def generate_pure(self):
a = self.preprocess()
self.sound_objects = []
for generator in self.generators.values():
lso = generator.generate(a)
self.sound_objects += lso
self.output = sounds.render(self.sound_objects, a.rate)
self.output.samples = (Fx().normalize().reverb())(self.output.samples)
def mutate_chorus(so: SoundObject):
samps = (Fx().chorus(random.uniform(0, 1), random.uniform(0, 1), [[
random.uniform(40, 60),
random.uniform(0, 1),
random.uniform(0.2, 0.3),
random.uniform(1, 5),
random.choice(["s", "t"])
] for _ in range(random.randrange(1, 5))]))(so.samples)
return SoundObject(samps)
def play(self, note: Note, smpRt: int):
b_wave = np.array([])
freq = lr.midi_to_hz(note.pitch)
oscs = floor(note.duration * freq)
for _ in range(oscs):
l = round(0.005 * smpRt)
p = random.randint(0, len(self.sample) - l)
p_wave = self.sample[p:p + l]
b_wave = np.concatenate((b_wave, p_wave))
l = round(0.005 * smpRt)
p = random.randint(0, len(self.sample) - l)
wave = self.sample[p:p + l]
wave = np.tile(wave, oscs)
b_wave = (Fx().gain(-10))(b_wave)
wave = wave + b_wave
factor = (len(wave) / smpRt) / note.duration
wave = (Fx().speed(factor).highpass(100).lowpass(2000))(wave)
wave = envl.adsr(len(wave))(wave)
return wave
def play(self, note: Note, smpRt: int) -> np.ndarray:
event, c_pitch = self.get_event(note.pitch)
ratio = (len(event.data) / smpRt) / note.duration
ratio = np.clip(ratio, 0.5, 100)
shift = note.pitch - c_pitch
wave = lr.effects.harmonic(event.data)
wave = (Fx().pitch(shift * 100).tempo(ratio).highpass(
lr.midi_to_hz(note.pitch)))(wave)
wave = envl.adsr(len(wave))(wave)
return wave
def play(self, note: Note, smpRt):
wave = None
shift = math.inf
for _ in range(self.limit):
twave = self.gen_wave(note.duration, smpRt)
tc_pitch = get_strong_freq(twave)
if tc_pitch == -math.inf: continue
tshift = note.pitch - tc_pitch
if abs(tshift) < abs(shift):
wave = twave
shift = tshift
if abs(shift) < 30: break
wave = (Fx().pitch(shift * 100).highpass(lr.midi_to_hz(
note.pitch)))(wave)
wave = envl.adsr(len(wave))(wave)
return wave
def render(self, piece: Piece, smpRt: int, out: str):
wave = np.array([])
for j,line in enumerate(piece.lines):
line_wave = np.array([])
for i,note in enumerate(line.notes):
print(f"Rendering line {j+1} of {len(piece.lines)}. Rendering at {round((i+1) / len(line.notes) * 100, 2)}% ({exceptions.n_exceptions()} exceptions) ", end='\r')
try:
pad = pad = [0] * round(note.start*smpRt)
note_wave = line.instrument.play(note, smpRt)
note_wave = np.concatenate((pad, note_wave))
line_wave = join_waves(line_wave, note_wave)
except Exception as e:
#traceback.print_exc()
exceptions.save_exception(e)
wave = join_waves(wave, line_wave)
assert len(wave) > 0
wave = (
Fx()
.normalize()
.reverb()
)(wave)
sf.write(out, wave, smpRt, subtype='PCM_24')
print("\nDone Rendering.")
return Audio(wave, smpRt)
def get_strong_freq(wave):
pwave = (Fx().highpass(100))(wave)
spect = lr.amplitude_to_db(np.abs(lr.stft(pwave)))
profile = np.mean(spect, axis=1)
bins = lr.fft_frequencies()
return round(lr.hz_to_midi(stats.mode(bins, profile)), 2)
def mutate_compand(so: SoundObject):
samps = (Fx().compand(random.uniform(0.1, 1.0), random.uniform(0.1, 1.0),
random.uniform(0.5, 2.0), random.uniform(-20, -3),
random.uniform(-20, -3),
random.uniform(-20, -3)))(so.samples)
return SoundObject(samps)
def mutate_bandreject(so: SoundObject):
samps = (Fx().bandreject(random.uniform(20, 20e3),
random.uniform(0.1, 2.0)))(so.samples)
return SoundObject(samps)
def mutate_reverb(so: SoundObject):
samps = (Fx().reverb(random.uniform(0, 100), random.uniform(0, 100),
random.uniform(0, 100), random.uniform(0, 100),
random.uniform(0, 100)))(so.samples)
return SoundObject(samps)