Update utils/audio_processing.py

utils/audio_processing.py

@@ -75,7 +75,7 @@ def download_audio_as_wav(url, max_filesize_mb=70):
             # Convert to WAV (outside temp_dir so it persists)
             temp_wav = tempfile.NamedTemporaryFile(delete=False, suffix=".wav")
             convert_cmd = ["ffmpeg", "-y", "-i", audio_path, temp_wav.name]
-            subprocess.run(convert_cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, check=True)
+            subprocess.run(convert_cmd, stdout=subprocess.PIPE("utf-8", errors="ignore"), stderr=subprocess.PIPE("utf-8", errors="ignore"), check=True)
 
             # Return WAV file path; temp_dir and downloaded audio cleaned automatically
             return temp_wav.name