-
Notifications
You must be signed in to change notification settings - Fork 2
/
gen.lua
87 lines (75 loc) · 2.53 KB
/
gen.lua
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
--Generators
--Elihu Garrett (2015)
local proAudio = require "proAudioRt"
local Gen = {}
if not proAudio.create() then os.exit() end
function Gen.play(tono,sample, pitch, duration, volumeL, volumeR,dis)
if type(pitch) == "number" then pitch = pitch
else pitch = pitch:byte(1,-1)
end
local scale = 2^(pitch/tono)
local sound = proAudio.soundLoop(sample, volumeL, volumeR, dis, scale)
proAudio.sleep(duration)
proAudio.soundStop(sound or 0.1)
end
--Still under development
function Gen.playChord(tono, sample, pitch, duration, volumeL, volumeR, note1, note2)
local scale = 2^(pitch/tono)
local sound = proAudio.soundLoop(sample,volumeL, volumeR, 0, scale)
local sound1 = proAudio.soundLoop(sample,volumeL, volumeR, 0, scale+note1)
local sound2 = proAudio.soundLoop(sample,volumeL, volumeR, 0, scale+note2)
proAudio.sleep(duration)
proAudio.soundStop(sound)
proAudio.soundStop(sound1)
proAudio.soundStop(sound2)
end
---------------------------------------------
--Sound generators
function Gen.vS(freq, duration, sampleRate,f,m,r)
local data = {}
for i = 1,duration*sampleRate do
data[i] = math.random((i*math.cos(math.sin(f)))*(freq/math.random(m,r))/sampleRate,-19)
end
return proAudio.sampleFromMemory(data, sampleRate)
end
function Gen.vX(freq, duration, sampleRate,q,w)
local data = {}
for i = 1,duration*sampleRate do
data[i] = math.tan( ((i*(math.pi*math.cosh(q)))*freq/sampleRate)*math.cos(w))
end
return proAudio.sampleFromMemory(data, sampleRate)
end
function Gen.vR(freq, duration, sampleRate,v)
local data = {}
for i = 1,duration*sampleRate do
data[i] = math.cos( ((i*math.pi)*freq/sampleRate)*math.pi*v)
end
return proAudio.sampleFromMemory(data, sampleRate)
end
function Gen.vP(freq, duration , sampleRate)
local data = {}
for i = 1, duration*sampleRate do
data[i] = math.atan2(-4,6)* (i*math.pi)*(freq/(sampleRate)*math.pi)
end
return proAudio.sampleFromMemory(data, sampleRate)
end
function Gen.vM (freq, duration, sampleRate,x,y,z)
local data = {}
for i = 1, duration*sampleRate do
data[i] = math.tan(x*(math.cosh(math.pi,y)*(i*math.pi)*(freq/(sampleRate)*z)))
end
return proAudio.sampleFromMemory(data, sampleRate)
end
--Special oscillator
--Example: osc()%10
function Gen.osc(freq, duration, sampleRate)
freq = freq or 440
duration = duration or 1
sampleRate = sampleRate or 4100
local data = {}
for i = 1, duration*sampleRate do
data[i] = math.cos((math.pi*freq/sampleRate)*math.pi)
end
return proAudio.sampleFromMemory(data, sampleRate)
end
return Gen