Volumetric Acoustic Laboratory

A real 3-D pressure field inside a voxelised vocal tract.

← articulation calibration instrument

Checking WebGPU compute support…

Glottis 30 / 43

tissue / wall negative pressure positive pressure

Static tract shape

Accent Vowel snapshot Voxel resolution

Excitation and render

Glottal source Duration 0.75 s

Ready to allocate the pressure volume.

Measured render

Grid: —
Air voxels: —
Internal rate: —
Relative work: —
Render wall time: —
Realtime factor: —
CPU agreement: —
Raw lip peak: —

What is actually simulated

A scalar acoustic wave equation is advanced throughout every air voxel. Tissue voxels impose rigid zero-normal-velocity walls; the lip end has an absorbing pressure outlet. Centre and side cavities occupy one connected field, so transverse diffraction and higher-order modes can emerge. This first experiment is a static oral tract: moving tissue, yielding walls, nasal sinuses and aeroacoustic turbulence remain future layers.