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
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
|
# Translator: Michael Scholz <mi-scholz@users.sourceforge.net>
# Created: 02/11/20 02:24:34
# Changed: 14/11/23 03:36:55
# fm_violin(start, dur, freq, amp, *args)
# play_fm_violin(start, dur, freq, amp, *args)
# make_fm_violin(start, dur, freq, amp, *args)
# jc_reverb(*args)
require "ws"
v_opts_str = "fm_violin(start=0.0, dur=1.0, freq=440.0, amp=0.5, *args)
:fm_index = 1.0
:amp_env = [0, 0, 25, 1, 75, 1, 100, 0]
:periodic_vibrato_rate = 5.0
:random_vibrato_rate = 16.0
:periodic_vibrato_amp = 0.0025
:random_vibrato_amp = 0.005
:noise_amount = 0.0
:noise_freq = 1000.0
:ind_noise_freq = 10.0
:ind_noise_amount = 0.0
:amp_noise_freq = 20.0
:amp_noise_amount = 0.0
:gliss_env = [0, 0, 100, 0]
:gliss_amount = 0.0
:fm1_env = [0, 1, 25, 0.4, 75, 0.6, 100, 0]
:fm2_env = [0, 1, 25, 0.4, 75, 0.6, 100, 0]
:fm3_env = [0, 1, 25, 0.4, 75, 0.6, 100, 0]
:fm1_rat = 1.0
:fm2_rat = 3.0
:fm3_rat = 4.0
:fm1_index = false
:fm2_index = false
:fm3_index = false
:base = 1.0
:index_type = :violin"
add_help(:fm_violin,
"#{v_opts_str}
:reverb_amount = 0.01
:degree = kernel_rand(90.0)
:distance = 1.0
Ruby: fm_violin(0, 1, 440, 0.1, :fm_index, 2.0)
Scheme: (fm-violin 0 1 440 0.1 :fm-index 2.0)
Example: with_sound do fm_violin(0, 1, 440, 0.1, :fm_index, 2.0) end")
def fm_violin(start = 0.0, dur = 1.0, freq = 440.0, amp = 0.5, *args)
r = get_args(args, :reverb_amount, 0.01)
d = get_args(args, :degree, kernel_rand(90.0))
s = get_args(args, :distance, 1.0)
fm_vln = make_fm_violin_gen(start, dur, freq, amp, *args)
run_instrument(start, dur, :reverb_amount, r, :degree, d, :distance, s) do
fm_vln.call(0)
end
end
add_help(:play_fm_violin,
"play_#{v_opts_str}
Returns a fm_violin proc with no arg for play(proc).
v = play_fm_violin(0, 1, 440, 0.5)
play(v)
or
play(play_fm_violin(0, 1, 440, 0.5))")
def play_fm_violin(start = 0.0, dur = 1.0, freq = 440.0, amp = 0.5, *args)
fm_vln = make_fm_violin_gen(start, dur, freq, amp, *args)
len = seconds2samples(dur)
lambda do
(len -= 1).positive? and fm_vln.call(0)
end
end
#
# make_fm_violin: returns lambda do |y| ... end
#
add_help(:make_fm_violin,
"make_#{v_opts_str}
Returns a proc with one arg for map_channel()
*args are like fm_violin's
ins = new_sound(:file, \"fmv.snd\", :srate, 22050, :channels, 2)
# proc with one arg
fmv1 = make_fm_violin(0, 1, 440, 0.5)
map_channel(fmv1, 0, 22050, ins, 1)")
def make_fm_violin(start = 0.0, dur = 1.0, freq = 440.0, amp = 1.0, *args)
make_fm_violin_gen(start, dur, freq, amp, *args)
end
def make_fm_violin_gen(start, dur, freq, amp, *args)
fm_index, amp_env, periodic_vibrato_rate, random_vibrato_rate = nil
periodic_vibrato_amp, random_vibrato_amp, noise_amount, noise_freq = nil
ind_noise_freq, ind_noise_amount, amp_noise_freq, amp_noise_amount = nil
gliss_env, gliss_amount = nil
fm1_env, fm2_env, fm3_env, fm1_rat, fm2_rat, fm3_rat = nil
fm1_index, fm2_index, fm3_index, base, index_type = nil
optkey(args, binding,
[:fm_index, 1.0],
[:amp_env, [0, 0, 25, 1, 75, 1, 100, 0]],
[:periodic_vibrato_rate, 5.0],
[:random_vibrato_rate, 16.0],
[:periodic_vibrato_amp, 0.0025],
[:random_vibrato_amp, 0.005],
[:noise_amount, 0.0],
[:noise_freq, 1000.0],
[:ind_noise_freq, 10.0],
[:ind_noise_amount, 0.0],
[:amp_noise_freq, 20.0],
[:amp_noise_amount, 0.0],
[:gliss_env, [0, 0, 100, 0]],
[:gliss_amount, 0.0],
[:fm1_env, [0, 1, 25, 0.4, 75, 0.6, 100, 0]],
[:fm2_env, [0, 1, 25, 0.4, 75, 0.6, 100, 0]],
[:fm3_env, [0, 1, 25, 0.4, 75, 0.6, 100, 0]],
[:fm1_rat, 1.0],
[:fm2_rat, 3.0],
[:fm3_rat, 4.0],
[:fm1_index, false],
[:fm2_index, false],
[:fm3_index, false],
[:base, 1.0],
[:index_type, :violin])
frq_scl = hz2radians(freq)
modulate = fm_index.nonzero?
