Update pipeline/__init__.py

pipeline/__init__.py

@@ -0,0 +1,11 @@
+import ffmpeg
+
+def extract_audio(video_path: str, out_audio: str = "audio.wav") -> str:
+    (
+        ffmpeg
+        .input(video_path)
+        .output(out_audio, ac=1, ar=16000, format="wav")
+        .overwrite_output()
+        .run(quiet=True)
+    )
+    return out_audio