Hallo
Ich würde gerne eine Mehrkanallichtorgel aus einem ESP (NodeMCU) bauen.
Über ein Microphone und einen Vorverstärker bekomme ich ein schönes
Signal auf den analogen eingang.
Dann habe ich diese FFT Lib für Arduine gefunden:
https://github.com/kosme/arduinoFFT
Wenn ich diese installiere und ds erste Beispiel kompiliere bekomme ich
folgende Ausgabe:
1 | Data:
|
2 | 0.000000 575.0000
|
3 | 0.010000 573.0000
|
4 | 0.020000 573.0000
|
5 | 0.030000 573.0000
|
6 | 0.040000 573.0000
|
7 | 0.050000 574.0000
|
8 | 0.060000 573.0000
|
9 | 0.070000 573.0000
|
10 | 0.080000 574.0000
|
11 | 0.090000 573.0000
|
12 | 0.100000 573.0000
|
13 | 0.110000 574.0000
|
14 | 0.120000 574.0000
|
15 | 0.130000 573.0000
|
16 | 0.140000 573.0000
|
17 | 0.150000 574.0000
|
18 | 0.160000 574.0000
|
19 | 0.170000 573.0000
|
20 | 0.180000 574.0000
|
21 | 0.190000 574.0000
|
22 | 0.200000 574.0000
|
23 | 0.210000 573.0000
|
24 | 0.220000 574.0000
|
25 | 0.230000 573.0000
|
26 | 0.240000 573.0000
|
27 | 0.250000 573.0000
|
28 | 0.260000 574.0000
|
29 | 0.270000 573.0000
|
30 | 0.280000 573.0000
|
31 | 0.290000 574.0000
|
32 | 0.300000 574.0000
|
33 | 0.310000 573.0000
|
34 | 0.320000 574.0000
|
35 | 0.330000 573.0000
|
36 | 0.340000 573.0000
|
37 | 0.350000 573.0000
|
38 | 0.360000 574.0000
|
39 | 0.370000 573.0000
|
40 | 0.380000 573.0000
|
41 | 0.390000 574.0000
|
42 | 0.400000 574.0000
|
43 | 0.410000 574.0000
|
44 | 0.420000 574.0000
|
45 | 0.430000 573.0000
|
46 | 0.440000 574.0000
|
47 | 0.450000 573.0000
|
48 | 0.460000 573.0000
|
49 | 0.470000 574.0000
|
50 | 0.480000 574.0000
|
51 | 0.490000 573.0000
|
52 | 0.500000 574.0000
|
53 | 0.510000 574.0000
|
54 | 0.520000 573.0000
|
55 | 0.530000 573.0000
|
56 | 0.540000 574.0000
|
57 | 0.550000 573.0000
|
58 | 0.560000 573.0000
|
59 | 0.570000 574.0000
|
60 | 0.580000 574.0000
|
61 | 0.590000 573.0000
|
62 | 0.600000 573.0000
|
63 | 0.610000 574.0000
|
64 | 0.620000 574.0000
|
65 | 0.630000 573.0000
|
66 |
|
67 | Weighed data:
|
68 | 0.000000 46.0000
|
69 | 0.010000 47.1498
|
70 | 0.020000 51.0661
|
71 | 0.030000 57.5501
|
72 | 0.040000 66.5373
|
73 | 0.050000 78.0744
|
74 | 0.060000 91.6400
|
75 | 0.070000 107.5060
|
76 | 0.080000 125.5976
|
77 | 0.090000 145.0806
|
78 | 0.100000 166.4157
|
79 | 0.110000 189.5021
|
80 | 0.120000 213.4954
|
81 | 0.130000 238.0319
|
82 | 0.140000 263.6498
|
83 | 0.150000 290.2283
|
84 | 0.160000 316.5427
|
85 | 0.170000 342.1945
|
86 | 0.180000 368.7144
|
87 | 0.190000 394.0532
|
88 | 0.200000 418.5562
|
89 | 0.210000 441.2100
|
90 | 0.220000 464.0917
|
91 | 0.230000 483.8272
|
92 | 0.240000 502.6378
|
93 | 0.250000 519.5282
|
94 | 0.260000 535.2629
|
95 | 0.270000 546.8974
|
96 | 0.280000 557.1042
|
97 | 0.290000 565.8352
|
98 | 0.300000 571.0509
|
99 | 0.310000 572.6723
|
100 | 0.320000 573.6718
|
101 | 0.330000 570.0560
|
102 | 0.340000 564.8494
|
