Update asr.py

asr.py

@@ -66,8 +66,11 @@ model = Wav2Vec2ForCTC.from_pretrained(MODEL_ID)
 # )
 
 
-def transcribe(audio_data, lang="eng (English)"):
+def transcribe(audio_data=None, lang="eng (English)"):
 
+    if not audio_data:
+        return "<<ERROR: Empty Audio Input>>"
+    
     if isinstance(audio_data, tuple):
         # microphone
         sr, audio_samples = audio_data
@@ -78,6 +81,7 @@ def transcribe(audio_data, lang="eng (English)"):
             )
     else:
         # file upload
+        
         isinstance(audio_data, str)
         audio_samples = librosa.load(audio_data, sr=ASR_SAMPLING_RATE, mono=True)[0]