Update app.py

app.py

@@ -31,7 +31,7 @@ def predict(text):
     with tempfile.NamedTemporaryFile(suffix='.mp4') as tmp:
         video_path = gr.make_waveform((32000, outputs[0].cpu().numpy().astype(np.float16).ravel()), bars_color=random.choice(COLORS), bar_count=75)
         command = f'ffmpeg -y -i {video_path} -vf "scale=250:150" {tmp.name}'
-        subprocess.run(command.split()) 
+        subprocess.run(command.split(), shell=True) 
 
         return (32000, outputs[0][0].cpu().numpy().astype(np.float16)), tmp.name