A new release of the Discord Social SDK is now available, with the following updates:
Voice
Added read-only access to the Discord desktop client's voice settings over RPC, including mute/deafen state, volumes, voice mode, and the configured push-to-talk key.
Fetch the current settings with Client::GetVoiceSettings, or subscribe to changes with Client::SetVoiceSettingsUpdatedCallback — both return the new VoiceSettings class.
See Reading Voice Settings from the Discord Client for details.