.com/texttospeech
-.. _Client Library Documentation: https://googleapis.dev/python/texttospeech/latest
+.. _Client Library Documentation: https://cloud.google.com/python/docs/reference/texttospeech/latest
 .. _Product Documentation: https://cloud.google.com/texttospeech
 
 Quick Start
diff --git a/google/cloud/texttospeech_v1/services/text_to_speech/async_client.py b/google/cloud/texttospeech_v1/services/text_to_speech/async_client.py
index 98b4a6a6..b3f3bfff 100644
--- a/google/cloud/texttospeech_v1/services/text_to_speech/async_client.py
+++ b/google/cloud/texttospeech_v1/services/text_to_speech/async_client.py
@@ -223,17 +223,7 @@ async def list_voices(
         # and friendly error handling.
         rpc = gapic_v1.method_async.wrap_method(
             self._client._transport.list_voices,
-            default_retry=retries.Retry(
-                initial=0.1,
-                maximum=60.0,
-                multiplier=1.3,
-                predicate=retries.if_exception_type(
-                    core_exceptions.DeadlineExceeded,
-                    core_exceptions.ServiceUnavailable,
-                ),
-                deadline=600.0,
-            ),
-            default_timeout=600.0,
+            default_timeout=None,
             client_info=DEFAULT_CLIENT_INFO,
         )
 
@@ -319,17 +309,7 @@ async def synthesize_speech(
         # and friendly error handling.
         rpc = gapic_v1.method_async.wrap_method(
             self._client._transport.synthesize_speech,
-            default_retry=retries.Retry(
-                initial=0.1,
-                maximum=60.0,
-                multiplier=1.3,
-                predicate=retries.if_exception_type(
-                    core_exceptions.DeadlineExceeded,
-                    core_exceptions.ServiceUnavailable,
-                ),
-                deadline=600.0,
-            ),
-            default_timeout=600.0,
+            default_timeout=None,
             client_info=DEFAULT_CLIENT_INFO,
         )
 
diff --git a/google/cloud/texttospeech_v1/services/text_to_speech/transports/base.py b/google/cloud/texttospeech_v1/services/text_to_speech/transports/base.py
index 8fea5ae1..339d03f0 100644
--- a/google/cloud/texttospeech_v1/services/text_to_speech/transports/base.py
+++ b/google/cloud/texttospeech_v1/services/text_to_speech/transports/base.py
@@ -122,34 +122,10 @@ def _prep_wrapped_messages(self, client_info):
         # Precompute the wrapped methods.
         self._wrapped_methods = {
             self.list_voices: gapic_v1.method.wrap_method(
-                self.list_voices,
-                default_retry=retries.Retry(
-                    initial=0.1,
-                    maximum=60.0,
-                    multiplier=1.3,
-                    predicate=retries.if_exception_type(
-                        core_exceptions.DeadlineExceeded,
-                        core_exceptions.ServiceUnavailable,
-                    ),
-                    deadline=600.0,
-                ),
-                default_timeout=600.0,
-                client_info=client_info,
+                self.list_voices, default_timeout=None, client_info=client_info,
             ),
             self.synthesize_speech: gapic_v1.method.wrap_method(
-                self.synthesize_speech,
-                default_retry=retries.Retry(
-                    initial=0.1,
-                    maximum=60.0,
-                    multiplier=1.3,
-                    predicate=retries.if_exception_type(
-                        core_exceptions.DeadlineExceeded,
-                        core_exceptions.ServiceUnavailable,
-                    ),
-                    deadline=600.0,
-                ),
-                default_timeout=600.0,
-                client_info=client_info,
+                self.synthesize_speech, default_timeout=None, client_info=client_info,
             ),
         }
 
diff --git a/google/cloud/texttospeech_v1/types/cloud_tts.py b/google/cloud/texttospeech_v1/types/cloud_tts.py
index cb59a13a..4360ff61 100644
--- a/google/cloud/texttospeech_v1/types/cloud_tts.py
+++ b/google/cloud/texttospeech_v1/types/cloud_tts.py
@@ -51,6 +51,8 @@ class AudioEncoding(proto.Enum):
     LINEAR16 = 1
     MP3 = 2
     OGG_OPUS = 3
+    MULAW = 5
+    ALAW = 6
 
 
 class ListVoicesRequest(proto.Message):
diff --git a/samples/snippets/requirements.txt b/samples/snippets/requirements.txt
index 940dbb9e..18e57e1b 100644
--- a/samples/snippets/requirements.txt
+++ b/samples/snippets/requirements.txt
@@ -1,2 +1,2 @@
 future==0.18.2
-google-cloud-texttospeech==2.7.1
+google-cloud-texttospeech==2.8.0
diff --git a/setup.py b/setup.py
index b7d0924d..04b851f3 100644
--- a/setup.py
+++ b/setup.py
@@ -35,7 +35,7 @@
 
 name = "google-cloud-texttospeech"
 description = "Google Cloud Text-to-Speech API client library"
-version = "2.8.0"
+version = "2.9.0"
 # Should be one of:
 # 'Development Status :: 3 - Alpha'
 # 'Development Status :: 4 - Beta'