AudioContextOptions dictionary (used when
AudioContext) may contain a property named
latencyHint, which indicates the preferred
maximum latency in seconds for the audio context. The value is specified either
as a predefined
String or a
audioContextOptions.latencyHint = "interactive"; audioContextOptions.latencyHint = 0.2; var latencyHint = audioContextOptions.latencyHint;
The preferred maximum latency for the
AudioContext. There are two ways
this value can be specified.
The best way to specify the preferred latency is to use a predefined
String. The allowed strings are:
- The browser balances audio output latency and power consumption when selecting a latency value.
- The audio is involved in interactive elements, such as responding to user actions or needing to coincide with visual cues such as a video or game action. The browser selects the lowest possible latency that doesn't cause glitches in the audio. This is likely to require increased power consumption. This is the default value.
- The browser selects a latency that will maximize playback time by minimizing power consumption at the expense of latency. Useful for non-interactive playback, such as playing music.
The value can also be specified as a double-precision floating-point value, specifying the preferred maximum latency in seconds. This provides more precise control over the balance between audio latency and device energy usage.
To determine the actual latency of the context after creating it, check the value of
|Web Audio API |
BCD tables only load in the browser