support speechamtics end_of_utterance_silence_trigger (#121)

specs.json

@@ -1085,6 +1085,7 @@
       "additional_vocab": "array",
       "diarization": "string",
       "speaker_diarization_config": "#sm_speakerDiarizationConfig",
+      "conversation_config": "#sm_conversationConfig",
       "enable_partials": "boolean",
       "max_delay": "number",
       "max_delay_mode": {
@@ -1112,6 +1113,13 @@
     "required": [
     ]
   },
+  "sm_conversationConfig": {
+    "properties": {
+      "end_of_utterance_silence_trigger": "number"
+    },
+    "required": [
+    ]
+  },
   "sm_puctuationOverrides": {
     "properties": {
       "permitted_marks": "array",

test/jambonz-verb-test.js

@@ -644,6 +644,24 @@ test("validate correct verbs", async (t) => {
           }
         }
       ]
+    },
+    {
+      "verb": "transcribe",
+      "transcriptionHook": "http://example.com/transcribe",
+      "recognizer": {
+        "vendor": "speechmatics",
+        "language": "en",
+        "speechmaticsOptions": {
+          "transcription_config": {
+            "language": "en",
+            "enable_partials": true,
+            "max_delay": 2,
+            "conversation_config": {
+              "end_of_utterance_silence_trigger": 0.5
+            }
+          }
+        }
+      }
     }
   ];
   try {