Support Audio as a domain in Schema

PiperOrigin-RevId: 699716595

Author: tfx-copybara

RELEASE.md

@@ -6,6 +6,8 @@
 
 ## Bug Fixes and Other Changes
 
+*   Add Audio as a schema domain.
+
 ## Breaking Changes
 
 ## Deprecations

tensorflow_metadata/proto/v0/schema.proto

@@ -144,7 +144,7 @@ message ValueCountList {
 }
 
 // Describes schema-level information about a specific feature.
-// NextID: 36
+// NextID: 37
 message Feature {
   // The name of the feature.
   optional string name = 1;  // required
@@ -205,6 +205,7 @@ message Feature {
     // Supported semantic domains.
     NaturalLanguageDomain natural_language_domain = 24;
     ImageDomain image_domain = 25;
+    AudioDomain audio_domain = 36;
     MIDDomain mid_domain = 26;
     URLDomain url_domain = 27;
     TimeDomain time_domain = 28;
@@ -637,6 +638,9 @@ message ImageDomain {
   optional int64 max_image_byte_size = 2;
 }
 
+// Audio data.
+message AudioDomain {}
+
 // Knowledge graph ID, see: https://www.wikidata.org/wiki/Property:P646
 message MIDDomain {}