This API stops the file that’s being played to a member after it was initiated by the Play API.
API Endpoint
https://api.plivo.com/v1/Account/{auth_id}/Conference/{conference_name}/Member/{member_id}/Play/
Use either member_id or all the same way you did to start playing audio to a member. If you initiated the play using member_id, calling the stop API with all will not stop the audio.
Attributes
No arguments need to be passed.
{
  "message": "playing in conference stopped",
  "member_id": "10",
  "api_id": "2867b6e2-58c3-11e1-86da-adf28403fe48"
}