AudioContext.getOutputTimestamp

The getOutputTimestamp() property of the AudioContext interface returns a new AudioTimestamp object containing two correlated context's audio stream position values.

The two values are as follows:

• The AudioTimestamp.contextTime member contains the time of the sample frame which is currently being rendered by the audio output device (i.e., output audio stream position), in the same units and origin as context's AudioContext.currentTime
• The AudioTimestamp.performanceTime member contains the time, estimating the moment when the sample frame corresponding to the stored contextTime value was rendered by the audio output device, in the same units and origin as performance.now().

Syntax

var timestamp = AudioContext.getOutputTimestamp()

Parameters

None.

Returns

An AudioTimestamp, which has the following properties.

• contextTime: A point in the time coordinate system of the currentTime for the BaseAudioContext.
• performanceTime: A point in the time coordinate system of a Performance interface.

Specifications

Browser Compatibility