{
  "request": {
    "method": "POST",
    "url": "https://www.lalal.ai/api/v1/change_voice/",
    "headers": {
      "X-License-Key": "<license-key>",
      "Content-Type": "application/json"
    },
    "body": {
      "source_id": "src_3f5a8b7c2e1d4f9a",
      "preset": {
        "voice_pack_id": "ALEX_KAYE",
        "accent": 0.75,
        "tonality_reference": "source_file",
        "dereverb_enabled": true,
        "encoder_format": "wav"
      }
    }
  },
  "response": {
    "status": "success",
    "task_id": "tsk_4b2c8d1e6f7a9c0b"
  }
}