Audio plugin programming makes extensive use of lookup tables for expensive operations. Pre-calculating is a useful technique for such real-time sensitive work

Audio plugin programming makes extensive use of lookup tables for expensive operations. Pre-calculating is a useful technique for such real-time sensitive work (like games that have to render a new frame every 16ms @ 60hz or audio plugins that need to return potentially a buffer every 0.72ms @ 32 samples/44.1kHz).