Buenas!!
Que tal?
He estado leyendo preguntas del foro y he leido la rms.
Se que es el valor medio de intensidad sonora de una canción, pero lo que no se es como calcularlo.
He visto que hay programas que te lo calculan y tal. Pero lo que me gustaria saber a mi es si se puede calcular haciendo la media de las intensidades que te dan cuando analizas el espectro de una canción.
Por ejemplo, si yo abro audacity y analizo el espectro de una canción obtengo esto:
frecuencia (hz) volumen (db)
86,132813 2,902193
172,265625 0,592774
258,398438 -5,398856
344,531250 -10,077141
430,664063 -11,280236
516,796875 -10,787752
602,929688 -12,960656
689,062500 -12,567210
775,195313 -12,075145
861,328125 -11,986051
947,460938 -11,560631
1033,593750 -9,782216
1119,726563 -13,285234
1205,859375 -15,892054
1291,992188 -17,131218
1378,125000 -17,091036
1464,257813 -18,224770
1550,390625 -15,465095
1636,523438 -16,063700
1722,656250 -18,624283
1808,789063 -18,649000
1894,921875 -19,609076
1981,054688 -20,423853
2067,187500 -18,817484
2153,320313 -18,090862
2239,453125 -18,101402
2325,585938 -17,977518
2411,718750 -18,764236
2497,851563 -19,141275
2583,984375 -18,678862
2670,117188 -18,618221
2756,250000 -19,567789
2842,382813 -20,122030
2928,515625 -20,509184
3014,648438 -19,402122
3100,781250 -18,153011
3186,914063 -18,817652
3273,046875 -18,743084
3359,179688 -18,722849
3445,312500 -19,070894
3531,445313 -19,549902
3617,578125 -20,146679
3703,710938 -18,887539
3789,843750 -18,712193
3875,976563 -20,176918
3962,109375 -19,233519
4048,242188 -19,327005
4134,375000 -20,524483
4220,507813 -20,303476
4306,640625 -19,718744
4392,773438 -17,556179
4478,906250 -18,582779
4565,039063 -21,695745
4651,171875 -21,585934
4737,304688 -20,121788
4823,437500 -22,158297
4909,570313 -22,479166
4995,703125 -22,049599
5081,835938 -20,279425
5167,968750 -21,334045
5254,101563 -23,331924
5340,234375 -23,658623
5426,367188 -23,326698
5512,500000 -22,680147
5598,632813 -23,381117
5684,765625 -25,444466
5770,898438 -25,823103
5857,031250 -25,020294
5943,164063 -24,418165
6029,296875 -25,412041
6115,429688 -26,128479
6201,562500 -25,145088
6287,695313 -26,177544
6373,828125 -26,227221
6459,960938 -25,534401
6546,093750 -25,669754
6632,226563 -26,045406
6718,359375 -23,899557
6804,492188 -22,558008
6890,625000 -25,451540
6976,757813 -26,484270
7062,890625 -26,191820
7149,023438 -26,129698
7235,156250 -25,934217
7321,289063 -26,880665
7407,421875 -26,188940
7493,554688 -24,304609
7579,687500 -25,213911
7665,820313 -27,874784
7751,953125 -28,206261
7838,085938 -24,510071
7924,218750 -22,389639
8010,351563 -24,093126
8096,484375 -24,506296
8182,617188 -22,596256
8268,750000 -21,926590
8354,882813 -23,933357
8441,015625 -26,767000
8527,148438 -28,365843
8613,281250 -27,977638
8699,414063 -28,113773
8785,546875 -28,564156
8871,679688 -27,892578
8957,812500 -28,888111
9043,945313 -29,710964
9130,078125 -28,361059
9216,210938 -28,523697
9302,343750 -29,470253
9388,476563 -29,777294
9474,609375 -30,066595
9560,742188 -29,904654
9646,875000 -29,793118
9733,007813 -31,522661
9819,140625 -32,091076
9905,273438 -31,946363
9991,406250 -32,001461
10077,539063 -32,100693
10163,671875 -32,159527
10249,804688 -31,696331
10335,937500 -32,268906
10422,070313 -32,278328
10508,203125 -31,735130
10594,335938 -31,903898
