diff --git a/infer/modules/uvr5/mdxnet.py b/infer/modules/uvr5/mdxnet.py
index 3e6d652..150f92f 100644
--- a/infer/modules/uvr5/mdxnet.py
+++ b/infer/modules/uvr5/mdxnet.py
@@ -224,37 +224,6 @@ class Predictor:
             downsample_audio(path_vocal, opt_path_vocal, format)
             downsample_audio(path_other, opt_path_other, format)
 
-def downsample_audio(input_path: str, output_path: str, format: str) -> None:
-    if not os.path.exists(input_path): return
-    
-    input_container = av.open(input_path)
-    output_container = av.open(output_path, 'w')
-
-    # Create a stream in the output container
-    input_stream = input_container.streams.audio[0]
-    output_stream = output_container.add_stream(format)
-
-    output_stream.bit_rate = 128_000 # 128kb/s (equivalent to -q:a 2)
-
-    # Copy packets from the input file to the output file
-    for packet in input_container.demux(input_stream):
-        for frame in packet.decode():
-            for out_packet in output_stream.encode(frame):
-                output_container.mux(out_packet)
-
-    for packet in output_stream.encode():
-        output_container.mux(packet)
-    
-    # Close the containers
-    input_container.close()
-    output_container.close()
-
-    try: # Remove the original file
-        os.remove(input_path)
-    except Exception as e:
-        print(f"Failed to remove the original file: {e}")
-
-
 class MDXNetDereverb:
     def __init__(self, chunks, device):
         self.onnx = "assets/uvr5_weights/onnx_dereverb_By_FoxJoy"