def multichannel_test():
s = Sine(frequency=midC(1))
s[1] = Sine(frequency=midC(-3))
s[2] = Sine(frequency=midC(-7))
s[3] = Sine(frequency=midC(4))
audio = s.mixdown(sample_rate=11025, byte_width=2, max_amplitude=0.2)
#play_Audio(audio)
export_test(audio, multichannel_test)
def after_test_1():
signal = Sine(frequency=midC(-7), duration=6e3)
s2 = Signal.concat(
*[Sine(frequency=midC(k - 4), duration=1e3) for k in range(6)])
signal += s2
print(signal)
audio = signal.mixdown(sample_rate=44100, byte_width=2, max_amplitude=0.2)
play_Audio(audio, is_wait=True)
def after_test_2():
# test ** as repeat
s = Signal.concat(Sine(midC(-7 + 12), 1e3), Sine(midC(-3), 1e3),
Sine(midC(-8 + 12), 1e3), Sine(midC(-1), 1e3))
s **= 5
s += WAV(african)
print(s)
audio = s.mixdown(sample_rate=44100, byte_width=2, max_amplitude=0.2)
play_Audio(audio, is_wait=True)
def additive_complex_sound_test():
def s(f, duration):
return sum([
(1 / i**1.5) * Sine(frequency=f * i, duration=duration) * ADSR(
(0.01e3) * (i), 0.8, 0.5 + (1 / (i + 2)), 0.02e3)
for i in range(1, 20)
])
freqs = [
midC(-3),
midC(1),
midC(-4),
midC(4),
midC(6),
midC(2),
midC(-1),
midC(11)
] * 2
duration = 1e3
t = Signal.concat(*[s(f, duration) for f in freqs])
audio = t.mixdown(sample_rate=44100, byte_width=2, max_amplitude=0.2)
#play_Audio(audio)
export_test(audio, additive_complex_sound_test)
def t1():
t = Triangle(frequency=midC(-1.5),
duration=5000) * MovingAverage(21) * SineAM(frequency=0.8,
size=0.3)
env = lambda n: (n / 1000) if n < 1000 else (0.5 + np.sin(2 * np.pi * 2 * n
/ 1000) / 2)
env = lambda n: (0.5 + np.sin(2 * np.pi * 2 * n) / 2)
env = lambda n: (0 if n == 0 else np.sin(n) * (min(n, 1)))
env = lambda n: np.e**(-0.3 + 0.3 * (min(n, 0.3)) / 0.3)
t += 0.01 * Sawtooth(frequency=midC(-1.5), duration=5000) * Amplitude(env)
audio = t.mixdown(sample_rate=44100, byte_width=2, max_amplitude=0.01)
play_Audio(audio)
def test_ADSR():
notes = [-3, -6, 1, 4, 3, -1, 1, 9, 8, 4, 6] * 2
melody = Signal.concat(*[
Square(frequency=midC(notes[i]), duration=0.5e3) * ADSR(attack=0.03e3,
decay=0.1e3,
sustain=0.8,
release=0.02e3,
hold=0.1e3)
for i in range(len(notes))
])
melody[1] = Signal.concat(*[
Square(frequency=midC(notes[(i + 2) % (len(notes))]), duration=0.5e3) *
ADSR(attack=0.03e3, decay=0.1e3, sustain=0.8, release=0.02e3, hold=0)
for i in range(len(notes))
])
melody *= MovingAverage(5)
audio = melody.mixdown(sample_rate=24000, byte_width=2, max_amplitude=0.2)
#play_Audio(audio)
export_test(audio, test_ADSR)
def after_test_3():
b1 = 1.2e3
b2 = 1e3
b3 = 0.8e3
b4 = 1.4e3
p1 = [-6, -3, -8, -1, 1]
p2 = [9, 4, 6, 8, 11]
p3 = [12 + 1, 12 + 4, 12 + 6, 12 + 8, 12 + 1, 12 + 3, 12 + 11]
p4 = [-12 + 2, -12 - 1, -12 + 1, -12 - 3]
s = Signal.concat(*[Sine(midC(p), b1) for p in p1])**5
s += 0.8 * Signal.concat(*[Sine(midC(p), b2) for p in p2])**6 * Shift(000)
s += 0.3 * Signal.concat(*[Sine(midC(p), b3) for p in p3])**6
s += 2 * Signal.concat(*[Sine(midC(p), b4) for p in p4])**5
s *= MovingAverage(11)
print(s)
audio = s.mixdown(sample_rate=44100, byte_width=2, max_amplitude=0.2)
play_Audio(audio, is_wait=False)
def melody_test():
step = 500
notes = (midC(0), midC(-3), midC(-7), midC(4), midC(7), midC(-1), midC(2))
t = sum([
Sine(frequency=f, duration=step + 100) *
Fade(is_in=True, duration=step * 5) *
Fade(is_in=False, duration=step + 100) * Shift(duration=(1 + i) * step)
for (i, f) in enumerate(notes)
])
audio = t.mixdown(sample_rate=11025, byte_width=2)
play_Audio(audio)
def solfege_test_1():
num_notes = 20
duration = 0.5e3
silence = 0.5e3
starting_note = 0
Note = Triangle
notes = [Note(starting_note, duration) * Extend(silence)]
for i in range(num_notes):
starting_note += np.random.randint(-4, 5)
notes.append(Note(midC(starting_note), duration) * Extend(silence))
s = Signal.concat(*notes)
audio = s.mixdown(sample_rate=22050, byte_width=2, max_amplitude=0.2)
play_Audio(audio, is_wait=False)