Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The underrunDuration read-only property of the AudioPlaybackStats interface is a number indicating the total duration of the underrun events that have occurred since the audio context was initialized.
A double-precision floating point number indicating the duration of underrun events, in seconds. Initialized to 0.
const audioCtx = new AudioContext();
const stats = audioCtx.playbackStats;
// ...
// Log total duration of underrun events
console.log(stats.underrunDuration);See also the main AudioPlaybackStats reference page for a more in-depth example.