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Sound server added

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This commit is contained in:
David Rice
2026-06-16 17:36:21 +02:00
parent 528c7df10e
commit fdbbc98088
8 changed files with 522 additions and 0 deletions
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audio_test_20260616_164422.csv Normal file
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timestamp,freq_hz,vol,duration_s,avg_db,min_db,max_db,samples
2026-06-16T16:44:31,250,0.2,3.0,56.6,56.3,56.8,7
2026-06-16T16:44:34,500,0.2,3.0,56.0,56.0,56.1,6
2026-06-16T16:44:38,1000,0.2,3.0,57.3,56.2,58.1,6
2026-06-16T16:44:41,2000,0.2,3.0,61.8,58.6,64.4,5
2026-06-16T16:44:45,4000,0.2,3.0,63.1,61.1,65.2,6
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5 2026-06-16T16:44:41 2000 0.2 3.0 61.8 58.6 64.4 5
6 2026-06-16T16:44:45 4000 0.2 3.0 63.1 61.1 65.2 6

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audio_test_20260616_165924.csv Normal file
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timestamp,freq_hz,vol,duration_s,avg_db,min_db,max_db,samples
1 timestamp freq_hz vol duration_s avg_db min_db max_db samples

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audio_test_20260616_170849.csv Normal file
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timestamp,freq_hz,vol,duration_s,avg_db,min_db,max_db,samples
1 timestamp freq_hz vol duration_s avg_db min_db max_db samples

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audio_test_20260616_171013.csv Normal file
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timestamp,freq_hz,vol,duration_s,avg_db,min_db,max_db,samples
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audio_test_20260616_171319.csv Normal file
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2026-06-16T17:13:29,100,0.0,5.0,0.0,0.0,0.0,0
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audio_test_20260616_171529.csv Normal file
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2026-06-16T17:28:40,10000,0.9,5.0,80.0,77.6,80.5,9
2026-06-16T17:28:46,10000,1.0,5.0,81.1,79.2,81.7,9
2026-06-16T17:28:51,11000,0.0,5.0,69.5,63.7,80.9,9
2026-06-16T17:28:57,11000,0.1,5.0,65.5,62.6,67.0,9
2026-06-16T17:29:02,11000,0.2,5.0,72.2,67.9,73.6,9
2026-06-16T17:29:08,11000,0.3,5.0,76.1,72.5,77.0,9
2026-06-16T17:29:13,11000,0.4,5.0,78.8,74.2,79.7,9
2026-06-16T17:29:19,11000,0.5,5.0,80.6,75.2,81.6,9
2026-06-16T17:29:24,11000,0.6,5.0,82.3,76.9,83.3,9
2026-06-16T17:29:30,11000,0.7,5.0,83.9,78.8,84.8,10
2026-06-16T17:29:35,11000,0.8,5.0,84.8,80.0,85.8,10
2026-06-16T17:29:41,11000,0.9,5.0,86.0,82.2,86.7,9
