Update stt_google.py

stt_google.py

@@ -476,5 +476,10 @@ class GoogleCloudSTT(STTInterface):
             "FLAC": speech.RecognitionConfig.AudioEncoding.FLAC,
             "MP3": speech.RecognitionConfig.AudioEncoding.MP3,
             "OGG_OPUS": speech.RecognitionConfig.AudioEncoding.OGG_OPUS,
+            "MULAW": speech.RecognitionConfig.AudioEncoding.MULAW,
+            "AMR": speech.RecognitionConfig.AudioEncoding.AMR,
+            "AMR_WB": speech.RecognitionConfig.AudioEncoding.AMR_WB,
+            "ENCODING_UNSPECIFIED": speech.RecognitionConfig.AudioEncoding.ENCODING_UNSPECIFIED
         }
-        return encoding_map.get(encoding_str, speech.RecognitionConfig.AudioEncoding.WEBM_OPUS)
+        # Default to LINEAR16 if not found
+        return encoding_map.get(encoding_str.upper(), speech.RecognitionConfig.AudioEncoding.LINEAR16)