Voice SDK for React Native
- API Overview
  Agora provides ensured quality of experience (QoE) for worldwide Internet-based voice and video communications through SD-RTN™.
- IRtcEngine
  The basic interface of the Agora SDK that implements the core functions of real-time communication.
- IRtcEngineEx
  This interface class contains multi-channel methods.
- IRtcEngineEventHandler
  The SDK uses the IRtcEngineEventHandler interface to send event notifications to your app. Your app can get those notifications through methods that inherit this interface.
- IMediaPlayer
  This class provides media player functions and supports multiple instances.
- IAudioEncodedFrameObserver
  The encoded audio observer.
- IMediaPlayerCacheManager
  This class provides methods to manage cached media files.
- IMediaEngine
  The IMediaEngine class.
- IMediaPlayerSourceObserver
  Provides callbacks for media players.
- IAudioPcmFrameSink
  This class is used to get raw PCM audio.
- IAudioFrameObserverBase
  The audio frame observer.
- IAudioSpectrumObserver
  The audio spectrum observer.
- IMetadataObserver
  The metadata observer.
- IVideoEncodedFrameObserver
  Receives encoded video images.
- IMediaPlayerAudioFrameObserver
  The audio frame observer for the media player.
- IMediaPlayerVideoFrameObserver
  The video frame observer for the media player.
- IVideoFrameObserver
  The IVideoFrameObserver class.
- IFaceInfoObserver
  Facial information observer.
- ILocalSpatialAudioEngine
  This class calculates user positions through the SDK to implement the spatial audio effect.
- RtcSurfaceView
  The RtcSurfaceView class.
- RtcTextureView
  The RtcTextureView class.
- Class and Enum
  This page lists all the definitions of Class and the enums for React Native.

IAudioSpectrumObserver

The audio spectrum observer.

onLocalAudioSpectrum

Gets the statistics of a local audio spectrum.

onLocalAudioSpectrum?(data: AudioSpectrumData): void;

After successfully calling registerAudioSpectrumObserver to implement the onLocalAudioSpectrum callback in IAudioSpectrumObserver and calling enableAudioSpectrumMonitor to enable audio spectrum monitoring, the SDK triggers this callback as the time interval you set to report the received remote audio data spectrum before encoding.

Parameters

data: The audio spectrum data of the local user. See AudioSpectrumData.

onRemoteAudioSpectrum

Gets the remote audio spectrum.

onRemoteAudioSpectrum?(
    spectrums: UserAudioSpectrumInfo[],
    spectrumNumber: number
  ): void;

After successfully calling registerAudioSpectrumObserver to implement the onRemoteAudioSpectrum callback in the IAudioSpectrumObserver and calling enableAudioSpectrumMonitor to enable audio spectrum monitoring, the SDK will trigger the callback as the time interval you set to report the received remote audio data spectrum.

Parameters

spectrums: The audio spectrum information of the remote user, see UserAudioSpectrumInfo. The number of arrays is the number of remote users monitored by the SDK. If the array is null, it means that no audio spectrum of remote users is detected.
spectrumNumber: The number of remote users.