Get Speech-to-Text transcription synchronously

Example request

{
  "transcribeConfig": {
    "groqConfig": {
      "temperature": 1
    },
    "modelId": "groq/whisper-large-v3",
    "language": "en",
    "sampleRateHertz": 16000,
    "numberOfChannels": 1,
    "endOfTurnConfidenceThreshold": 0.5
  },
  "audioData": {
    "content": "<YOUR_AUDIO>"
  }
}