2026-06-16T17:29:47,11000,1.0,5.0,86.5,80.5,87.4,9
2026-06-16T17:29:52,12000,0.0,5.0,70.2,64.3,79.4,9
2026-06-16T17:29:58,12000,0.1,5.0,61.1,60.3,62.3,10
2026-06-16T17:30:03,12000,0.2,5.0,61.9,60.0,63.3,10
2026-06-16T17:30:09,12000,0.3,5.0,64.9,62.9,66.2,10
2026-06-16T17:30:14,12000,0.4,5.0,67.8,65.2,69.1,10
2026-06-16T17:30:20,12000,0.5,5.0,70.4,67.8,71.6,10
2026-06-16T17:30:25,12000,0.6,5.0,72.2,69.8,73.2,10
2026-06-16T17:30:31,12000,0.7,5.0,73.7,71.7,74.6,9
2026-06-16T17:30:36,12000,0.8,5.0,75.0,72.7,76.1,9
2026-06-16T17:30:42,12000,0.9,5.0,75.9,73.3,76.9,9
2026-06-16T17:30:48,12000,1.0,5.0,76.8,73.4,77.9,9
2026-06-16T17:30:53,13000,0.0,5.0,68.5,63.1,77.0,10
2026-06-16T17:30:59,13000,0.1,5.0,61.1,61.0,61.4,9
2026-06-16T17:31:04,13000,0.2,5.0,63.6,61.0,65.5,9
2026-06-16T17:31:10,13000,0.3,5.0,67.9,65.1,69.6,9
2026-06-16T17:31:15,13000,0.4,5.0,71.0,68.2,72.3,9
2026-06-16T17:31:21,13000,0.5,5.0,73.2,70.1,74.3,9
2026-06-16T17:31:26,13000,0.6,5.0,74.8,71.9,75.8,9
2026-06-16T17:31:32,13000,0.7,5.0,76.2,73.5,77.3,8
2026-06-16T17:31:37,13000,0.8,5.0,77.6,75.2,78.5,9
2026-06-16T17:31:43,13000,0.9,5.0,78.5,75.9,79.6,8
2026-06-16T17:31:48,13000,1.0,5.0,79.6,76.0,80.6,9
2026-06-16T17:31:54,14000,0.0,5.0,70.1,64.2,79.7,9
2026-06-16T17:32:00,14000,0.1,5.0,60.4,59.0,62.3,9
2026-06-16T17:32:05,14000,0.2,5.0,57.8,57.6,58.2,9
2026-06-16T17:32:11,14000,0.3,5.0,57.6,57.3,57.8,9
2026-06-16T17:32:16,14000,0.4,5.0,58.2,57.6,58.7,9
2026-06-16T17:32:22,14000,0.5,5.0,59.2,58.5,59.8,9
2026-06-16T17:32:27,14000,0.6,5.0,60.3,59.7,60.9,9
2026-06-16T17:32:33,14000,0.7,5.0,61.4,60.7,61.9,9
2026-06-16T17:32:38,14000,0.8,5.0,62.3,61.4,62.8,9
2026-06-16T17:32:44,14000,0.9,5.0,63.2,62.2,64.0,7
2026-06-16T17:32:49,14000,1.0,5.0,64.4,63.3,65.0,9
2026-06-16T17:32:55,15000,0.0,5.0,62.1,59.7,65.1,9
2026-06-16T17:33:00,15000,0.1,5.0,58.3,57.6,59.1,9
2026-06-16T17:33:06,15000,0.2,5.0,57.6,57.2,57.8,9
2026-06-16T17:33:11,15000,0.3,5.0,58.4,57.7,59.0,9
2026-06-16T17:33:17,15000,0.4,5.0,59.9,58.9,60.7,9
2026-06-16T17:33:23,15000,0.5,5.0,61.5,60.3,62.4,9
2026-06-16T17:33:28,15000,0.6,5.0,63.1,62.0,63.9,9
2026-06-16T17:33:34,15000,0.7,5.0,64.5,63.6,65.3,9
2026-06-16T17:33:39,15000,0.8,5.0,65.6,64.9,66.1,9
2026-06-16T17:33:45,15000,0.9,5.0,66.6,65.7,67.3,7
2026-06-16T17:33:50,15000,1.0,5.0,67.2,66.1,67.7,9
1 timestamp freq_hz vol duration_s avg_db min_db max_db samples
2 2026-06-16T17:15:39 100 0.0 5.0 56.3 56.2 56.4 8
3 2026-06-16T17:15:44 100 0.1 5.0 56.2 56.1 56.2 9
4 2026-06-16T17:15:50 100 0.2 5.0 56.1 56.1 56.2 10
5 2026-06-16T17:15:56 100 0.3 5.0 56.1 56.0 56.1 9
6 2026-06-16T17:16:01 100 0.4 5.0 56.1 56.1 56.1 9
7 2026-06-16T17:16:07 100 0.5 5.0 56.1 56.1 56.1 9
