🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Author: gcf-owl-bot[bot]

google/cloud/aiplatform_v1/types/content.py

@@ -371,9 +371,11 @@ class ReplicatedVoiceConfig(proto.Message):
 
     Attributes:
         mime_type (str):
-            Optional. The mimetype of the voice sample. Currently only
-            mime_type=audio/pcm is supported, which is raw mono 16-bit
-            signed little-endian pcm data, with 24k sampling rate.
+            Optional. The mimetype of the voice sample. The only
+            currently supported value is ``audio/wav``. This represents
+            16-bit signed little-endian wav data, with a 24kHz sampling
+            rate. ``mime_type`` will default to ``audio/wav`` if not
+            set.
         voice_sample_audio (bytes):
             Optional. The sample of the custom voice.
     """