Selamat siang kawan! Saya hanya seorang musisi pemula, tetapi saya memiliki pengalaman dalam pemrograman. Dan mengapa tidak mengambil beberapa data dan mencoba mengeluarkan audio (seperti memvisualisasikan, hanya ... membatasi)?
Taschemta, rencananya adalah ini:
- Temukan data
- Datang dengan cara mengubahnya menjadi suara
- Sesuaikan parameter konverter agar lebih indah
- Masih kuat? kebagian 1
Menangkap sinar kosmik
Saya mengambil data dari situs . Secara khusus, saya menggunakan data "Pengukuran variasi" sinar kosmik untuk periode default - 31-10 Maret, 04 - Tien-Shan dan Tien-Shan Underground (sehingga Anda masih bisa melacak beberapa korelasi atau harmoni). Dan untuk perubahan data, saya mengunduh pengukuran "Radiasi Gamma", juga untuk periode default - kali ini pada 5.04-10.04.
Data Tien-Shan terlihat seperti ini:
31.03.2020 00:00:00 3813 5504 5187 5251 4637 4071 4568 4998 4922 4858 4956 4271 3997 4358 4715 4077 4160 3980
31.03.2020 00:01:00 3653 5308 5413 5371 4691 4090 4617 5139 5009 4762 5172 4309 4208 4387 4923 4248 4092 4108
31.03.2020 00:02:00 3763 5309 5292 5298 4588 4105 4608 5072 5070 4745 4834 4158 3918 4284 5115 4233 4011 3972
…
09.04.2020 23:57:00 3855 5308 5239 5190 4531 4063 4537 5035 5084 4863 5089 4261 4122 4395 5394 4186 4167 4078
09.04.2020 23:58:00 3955 5492 5416 5406 4458 4037 4474 5122 4942 4733 5168 4330 4026 4357 5283 4059 4174 3857
09.04.2020 23:59:00 3811 5378 5334 5121 4472 3955 4334 4992 4940 4646 4822 4378 4137 4195 4880 4049 4002 3817
Bagan Tien-Shan:
Struktur data Bawah Tanah Tien-Shan identik dengan struktur di atas, tetapi nilainya sendiri jauh lebih rendah:
31.03.2020 00:00:00 20 32 29 26 20 20 17 14 16
31.03.2020 00:01:00 14 16 17 27 20 27 9 15 7
31.03.2020 00:02:00 13 22 16 22 15 18 12 15 11
…
09.04.2020 23:57:00 17 19 20 27 20 17 11 18 16
09.04.2020 23:58:00 14 33 19 19 18 16 15 16 9
09.04.2020 23:59:00 16 31 23 25 21 22 16 10 14
Bagan Bawah Tanah Tien-Shan:
Dan data radiasi gamma terlihat seperti ini:
05.04.2020 00:00:02 20640 5345 4726 3532 2365 2118 1261 891 655 334 252 194
05.04.2020 00:00:12 21160 5295 4666 3526 2365 2138 1250 852 627 309 235 190
05.04.2020 00:00:22 19581 5189 4562 3536 2401 2130 1229 820 618 324 243 172
…
09.04.2020 23:59:37 22381 5134 4505 3429 2274 2044 1223 823 569 275 205 154
09.04.2020 23:59:47 21917 5186 4577 3448 2273 2044 1166 803 563 293 214 165
09.04.2020 23:59:58 20930 5275 4644 3561 2382 2148 1248 868 609 289 232 176
Grafik Mu1 titik radio:
Jika saya menggunakan data lain, saya akan memperbarui deklarasi sumber konstan (paragraf di atas)
Percobaan pertama
. . , , Audacity . ! , - .
, Audacity float -1.00000 1.00000, -1/1 = 0dB — , .
, csv, , (\s\t\n)+, , .
Audacity
raw Audacity :
1:
;This is a comment and will be ignored.
