Systems and methods for acoustic simulation

An acoustic simulator, comprising:

• a processor;
• a graphics processing unit (GPU);
• and
• a memory, the memory containing an acoustic modeling application;
• where the acoustic modeling application directs the processor to:
• obtain a digital model of an object;
• calculate a plurality of vibrational modes of the object;
• conflate the plurality of vibrational modes into a plurality of chords, where each chord comprises a subset of the plurality of vibrational modes;
• calculate, for each chord, a chord sound field in the time domain, where the chord sound field describes acoustic pressure surrounding the object when the object oscillates in accordance with the subset of the plurality of vibrational modes using the GPU;
• deconflate each chord sound field into a plurality of modal sound fields, where each modal sound field describes acoustic pressure surrounding the object when the object oscillates in accordance with a single vibrational mode;
• store each modal sound field in a far-field acoustic transfer (FFAT) map, wherein—the FFAT map approximates a squared transfer amplitude at a plurality of coordinates;
• receive an interaction with the digital interaction of the object;
• and
• simulate an acoustic response of the object using the FFAT map.