change function for ctc mode

nemo_asr.py

@@ -13,8 +13,10 @@ def transcribe(file, modelName="stt_rw_conformer_transducer_large"):
 #     out_file.write(content)
     #out_file.write(content)  # async write
     #print(out_file.name)
-  asr_model = nemo_asr.models.EncDecRNNTBPEModel.from_pretrained(
-                model_name=modelName)
+  asr_model = nemo_asr.models.EncDecCTCModelBPE.from_pretrained(
+              model_name="stt_rw_conformer_ctc_large")
+  #nemo_asr.models.EncDecRNNTBPEModel.from_pretrained(
+                #model_name=modelName)
 #   if not file.name.endswith("wav"):
 #     sound = AudioSegment.from_mp3(out_file.name)
 #     sound.export(out_file.name, format="wav")