8 2026-06-16T17:16:12 100 0.6 5.0 56.1 56.1 56.2 9
9 2026-06-16T17:16:18 100 0.7 5.0 56.1 56.1 56.1 9
10 2026-06-16T17:16:23 100 0.8 5.0 56.1 56.1 56.2 8
11 2026-06-16T17:16:29 100 0.9 5.0 56.2 56.1 56.2 9
12 2026-06-16T17:16:34 100 1.0 5.0 56.2 56.1 56.2 9
13 2026-06-16T17:16:40 250 0.0 5.0 56.2 56.1 56.2 9
14 2026-06-16T17:16:45 250 0.1 5.0 56.1 56.1 56.1 9
15 2026-06-16T17:16:51 250 0.2 5.0 56.1 56.0 56.1 9
16 2026-06-16T17:16:57 250 0.3 5.0 56.1 56.1 56.1 9
17 2026-06-16T17:17:02 250 0.4 5.0 56.1 56.1 56.1 9
18 2026-06-16T17:17:08 250 0.5 5.0 56.1 56.1 56.2 9
19 2026-06-16T17:17:13 250 0.6 5.0 56.1 56.1 56.2 9
20 2026-06-16T17:17:19 250 0.7 5.0 56.2 56.1 56.2 9
21 2026-06-16T17:17:24 250 0.8 5.0 56.2 56.1 56.2 8
22 2026-06-16T17:17:30 250 0.9 5.0 56.2 56.2 56.3 8
23 2026-06-16T17:17:35 250 1.0 5.0 56.4 56.3 56.4 9
24 2026-06-16T17:17:41 500 0.0 5.0 56.4 56.3 56.5 9
25 2026-06-16T17:17:46 500 0.1 5.0 56.3 56.2 56.4 9
26 2026-06-16T17:17:52 500 0.2 5.0 56.6 56.4 56.9 9
27 2026-06-16T17:17:57 500 0.3 5.0 58.5 57.1 59.3 9
28 2026-06-16T17:18:03 500 0.4 5.0 60.5 59.5 61.3 9
29 2026-06-16T17:18:09 500 0.5 5.0 62.4 61.4 63.2 9
30 2026-06-16T17:18:14 500 0.6 5.0 64.0 62.6 64.9 10
31 2026-06-16T17:18:20 500 0.7 5.0 65.5 64.2 66.3 9
32 2026-06-16T17:18:25 500 0.8 5.0 66.8 65.5 67.5 9
33 2026-06-16T17:18:31 500 0.9 5.0 67.9 66.6 68.6 9
34 2026-06-16T17:18:36 500 1.0 5.0 68.9 67.8 69.5 9
35 2026-06-16T17:18:42 1000 0.0 5.0 64.1 61.0 68.9 9
36 2026-06-16T17:18:47 1000 0.1 5.0 61.8 60.1 63.2 9
37 2026-06-16T17:18:53 1000 0.2 5.0 67.2 63.4 69.2 9
38 2026-06-16T17:18:58 1000 0.3 5.0 71.8 69.5 72.8 7
39 2026-06-16T17:19:04 1000 0.4 5.0 74.6 71.3 75.4 9
40 2026-06-16T17:19:09 1000 0.5 5.0 76.6 73.7 77.3 9
41 2026-06-16T17:19:15 1000 0.6 5.0 78.3 75.6 78.9 9
42 2026-06-16T17:19:20 1000 0.7 5.0 79.6 77.7 80.1 9
43 2026-06-16T17:19:26 1000 0.8 5.0 80.9 79.4 81.3 9
44 2026-06-16T17:19:32 1000 0.9 5.0 81.9 80.5 82.3 9
45 2026-06-16T17:19:37 1000 1.0 5.0 82.8 80.9 83.2 8
46 2026-06-16T17:19:43 2000 0.0 5.0 67.7 63.5 73.1 8
47 2026-06-16T17:19:48 2000 0.1 5.0 67.7 62.2 69.9 9
48 2026-06-16T17:19:54 2000 0.2 5.0 74.6 69.6 76.0 9
49 2026-06-16T17:19:59 2000 0.3 5.0 78.6 75.6 79.5 9
50 2026-06-16T17:20:05 2000 0.4 5.0 81.7 79.6 82.1 9
51 2026-06-16T17:20:10 2000 0.5 5.0 83.7 81.5 84.0 9
52 2026-06-16T17:20:16 2000 0.6 5.0 85.2 82.3 85.6 9
53 2026-06-16T17:20:21 2000 0.7 5.0 86.3 82.6 86.9 8
54 2026-06-16T17:20:27 2000 0.8 5.0 87.9 87.6 88.0 8
55 2026-06-16T17:20:32 2000 0.9 5.0 88.7 87.0 89.0 9
56 2026-06-16T17:20:38 2000 1.0 5.0 89.8 89.0 89.9 9
57 2026-06-16T17:20:44 3000 0.0 5.0 69.4 63.9 77.8 9
