Sound engine

Built on it

• Acoustic materials and assemblies —
• Acoustical engineering — Acoustics add-on and sound engine for BimCraft and ModelCraft with four calculation sheets: reverberation time, mass-law sound reduction, composite partitions and room sound level.
• Acoustics — Room acoustics, sound insulation, noise maps, listening.

Use it in your add-on

Name it in your manifest's needs. When someone adds your add-on, their account brings this engine too, and every edition loads it the first time your add-on needs it. Version ranges arrive with AL.13.

{
  "id": "com.example.my-addon",
  "apps": ["bimcraft", "civilcraft"],
  "needs": ["engine.acoustics"]
}

Methods and standards

Sabine and Eyring reverberation with air absorption from the ISO 9613-1 formula, absorption by materials, people and furniture, a Fourier transform, a computed impulse response with a Schroeder measure-back, and convolution with dry sounds. It assumes a diffuse field: it is a guide for choosing finishes, not a prediction of how one room measures.

Limits

Lab. Only BimCraft hosts it; no other app and no Super host yet. Not built: the statistical, geometric, wave, metrics, insulation and outdoor modules. Not checked against measured rooms.