maxdev = frq_scl * fm_index
vln = (index_type == :violin or index_type == 1)
logfreq = log(freq)
sqrtfreq = sqrt(freq)
index1 = (fm1_index or [PI, maxdev * (vln ? 5.0 : 7.5) / logfreq].min)
index2 = (fm2_index or [PI, maxdev * 3.0 *
(vln ? ((8.5 - logfreq) / (3.0 + freq * 0.001)) :
(15.0 / sqrtfreq))].min)
index3 = (fm3_index or [PI, maxdev * (vln ? 4.0 : 8.0) / sqrtfreq].min)
easy_case = (noise_amount.zero? and
(fm1_env == fm2_env) and
(fm1_env == fm3_env) and
(fm1_rat - fm1_rat.floor).zero? and
(fm2_rat - fm2_rat.floor).zero? and
(fm3_rat - fm3_rat.floor).zero?)
norm = ((easy_case and modulate and 1.0) or index1)
carrier = make_oscil(freq)
fmosc1 = fmosc2 = fmosc3 = false
indf1 = indf2 = indf3 = false
if modulate
indf1 = make_env(fm1_env, norm, dur)
if easy_case
a = [fm1_rat.to_i, index1,
(fm2_rat / fm1_rat).floor, index2,
(fm3_rat / fm1_rat).floor, index3]
coe = partials2polynomial(a)
fmosc1 = make_polyshape(:frequency, fm1_rat * freq, :coeffs, coe)
else
indf2 = make_env(fm2_env, index2, dur)
indf3 = make_env(fm3_env, index3, dur)
if (fm1_rat * freq * 2.0) > mus_srate
fmosc1 = make_oscil(:frequency, freq)
else
fmosc1 = make_oscil(:frequency, fm1_rat * freq)
end
if (fm2_rat * freq * 2.0) > mus_srate
fmosc2 = make_oscil(:frequency, freq)
else
fmosc2 = make_oscil(:frequency, fm2_rat * freq)
end
if (fm3_rat * freq * 2.0) > mus_srate
fmosc3 = make_oscil(:frequency, freq)
else
fmosc3 = make_oscil(:frequency, fm3_rat * freq)
end
end
end
ampf = make_env(amp_env, amp, dur, 0.0, base)
frqf = make_env(gliss_env, gliss_amount * frq_scl, dur)
pervib = make_triangle_wave(periodic_vibrato_rate,
periodic_vibrato_amp * frq_scl)
ranvib = make_rand_interp(random_vibrato_rate,
random_vibrato_amp * frq_scl)
fm_noi = if noise_amount.nonzero?
make_rand(noise_freq, PI * noise_amount)
else
false
end
ind_noi = if ind_noise_amount.nonzero? and ind_noise_freq.nonzero?
make_rand_interp(ind_noise_freq, ind_noise_amount)
else
false
end
amp_noi = if amp_noise_amount.nonzero? and amp_noise_freq.nonzero?
