Currently, in the calling SDK we do not have a direct API to set the audio output level, but you may do the following approaches to accomplish the same. I have relayed this feedback internally to our product engineering team.
You need to make additional code update as an alternative approach
Mute Other Participants on the call- Manage calls - An Azure Communication Services how-to guide | Microsoft Learn
- You can can code' adjust audio element volume (you will need to get the audio element first)
- Use our Raw media API and low level access or change the audio level Quickstart - Add raw media access to your app - An Azure Communication Services quickstart | Microsoft Learn
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