def test_sandwich_board(self):
l = dsp.read('tests/sounds/linux.wav')
g = dsp.read('tests/sounds/guitar1s.wav')
f = fx.crossover(l, dsp.win('phasor', 0, 1), dsp.rand(0.1, 0.3),
dsp.win('rnd', 0, 1)).graph(fontsize=50,
label='Weird FX')
ws = Waveset(g).substitute('sine').graph(fontsize=50,
label='Waveset Manipulation')
ps = oscs.Pulsar2d(freq=dsp.rand(10, 80),
pulsewidth=shapes.win('hann')).play(2).graph(
fontsize=50, label='Pulsar Synthesis')
wt = shapes.win('hann',
length=0.4) * shapes.win('sine') * shapes.win('rnd')
wt.graph(
'tests/renders/graph_sandwich_board.png',
insets=[ps, ws, f],
width=900,
height=340,
label='Pippi: Computer Music With Python',
stroke=30,
fontsize=30,
)
# For the readme
shutil.copy('tests/renders/graph_sandwich_board.png', 'banner.png')
def test_shape_pulsar(self):
dsp.seed()
for i in range(4):
wts = [shapes.wt('sine', length=1) for _ in range(3)]
wins = [shapes.win('sine', length=1) for _ in range(3)]
wins = [w * dsp.win('hann') for w in wins]
amp = shapes.win('sine', length=1)
pw = dsp.win(shapes.win('sine', length=1), 0.1, 1)
freq = dsp.win(shapes.win('sine', length=1), 20, 260)
grid = dsp.win(shapes.win('sine', length=1), 0.001, 0.75)
gl = dsp.win(shapes.win('sine', length=1), 0.03, 0.3)
win = shapes.win('sine', length=1) * dsp.win('hann')
out = oscs.Pulsar2d(
wts,
windows=wins,
freq=freq,
pulsewidth=pw,
amp=amp,
).play(dsp.rand(0.2, 1)).cloud(length=20,
window=win,
grainlength=gl,
grid=grid,
speed=dsp.win(
shapes.win('sine', length=1),
0.03, 2),
spread='rnd',
jitter='rnd')
out.write('tests/renders/shape_pulsar%s.wav' % i)
def test_shape_win(self):
dsp.seed()
wt = shapes.win('sine',
length=10,
density='rnd',
stability='rnd',
periodicity='rnd')
amp = shapes.win('sine',
length=10,
density='rnd',
stability='rnd',
periodicity='rnd')
wt = wt * amp
wt.graph('tests/renders/shape_win.png')
def test_shape_win(self):
dsp.seed()
for i in range(4):
wt = shapes.win('sine',
length=10,
density='rnd',
stability='rnd',
periodicity='rnd')
amp = shapes.win('sine',
length=10,
density='rnd',
stability='rnd',
periodicity='rnd')
wt = wt * amp
wt.graph('tests/renders/shape_win%s.png' % i, width=1024)
def test_shape_synth(self):
dsp.seed()
out = shapes.synth('sine',
minfreq=80,
maxfreq=800,
stability=0.99,
length=10)
amp = shapes.win('sine', length=10)
out = out * amp
out.write('tests/renders/shape_synth.wav')
def test_create_tukey(self):
length = 10
shape = dsp.win(shapes.win('sine', length=3), 0, 0.5)
chord = tune.chord('i9', octave=2)
out = dsp.buffer(length=length)
for freq in chord:
freq = dsp.wt('sinc', freq, freq*4)
l = Tukey(freq=freq, shape=shape).play(length)
l = l.pan(dsp.rand())
out.dub(l)
out = fx.norm(out, 0.8)
out.write('tests/renders/osc_tukey.wav')
def test_fft_process(self):
snd = dsp.read('tests/sounds/guitar1s.wav')
length = 2
def cb(pos, real, imag):
mag, arg = fft.to_polar(real, imag)
mag = fx.lpf(mag, pos * 5000 + 100)