make_rand_interp(amp_noise_freq, amp_noise_amount)
else
false
end
fuzz = modulation = 0.0
ind_fuzz = amp_fuzz = 1.0
if modulate
if easy_case
lambda do |y|
vib = env(frqf) + triangle_wave(pervib) + rand_interp(ranvib)
ind_fuzz = 1.0 + rand_interp(ind_noi) if ind_noi
amp_fuzz = 1.0 + rand_interp(amp_noi) if amp_noi
modulation = env(indf1) * polyshape(fmosc1, 1.0, vib)
env(ampf) * amp_fuzz * oscil(carrier, vib + ind_fuzz * modulation)
end
else
lambda do |y|
fuzz = rand(fm_noi) if fm_noi
vib = env(frqf) + triangle_wave(pervib) + rand_interp(ranvib)
ind_fuzz = 1.0 + rand_interp(ind_noi) if ind_noi
amp_fuzz = 1.0 + rand_interp(amp_noi) if amp_noi
modulation = (env(indf1) * oscil(fmosc1, fm1_rat * vib + fuzz) +
env(indf2) * oscil(fmosc2, fm2_rat * vib + fuzz) +
env(indf3) * oscil(fmosc3, fm3_rat * vib + fuzz))
env(ampf) * amp_fuzz * oscil(carrier, vib + ind_fuzz * modulation)
end
end
else
lambda do |y|
vib = env(frqf) + triangle_wave(pervib) + rand_interp(ranvib)
ind_fuzz = 1.0 + rand_interp(ind_noi) if ind_noi
amp_fuzz = 1.0 + rand_interp(amp_noi) if amp_noi
env(ampf) * amp_fuzz * oscil(carrier, vib + ind_fuzz)
end
end
end
add_help(:jc_reverb,
"jc_reverb(*args)
:volume = 1.0
:delay1 = 0.013
:delay2 = 0.011
:delay3 = 0.015
:delay4 = 0.017
:low_pass = false
:double = false
:amp_env = false
Chowning reverb")
def jc_reverb(*args)
low_pass, volume, amp_env, delay1, delay2, delay3, delay4, double = nil
optkey(args, binding,
[:volume, 1.0],
[:delay1, 0.013],
[:delay2, 0.011],
[:delay3, 0.015],
[:delay4, 0.017],
[:low_pass, false],
[:double, false],
[:amp_env, false])
chan2 = (@channels > 1)
chan4 = (@channels == 4)
if double and chan4
error("%s: not set up for doubled reverb in quad", get_func_name)
end
allpass1 = make_all_pass(-0.7, 0.7, 1051)
allpass2 = make_all_pass(-0.7, 0.7, 337)
allpass3 = make_all_pass(-0.7, 0.7, 113)
comb1 = make_comb(0.742, 4799)
comb2 = make_comb(0.733, 4999)
comb3 = make_comb(0.715, 5399)
comb4 = make_comb(0.697, 5801)
outdel1 = make_delay((delay1 * @srate).round)
outdel2 = (chan2 ? make_delay((delay2 * @srate).round) : false)
outdel3 = ((chan4 or double) ? make_delay((delay3 * @srate).round) : false)
outdel4 = ((chan4 or (double and chan2)) ?
make_delay((delay4 * @srate).round) : false)
envA = if amp_env
make_env(:envelope, amp_env,
:scaler, volume,
:duration, ws_duration(@revfile) + @decay_time)
else
false
end
comb_sum_1 = comb_sum = 0.0
out_frample = Vct.new(@channels)
run_reverb() do |ho, i|
allpass_sum = all_pass(allpass3, all_pass(allpass2,
all_pass(allpass1, ho)))
comb_sum_2, comb_sum_1 = comb_sum_1, comb_sum
comb_sum = (comb(comb1, allpass_sum) + comb(comb2, allpass_sum) +
comb(comb3, allpass_sum) + comb(comb4, allpass_sum))
all_sums = if low_pass
0.25 * (comb_sum + comb_sum_2) + 0.5 * comb_sum_1
else
comb_sum
end
delA = delay(outdel1, all_sums)
if double
delA += delay(outdel3, all_sums)
end
if envA
volume = env(envA)
end
out_frample[0] = volume * delA
if chan2
delB = delay(outdel2, all_sums)
if double
delB += delay(outdel4, all_sums)
end
out_frample[1] = volume * delB
if chan4
out_frample[2] = volume * delay(outdel3, all_sums)
out_frample[3] = volume * delay(outdel4, all_sums)
end
end
out_frample
end
end
# v.rb ends here
|
