X3D version 4.0 was approved by Web3D Consortium and ISO in 2023.[/X3D, diagnostic]
X3D version 4.0 offers many new features including interoperability with HTML5, glTF
2.0 Physically Based Rendering (PBR), and Web Audio API.[/X3D, diagnostic]
<meta name='info' content='This work presents an innovative solution of the spatial
sound in X3DOM framework,
that based on a combinational methodology. Specifically, we suggested the enrichment
of X3DOM with spatial sound features, using both the X3D sound nodes and the structure
of Web Audio API.'/> [/X3D/head/meta[3], diagnostic]
<meta name='TODO' content='credit for audio files'/> [/X3D/head/meta[8], diagnostic]
<AudioClip DEF=''/> url array does not contains link to .wav or .midi sound files,
browsers not required
to support other formats (url='"sound/violin.mp3" "https://x3dgraphics.com/examples/X3dForAdvancedModeling/AudioSpatialSound/sound/violin.mp3"')
[/X3D/Scene/StreamAudioDestination/SpatialSound[1]/Gain/AudioClip, warning]
<AudioClip DEF=''/> url array does not contains link to .wav or .midi sound files,
browsers not required
to support other formats (url='"sound/saxophone.mp3" "https://x3dgraphics.com/examples/X3dForAdvancedModeling/AudioSpatialSound/sound/saxophone.mp3"')
[/X3D/Scene/StreamAudioDestination/SpatialSound[2]/Gain/AudioClip, warning]