fallback to fp32 weights if int8 counterpart is not available

app/asr_worker.py

@@ -191,9 +191,9 @@ def create_recognizer(
     entry = STREAMING_ZIPFORMER_MODELS[model_id]
 
     tokens_file = entry['tokens']
-    encoder_file = entry['encoder_int8'] if precision == 'int8' else entry['encoder_fp32']
-    decoder_file = entry['decoder_fp32']
-    joiner_file = entry['joiner_int8'] if precision == 'int8' else entry['joiner_fp32']
+    encoder_file = entry['encoder_int8'] if precision == 'int8' and entry['encoder_int8'] else entry['encoder_fp32']
+    decoder_file = entry['decoder_int8'] if precision == 'int8' and entry['decoder_int8'] else entry['decoder_fp32']
+    joiner_file = entry['joiner_int8'] if precision == 'int8' and entry['joiner_int8'] else entry['joiner_fp32']
 
     tokens_path = hf_hub_download(repo_id=model_id, filename=tokens_file, cache_dir=str(CACHE_DIR))
     encoder_path = hf_hub_download(repo_id=model_id, filename=encoder_file, cache_dir=str(CACHE_DIR))