2 "sweep": {
3 "id": "strike-position",
4 "title": "Drumstick: strike position",
5 "text": "Where the sheet is struck decides which modes are excited: a strike at the center excites only modes that are symmetric about both axes, while a strike near an edge or a corner excites the twisting and edge modes as well.",
6 "base": {
7 "excitation": "strike"
8 },
9 "clips": [
10 {
11 "label": "center",
12 "params": {
13 "strikeFracX": 0.5,
14 "strikeFracY": 0.5
15 }
16 },
17 {
18 "label": "off-center (default)",
19 "params": {
20 "strikeFracX": 0.7,
21 "strikeFracY": 0.35
22 }
23 },
24 {
25 "label": "near the right edge",
26 "params": {
27 "strikeFracX": 0.95,
28 "strikeFracY": 0.5
29 }
30 },
31 {
32 "label": "near a corner",
33 "params": {
34 "strikeFracX": 0.92,
35 "strikeFracY": 0.08
36 }
37 }
38 ]
39 },
40 "gainDb": 20,
41 "clips": [
42 {
43 "id": "strike-position-0",
44 "label": "center",
45 "overrides": {
46 "excitation": "strike",
47 "strikeFracX": 0.5,
48 "strikeFracY": 0.5
49 },
50 "metrics": {
51 "peakPa": 4.090140342712402,
52 "peakDbSpl": 106.21416428608427,
53 "rmsPa": 0.017414943497971586,
54 "centroidHz": 449.3720005711135,
55 "t60": {
56 "20-100": 5.507011553639136,
57 "100-500": 4.742222884858844,
58 "500-2k": 2.4498227913617256,
59 "2k-8k": 3.8812279635413325
60 },
61 "bandLevelsDb": {
62 "20-100": -8.242444869098549,
63 "100-500": 0,
64 "500-2k": -1.3819603260077429,
65 "2k-8k": -2.7869660531175313
66 }
67 },
68 "gainDb": 20,
69 "peakDbfs": 32.23476419936389,
70 "run": {
71 "steps": 3072000,
72 "seconds": 33.197286171000016,
73 "nx": 39,
74 "ny": 58,
75 "dt": 0.0000013020833333333333,
76 "maxContactForce": 194.9879608154297
77 }
78 },
79 {
80 "id": "strike-position-1",
81 "label": "off-center (default)",
82 "overrides": {
83 "excitation": "strike",
84 "strikeFracX": 0.7,
85 "strikeFracY": 0.35
86 },
87 "metrics": {
88 "peakPa": 2.552067756652832,
89 "peakDbSpl": 102.11724409859474,
90 "rmsPa": 0.010939866293578663,
91 "centroidHz": 654.5269112833041,
92 "t60": {
93 "20-100": 5.084050764268366,
94 "100-500": 4.166515631486475,
95 "500-2k": 2.5109722913953734,
96 "2k-8k": 4.596561207548714
97 },
98 "bandLevelsDb": {
99 "20-100": -10.075329770223362,
100 "100-500": 0,
101 "500-2k": 1.0910838167922776,
102 "2k-8k": -0.46759244010335266
103 }
104 },
105 "gainDb": 20,
106 "peakDbfs": 28.13784401187437,
107 "run": {
108 "steps": 3072000,
109 "seconds": 33.08529265699998,
110 "nx": 39,
111 "ny": 58,
112 "dt": 0.0000013020833333333333,
113 "maxContactForce": 195.15817260742188
114 }
115 },
116 {
117 "id": "strike-position-2",
118 "label": "near the right edge",
119 "overrides": {
120 "excitation": "strike",
121 "strikeFracX": 0.95,
122 "strikeFracY": 0.5
123 },
124 "metrics": {
125 "peakPa": 2.0260727405548096,
126 "peakDbSpl": 100.1125007557196,
127 "rmsPa": 0.009846177464463899,
128 "centroidHz": 457.3865316122065,
129 "t60": {
130 "20-100": 5.380793195966296,
131 "100-500": 4.249767131031015,
132 "500-2k": 2.422769592299953,
133 "2k-8k": 4.487254634529499
134 },
135 "bandLevelsDb": {
136 "20-100": -5.746870054845811,
137 "100-500": 0,
138 "500-2k": -0.9576882448219131,
139 "2k-8k": -2.190169031270461
140 }
141 },
142 "gainDb": 20,
143 "peakDbfs": 26.13310066899922,
144 "run": {
145 "steps": 3072000,
146 "seconds": 33.18327378399999,
147 "nx": 39,
148 "ny": 58,
149 "dt": 0.0000013020833333333333,
150 "maxContactForce": 190.2689208984375
151 }
152 },
153 {
154 "id": "strike-position-3",
155 "label": "near a corner",
156 "overrides": {
157 "excitation": "strike",
158 "strikeFracX": 0.92,
159 "strikeFracY": 0.08
160 },
161 "metrics": {
162 "peakPa": 2.6406617164611816,
163 "peakDbSpl": 102.41365547106997,
164 "rmsPa": 0.012986906324117349,
165 "centroidHz": 539.8610576204195,
166 "t60": {
167 "20-100": 5.031269853074107,
168 "100-500": 4.657374851267341,
169 "500-2k": 2.6397616245726754,
170 "2k-8k": 4.413791387848751
171 },
172 "bandLevelsDb": {
173 "20-100": -7.612234909855623,
174 "100-500": 0,
175 "500-2k": -0.5897316266875166,
176 "2k-8k": -1.4461924028059059
177 }
178 },
179 "gainDb": 20,
180 "peakDbfs": 28.4342553843496,
181 "run": {
182 "steps": 3072000,
183 "seconds": 33.160981005999986,
184 "nx": 39,
185 "ny": 58,
186 "dt": 0.0000013020833333333333,
187 "maxContactForce": 196.79904174804688
188 }
189 }
190 ]
191}