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 IIR_one_pole_filters_test():
s = WAV(african)[10e3:20e3]
s[:5e3] *= IIR_OnePole_LowPass(880)
s[5e3:] *= IIR_OnePole_HighPass(440)
audio = s.mixdown(sample_rate=44100, byte_width=2, max_amplitude=0.2)
#play_Audio(audio)
export_test(audio, IIR_one_pole_filters_test)
def IIR_one_pole_test():
s = WAV(african)[10e3:20e3]
Fc = 880 / 44100
b1 = np.e**(-2 * np.pi * Fc)
s[:, :5e3] *= IIR_OnePole(1 - b1, b1)
audio = s.mixdown(sample_rate=44100, byte_width=2, max_amplitude=0.2)
#play_Audio(audio)
export_test(audio, IIR_one_pole_test)
def next_gen_parse_osc_melody_test():
from gensound import Square, Signal
sig = Square
t = 0.5e3
v1 = sig("C3 Eb F G F Eb " * 10, duration=t)
v2 = sig("Eb4=3 Bb " * 10, duration=t)
v3 = sig("G4=2 A D, " * 10, duration=t)
s = Signal()
s[0] = v2
s[1] = v3
s += 0.5 * v1
export_test(s.mixdown(44100), next_gen_parse_osc_melody_test)
def one_impulse_reverb_test():
from gensound.effects import OneImpulseReverb
s = WAV(african)[10e3:20e3] * OneImpulseReverb(
mix=1.2, num=2000, curve="steep")
s.play(44100, max_amplitude=0.2)
export_test(s.mixdown(44100), one_impulse_reverb_test)
def guitar_amp_test():
s = WAV(gtrcln) * Gain(20) * GuitarAmp_Test(harshness=10, cutoff=4000)
audio = s.mixdown(sample_rate=44100, byte_width=2, max_amplitude=0.2)
export_test(audio, guitar_amp_test)
def test_negative_shift_combine():
s = WAV(african)[10e3:20e3]
s[5e3:] = s[5e3:] * Shift(1e3)
audio = s.mixdown(sample_rate=44100, byte_width=2, max_amplitude=0.2)
export_test(audio, test_negative_shift_combine)
def IIR_general_test():
s = WAV(african)[10e3:20e3]
s[3e3:] *= IIR_general([0, -0.5, 0, 0], [0.25, 0.15, 0.07, 0.03])
audio = s.mixdown(sample_rate=44100, byte_width=2, max_amplitude=0.2)
# play_Audio(audio)
export_test(audio, IIR_general_test)
def IIR_basic_test():
s = WAV(african)[10e3:20e3]
s[5e3:] *= IIR_basic() # y(n) = 0.3*x(n) + 0.7*y(n-1)
audio = s.mixdown(sample_rate=44100, byte_width=2, max_amplitude=0.2)
# play_Audio(audio)
export_test(audio, IIR_basic_test)