Create utils_audio.py

utils_audio.py

@@ -0,0 +1,14 @@
+import os, subprocess, tempfile, uuid
+
+def convert_to_wav(src_path: str, sr: int = 16000, mono: bool = True) -> str:
+    """Convert mp3/mp4/wav to a normalized wav for downstream tools."""
+    tmpdir = tempfile.mkdtemp(prefix="audio_")
+    out_path = os.path.join(tmpdir, f"{uuid.uuid4().hex}.wav")
+    cmd = [
+        "ffmpeg", "-y", "-i", src_path,
+        "-ar", str(sr),
+        "-ac", "1" if mono else "2",
+        out_path
+    ]
+    subprocess.run(cmd, check=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    return out_path