58 2026-06-16T17:20:49 3000 0.1 5.0 70.2 64.0 72.4 9
59 2026-06-16T17:20:55 3000 0.2 5.0 76.7 71.0 78.0 9
60 2026-06-16T17:21:00 3000 0.3 5.0 80.6 74.3 81.8 9
61 2026-06-16T17:21:06 3000 0.4 5.0 84.0 82.5 84.5 8
62 2026-06-16T17:21:11 3000 0.5 5.0 85.3 83.6 85.8 9
63 2026-06-16T17:21:17 3000 0.6 5.0 87.2 84.6 87.6 9
64 2026-06-16T17:21:22 3000 0.7 5.0 88.4 84.3 89.1 9
65 2026-06-16T17:21:28 3000 0.8 5.0 89.5 83.2 90.3 9
66 2026-06-16T17:21:33 3000 0.9 5.0 90.1 80.6 91.4 9
67 2026-06-16T17:21:39 3000 1.0 5.0 91.0 82.0 92.6 10
68 2026-06-16T17:21:45 4000 0.0 5.0 70.8 64.0 83.3 10
69 2026-06-16T17:21:50 4000 0.1 5.0 64.9 62.6 66.2 8
70 2026-06-16T17:21:56 4000 0.2 5.0 70.5 65.7 72.2 9
71 2026-06-16T17:22:01 4000 0.3 5.0 74.7 70.1 75.8 9
72 2026-06-16T17:22:07 4000 0.4 5.0 77.5 73.1 78.5 9
73 2026-06-16T17:22:12 4000 0.5 5.0 79.5 75.4 80.4 10
74 2026-06-16T17:22:18 4000 0.6 5.0 80.8 77.4 81.8 10
75 2026-06-16T17:22:23 4000 0.7 5.0 82.2 78.9 83.2 10
76 2026-06-16T17:22:29 4000 0.8 5.0 83.4 79.3 84.4 10
77 2026-06-16T17:22:34 4000 0.9 5.0 84.2 77.9 85.4 10
78 2026-06-16T17:22:40 4000 1.0 5.0 85.3 79.2 86.4 9
79 2026-06-16T17:22:45 5000 0.0 5.0 69.8 63.6 80.3 10
80 2026-06-16T17:22:51 5000 0.1 5.0 64.4 62.2 65.8 10
81 2026-06-16T17:22:57 5000 0.2 5.0 69.7 65.5 71.8 10
82 2026-06-16T17:23:02 5000 0.3 5.0 74.1 69.9 75.5 10
83 2026-06-16T17:23:08 5000 0.4 5.0 76.6 72.7 77.8 10
84 2026-06-16T17:23:13 5000 0.5 5.0 78.8 74.8 79.8 9
85 2026-06-16T17:23:19 5000 0.6 5.0 80.7 76.9 81.6 10
86 2026-06-16T17:23:24 5000 0.7 5.0 82.0 78.8 82.8 10
87 2026-06-16T17:23:30 5000 0.8 5.0 82.9 79.0 83.9 10
88 2026-06-16T17:23:35 5000 0.9 5.0 83.7 77.7 84.7 10
89 2026-06-16T17:23:41 5000 1.0 5.0 84.8 78.7 85.6 10
90 2026-06-16T17:23:46 6000 0.0 5.0 69.6 63.6 79.9 10
91 2026-06-16T17:23:52 6000 0.1 5.0 61.9 61.8 62.3 10
92 2026-06-16T17:23:57 6000 0.2 5.0 64.6 61.6 66.5 10
93 2026-06-16T17:24:03 6000 0.3 5.0 68.9 65.7 70.5 10
94 2026-06-16T17:24:09 6000 0.4 5.0 71.9 68.8 73.1 10
95 2026-06-16T17:24:14 6000 0.5 5.0 74.0 71.1 75.1 10
96 2026-06-16T17:24:20 6000 0.6 5.0 75.7 73.0 76.7 9
97 2026-06-16T17:24:25 6000 0.7 5.0 77.0 74.4 78.2 9
98 2026-06-16T17:24:31 6000 0.8 5.0 78.4 75.5 79.3 10
99 2026-06-16T17:24:36 6000 0.9 5.0 79.3 75.2 80.2 10
100 2026-06-16T17:24:42 6000 1.0 5.0 80.2 75.8 81.2 10
101 2026-06-16T17:24:47 7000 0.0 5.0 68.9 63.7 77.0 9
102 2026-06-16T17:24:53 7000 0.1 5.0 66.7 61.9 69.2 9
103 2026-06-16T17:24:58 7000 0.2 5.0 73.7 68.7 75.5 9
104 2026-06-16T17:25:04 7000 0.3 5.0 77.9 73.4 79.6 9
105 2026-06-16T17:25:09 7000 0.4 5.0 80.6 75.1 82.2 9
106 2026-06-16T17:25:15 7000 0.5 5.0 82.3 77.1 83.3 9
