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MicrophoneSource

Overview

MicrophoneSource captures input from a physical microphone in the real world.

The MicrophoneSource node belongs to the Sound component and requires at least level 2, its default container field is children. It is available from X3D version 4.0 or higher.

Hierarchy

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2
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+ X3DNode
  + X3DChildNode
    + X3DTimeDependentNode
      + X3DSoundSourceNode
        + MicrophoneSource

Fields

SFNode [in, out] metadata NULL [X3DMetadataObject]

Information about this node can be contained in a MetadataBoolean, MetadataDouble, MetadataFloat, MetadataInteger, MetadataString or MetadataSet node.

Hint

SFString [in, out] description “”

Author-provided prose that describes intended purpose of the url asset.

Hint

  • Many XML tools substitute XML character references for special characters automatically if needed within an attribute value (such as & for & ampersand character, or " for “ quotation-mark character).

SFBool [in, out] enabled TRUE

Enables/disables node operation.

SFFloat [in, out] gain 1 (-∞,∞)

The gain field is a factor that represents the amount of linear amplification to apply to the output of the node.

Hint

  • Negative gain factors negate the input signal.

Warning

  • Decibel values shall not be used.

SFString [in, out] mediaDeviceID “”

mediaDeviceID field provides ID parameter functionality. (TODO experimental)

SFTime [in, out] startTime 0 (-∞,∞)

Absolute time: number of seconds since January 1, 1970, 00:00:00 GMT.

Hint

  • ROUTE a time value matching system clock to this field, such as output event from TouchSensor touchTime or TimeTrigger triggerTime.

SFTime [in, out] resumeTime 0 (-∞,∞)

When resumeTime becomes <= time now, isPaused becomes false and AudioClip becomes active. Absolute time: number of seconds since January 1, 1970, 00:00:00 GMT.

Hint

  • ROUTE a time value matching system clock to this field, such as output event from TouchSensor touchTime or TimeTrigger triggerTime.

SFTime [in, out] pauseTime 0 (-∞,∞)

When time now >= pauseTime, isPaused becomes true and AudioClip becomes paused. Absolute time: number of seconds since January 1, 1970, 00:00:00 GMT.

Hint

  • ROUTE a time value matching system clock to this field, such as output event from TouchSensor touchTime or TimeTrigger triggerTime.

SFTime [in, out] stopTime 0 (-∞,∞)

Absolute time: number of seconds since January 1, 1970, 00:00:00 GMT.

Hint

  • ROUTE a time value matching system clock to this field, such as output event from TouchSensor touchTime or TimeTrigger triggerTime.

Warnings

  • An active TimeSensor node ignores set_cycleInterval and set_startTime events.
  • An active TimeSensor node ignores set_stopTime event values less than or equal to startTime.

SFBool [out] isPaused

isPaused true/false events are sent when AudioClip is paused/resumed.

Warning

  • It is an error to define this transient outputOnly field in an X3D file, instead only use it a source for ROUTE events.

SFBool [out] isActive

isActive true/false events are sent when playback starts/stops.

Warning

  • It is an error to define this transient outputOnly field in an X3D file, instead only use it a source for ROUTE events.

SFTime [out] elapsedTime

Current elapsed time since AudioClip activated/running, cumulative in seconds, and not counting any paused time.

Hint

  • elapsedTime is a nonnegative SFTime duration interval, not an absolute clock time.

Warning

  • It is an error to define this transient outputOnly field in an X3D file, instead only use it a source for ROUTE events.

Advice

Hint

Warning

  • Multiple security and privacy condiderations need to be observed.

Example

View Source in Playground

See Also

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