0.07100 0.14056 0.20727 0.26978 0.32682 0.37724 0.42001 0.45428 0.47933 0.49468 0.50000 0.49518 0.48034 0.45575 0.42193 0.37957 0.32951 0.27277 0.21050 0.14397 0.07452 0.00356 -0.06747 -0.13713 -0.20402 -0.26677 -0.32411 -0.37489 -0.41807 -0.45278 -0.47831 -0.49415 -0.49997 -0.49566 -0.48131 -0.45721 -0.42384 -0.38188 -0.33218 -0.27575 -0.21373 -0.14738 -0.07804 -0.00712 0.06394 0.13370 0.20076 0.26375 0.32139 0.37252 0.41611 0.45125 0.47726 0.49359 0.49992 0.49612 0.48226 0.45864 0.42571 0.38416 0.33483 0.27871 0.21694 0.15078 0.08156 0.01068 -0.06040 -0.13027 -0.19749 -0.26072 -0.31866 -0.37014 -0.41412 -0.44971 -0.47618 -0.49301 -0.49984 -0.49655 -0.48319 -0.46004 -0.42757 -0.38643 -0.33747 -0.28166 -0.22015 -0.15417 -0.08507 -0.01425
:
0.00000 -0.00000
0.10000 -0.10000
0.20000 -0.20000
0.30000 -0.30000
0.40000 -0.40000
0.50000 -0.50000
0.60000 -0.60000
0.70000 -0.70000
0.80000 -0.80000
0.90000 -0.90000
1.00000 -1.00000
, ( , — ).
** , . , — , , — 0dB.
PoC — Proof of Concept. — -, .
. .
, Audacity , float [-1.00000-1.00000]. : , , , .
( F12), , .
. Find & Replace : (.+?\t){x}(.+?)\t.+?\n->\2,`, — + 1 ( ).
csv :
3813,3790,3801,3833,3674,3822,3639,3848,3866,3794,3747,3938,3823,3989,3963,3852,3836,3694,3883,3748,3802,3884,3790,3684,3895,3872,3885,4011,3844,3901,3713,3870,3868,3772,3866,3939,3856,3720,3640,3929,3905,...
, :
a = [1, 2, 3, 4, 5]
function parse_array(arr) {
console.log(“Min: “ + Math.min(...arr));
console.log(“Max: “ + Math.max(...arr));
console.log(“Avg: “ + arr.reduce((a, b) => a + b) / arr.length);
}
> parse_array(a)
1
5
3
, , Tien-Shan:
1: Min: 3514; Max: 4192; Avg: 3844.4135528815705
2: Min: 4934; Max: 5741; Avg: 5358.663125307817
3: Min: 4945; Max: 5703; Avg: 5313.77323577007
4: Min: 4882; Max: 5725; Avg: 5281.23640329276
5: Min: 4219; Max: 4953; Avg: 4598.3294167311615
6: Min: 3712; Max: 4426; Avg: 4075.323506648843
7: Min: 4168; Max: 4966; Avg: 4530.841131358616
8: Min: 4576; Max: 5344; Avg: 4973.967775979737
9: Min: 4608; Max: 5478; Avg: 4976.573559417435
10: Min: 4459; Max: 5261; Avg: 4795.212692605362
11: Min: 4574; Max: 5380; Avg: 4989.718215718005
12: Min: 3944; Max: 4757; Avg: 4331.33553788785
13: Min: 0 (3771); Max: 4428; Avg: 4095.4295363399706
14: Min: 0 (4084); Max: 4865; Avg: 4407.586716386407
15: Min: 0 (4384); Max: 5394; Avg: 4866.680292689791
16: Min: 0 (3837); Max: 4703; Avg: 4238.36325898825
17: Min: 0 (3786); Max: 4661; Avg: 4204.146837402378
18: Min: 0 (3753); Max: 4596; Avg: 4152.545697600788
* , duh.
, float [-1.00000-1.00000] :
a = [1, 2, 3, 4, 5]
function parse_array(arr) {
arr = arr.filter(a => a != 0);
min = Math.min(...arr);
max = Math.max(...arr);
avg = arr.reduce((a, b) => a + b) / arr.length;
console.log("Min: " + min + "; Max: " + max + "; Avg: " + avg);
floatify = function (a) {
if (a == 0) return 0;
if (a > avg) {
return (a - avg) / (max - avg);
} else {
return (a - min) / (avg - min) - 1;
}
console.log(arr.map(a => floatify(a)));
}
> parse_array(a)
Min: 1; Max: 5; Avg: 3
[-1, -0.5, 0, 0.5, 1]
:
-0.09502086396735898
-0.579290635757401
-0.24635516765174703
-0.1646346436621775
-0.1313410968516121
-0.03448714249360363
Audacity Tools → Sample Data Import…
- ( Tien-Shan):
. , .
.