107 2026-06-16T17:25:21 7000 0.6 5.0 83.8 78.5 84.9 9
108 2026-06-16T17:25:26 7000 0.7 5.0 85.2 80.3 86.3 9
109 2026-06-16T17:25:32 7000 0.8 5.0 85.9 82.1 87.3 8
110 2026-06-16T17:25:37 7000 0.9 5.0 87.0 81.0 88.5 9
111 2026-06-16T17:25:43 7000 1.0 5.0 87.8 79.8 89.3 9
112 2026-06-16T17:25:48 8000 0.0 5.0 73.2 65.3 89.1 9
113 2026-06-16T17:25:54 8000 0.1 5.0 67.0 62.5 69.2 9
114 2026-06-16T17:25:59 8000 0.2 5.0 73.7 68.6 75.5 9
115 2026-06-16T17:26:05 8000 0.3 5.0 77.7 74.0 79.1 9
116 2026-06-16T17:26:10 8000 0.4 5.0 80.3 75.8 81.5 9
117 2026-06-16T17:26:16 8000 0.5 5.0 82.1 76.6 83.4 9
118 2026-06-16T17:26:21 8000 0.6 5.0 84.0 78.4 85.2 9
119 2026-06-16T17:26:27 8000 0.7 5.0 85.3 79.9 86.2 9
120 2026-06-16T17:26:33 8000 0.8 5.0 86.5 81.6 87.8 9
121 2026-06-16T17:26:38 8000 0.9 5.0 87.3 82.9 88.7 8
122 2026-06-16T17:26:44 8000 1.0 5.0 87.9 79.7 89.6 8
123 2026-06-16T17:26:49 9000 0.0 5.0 70.7 64.4 80.8 8
124 2026-06-16T17:26:55 9000 0.1 5.0 61.7 61.3 62.5 9
125 2026-06-16T17:27:00 9000 0.2 5.0 63.5 60.9 65.2 9
126 2026-06-16T17:27:06 9000 0.3 5.0 67.4 64.6 69.0 9
127 2026-06-16T17:27:11 9000 0.4 5.0 70.7 67.6 71.9 9
128 2026-06-16T17:27:17 9000 0.5 5.0 73.0 70.2 73.8 9
129 2026-06-16T17:27:22 9000 0.6 5.0 74.7 71.8 75.6 8
130 2026-06-16T17:27:28 9000 0.7 5.0 76.1 73.4 76.9 9
131 2026-06-16T17:27:34 9000 0.8 5.0 78.2 75.0 78.8 9
132 2026-06-16T17:27:39 9000 0.9 5.0 79.2 76.9 79.7 8
133 2026-06-16T17:27:45 9000 1.0 5.0 79.5 75.4 80.4 9
134 2026-06-16T17:27:50 10000 0.0 5.0 69.6 63.5 80.1 9
135 2026-06-16T17:27:56 10000 0.1 5.0 61.9 61.6 62.2 9
136 2026-06-16T17:28:01 10000 0.2 5.0 65.6 62.0 67.3 9
137 2026-06-16T17:28:07 10000 0.3 5.0 69.9 67.0 71.1 9
138 2026-06-16T17:28:12 10000 0.4 5.0 72.8 70.6 73.7 9
139 2026-06-16T17:28:18 10000 0.5 5.0 74.9 73.3 75.7 9
140 2026-06-16T17:28:23 10000 0.6 5.0 76.5 74.9 77.2 9
141 2026-06-16T17:28:29 10000 0.7 5.0 78.1 75.9 78.7 9
142 2026-06-16T17:28:34 10000 0.8 5.0 79.4 78.4 79.8 7
143 2026-06-16T17:28:40 10000 0.9 5.0 80.0 77.6 80.5 9
144 2026-06-16T17:28:46 10000 1.0 5.0 81.1 79.2 81.7 9
145 2026-06-16T17:28:51 11000 0.0 5.0 69.5 63.7 80.9 9
146 2026-06-16T17:28:57 11000 0.1 5.0 65.5 62.6 67.0 9
147 2026-06-16T17:29:02 11000 0.2 5.0 72.2 67.9 73.6 9
148 2026-06-16T17:29:08 11000 0.3 5.0 76.1 72.5 77.0 9
149 2026-06-16T17:29:13 11000 0.4 5.0 78.8 74.2 79.7 9
150 2026-06-16T17:29:19 11000 0.5 5.0 80.6 75.2 81.6 9
151 2026-06-16T17:29:24 11000 0.6 5.0 82.3 76.9 83.3 9
152 2026-06-16T17:29:30 11000 0.7 5.0 83.9 78.8 84.8 10
153 2026-06-16T17:29:35 11000 0.8 5.0 84.8 80.0 85.8 10
154 2026-06-16T17:29:41 11000 0.9 5.0 86.0 82.2 86.7 9
155 2026-06-16T17:29:47 11000 1.0 5.0 86.5 80.5 87.4 9
