baseLatency property

The baseLatency read-only property of the AudioContext returns a double that represents the number of seconds of processing latency incurred by the AudioContext passing an audio buffer from the AudioDestinationNode — i.e. the end of the audio graph — into the host system's audio subsystem ready for playing.

Note: You can request a certain latency during AudioContext.AudioContext with the latencyHint option, but the browser may ignore the option.