Update asr.py

asr.py

@@ -82,7 +82,8 @@ def transcribe(audio_data=None, lang="eng (English)"):
     else:
         # file upload
         
-        isinstance(audio_data, str)
+        if not isinstance(audio_data, str):
+            return "<<ERROR: Invalid Audio Input Instance: {}>>".format(type(audio_data))
         audio_samples = librosa.load(audio_data, sr=ASR_SAMPLING_RATE, mono=True)[0]
 
     lang_code = lang.split()[0]