()
. , . , :
Timestamp FractionalDate UncorrectedCountRate[cts/min] CorrectedCountRate[cts/min] Pressure[mbar]
2020-03-11T00:00:00Z 71.0000000 7150 6702 991.00
2020-03-11T00:30:00Z 71.0208333 7205 6749 990.91
2020-03-11T01:00:00Z 71.0416667 7214 6750 990.75
2020-03-11T01:30:00Z 71.0625000 7250 6776 990.61
2020-03-11T02:00:00Z 71.0833333 7275 6792 990.45
, .
:
( → )
: detune,
Overtone
, , - . , . Overtone ( ).
:
- Ovetone. : Java, Clojure, Supercollider, Leiningen, JackD jackd, pulseaudio alsa. !
Clojure Leiningen.
, , .
Clojure
, . , , .
Clojure, . . , lein repl ( ), tone.clj, , repl-.
:
(demo 0.5 (sin-osc 440))
, . , .
lein repl
ovetone
user=> (use ‘overtone.live)
user=> (load-file “tone.clj”)
? ! ? - . , …
, “”. / , .
:
user=> (def a [1,2,3])
#'user/a
user=> (prn-str a)
"[1 2 3]\n"
user=> (spit "stored-array.dat" (prn-str a))
nil
user=> (slurp "stored-array.dat")
"[1 2 3]\n"
* , Clojure, overtone.live —
, Clojure. , , , , — .
UPD: , \n , :
user=> (defn trim [input] (clojure.string/replace input #"\n" ""))
#'user/trim
, , (\n, …):
user=> (trim (slurp “stored-array.dat”))
“[1 2 3]”
, , overtone. , .
, , overtone, .
— Shadertoy.com
? . , !
:
vec2 mainSound(float time) {
return vec2(sin(6.2831 * 440.0 * time) * exp(-2.0 * time));
}
**(… … — )
— shadertoy , :
:
vec2 mainSound(float time) {
vec2 result = vec2(sin(6.2831 * 440.0 * time) * exp(-2.0 * time));
if (time > 1.0) {
result = vec2(sin(6.2831 * 262.0 * time) * exp(-2.0 * (time - 1.0)));
}
return result;
}
Shadertoy , !
, — :
- , .
struct Note {
float frequency;
float offset;
float duration;
};
- (
return) :
float noteFreq(Note note, float time) {
return cos(6.2831 * note.frequency * time) * exp(-1.0/note.duration * (time - note.offset));
}
, “ ”, ( ; 12 ).
float nearestNote(float value) {
for (int i = 1; i < scale.length(); i++) {
if (scale[i] > value) {
return scale[i - 1];
}
}
return scale[0];
}
vec2 mainSound(float time) {...} .
. , , boilerplate .
. -, , .
, , ( ). , “” , : 2:1 (4:1) 3:1 . , , . :
const float leadTempoRatio = 2.0;
const float midTempoRatio = 2.0/3.0;
const float bassTempoRatio = 1.0;
const float[] dataLead = float[] (5504.0, 5308.0, 5309.0, 5289.0, 5225.0, 5208.0, 5190.0, 5250.0, 5362.0, 5486.0, 5314.0, 5467.0, 5292.0, 5305.0, 5167.0, 5423.0, 5402.0, 5280.0, 5420.0, 5428.0, 5260.0, 5306.0, 5379.0, 5283.0, 5234.0, 5340.0, 5252.0, 5568.0, 5476.0, 5248.0, 5494.0, 5480.0, 5230.0, 5609.0, 5323.0, 5392.0, 5304.0, 5478.0, 5321.0, 5435.0, 5179.0, 5444.0, 5289.0, 5413.0, 5275.0, 5389.0, 5500.0, 5221.0, 5276.0, 5356.0, 5250.0, 5414.0, 5269.0, 5269.0, 5216.0, 5512.0, 5410.0, 5300.0, 5426.0, 5433.0, 5156.0, 5482.0, 5281.0, 5377.0, 5279.0, 5317.0, 5111.0, 5455.0, 5435.0, 5239.0, 5353.0, 5342.0, 5519.0, 5242.0, 5281.0, 5226.0, 5374.0, 5190.0, 5232.0, 5292.0, 5466.0, 5298.0, 5265.0, 5521.0, 5435.0, 5252.0, 5245.0, 5506.0, 5491.0, 5343.0, 5390.0, 5287.0, 5349.0, 5332.0, 5515.0, 5358.0, 5369.0, 