MediaSourceAudioInputNode.PlaybackSpeedFactor Property

Definition

Namespace:

Windows.Media.Audio

Gets or sets the playback speed factor for the MediaSource audio input node.

public:
 property double PlaybackSpeedFactor { double get(); void set(double value); };

double PlaybackSpeedFactor();

void PlaybackSpeedFactor(double value);

public double PlaybackSpeedFactor { get; set; }

var double = mediaSourceAudioInputNode.playbackSpeedFactor;
mediaSourceAudioInputNode.playbackSpeedFactor = double;

Public Property PlaybackSpeedFactor As Double

Property Value

Double

double

A value indicating the playback speed factor.

Remarks

This is a linear scale of the playback speed. So, for example a value of .5 will result in half-speed playback and a value of 2.0 will play the audio back at double speed.

The value you specify for this property is clamped to the value of the MaxPlaybackSpeedFactor property of the AudioGraphSettings object used to initialize the audio graph to which the node belongs. The default maximum value is 1024.

Important

When an audio graph supports a playback speed factor greater than 1, the system must allocate additional memory in order to maintain a sufficient buffer of audio data. For this reason, setting MaxPlaybackSpeedFactor to the lowest value required by your app will reduce the memory consumption of your app. If your app will only play back content at normal speed, it is recommended that you set MaxPlaybackSpeedFactor to 1.