What is the expected payload format to send audio to Plivo?

Plivo expects the audio to stream in a specific format. Below is the expected payload to send audio to Plivo.

 "event": "playAudio",
 "media": {
   "contentType": "audio/x-l16 or audio/x-mulaw",
   "sampleRate": 8000,
   "payload": "base64 encoded raw audio.."
  • contentType: can be (audio/x-l16, audio/x-mulaw)
  • sampleRate: 8000 or 16000
  • payload: base64 encoded raw audio
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