5396.0, 5187.0, 5308.0, 5322.0, 5207.0, 5355.0, 5388.0, 5265.0, 5217.0, 5254.0, 5494.0, 5306.0, 5380.0, 5352.0, 5297.0, 5395.0, 5387.0, 5410.0, 5448.0, 5301.0, 5182.0, 5465.0, 5327.0, 5617.0, 5362.0, 5417.0, 5470.0, 5549.0, 5283.0, 5425.0, 5419.0, 5307.0, 5405.0, 5286.0, 5228.0, 5400.0, 5426.0, 5378.0, 5396.0, 5514.0, 5393.0, 5314.0, 5318.0, 5431.0, 5236.0, 5257.0, 5239.0, 5447.0, 5439.0, 5399.0, 5484.0, 5455.0, 5226.0, 5586.0, 5491.0, 5338.0, 5390.0, 5275.0, 5278.0, 5474.0, 5332.0, 5320.0, 5355.0, 5387.0, 5435.0, 5406.0, 5196.0, 5363.0, 5500.0, 5466.0, 5443.0, 5248.0, 5510.0, 5342.0, 5270.0, 5123.0, 5485.0, 5318.0, 5469.0, 5249.0, 5330.0, 5406.0, 5543.0, 5203.0, 5281.0, 5395.0, 5416.0, 5249.0, 5252.0, 5372.0, 5397.0, 5327.0, 5260.0, 5430.0, 5334.0, 5309.0, 5435.0, 5381.0, 5324.0, 5399.0, 5504.0, 5320.0, 5458.0);
const float[] dataMid = float[] (3813.0, 3653.0, 3763.0, 3790.0, 3801.0, 3833.0, 3674.0, 3822.0, 3639.0, 3848.0, 3866.0, 3794.0, 3747.0, 3938.0, 3823.0, 3989.0, 3963.0, 3852.0, 3836.0, 3694.0, 3883.0, 3748.0, 3802.0, 3884.0, 3790.0, 3684.0, 3895.0, 3872.0, 3885.0, 4011.0, 3844.0, 3901.0, 3713.0, 3870.0, 3868.0, 3772.0, 3866.0, 3939.0, 3856.0, 3720.0, 3640.0, 3929.0, 3905.0, 3811.0, 3811.0, 3899.0, 3699.0, 3868.0, 3892.0, 3746.0, 3878.0, 3778.0, 3894.0, 3740.0, 3709.0, 3710.0, 3812.0, 3856.0, 3811.0, 3935.0, 3850.0, 3859.0, 3800.0, 3748.0, 3725.0, 3814.0, 3897.0, 3745.0, 3763.0, 3833.0, 3964.0, 3770.0, 3846.0, 3776.0, 3945.0, 3791.0, 3799.0, 3709.0, 3922.0, 3825.0, 3804.0, 3869.0, 3829.0, 3770.0, 3838.0, 3820.0, 3734.0, 3979.0, 3765.0, 3764.0, 3857.0, 3861.0, 3869.0, 3787.0, 3963.0, 3780.0, 3847.0, 3759.0, 3857.0, 3782.0, 3711.0, 3843.0, 3909.0, 3839.0, 3811.0, 3874.0, 3849.0, 3883.0, 3925.0, 3752.0, 3847.0, 3731.0, 3824.0, 3905.0, 3901.0, 3926.0, 3897.0, 3751.0, 3896.0, 3752.0, 3854.0, 3936.0, 3767.0, 3812.0, 3933.0, 3889.0, 3808.0, 3703.0, 3948.0, 3883.0, 3872.0, 3762.0, 3870.0, 3899.0, 3818.0, 3900.0, 3774.0, 3951.0, 3818.0, 3893.0, 3821.0, 3823.0, 3801.0, 3833.0, 3744.0, 3769.0, 3864.0, 3923.0, 3974.0, 3810.0);
const float[] dataBass = float[] (20.0, 14.0, 13.0, 14.0, 10.0, 23.0, 16.0, 18.0, 6.0, 16.0, 18.0, 7.0, 15.0, 13.0, 14.0, 22.0, 12.0, 14.0, 12.0, 14.0, 19.0, 18.0, 8.0, 16.0, 13.0, 12.0, 21.0, 17.0, 22.0, 19.0, 11.0, 16.0, 16.0, 24.0, 16.0, 20.0, 18.0, 20.0, 17.0, 22.0, 23.0, 14.0, 17.0, 16.0, 23.0, 14.0, 15.0, 10.0, 12.0, 14.0, 20.0, 22.0, 14.0, 14.0, 20.0, 24.0, 14.0, 23.0, 20.0, 25.0, 14.0, 17.0, 21.0, 21.0, 18.0, 18.0, 13.0, 11.0, 21.0, 22.0, 16.0, 13.0, 24.0, 26.0, 29.0, 27.0, 18.0, 23.0, 15.0, 18.0, 8.0, 17.0, 24.0, 14.0, 12.0, 18.0, 16.0, 15.0, 25.0, 12.0, 19.0, 11.0, 18.0, 25.0, 21.0, 16.0, 19.0, 24.0, 19.0, 14.0);
. — ( , ). ( ):
float fixLead(float value) {
return nearestNote(value / 8.0);
}
float fixMid(float value) {
return nearestNote(value / 10.0);
}
float fixBass(float value) {
return nearestNote(value * 7.0);
}
— — , .