return fft.to_xy(mag, arg)
bs = dsp.win(shapes.win('sine'), 0.05, 0.3)
out = fft.process(snd, bs, length, callback=cb)
out = fx.norm(out, 1)
out.write('tests/renders/fft_process.wav')
if A > B:
A, B = B, A
trunk = dsp.win('rsaw', A, B)
trunk.graph('trunk-%s-rsaw.png' % numgrains, y=(0,1))
branches = []
for _ in range(numbranches):
bD = dsp.rand(0.001, 0.999) # delta
bA = dsp.rand(max(A - (bD/2), 0), min(A + (bD/2), 1))
branches += [ dsp.buffer(dsp.win('rsaw', bA, B), channels=1) ]
branches = dsp.stack(branches)
branches.graph('branches-%s-rsaw.png' % numgrains, y=(0,1))
curve = shapes.win('hann', length=0.1)
trunk = dsp.win(curve, A, B)
trunk.graph('trunk-%s-randhann.png' % numgrains, y=(0,1))
branches = []
for _ in range(numbranches):
bD = dsp.rand(0.001, 0.999) # delta
bA = dsp.rand(max(A - (bD/2), 0), min(A + (bD/2), 1))
branches += [ dsp.buffer(dsp.win(curve, bA, B), channels=1) ]
branches = dsp.stack(branches)
branches.graph('branches-%s-randhann.png' % numgrains, y=(0,1))
kick.write('docs/tutorials/renders/002-kick.flac')
def makeclap(length=dsp.MS * 80):
lowhz = dsp.win('rnd', 3000, 6000)
highhz = dsp.win('rnd', 2000, 8000)
return noise.bln('tri', length, lowhz, highhz).env(pluckout)
clap = dsp.join([makeclap().pad(end=0.2)
for _ in range(8)]) # render a few claps
clap.write('docs/tutorials/renders/002-clap.flac')
from pippi import shapes
hat_lfo = dsp.win(shapes.win('sine'), 0.01,
1.1) # More on the shapes module later...
clap_lfo = dsp.win(shapes.win('sine'), 0.01, 0.1)
kick_lfo = dsp.win(shapes.win('sine'), 0.05, 0.1) # A variation for the kicks
time_lfo = dsp.win(
'hann', 0.001, 0.2
) # We'll use the same LFO for the hat smears, but in a different way...
out = dsp.buffer(length=30)
hats = dsp.buffer(length=30)
# We'll say a beat is 200ms
beat = 0.2
# First, lay down the kicks
elapsed = 0
while elapsed < 30:
kick = dsp.join([ makekick().pad(end=0.2) for _ in range(8) ]) # render a few kicks
kick.write('docs/tutorials/renders/002-kick.flac')
def makeclap(length=dsp.MS*80):
lowhz = dsp.win('rnd', 3000, 6000)
highhz = dsp.win('rnd', 2000, 8000)
return noise.bln('tri', length, lowhz, highhz).env(pluckout)
clap = dsp.join([ makeclap().pad(end=0.2) for _ in range(8) ]) # render a few claps
clap.write('docs/tutorials/renders/002-clap.flac')
from pippi import shapes
hat_lfo = dsp.win(shapes.win('sine'), 0.01, 1.1) # More on the shapes module later...
clap_lfo = dsp.win(shapes.win('sine'), 0.01, 0.1)
kick_lfo = dsp.win(shapes.win('sine'), 0.05, 0.1) # A variation for the kicks
time_lfo = dsp.win('hann', 0.001, 0.2) # We'll use the same LFO for the hat smears, but in a different way...
out = dsp.buffer(length=30)
hats = dsp.buffer(length=30)
# We'll say a beat is 200ms
beat = 0.2
# First, lay down the kicks
elapsed = 0
while elapsed < 30:
pos = elapsed / 30
kicklength = kick_lfo.interp(pos)
kick = makekick(kicklength)