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app.py

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+import gradio as gr
+import os
+from scipy.io.wavfile import write
+
+def inference(audio):
+  os.makedirs("out", exist_ok=True)
+  write('test.wav', audio[0], audio[1])
+  os.system("python3 -m demucs.separate -n htdemucs_ft test.wav -o out")
+  return "./out/htdemucs_ft/test/vocals.wav","./out/htdemucs_ft/test/bass.wav",\
+"./out/htdemucs_ft/test/drums.wav","./out/htdemucs_ft/test/other.wav"
+
+title = "Demucs"
+description = "Demucs: Music Source Separation"
+article = "<p style='text-align: center'><a href='' target='_blank'></a> | <a href='https://github.com/facebookresearch/demucs' target='_blank'>Github</a></p>"
+
+examples=[['test.mp3']]
+
+iface = gr.Interface(
+  inference,
+  gr.inputs.Audio(type="numpy", label="Input"),
+  [gr.outputs.Audio(type="file", label="Vocals"),gr.outputs.Audio(type="file", label="Bass"),gr.outputs.Audio(type="file", label="Drums"),gr.outputs.Audio(type="file", label="Other")],
+  title=title,
+  description=description,
+  article=article,
+  examples=examples
+  )
+
+iface.launch(enable_queue=True)

packages.txt

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+ffmpeg

requirements.txt

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+demucs
+scipy