— ( ), — .
. , . , copy-paste, :)
const float[] scale = float[] (16.35, 18.35, 20.60, 21.83, 24.50, 27.50, 30.87, 32.70, 36.71, 41.20, 43.65, 49.00, 55.00, 61.74, 65.41, 73.42, 82.41, 87.31, 98.00, 110.00, 123.47, 130.81, 146.83, 164.81, 174.61, 196.00, 220.00, 246.94, 261.63, 293.66, 329.63, 349.23, 392.00, 440.00, 493.88, 523.25, 587.33, 659.25, 698.46, 783.99, 880.00, 987.77, 1046.50, 1174.66, 1318.51, 1396.91, 1567.98, 1760.00, 1975.53, 2093.00, 2349.32, 2637.02, 2793.83, 3135.96, 3520.00, 3951.07, 4186.01, 4698.63, 5274.04, 5587.65, 6271.93, 7040.00, 7902.13);
C0 B8, , 8 7 . ( , ).
“” fix*() .
: , , .
, mainSound(float time) {...} , noteFreq().
float result = 0.0;
for (int i = 0; i < dataLead.length(); i++) {
Note noteLead = Note(fixLead(dataLead[i]), float(i) + 2.0, 1.0/4.0);
if (time > noteLead.offset) {
float amplitude = noteFreq(noteLead, time);
result += amplitude;
}
}
return vec2(result);
. . .
Shadertoy — , - . . . .
Sound. . . DRY, , . , .
, Sound Common, :
vec2 mainSound(float time) {
return _mainSound(time);
}
( Buf A):
void mainImage( out vec4 fragColor, in vec2 fragCoord ) {
_mainSound(iTime);
fragColor = vec4(FRAG_COLOR);
}
— , .
(iTime time). “ ”. , “” ( — ; — ; — ):
float result = 0.0;
vec4 frag_color = vec4(0.0);
frag_color.a = 1.0;
for (int i = 0; i < dataLead.length(); i++) {
Note noteLead = Note(fixLead(dataLead[i]), float(i) + 2.0, 1.0/4.0);
if (time > noteLead.offset) {
float amplitude = noteFreq(noteLead, time);
result += amplitude;
frag_color.b += amplitude;
}
}
FRAG_COLOR = frag_color;
return vec2(result);
, . , , , .
, , , - , .
** Shadertoy . , .
() . !
( ):
.
, wav-.
** ...
Terima kasih atas minat Anda! Saya tidak dapat menjamin bahwa teks tersebut ditulis dengan jelas, tetapi saya dapat berjanji untuk mengunyah semua momen yang tidak dapat dipahami (yang saya sendiri mengerti) dalam komentar.
Semuanya ️
UPD: Dalam Suara shadertoy, sebuah tab dapat langsung memanggilmainSound()dari sebuahCommontab. Oleh karena itu,Soundbisa kosong, tetapi digantiCommonnama_mainSound()menjadimainSound().
Kami juga tidak membutuhkannya bufA, karena ini adalah lapisan tambahan dan kami dapat menyebutnya mainSound()langsung dari Imagetab, dan di dalamnya kami sudah dapat bekerja dengan piksel yang diterima, tanpa merender ke tekstur perantara.
Semuanya ada di tautan yang sama.