1{
2 "sweep": {
3 "id": "strike-mass",
4 "title": "Drumstick: stick mass",
5 "text": "The same speed with a lighter or heavier stick. A light stick gives a short contact and a bright tap. A heavier stick stays in contact longer, which by itself favours the low modes, but it also pushes the sheet further, and the extra energy reaches the high partials through the nonlinearity. In these clips the two effects roughly cancel between 10 and 60 g, and the 120 g stick is both the loudest and the brightest of the set. The peak contact force changes little with the mass (about 180 N at 10 g and 230 N at 120 g), because the local response of the sheet limits it.",
6 "base": {
7 "excitation": "strike"
8 },
9 "param": "stickMass",
10 "unit": "g",
11 "scale": 0.001,
12 "values": [
13 0.01,
14 0.03,
15 0.06,
16 0.12
17 ]
18 },
19 "gainDb": 20,
20 "clips": [
21 {
22 "id": "strike-mass-0",
23 "label": "10 g",
24 "overrides": {
25 "excitation": "strike",
26 "stickMass": 0.01
27 },
28 "metrics": {
29 "peakPa": 2.4523065090179443,
30 "peakDbSpl": 101.77089510394072,
31 "rmsPa": 0.009748421483710152,
32 "centroidHz": 653.7471218095145,
33 "t60": {
34 "20-100": 5.538550837455765,
35 "100-500": 4.285028987219901,
36 "500-2k": 2.442444889477234,
37 "2k-8k": 5.195090262636712
38 },
39 "bandLevelsDb": {
40 "20-100": -1.0090017121898356,
41 "100-500": 0,
42 "500-2k": 2.9696071806744158,
43 "2k-8k": 6.819717987935846
44 }
45 },
46 "gainDb": 20,
47 "peakDbfs": 27.791495017220345,
48 "run": {
49 "steps": 3072000,
50 "seconds": 33.24944101900002,
51 "nx": 39,
52 "ny": 58,
53 "dt": 0.0000013020833333333333,
54 "maxContactForce": 183.01646423339844
55 }
56 },
57 {
58 "id": "strike-mass-1",
59 "label": "30 g",
60 "overrides": {
61 "excitation": "strike",
62 "stickMass": 0.03
63 },
64 "metrics": {
65 "peakPa": 2.552067756652832,
66 "peakDbSpl": 102.11724409859474,
67 "rmsPa": 0.010939866293578663,
68 "centroidHz": 654.5269112833041,
69 "t60": {
70 "20-100": 5.084050764268366,
71 "100-500": 4.166515631486475,
72 "500-2k": 2.5109722913953734,
73 "2k-8k": 4.596561207548714
74 },
75 "bandLevelsDb": {
76 "20-100": -10.075329770223362,
77 "100-500": 0,
78 "500-2k": 1.0910838167922776,
79 "2k-8k": -0.46759244010335266
80 }
81 },
82 "gainDb": 20,
83 "peakDbfs": 28.13784401187437,
84 "run": {
85 "steps": 3072000,
86 "seconds": 33.29605858899999,
87 "nx": 39,
88 "ny": 58,
89 "dt": 0.0000013020833333333333,
90 "maxContactForce": 195.15817260742188
91 }
92 },
93 {
94 "id": "strike-mass-2",
95 "label": "60 g",
96 "overrides": {
97 "excitation": "strike",
98 "stickMass": 0.06
99 },
100 "metrics": {
101 "peakPa": 2.5779266357421875,
102 "peakDbSpl": 102.20481116207424,
103 "rmsPa": 0.012280058731913094,
104 "centroidHz": 685.8591374882415,
105 "t60": {
106 "20-100": 5.45505622061483,
107 "100-500": 4.1459982970770435,
108 "500-2k": 2.5631196544395514,
109 "2k-8k": 3.7734433289411755
110 },
111 "bandLevelsDb": {
112 "20-100": -4.100052476437536,
113 "100-500": 0,
114 "500-2k": 1.07150938620482,
115 "2k-8k": -4.06296335596134
116 }
117 },
118 "gainDb": 20,
119 "peakDbfs": 28.22541107535387,
120 "run": {
121 "steps": 3072000,
122 "seconds": 33.295849032,
123 "nx": 39,
124 "ny": 58,
125 "dt": 0.0000013020833333333333,
126 "maxContactForce": 205.1404571533203
127 }
128 },
129 {
130 "id": "strike-mass-3",
131 "label": "120 g",
132 "overrides": {
133 "excitation": "strike",
134 "stickMass": 0.12
135 },
136 "metrics": {
137 "peakPa": 2.5909969806671143,
138 "peakDbSpl": 102.24873822462771,
139 "rmsPa": 0.016981093460975014,
140 "centroidHz": 1346.1888670737524,
141 "t60": {
142 "20-100": 4.977879620568599,
143 "100-500": 3.4722960312957474,
144 "500-2k": 2.402361979247858,
145 "2k-8k": 3.242845785608569
146 },
147 "bandLevelsDb": {
148 "20-100": -5.864454013747185,
149 "100-500": 0,
150 "500-2k": 1.8461751877165682,
151 "2k-8k": 6.098235637829198
152 }
153 },
154 "gainDb": 20,
155 "peakDbfs": 28.269338137907347,
156 "run": {
157 "steps": 3072000,
158 "seconds": 33.28190999400002,
159 "nx": 39,
160 "ny": 58,
161 "dt": 0.0000013020833333333333,
162 "maxContactForce": 231.7774658203125
163 }
164 }
165 ]
166}