curl -X POST "https://maas-api.unisound.com/v1/audio/speech/tasks" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
  "model": "u2-tts",
  "text": "",
  "voice_setting": {
    "voice_id": "zh-CN-xiaoxiao",
    "volume": 50,
    "pitch": 50
  },
  "audio_setting": {
    "audio_sample_rate": 32000,
    "format": "mp3",
    "channel": 1
  }
}'

{
  "model": "u2-tts",
  "text": "",
  "voice_setting": {
    "voice_id": "zh-CN-xiaoxiao",
    "volume": 50,
    "pitch": 50
  },
  "audio_setting": {
    "audio_sample_rate": 32000,
    "format": "mp3",
    "channel": 1
  }
}