103 | 0.350000 557.1042
|
104 | 0.360000 547.8518
|
105 | 0.370000 534.3304
|
106 | 0.380000 519.5282
|
107 | 0.390000 503.5150
|
108 | 0.400000 484.6715
|
109 | 0.410000 464.0917
|
110 | 0.420000 441.9800
|
111 | 0.430000 417.8271
|
112 | 0.440000 394.0532
|
113 | 0.450000 368.0721
|
114 | 0.460000 342.1945
|
115 | 0.470000 316.5427
|
116 | 0.480000 290.2283
|
117 | 0.490000 263.6498
|
118 | 0.500000 238.4473
|
119 | 0.510000 213.4954
|
120 | 0.520000 189.1720
|
121 | 0.530000 166.4157
|
122 | 0.540000 145.3338
|
123 | 0.550000 125.3787
|
124 | 0.560000 107.5060
|
125 | 0.570000 91.7999
|
126 | 0.580000 78.0744
|
127 | 0.590000 66.5373
|
128 | 0.600000 57.5501
|
129 | 0.610000 51.1553
|
130 | 0.620000 47.2321
|
131 | 0.630000 45.8400
|
132 |
|
133 | Computed Real values:
|
134 | 0.000000 19555.8592
|
135 | 1.000000 -8493.9713
|
136 | 2.000000 89.2134
|
137 | 3.000000 35.0940
|
138 | 4.000000 18.2295
|
139 | 5.000000 10.3298
|
140 | 6.000000 7.9184
|
141 | 7.000000 4.4343
|
142 | 8.000000 4.6349
|
143 | 9.000000 3.1994
|
144 | 10.000000 1.8459
|
145 | 11.000000 2.8261
|
146 | 12.000000 1.3312
|
147 | 13.000000 1.8464
|
148 | 14.000000 0.1647
|
149 | 15.000000 0.1844
|
150 | 16.000000 1.6448
|
151 | 17.000000 0.7074
|
152 | 18.000000 0.8313
|
153 | 19.000000 -1.5270
|
154 | 20.000000 3.8300
|
155 | 21.000000 -2.3959
|
156 | 22.000000 0.6179
|
157 | 23.000000 1.1442
|
158 | 24.000000 0.4359
|
159 | 25.000000 -0.3513
|
160 | 26.000000 2.2832
|
161 | 27.000000 -1.7308
|
162 | 28.000000 0.7287
|
163 | 29.000000 0.6154
|
164 | 30.000000 0.3317
|
165 | 31.000000 -3.1536
|
166 | 32.000000 5.5547
|
167 | 33.000000 -3.1536
|
168 | 34.000000 0.3317
|
169 | 35.000000 0.6154
|
170 | 36.000000 0.7287
|
171 | 37.000000 -1.7308
|
172 | 38.000000 2.2832
|
173 | 39.000000 -0.3513
|
174 | 40.000000 0.4359
|
175 | 41.000000 1.1442
|
176 | 42.000000 0.6179
|
177 | 43.000000 -2.3959
|
178 | 44.000000 3.8300
|
179 | 45.000000 -1.5270
|
180 | 46.000000 0.8313
|
181 | 47.000000 0.7074
|
182 | 48.000000 1.6448
|
183 | 49.000000 0.1844
|
184 | 50.000000 0.1647
|
185 | 51.000000 1.8464
|
186 | 52.000000 1.3312
|
187 | 53.000000 2.8261
|
188 | 54.000000 1.8459
|
189 | 55.000000 3.1994
|
190 | 56.000000 4.6349
|
191 | 57.000000 4.4343
|
192 | 58.000000 7.9184
|
193 | 59.000000 10.3298
|
194 | 60.000000 18.2295
|
195 | 61.000000 35.0940
|
196 | 62.000000 89.2134
|
197 | 63.000000 -8493.9713
|
198 |
|
199 | Computed Imaginary values:
|
200 | 0.000000 0.0000
|
201 | 1.000000 -416.8295
|
202 | 2.000000 8.1664
|
203 | 3.000000 6.1173
|
204 | 4.000000 4.0941
|
205 | 5.000000 0.2422
|
206 | 6.000000 6.5146
|
207 | 7.000000 -0.9746
|
208 | 8.000000 1.4082
|
209 | 9.000000 2.5616
|
210 | 10.000000 1.6822
|
211 | 11.000000 0.1255
|
212 | 12.000000 3.1566
|
213 | 13.000000 -1.4378
|
214 | 14.000000 2.0756
|
215 | 15.000000 0.1924
|
216 | 16.000000 1.8017
|
