amazon-chime-sdk / com.amazonaws.services.chime.sdk.meetings.realtime / DefaultRealtimeController

# DefaultRealtimeController

`class DefaultRealtimeController : RealtimeControllerFacade`

### Constructors

#### <init> | `DefaultRealtimeController(audioClientController: AudioClientController, audioClientObserver: AudioClientObserver, videoClientController: VideoClientController, videoClientObserver: VideoClientObserver)`

### Functions

#### addRealtimeDataMessageObserver | Subscribes to receive message on a topic, there could be multiple observers per topic `fun addRealtimeDataMessageObserver(topic: String, observer: DataMessageObserver): Unit`
#### addRealtimeObserver | Subscribes to real time events with an observer `fun addRealtimeObserver(observer: RealtimeObserver): Unit`
#### addRealtimeTranscriptEventObserver | Subscribes to transcript event with an observer `fun addRealtimeTranscriptEventObserver(observer: TranscriptEventObserver): Unit`
#### realtimeIsVoiceFocusEnabled | Checks if Amazon Voice Focus is enabled. `fun realtimeIsVoiceFocusEnabled(): Boolean`
#### realtimeLocalMute | Mute the audio input. `fun realtimeLocalMute(): Boolean`
#### realtimeLocalUnmute | Unmutes the audio input. `fun realtimeLocalUnmute(): Boolean`
#### realtimeSendDataMessage | Send message via data channel. Messages are only expected to be sent after audio video has started, otherwise will be ignored. Even though one can send data messages to any valid topic, in order to receive the messages from the given topic, one need to subscribed to the topic by calling addRealtimeDataMessageObserver. LifetimeMs specifies milliseconds for the given message can be stored in server side. Up to 1024 messages may be stored for a maximum of 5 minutes. `fun realtimeSendDataMessage(topic: String, data: Any, lifetimeMs: Int): Unit`
#### realtimeSetVoiceFocusEnabled | Enable or disable Amazon Voice Focus (ML-based noise suppression) on the audio input. `fun realtimeSetVoiceFocusEnabled(enabled: Boolean): Boolean`
#### removeRealtimeDataMessageObserverFromTopic | Unsubscribes from a message topic `fun removeRealtimeDataMessageObserverFromTopic(topic: String): Unit`
#### removeRealtimeObserver | Unsubscribes from real time events by removing the specified observer `fun removeRealtimeObserver(observer: RealtimeObserver): Unit`
#### removeRealtimeTranscriptEventObserver | Unsubscribes from transcript event by removing the specified observer `fun removeRealtimeTranscriptEventObserver(observer: TranscriptEventObserver): Unit`