{ "sweep": { "id": "damping-sigma0-strike", "title": "Damping: frequency-independent loss (drumstick strike)", "text": "The same sweep excited by the default drumstick strike (30 g at 3 m/s) instead of the corner push. The decay of the low band follows the same rule, while the brightness changes less than it does under the push.", "param": "sigma0", "unit": "1/s", "values": [ 0.4, 1.15, 3.5 ], "base": { "excitation": "strike" } }, "gainDb": 20, "clips": [ { "id": "damping-sigma0-strike-0", "label": "0.4 1/s", "overrides": { "excitation": "strike", "sigma0": 0.4 }, "metrics": { "peakPa": 2.5521035194396973, "peakDbSpl": 102.11736581536444, "rmsPa": 0.01121416963976382, "centroidHz": 606.4947317759568, "t60": { "20-100": 11.067948551614444, "100-500": 6.297896731836091, "500-2k": 4.5985448474912465, "2k-8k": 3.961877391563836 }, "bandLevelsDb": { "20-100": -6.65528499913194, "100-500": 0, "500-2k": -0.9945795783755074, "2k-8k": -2.4109717931920507 } }, "gainDb": 20, "peakDbfs": 28.137965728644076, "run": { "steps": 3072000, "seconds": 33.175440555999984, "nx": 39, "ny": 58, "dt": 0.0000013020833333333333, "maxContactForce": 195.1529998779297 } }, { "id": "damping-sigma0-strike-1", "label": "1.15 1/s", "overrides": { "excitation": "strike", "sigma0": 1.15 }, "metrics": { "peakPa": 2.552067756652832, "peakDbSpl": 102.11724409859474, "rmsPa": 0.010939866293578663, "centroidHz": 654.5269112833041, "t60": { "20-100": 5.084050764268366, "100-500": 4.166515631486475, "500-2k": 2.5109722913953734, "2k-8k": 4.596561207548714 }, "bandLevelsDb": { "20-100": -10.075329770223362, "100-500": 0, "500-2k": 1.0910838167922776, "2k-8k": -0.46759244010335266 } }, "gainDb": 20, "peakDbfs": 28.13784401187437, "run": { "steps": 3072000, "seconds": 33.18467716099997, "nx": 39, "ny": 58, "dt": 0.0000013020833333333333, "maxContactForce": 195.15817260742188 } }, { "id": "damping-sigma0-strike-2", "label": "3.5 1/s", "overrides": { "excitation": "strike", "sigma0": 3.5 }, "metrics": { "peakPa": 2.551957607269287, "peakDbSpl": 102.11686920022684, "rmsPa": 0.010625210054200059, "centroidHz": 513.4940680216587, "t60": { "20-100": 1.8914301512769929, "100-500": 1.869226353726675, "500-2k": 1.8723222787944866, "2k-8k": 5.921194636086805 }, "bandLevelsDb": { "20-100": -9.592628506927717, "100-500": 0, "500-2k": -1.9533493155855766, "2k-8k": -1.7951500764588992 } }, "gainDb": 20, "peakDbfs": 28.137469113506477, "run": { "steps": 3072000, "seconds": 33.30193984199967, "nx": 39, "ny": 58, "dt": 0.0000013020833333333333, "maxContactForce": 195.17520141601562 } } ] }