10680,468750 -31,436506
10766,601563 -30,171883
10852,734375 -32,452602
10938,867188 -33,363770
11025,000000 -32,570412
11111,132813 -33,976719
11197,265625 -34,073135
11283,398438 -33,675224
11369,531250 -33,950069
11455,664063 -34,617188
11541,796875 -34,535648
11627,929688 -34,686153
11714,062500 -36,138508
11800,195313 -35,156235
11886,328125 -33,602833
11972,460938 -33,223915
12058,593750 -34,143734
12144,726563 -35,218742
12230,859375 -36,154770
12316,992188 -35,271713
12403,125000 -33,468155
12489,257813 -32,924450
12575,390625 -33,842854
12661,523438 -36,007019
12747,656250 -36,533325
12833,789063 -35,874928
12919,921875 -35,850060
13006,054688 -36,442127
13092,187500 -36,626846
13178,320313 -36,563530
13264,453125 -36,400131
13350,585938 -36,910919
13436,718750 -37,347511
13522,851563 -37,872135
13608,984375 -37,601124
13695,117188 -37,585445
13781,250000 -38,397648
13867,382813 -37,943333
13953,515625 -36,399521
14039,648438 -37,159168
14125,781250 -37,753357
14211,914063 -38,572872
14298,046875 -38,565998
14384,179688 -38,465931
14470,312500 -38,498131
14556,445313 -38,224651
14642,578125 -38,180420
14728,710938 -37,780926
14814,843750 -38,903515
14900,976563 -39,814312
14987,109375 -39,881733
15073,242188 -39,750877
15159,375000 -39,559330
15245,507813 -39,345314
15331,640625 -39,440022
15417,773438 -39,465435
15503,906250 -39,863453
15590,039063 -40,630161
15676,171875 -40,842857
15762,304688 -40,962074
15848,437500 -41,444603
15934,570313 -42,107754
16020,703125 -41,711411
16106,835938 -40,750015
16192,968750 -41,750832
16279,101563 -42,957016
16365,234375 -42,420815
16451,367188 -43,157974
16537,500000 -44,669918
16623,632813 -45,354519
16709,765625 -44,501678
16795,898438 -44,386154
16882,031250 -45,276688
16968,164063 -44,476807
17054,296875 -43,665993
17140,429688 -43,480644
17226,562500 -44,687889
17312,695313 -45,631073
17398,828125 -46,200413
17484,960938 -45,753971
17571,093750 -44,177197
17657,226563 -43,308147
17743,359375 -45,193005
17829,492188 -45,316982
17915,625000 -45,316456
18001,757813 -46,861660
18087,890625 -46,526478
18174,023438 -46,254406
18260,156250 -46,370613
18346,289063 -45,204739
18432,421875 -44,787113
18518,554688 -45,155720
18604,687500 -46,202324
18690,820313 -46,711231
18776,953125 -47,372929
18863,085938 -47,398796
18949,218750 -47,509903
19035,351563 -48,238319
19121,484375 -49,086060
19207,617188 -48,607441
19293,750000 -48,455738
19379,882813 -48,370728
19466,015625 -48,690136
19552,148438 -48,469414
19638,281250 -47,870461
19724,414063 -48,357910
19810,546875 -48,365616
19896,679688 -45,901581
19982,812500 -44,923141
20068,945313 -44,461002
20155,078125 -46,007675
20241,210938 -47,216526
20327,343750 -47,203735
20413,476563 -47,192921
20499,609375 -47,935410
20585,742188 -48,632435
20671,875000 -50,775589
20758,007813 -51,007252
20844,140625 -53,134296
20930,273438 -59,379269
21016,406250 -71,492340
21102,539063 -75,115532
21188,671875 -75,095367
21274,804688 -74,198143
21360,937500 -74,448875
21447,070313 -75,209846
21533,203125 -74,906288
21619,335938 -73,682846
21705,468750 -73,437042
21791,601563 -74,020744
21877,734375 -74,875366
21963,867188 -75,153709
si yo hago el promedio de las intensidades, obtengo el rms que es lo que dice la definición de este o se calcula de otra forma?
Muchas gracias!!!
