2008

The Sound helper lets you place 3D (spatial) or ambient sounds in a scene.
The sound may be located at a point and emit sound in a spherical or ellipsoid
pattern. The ellipsoid is pointed in a particular direction and may be shaped
to provide more or less directional focus from the location of the sound. The
sound node may also be used to describe an ambient sound that tapers off at
a specified distance from the sound node.
The red ellipsoid of the helper represents the outermost range for which the
sound can be heard. The blue ellipsoid represents the range of the maximum
strength of the sound. The area between the red and blue ellipsoids represents
a falloff area in which the volume varies in intensity. The helper's arrow points
in the direction toward which the sound is emanating.
NOTE The Sound helper object must be linked to an existing audio clip in the
scene. Therefore, you must have an
AudioClip on page 7112 helper object in the
scene in order for the Sound helper to play.
Procedures
To create a Sound helper object:
1 Add a Sound helper by clicking the Sound button, then click-drag in the
Top viewport to create its icon.
2 Press Pick Audio Clip and select an AudioClip helper object in the scene.
3 Rotate the icon to determine the direction in which the sound is
emanated.
4 Use the controls to adjust the range and strength of the playback sound.
VRML Files | 7101