diff --git a/export.py b/export.py
index 8df151b..0f05e62 100644
--- a/export.py
+++ b/export.py
@@ -40,7 +40,7 @@
     tokenizer = None
 
 # inference
-wav_or_scp = "/Users/shixian/Downloads/asr_example_hotword.wav"
+wav_or_scp = os.path.join(model_path, "example", "en.mp3")
 language_list = [0]
 textnorm_list = [15]
 res = model_bin(wav_or_scp, language_list, textnorm_list, tokenizer=tokenizer)
diff --git a/model.py b/model.py
index 53adb25..b32b931 100644
--- a/model.py
+++ b/model.py
@@ -18,7 +18,7 @@
 class SinusoidalPositionEncoder(torch.nn.Module):
     """ """
 
-    def __int__(self, d_model=80, dropout_rate=0.1):
+    def __init__(self, d_model=80, dropout_rate=0.1):
         pass
 
     def encode(