def messy_random_concat_test():
s = WAV(african)
max_length = 20e3
def messy_track():
t = 0
temp = 0
while temp < max_length:
duration = 400 + np.random.random() * 3e3
temp += duration
start = 4e3 + (30 - 4) * np.random.random() * 1e3
t |= s[start:start + duration]
return t
L = messy_track() + messy_track()
R = messy_track() + messy_track()
s = L * Repan(0, None) + R * Repan(None, 1)
t = sum([(1 - 8 / 10) * s * Shift(duration=100 * x) *
MovingAverage(width=2 * x + 1) for x in range(5)])
t += 0.6 * s * Downsample(factor=5) * MovingAverage(width=5)
audio = t.mixdown(sample_rate=44100, byte_width=2, max_amplitude=0.2)
play_Audio(audio)
def dummy_reverb_test():
#amp = lambda x:
#wav = WAV(african) + WAV(african)*Amplitude(amp)*Shift(duration=500)
#wav = WAV(african)*SineAM(frequency=0.12, size=0.25)
#wav += WAV(african)*SineAM(frequency=0.12, size=0.25, phase=np.pi)*Shift(duration=500)*FIR(1,1,1,1,1,1,1,1,1)
wav = sum([(1 - 8 / 10) * WAV(african) * Shift(duration=100 * x) *
MovingAverage(2 * x + 1) for x in range(5)])
wav += 0.6 * WAV(african) * Downsample(factor=5) * MovingAverage(5)
audio = wav.mixdown(sample_rate=44100, byte_width=2)
play_Audio(audio, is_wait=True)
def repan_reverb_test():
# TODO these aren't relevant for new pan
wav = sum([
(1 - 8 / 10) * WAV(african) * Shift(duration=100 * x) *
MovingAverage(2 * x + 1) * Pan(*(1, 0.3)[::(1 if x % 2 == 0 else -1)])
for x in range(5)
])
wav += 0.6 * WAV(african) * Pan(
0, None) * Downsample(factor=5) * MovingAverage(5)
wav += 0.6 * WAV(african) * Pan(None, 1)
audio = wav.mixdown(sample_rate=44100, byte_width=2)
play_Audio(audio, is_wait=True)
def chorale_example():
sig = Triangle # Square?
beat = 0.5e3 # 120 bpm
fermata = 0.1 # make fermatas in the melody slightly longer
pause = 0.6 # and breathe for a moment before starting the next phrase
s = sig(
f"r D5 D=2 C#=1 B-13=2 A=1 D E=2 F#-13={2+fermata} r={pause} F#=1 F#=2 F#=1 E=2 F#-13=1 G F#-13=2 E={2+fermata} r={pause} "
f"D+16=1 E=2 F#-13=1 E=2 D+16=1 B-13 C#=2 D+9={2+fermata} r={pause} A'=1 F#-13=2 D+16=1 E=2 G=1 F#-13 E=2 D=3",
beat)
a = sig(
f"r A4 B-16=2 A+16=1 G=2 F#-13=1 F# B-13 A A={2+fermata} r={pause} C#=1 B=2 B=1 B A A A D A A={2+fermata} r={pause} "
f"B=1 A=2 A=1 B-13 A=0.5 G F#=1 B-13 B A#-13 B={2+fermata} r={pause} A=1 A=2 B=1 A=2 A=1 A B-13 A F#-13=3",
beat)
t = sig(
f"r F#4-13 F#=2 F#=1 D=2 D=1 D D C#-13 D={2+fermata} r={pause} C#=1 D+16=2 D+16=1 D C#-13 D E A, D C#-13={2+fermata} r={pause} "
f"F#=1 E=2 D=1 D C#-13 D+16 D G+5 F# F#={2+fermata} r={pause} E=1 F#-13=2 F#=1 E=2 C#-13=1 A B C#-13 D=3",
beat)
b = sig(
f"r D3 B-16 D F# G B-13 D B-16 G A D,={2+fermata} r={pause} A#'-13=1 B=2 A=1 G#-13 A F#-13 C#-13 D F#-13 A={2+fermata} r={pause} "
f"B=1 C#-13=2 D=1 G, A B G E F# B,={2+fermata} r={pause} C#'-13=1 D C# B C#-13 B A D G, A D,=3",
beat)
chorale = s * Pan(25) + b * Pan(-25) + t * Pan(80) + a * Pan(-80)
from gensound.filters import MovingAverage
chorale *= MovingAverage(5) #*Reverse()
#export_test(chorale.mixdown(44100), chorale_example)
chorale.play() # can you spot the parallel octaves?
def test_transform_chain():
s = WAV(african)[10e3:20e3]
t = MovingAverage(5) * Fade(duration=0.5e3)
t *= Gain(Line(0, -10, 3e3) | Line(-10, 0, 5e3))
s *= t
audio = s.mixdown(sample_rate=44100, byte_width=2, max_amplitude=0.2)
play_Audio(audio)
def slice_test():
hihat = WAV(african)[:1061] * MovingAverage(5)
hihat **= 30
part = WAV(african)[5 * 1061:5 * 1061 + 3 * 1061]
part **= 20
s = WAV(african) + part * Shift(4 * 1061) * Gain(-6) - hihat
#s = hihat
audio = s.mixdown(sample_rate=32000, byte_width=2, max_amplitude=0.2)
#play_Audio(audio)
export_test(audio, slice_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 convolution_test():
signal = WAV(african) * Convolution(
forward=False, add=0.3, is_both_ways=False) * MovingAverage(11)
signal -= 0.1 * WAV(african)
audio = signal.mixdown(sample_rate=44100, byte_width=2, max_amplitude=0.2)
play_Audio(audio, is_wait=True)
def reverse_test():
wav = WAV(african) * Reverse() * Downsample(factor=5) * MovingAverage(5)
wav += WAV(african) * Shift(duration=150) * FIR(1, 1, 1, 1, 1, 1, 1, 1, 1)
audio = wav.mixdown(sample_rate=44100, byte_width=2, max_amplitude=0.09)
play_Audio(audio, is_wait=True)