{
  "error": "Transcription failed: Command '['/home/martin/fastapi/transcription_service/subs_venv/bin/demucs', '--two-stems=vocals', '-d', 'cuda:1', '-o', '/home/martin/fastapi/transcription_service', '--filename', 'processed_{stem}.wav', '/tmp/tmpi_12_g9j.mp3']' returned non-zero exit status 1."
}