156 2026-06-16T17:29:52 12000 0.0 5.0 70.2 64.3 79.4 9
157 2026-06-16T17:29:58 12000 0.1 5.0 61.1 60.3 62.3 10
158 2026-06-16T17:30:03 12000 0.2 5.0 61.9 60.0 63.3 10
159 2026-06-16T17:30:09 12000 0.3 5.0 64.9 62.9 66.2 10
160 2026-06-16T17:30:14 12000 0.4 5.0 67.8 65.2 69.1 10
161 2026-06-16T17:30:20 12000 0.5 5.0 70.4 67.8 71.6 10
162 2026-06-16T17:30:25 12000 0.6 5.0 72.2 69.8 73.2 10
163 2026-06-16T17:30:31 12000 0.7 5.0 73.7 71.7 74.6 9
164 2026-06-16T17:30:36 12000 0.8 5.0 75.0 72.7 76.1 9
165 2026-06-16T17:30:42 12000 0.9 5.0 75.9 73.3 76.9 9
166 2026-06-16T17:30:48 12000 1.0 5.0 76.8 73.4 77.9 9
167 2026-06-16T17:30:53 13000 0.0 5.0 68.5 63.1 77.0 10
168 2026-06-16T17:30:59 13000 0.1 5.0 61.1 61.0 61.4 9
169 2026-06-16T17:31:04 13000 0.2 5.0 63.6 61.0 65.5 9
170 2026-06-16T17:31:10 13000 0.3 5.0 67.9 65.1 69.6 9
171 2026-06-16T17:31:15 13000 0.4 5.0 71.0 68.2 72.3 9
172 2026-06-16T17:31:21 13000 0.5 5.0 73.2 70.1 74.3 9
173 2026-06-16T17:31:26 13000 0.6 5.0 74.8 71.9 75.8 9
174 2026-06-16T17:31:32 13000 0.7 5.0 76.2 73.5 77.3 8
175 2026-06-16T17:31:37 13000 0.8 5.0 77.6 75.2 78.5 9
176 2026-06-16T17:31:43 13000 0.9 5.0 78.5 75.9 79.6 8
177 2026-06-16T17:31:48 13000 1.0 5.0 79.6 76.0 80.6 9
178 2026-06-16T17:31:54 14000 0.0 5.0 70.1 64.2 79.7 9
179 2026-06-16T17:32:00 14000 0.1 5.0 60.4 59.0 62.3 9
180 2026-06-16T17:32:05 14000 0.2 5.0 57.8 57.6 58.2 9
181 2026-06-16T17:32:11 14000 0.3 5.0 57.6 57.3 57.8 9
182 2026-06-16T17:32:16 14000 0.4 5.0 58.2 57.6 58.7 9
183 2026-06-16T17:32:22 14000 0.5 5.0 59.2 58.5 59.8 9
184 2026-06-16T17:32:27 14000 0.6 5.0 60.3 59.7 60.9 9
185 2026-06-16T17:32:33 14000 0.7 5.0 61.4 60.7 61.9 9
186 2026-06-16T17:32:38 14000 0.8 5.0 62.3 61.4 62.8 9
187 2026-06-16T17:32:44 14000 0.9 5.0 63.2 62.2 64.0 7
188 2026-06-16T17:32:49 14000 1.0 5.0 64.4 63.3 65.0 9
189 2026-06-16T17:32:55 15000 0.0 5.0 62.1 59.7 65.1 9
190 2026-06-16T17:33:00 15000 0.1 5.0 58.3 57.6 59.1 9
191 2026-06-16T17:33:06 15000 0.2 5.0 57.6 57.2 57.8 9
192 2026-06-16T17:33:11 15000 0.3 5.0 58.4 57.7 59.0 9
193 2026-06-16T17:33:17 15000 0.4 5.0 59.9 58.9 60.7 9
194 2026-06-16T17:33:23 15000 0.5 5.0 61.5 60.3 62.4 9
195 2026-06-16T17:33:28 15000 0.6 5.0 63.1 62.0 63.9 9
196 2026-06-16T17:33:34 15000 0.7 5.0 64.5 63.6 65.3 9
197 2026-06-16T17:33:39 15000 0.8 5.0 65.6 64.9 66.1 9
198 2026-06-16T17:33:45 15000 0.9 5.0 66.6 65.7 67.3 7
199 2026-06-16T17:33:50 15000 1.0 5.0 67.2 66.1 67.7 9

147
soundmeter_log.py Normal file
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#!/usr/bin/env python3
"""
soundmeter_log.py — BLE sound-meter logger + iMX8 tone-server client.