Que tal?
He estado leyendo preguntas del foro y he leido la rms.
Se que es el valor medio de intensidad sonora de una canción, pero lo que no se es como calcularlo.
He visto que hay programas que te lo calculan y tal. Pero lo que me gustaria saber a mi es si se puede calcular haciendo la media de las intensidades que te dan cuando analizas el espectro de una canción.
Por ejemplo, si yo abro audacity y analizo el espectro de una canción obtengo esto:
frecuencia (hz) volumen (db)
86,132813 2,902193
172,265625 0,592774
258,398438 -5,398856
344,531250 -10,077141
430,664063 -11,280236
516,796875 -10,787752
602,929688 -12,960656
689,062500 -12,567210
775,195313 -12,075145
861,328125 -11,986051
947,460938 -11,560631
1033,593750 -9,782216
1119,726563 -13,285234
1205,859375 -15,892054
1291,992188 -17,131218
1378,125000 -17,091036
1464,257813 -18,224770
1550,390625 -15,465095
1636,523438 -16,063700
1722,656250 -18,624283
1808,789063 -18,649000
1894,921875 -19,609076
1981,054688 -20,423853
2067,187500 -18,817484
2153,320313 -18,090862
2239,453125 -18,101402
2325,585938 -17,977518
2411,718750 -18,764236
2497,851563 -19,141275
2583,984375 -18,678862
2670,117188 -18,618221
2756,250000 -19,567789
2842,382813 -20,122030
2928,515625 -20,509184
3014,648438 -19,402122
3100,781250 -18,153011
3186,914063 -18,817652
3273,046875 -18,743084
3359,179688 -18,722849
3445,312500 -19,070894
3531,445313 -19,549902
3617,578125 -20,146679
3703,710938 -18,887539
3789,843750 -18,712193
3875,976563 -20,176918
3962,109375 -19,233519
4048,242188 -19,327005
4134,375000 -20,524483
4220,507813 -20,303476
4306,640625 -19,718744
4392,773438 -17,556179
4478,906250 -18,582779
4565,039063 -21,695745
4651,171875 -21,585934
4737,304688 -20,121788
4823,437500 -22,158297
4909,570313 -22,479166
4995,703125 -22,049599
5081,835938 -20,279425
5167,968750 -21,334045
5254,101563 -23,331924
5340,234375 -23,658623
5426,367188 -23,326698
5512,500000 -22,680147
5598,632813 -23,381117
5684,765625 -25,444466
5770,898438 -25,823103
5857,031250 -25,020294
5943,164063 -24,418165
6029,296875 -25,412041
6115,429688 -26,128479
6201,562500 -25,145088
6287,695313 -26,177544
6373,828125 -26,227221
6459,960938 -25,534401
6546,093750 -25,669754
6632,226563 -26,045406
6718,359375 -23,899557
6804,492188 -22,558008
6890,625000 -25,451540
6976,757813 -26,484270
7062,890625 -26,191820
7149,023438 -26,129698
7235,156250 -25,934217
7321,289063 -26,880665
7407,421875 -26,188940
7493,554688 -24,304609
7579,687500 -25,213911
7665,820313 -27,874784
7751,953125 -28,206261
7838,085938 -24,510071
7924,218750 -22,389639
8010,351563 -24,093126
8096,484375 -24,506296
8182,617188 -22,596256
8268,750000 -21,926590
8354,882813 -23,933357
8441,015625 -26,767000
8527,148438 -28,365843
8613,281250 -27,977638
8699,414063 -28,113773
8785,546875 -28,564156
8871,679688 -27,892578
8957,812500 -28,888111
9043,945313 -29,710964
9130,078125 -28,361059
9216,210938 -28,523697
9302,343750 -29,470253
9388,476563 -29,777294
9474,609375 -30,066595
9560,742188 -29,904654
9646,875000 -29,793118
9733,007813 -31,522661
9819,140625 -32,091076
9905,273438 -31,946363
9991,406250 -32,001461
10077,539063 -32,100693
10163,671875 -32,159527
10249,804688 -31,696331
10335,937500 -32,268906
10422,070313 -32,278328
10508,203125 -31,735130
10594,335938 -31,903898
