Knowledge Base

jitterBufferTargetDelay

inbound-rtpinboundaudiovideo

Accumulated jitter due to network characteristics.

Description

Real number; in seconds

There are various reasons why the jitter buffer delay might be increased to a higher value, such as to achieve AV synchronization or because a jitterBufferTarget was set on a RTCRtpReceiver. When using one of these mechanisms, it can be useful to keep track of the minimal jitter buffer delay that could have been achieved, so WebRTC clients can track the amount of additional delay that is being added.

This metric works the same way as jitterBufferTargetDelay, except that it is not affected by external mechanisms that increase the jitter buffer target delay, such as jitterBufferTarget, AV sync, or any other mechanisms. This metric is purely based on the network characteristics such as jitter and packet loss, and can be seen as the minimum obtainable jitter buffer delay if no external factors would affect it. The metric is updated every time * jitterBufferEmittedCount is updated.

See also