agora::rtc::RemoteAudioStats Struct Reference

#include <IAgoraRtcEngine.h>

Public Attributes
uid_t	uid
int	quality
int	networkTransportDelay
int	jitterBufferDelay
int	audioLossRate
int	numChannels
int	receivedSampleRate
int	receivedBitrate
int	totalFrozenTime
int	frozenRate
int	totalActiveTime
int	publishDuration
int	qoeQuality
int	qualityChangedReason
int	mosValue

Detailed Description

Audio statistics of a remote user

Member Data Documentation

uid

uid_t agora::rtc::RemoteAudioStats::uid

User ID of the remote user sending the audio streams.

quality

int agora::rtc::RemoteAudioStats::quality

Audio quality received by the user: QUALITY_TYPE.

networkTransportDelay

int agora::rtc::RemoteAudioStats::networkTransportDelay

Network delay (ms) from the sender to the receiver.

jitterBufferDelay

int agora::rtc::RemoteAudioStats::jitterBufferDelay

Network delay (ms) from the receiver to the jitter buffer.

audioLossRate

int agora::rtc::RemoteAudioStats::audioLossRate

The audio frame loss rate in the reported interval.

numChannels

int agora::rtc::RemoteAudioStats::numChannels

The number of channels.

receivedSampleRate

int agora::rtc::RemoteAudioStats::receivedSampleRate

The sample rate (Hz) of the received audio stream in the reported interval.

receivedBitrate

int agora::rtc::RemoteAudioStats::receivedBitrate

The average bitrate (Kbps) of the received audio stream in the reported interval.

totalFrozenTime

int agora::rtc::RemoteAudioStats::totalFrozenTime

The total freeze time (ms) of the remote audio stream after the remote user joins the channel. In a session, audio freeze occurs when the audio frame loss rate reaches 4%.

frozenRate

int agora::rtc::RemoteAudioStats::frozenRate

The total audio freeze time as a percentage (%) of the total time when the audio is available.

totalActiveTime

int agora::rtc::RemoteAudioStats::totalActiveTime

The total time (ms) when the remote user in the COMMUNICATION profile or the remote host in the LIVE_BROADCASTING profile neither stops sending the audio stream nor disables the audio module after joining the channel.

publishDuration

int agora::rtc::RemoteAudioStats::publishDuration

The total publish duration (ms) of the remote audio stream.

qoeQuality

int agora::rtc::RemoteAudioStats::qoeQuality

Quality of experience (QoE) of the local user when receiving a remote audio stream. See EXPERIENCE_QUALITY_TYPE.

Since

v3.3.0

qualityChangedReason

int agora::rtc::RemoteAudioStats::qualityChangedReason

The reason for poor QoE of the local user when receiving a remote audio stream. See EXPERIENCE_POOR_REASON.

Since

v3.3.0

mosValue

int agora::rtc::RemoteAudioStats::mosValue

The quality of the remote audio stream as determined by the Agora real-time audio MOS (Mean Opinion Score) measurement method in the reported interval. The return value ranges from 0 to 500. Dividing the return value by 100 gets the MOS score, which ranges from 0 to 5. The higher the score, the better the audio quality.

Since

v3.3.1

The subjective perception of audio quality corresponding to the Agora real-time audio MOS scores is as follows:

MOS score	Perception of audio quality
Greater than 4	Excellent. The audio sounds clear and smooth.
From 3.5 to 4	Good. The audio has some perceptible impairment, but still sounds clear.
From 3 to 3.5	Fair. The audio freezes occasionally and requires attentive listening.
From 2.5 to 3	Poor. The audio sounds choppy and requires considerable effort to understand.
From 2 to 2.5	Bad. The audio has occasional noise. Consecutive audio dropouts occur, resulting in some information loss. The users can communicate only with difficulty.
Less than 2	Very bad. The audio has persistent noise. Consecutive audio dropouts are frequent, resulting in severe information loss. Communication is nearly impossible.