How can I change the video quality of my Room from SD to HD and vice-versa?

You can update Room Settings in the Room’s JSON Raw Body using our Rest API Service:

HTTP PATCH \ -H "Authorization: Basic $(echo -ne ": " | base64 --wrap 0)" \ -H "content-type: application/json" -d ' 
{ 
   "name": "test Room", 
   "settings": { 
   "participants": "6", 
   "quality": "SD", // possible values: SD,HD, and LD 
   "auto_recording": true 
} 
}' "https://api.enablex.io/video/v1/rooms/"

Learn more about Configuring a Room here.