Target: Windows 11 / Python 3.10+.
pip install bleak requests
For each test step:
1. POST /play to tone_server.py on the iMX8
2. Collect dB readings from the RS-95-EM BLE meter for the step duration
3. Write avg / min / max to CSV
BLE packet format
-----------------
Header : bytes[0]=0xD5 bytes[1]=0xF0
dB : bytes[4:6] uint16 big-endian / 10.0
"""
import asyncio
import csv
import datetime
import struct
from pathlib import Path
import requests
from bleak import BleakClient
# ── Configuration ─────────────────────────────────────────────────────────────
IMX8_IP = "10.32.34.103"
IMX8_URL = f"http://{IMX8_IP}:5000"
BLE_MAC = "B0:D2:78:5C:20:07"
BLE_CHAR = "0000fff2-0000-1000-8000-00805f9b34fb"
# ── Test sequence — edit as required ─────────────────────────────────────────
_FREQS = [100, 250, 500, 1000, 2000, 3000, 4000, 5000, 6000, 7000,
8000, 9000, 10000, 11000, 12000, 13000, 14000, 15000]
TEST_STEPS = [
{"freq": freq, "vol": round(vol / 10, 1), "duration": 5.0}
for freq in _FREQS
for vol in range(0, 11) # 0% → 100% in 10% steps
]
# ── Output ────────────────────────────────────────────────────────────────────
_ts = datetime.datetime.now().strftime('%Y%m%d_%H%M%S')
CSV_FILE = Path(f"audio_test_{_ts}.csv")
CSV_HDR = ['timestamp', 'freq_hz', 'vol', 'duration_s',
'avg_db', 'min_db', 'max_db', 'samples']
# ── BLE packet parser ─────────────────────────────────────────────────────────
def _parse_db(data: bytearray) -> float | None:
if len(data) < 6 or data[0] != 0xD5 or data[1] != 0xF0:
return None
return struct.unpack_from('>H', data, 4)[0] / 10.0
# ── HTTP helpers (blocking — run via asyncio.to_thread) ───────────────────────
def _http_play(freq: float, vol: float, duration: float) -> dict:
r = requests.post(
f"{IMX8_URL}/play",
json={"freq": freq, "vol": vol, "duration": duration},
timeout=5,
)
r.raise_for_status()
return r.json()
def _http_stop() -> dict:
r = requests.post(f"{IMX8_URL}/stop", timeout=5)
r.raise_for_status()
return r.json()
# ── Main test runner ──────────────────────────────────────────────────────────
async def run_test():
readings: list[float] = []
def on_notify(_sender, data: bytearray):
db = _parse_db(data)
if db is not None:
readings.append(db)
print(f"Connecting to BLE {BLE_MAC} …")
async with BleakClient(BLE_MAC, timeout=15.0) as client:
print("Connected. Enumerating services…")
for svc in client.services:
print(f" SVC {svc.uuid}")
for ch in svc.characteristics:
props = ','.join(ch.properties)
print(f" CHAR {ch.uuid} [{props}]")
await client.start_notify(BLE_CHAR, on_notify)
print(f"\nSubscribed to {BLE_CHAR}\n")
with CSV_FILE.open('w', newline='') as f:
writer = csv.writer(f)
writer.writerow(CSV_HDR)
for i, step in enumerate(TEST_STEPS, 1):
freq = step['freq']
vol = step['vol']
dur = step['duration']
print(f"[{i}/{len(TEST_STEPS)}] {freq:>5} Hz vol={vol:.2f} dur={dur:.1f}s …", end='', flush=True)
try:
await asyncio.to_thread(_http_play, freq, vol, dur)
except Exception as e:
print(f" ERROR /play: {e}")
continue
readings.clear()
await asyncio.sleep(dur)
snap = list(readings)
if snap:
avg_db = sum(snap) / len(snap)
min_db = min(snap)
max_db = max(snap)
print(f" avg={avg_db:5.1f} dB min={min_db:5.1f} max={max_db:5.1f} n={len(snap)}")
else:
avg_db = min_db = max_db = 0.0
print(" WARNING: no BLE readings received")
ts = datetime.datetime.now().isoformat(timespec='seconds')
writer.writerow([
ts, freq, vol, dur,
f"{avg_db:.1f}", f"{min_db:.1f}", f"{max_db:.1f}", len(snap),
])
f.flush()
await asyncio.sleep(0.5) # brief gap between steps
# Ensure tone is off
try:
await asyncio.to_thread(_http_stop)
except Exception:
pass
await client.stop_notify(BLE_CHAR)
print(f"\nResults saved → {CSV_FILE.resolve()}")
if __name__ == '__main__':
asyncio.run(run_test())

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tone_server.py Normal file
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#!/usr/bin/env python3
"""
tone_server.py — Sine-wave tone HTTP server for iMX8 audio test rig.