217 | 17.000000 2.1487
|
218 | 18.000000 -6.2768
|
219 | 19.000000 3.3331
|
220 | 20.000000 0.2313
|
221 | 21.000000 3.0225
|
222 | 22.000000 -1.7985
|
223 | 23.000000 0.7784
|
224 | 24.000000 1.5868
|
225 | 25.000000 -1.6438
|
226 | 26.000000 1.2746
|
227 | 27.000000 -0.9256
|
228 | 28.000000 0.8268
|
229 | 29.000000 0.2817
|
230 | 30.000000 -0.9432
|
231 | 31.000000 0.7302
|
232 | 32.000000 0.0000
|
233 | 33.000000 -0.7302
|
234 | 34.000000 0.9432
|
235 | 35.000000 -0.2817
|
236 | 36.000000 -0.8268
|
237 | 37.000000 0.9256
|
238 | 38.000000 -1.2746
|
239 | 39.000000 1.6438
|
240 | 40.000000 -1.5868
|
241 | 41.000000 -0.7784
|
242 | 42.000000 1.7985
|
243 | 43.000000 -3.0225
|
244 | 44.000000 -0.2313
|
245 | 45.000000 -3.3331
|
246 | 46.000000 6.2768
|
247 | 47.000000 -2.1487
|
248 | 48.000000 -1.8017
|
249 | 49.000000 -0.1924
|
250 | 50.000000 -2.0756
|
251 | 51.000000 1.4378
|
252 | 52.000000 -3.1566
|
253 | 53.000000 -0.1255
|
254 | 54.000000 -1.6822
|
255 | 55.000000 -2.5616
|
256 | 56.000000 -1.4082
|
257 | 57.000000 0.9746
|
258 | 58.000000 -6.5146
|
259 | 59.000000 -0.2422
|
260 | 60.000000 -4.0941
|
261 | 61.000000 -6.1173
|
262 | 62.000000 -8.1664
|
263 | 63.000000 416.8295
|
264 |
|
265 | Computed magnitudes:
|
266 | 0.000000Hz 19555.8592
|
267 | 1.562500Hz 8504.1928
|
268 | 3.125000Hz 89.5863
|
269 | 4.687500Hz 35.6232
|
270 | 6.250000Hz 18.6836
|
271 | 7.812500Hz 10.3326
|
272 | 9.375000Hz 10.2538
|
273 | 10.937500Hz 4.5402
|
274 | 12.500000Hz 4.8441
|
275 | 14.062500Hz 4.0985
|
276 | 15.625000Hz 2.4975
|
277 | 17.187500Hz 2.8289
|
278 | 18.750000Hz 3.4258
|
279 | 20.312500Hz 2.3402
|
280 | 21.875000Hz 2.0822
|
281 | 23.437500Hz 0.2665
|
282 | 25.000000Hz 2.4395
|
283 | 26.562500Hz 2.2622
|
284 | 28.125000Hz 6.3316
|
285 | 29.687500Hz 3.6662
|
286 | 31.250000Hz 3.8370
|
287 | 32.812500Hz 3.8570
|
288 | 34.375000Hz 1.9016
|
289 | 35.937500Hz 1.3839
|
290 | 37.500000Hz 1.6456
|
291 | 39.062500Hz 1.6809
|
292 | 40.625000Hz 2.6149
|
293 | 42.187500Hz 1.9628
|
294 | 43.750000Hz 1.1021
|
295 | 45.312500Hz 0.6768
|
296 | 46.875000Hz 0.9999
|
297 | 48.437500Hz 3.2371
|
298 |
|
299 | 28.736887
|
300 |
|
301 | Soft WDT reset
|
302 |
|
303 | ctx: cont
|
304 | sp: 3ffef8d0 end: 3ffefac0 offset: 01b0
|
305 |
|
306 | >>>stack>>>
|
307 | 3ffefa80: 3ffeea70 3ffee578 3ffee778 40201e70
|
308 | 3ffefa90: 3fffdad0 00000000 3ffeea70 3ffeea94
|
309 | 3ffefaa0: 3fffdad0 00000000 3ffeea8c 40202e48
|
310 | 3ffefab0: feefeffe feefeffe 3ffeeaa0 40100114
|
311 | <<<stack<<<
|
312 |
|
313 | ets Jan 8 2013,rst cause:2, boot mode:(3,6)
|
314 |
|
315 | load 0x4010f000, len 1384, room 16
|
316 | tail 8
|
317 | chksum 0x2d
|
318 | csum 0x2d
|
319 | v09f0c112
|
320 | ~ld
|
Bevor ich mich jetzt mit den einzelnen gewollten Ausgaben beschäftige,
würde ichgerne wissen, warum sich der WDT immer einschaltet?
Jemand ne Idee?
Danke und Gruß