feat:Add ALAW support on client library. And improve the ListVoiceRequest message's documentation

google/cloud/texttospeech_v1beta1/services/text_to_speech/async_client.py

@@ -179,14 +179,15 @@ async def list_voices(
             language_code (:class:`str`):
                 Optional. Recommended.
                 `BCP-47 <https://www.rfc-editor.org/rfc/bcp/bcp47.txt>`__
-                language tag. If specified, the ListVoices call will
+                language tag. If not specified, the API will return all
+                supported voices. If specified, the ListVoices call will
                 only return voices that can be used to synthesize this
                 language_code. E.g. when specifying "en-NZ", you will
-                get supported "en-\*" voices; when specifying "no", you
+                get supported "en-NZ" voices; when specifying "no", you
                 will get supported "no-\*" (Norwegian) and "nb-\*"
                 (Norwegian Bokmal) voices; specifying "zh" will also get
                 supported "cmn-\*" voices; specifying "zh-hk" will also
-                get supported "yue-\*" voices.
+                get supported "yue-hk" voices.
 
                 This corresponds to the ``language_code`` field
                 on the ``request`` instance; if ``request`` is provided, this

google/cloud/texttospeech_v1beta1/services/text_to_speech/client.py

@@ -342,14 +342,15 @@ def list_voices(
             language_code (str):
                 Optional. Recommended.
                 `BCP-47 <https://www.rfc-editor.org/rfc/bcp/bcp47.txt>`__
-                language tag. If specified, the ListVoices call will
+                language tag. If not specified, the API will return all
+                supported voices. If specified, the ListVoices call will
                 only return voices that can be used to synthesize this
                 language_code. E.g. when specifying "en-NZ", you will
-                get supported "en-\*" voices; when specifying "no", you
+                get supported "en-NZ" voices; when specifying "no", you
                 will get supported "no-\*" (Norwegian) and "nb-\*"
                 (Norwegian Bokmal) voices; specifying "zh" will also get
                 supported "cmn-\*" voices; specifying "zh-hk" will also
-                get supported "yue-\*" voices.
+                get supported "yue-hk" voices.
 
                 This corresponds to the ``language_code`` field
                 on the ``request`` instance; if ``request`` is provided, this

google/cloud/texttospeech_v1beta1/types/cloud_tts.py

@@ -56,6 +56,7 @@ class AudioEncoding(proto.Enum):
     MP3_64_KBPS = 4
     OGG_OPUS = 3
     MULAW = 5
+    ALAW = 6
 
 
 class ListVoicesRequest(proto.Message):
@@ -66,13 +67,14 @@ class ListVoicesRequest(proto.Message):
         language_code (str):
             Optional. Recommended.
             `BCP-47 <https://www.rfc-editor.org/rfc/bcp/bcp47.txt>`__
-            language tag. If specified, the ListVoices call will only
-            return voices that can be used to synthesize this
+            language tag. If not specified, the API will return all
+            supported voices. If specified, the ListVoices call will
+            only return voices that can be used to synthesize this
             language_code. E.g. when specifying "en-NZ", you will get
-            supported "en-\*" voices; when specifying "no", you will get
+            supported "en-NZ" voices; when specifying "no", you will get
             supported "no-\*" (Norwegian) and "nb-\*" (Norwegian Bokmal)
             voices; specifying "zh" will also get supported "cmn-\*"
-            voices; specifying "zh-hk" will also get supported "yue-\*"
+            voices; specifying "zh-hk" will also get supported "yue-hk"
             voices.
     """
 
@@ -132,8 +134,8 @@ class SynthesizeSpeechRequest(proto.Message):
             Required. The configuration of the
             synthesized audio.
         enable_time_pointing (Sequence[google.cloud.texttospeech_v1beta1.types.SynthesizeSpeechRequest.TimepointType]):
-            Whether and what timepoints should be
-            returned in the response.
+            Whether and what timepoints are returned in
+            the response.
     """
 
     class TimepointType(proto.Enum):

synth.metadata

@@ -4,15 +4,15 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/python-texttospeech.git",
-        "sha": "dc07688434edf0774a8b19d2c6250eddc942b60a"
+        "sha": "3d6431c1b978262ecd353746d45c62cfcab0c431"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "149a3a84c29c9b8189576c7442ccb6dcf6a8f95b",
-        "internalRef": "364411656"
+        "sha": "45445f476c39de13be89a3c5a45b67c7a2320fcf",
+        "internalRef": "365608171"
       }
     },
     {