Target: iMX8 Debian Bookworm.
pip3 install flask numpy pyaudio (pyaudio already installed)
Endpoints
---------
POST /play { "freq": 1000, "vol": 0.8, "duration": 1.0 }
POST /stop
GET /status
"""
import math
import subprocess
import threading
import numpy as np
import pyaudio
from flask import Flask, jsonify, request
# ── ALSA routing (SGTL5000 on iMX8) ──────────────────────────────────────────
def _alsa_init():
for cmd in [
['amixer', '-c', '0', 'sset', 'Headphone Mux', 'DAC'],
['amixer', '-c', '0', 'sset', 'DAP Mux', 'I2S'],
['amixer', '-c', '0', 'sset', 'Headphone', 'unmute'],
['amixer', '-c', '0', 'sset', 'Lineout', 'unmute'],
]:
try:
subprocess.run(cmd, capture_output=True, timeout=2)
except Exception:
pass
# ── Audio ─────────────────────────────────────────────────────────────────────
SAMPLE_RATE = 44100
BLOCK_FRAMES = 512
_pa = pyaudio.PyAudio()
_lock = threading.Lock()
_state = {
'stream': None,
'timer': None,
'freq': 1000.0,
'vol': 0.0,
'phase': 0,
}
def _callback(in_data, frame_count, time_info, status):
freq = _state['freq']
vol = _state['vol']
phase = _state['phase']
t = (np.arange(frame_count, dtype=np.float64) + phase) / SAMPLE_RATE
buf = (vol * np.sin(2.0 * math.pi * freq * t) * 32767).astype(np.int16)
_state['phase'] = (phase + frame_count) % (SAMPLE_RATE * 100)
return (buf.tobytes(), pyaudio.paContinue)
def _do_stop():
"""Stop active stream and cancel auto-stop timer. Call with _lock held."""
t = _state['timer']
s = _state['stream']
_state['timer'] = None
_state['stream'] = None
if t:
t.cancel()
if s:
try:
s.stop_stream()
s.close()
except Exception:
pass
def _timer_stop():
with _lock:
_do_stop()
# ── Flask app ─────────────────────────────────────────────────────────────────
app = Flask(__name__)
@app.route('/play', methods=['POST'])
def play():
body = request.get_json(force=True) or {}
freq = float(body.get('freq', 1000.0))
vol = max(0.0, min(1.0, float(body.get('vol', 0.8))))
duration = max(0.05, float(body.get('duration', 1.0)))
with _lock:
_do_stop()
_state['freq'] = freq
_state['vol'] = vol
_state['phase'] = 0
s = _pa.open(
rate=SAMPLE_RATE,
channels=1,
format=pyaudio.paInt16,
output=True,
frames_per_buffer=BLOCK_FRAMES,
stream_callback=_callback,
)
s.start_stream()
_state['stream'] = s
t = threading.Timer(duration, _timer_stop)
_state['timer'] = t
t.start()
print(f"[play] {freq:.0f} Hz vol={vol:.2f} dur={duration:.2f}s")
return jsonify({'status': 'ok', 'freq': freq, 'vol': vol, 'duration': duration})
@app.route('/stop', methods=['POST'])
def stop():
with _lock:
_do_stop()
print("[stop]")
return jsonify({'status': 'ok'})
@app.route('/status', methods=['GET'])
def status():
with _lock:
playing = _state['stream'] is not None
return jsonify({'playing': playing, 'freq': _state['freq'], 'vol': _state['vol']})
if __name__ == '__main__':
_alsa_init()
print("Tone server starting on 0.0.0.0:5000")
try:
app.run(host='0.0.0.0', port=5000, threaded=True)
finally:
with _lock:
_do_stop()
_pa.terminate()