User`s guide

7 Viewing Virtual Worlds
7-60
Listen to Sound in a Virtual World
In this section...
“System Requirements for Sound” on page 7-60
“Listen to Sound” on page 7-60
If a virtual world contains a Sound node and your computer supports sound, then you
can listen to the sound using these Simulink 3D Animation components:
• Simulink 3D Animation Viewer
• 3D Animation Player
• vr.canvas on a figure window
System Requirements for Sound
To listen to virtual world sound, use a computer setup that supports sound, including
having a sound card, speakers, and operating system support, such as ALSA (Advanced
Linux Sound Architecture) on Linux platforms.
For an AudioClip node, use a mono or stereo WAV file in uncompressed PCM format.
Note: A stereo sound source retains its channel separation during playback. Simulink
3D Animation attenuates the sound based on the distance of the viewer from the sound
location. The stereo channels are not affected by the relative position of the viewer to the
sound location and the viewer direction in the virtual world, even if the Sound node has
the spatialize field set to true.
Listen to Sound
Simulink 3D Animation enables sound by default.
To change the default behavior so that sound is disabled, set the Simulink 3D Animation
Figure > Rendering > Sound preference to off.
In the Simulink 3D Animation Viewer or 3D Animation Player, to disable sound , right-
click in the virtual world and clear the Rendering > Sound option.