10680,468750 -31,436506
10766,601563 -30,171883
10852,734375 -32,452602
10938,867188 -33,363770
11025,000000 -32,570412
11111,132813 -33,976719
11197,265625 -34,073135
11283,398438 -33,675224
11369,531250 -33,950069
11455,664063 -34,617188
11541,796875 -34,535648
11627,929688 -34,686153
11714,062500 -36,138508
11800,195313 -35,156235
11886,328125 -33,602833
11972,460938 -33,223915
12058,593750 -34,143734
12144,726563 -35,218742
12230,859375 -36,154770
12316,992188 -35,271713
12403,125000 -33,468155
12489,257813 -32,924450
12575,390625 -33,842854
12661,523438 -36,007019
12747,656250 -36,533325
12833,789063 -35,874928
12919,921875 -35,850060
13006,054688 -36,442127
13092,187500 -36,626846
13178,320313 -36,563530
13264,453125 -36,400131
13350,585938 -36,910919
13436,718750 -37,347511
13522,851563 -37,872135
13608,984375 -37,601124
13695,117188 -37,585445
13781,250000 -38,397648
13867,382813 -37,943333
13953,515625 -36,399521
14039,648438 -37,159168
14125,781250 -37,753357
14211,914063 -38,572872
14298,046875 -38,565998
14384,179688 -38,465931
14470,312500 -38,498131
14556,445313 -38,224651
14642,578125 -38,180420
14728,710938 -37,780926
14814,843750 -38,903515
14900,976563 -39,814312
14987,109375 -39,881733
15073,242188 -39,750877
15159,375000 -39,559330
15245,507813 -39,345314
15331,640625 -39,440022
15417,773438 -39,465435
15503,906250 -39,863453
15590,039063 -40,630161
15676,171875 -40,842857
15762,304688 -40,962074
15848,437500 -41,444603
15934,570313 -42,107754
16020,703125 -41,711411
16106,835938 -40,750015
16192,968750 -41,750832
16279,101563 -42,957016
16365,234375 -42,420815
16451,367188 -43,157974
16537,500000 -44,669918
16623,632813 -45,354519
16709,765625 -44,501678
16795,898438 -44,386154
16882,031250 -45,276688
16968,164063 -44,476807
17054,296875 -43,665993
17140,429688 -43,480644
17226,562500 -44,687889
17312,695313 -45,631073
17398,828125 -46,200413
17484,960938 -45,753971
17571,093750 -44,177197
17657,226563 -43,308147
17743,359375 -45,193005
17829,492188 -45,316982
17915,625000 -45,316456
18001,757813 -46,861660
18087,890625 -46,526478
18174,023438 -46,254406
18260,156250 -46,370613
18346,289063 -45,204739
18432,421875 -44,787113
18518,554688 -45,155720
18604,687500 -46,202324
18690,820313 -46,711231
18776,953125 -47,372929
18863,085938 -47,398796
18949,218750 -47,509903
19035,351563 -48,238319
19121,484375 -49,086060
19207,617188 -48,607441
19293,750000 -48,455738
19379,882813 -48,370728
19466,015625 -48,690136
19552,148438 -48,469414
19638,281250 -47,870461
19724,414063 -48,357910
19810,546875 -48,365616
19896,679688 -45,901581
19982,812500 -44,923141
20068,945313 -44,461002
20155,078125 -46,007675
20241,210938 -47,216526
20327,343750 -47,203735
20413,476563 -47,192921
20499,609375 -47,935410
20585,742188 -48,632435
20671,875000 -50,775589
20758,007813 -51,007252
20844,140625 -53,134296
20930,273438 -59,379269
21016,406250 -71,492340
21102,539063 -75,115532
21188,671875 -75,095367
21274,804688 -74,198143
21360,937500 -74,448875
21447,070313 -75,209846
21533,203125 -74,906288
21619,335938 -73,682846
21705,468750 -73,437042
21791,601563 -74,020744
21877,734375 -74,875366
21963,867188 -75,153709
si yo hago el promedio de las intensidades, obtengo el rms que es lo que dice la definición de este o se calcula de otra forma?
Muchas gracias!!!
