Agora RTC Objective-C API Reference Refactor

Data Fields
AudioVolumeInfo Struct Reference

## Data Fields
uid_t | uid
unsigned int | volume
unsigned int | vad
double | voicePitch

## Constructor & Destructor Documentation

## ◆ AudioVolumeInfo()

AudioVolumeInfo | ( |  | ) |
| inline

## Field Documentation

## ◆ uid

uid_t uid

The user ID.

- In the local user's callback, `uid` is 0.
- In the remote users' callback, `uid` is the user ID of a remote user whose instantaneous volume is the highest.

## ◆ volume

unsigned int volume

The volume of the user. The value ranges between 0 (the lowest volume) and 255 (the highest volume). If the local user enables audio capturing and calls `muteLocalAudioStream` and set it as `true` to mute, the value of `volume` indicates the volume of locally captured audio signal. If the user calls `startAudioMixing(const char* filePath, bool loopback, int cycle, int startPos)`, the value of `volume` indicates the volume after audio mixing.

## ◆ vad

unsigned int vad

Voice activity status of the local user.

- 0: The local user is not speaking.
- 1: The local user is speaking.
  Note
- The `vad` parameter does not report the voice activity status of remote users. In a remote user's callback, the value of `vad` is always 1.
- To use this parameter, you must set `reportVad` to `true` when calling `enableAudioVolumeIndication`.

## ◆ voicePitch

double voicePitch

The voice pitch of the local user. The value ranges between 0.0 and 4000.0.

Note
  The `voicePitch` parameter does not report the voice pitch of remote users. In the remote users' callback, the value of `voicePitch` is always 0.0.