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 arp(i):
cluster = dsp.buffer()
length = random.randint(44100, 44100 + 22050)
numnotes = random.randint(3, 12)
onsets = rhythm.curve(numnotes, dsp.RND, length)
chord = chords[i % len(chords)]
freqs = tune.chord(chord, octave=random.randint(1, 3))
for i, onset in enumerate(onsets):
freq = freqs[i % len(freqs)]
note = samp.play(freq)
note = note.pan(random.random())
note *= random.triangular(0, 0.125)
cluster.dub(note, onset / cluster.samplerate)
return cluster
def makeArps(length, beat, cname):
freqs = tune.chord(cname, key, dsp.randint(1,4))
tone = Sampler(snds.load('tones/nick.wav'), direction='fw-bw-loop', tails=False)
freqs = dsp.randshuffle(freqs)
beat = int((beat * 2) / dsp.randchoose([0.5, 1, 2, 3, 1.5]))
numbeats = length / beat
out = ''
for i in range(numbeats):
out += tone.play(freqs[i % len(freqs)], beat)
out = dsp.fill(out, length)
out = fx.penv(out)
return out
def makesynths():
out = dsp.buffer(length=1)
beat = length // 2
numbeats = 16 * 8 * lenmult
pat = rhythm.topattern('x..x....')
onsets = rhythm.onsets(pat, beat, numbeats)
for i, pos in enumerate(onsets):
chord = chords[i % len(chords)]
freqs = tune.chord(chord)
for freq in freqs:
lfo = random.random() * i * 0.5
note = makenote(random.randint(length // 4, length * 3), freq * 0.25 * 2**random.randint(0, 4), lfo, factor=random.randint(1, 10))
note = note.env('phasor')
note = note.pan(random.random())
out.dub(note * 0.65, pos)
return out
def makeblips():
out = dsp.buffer(length=1)
beat = length // 2
numbeats = 16 * 8 * lenmult
pat = rhythm.topattern('x..x..x.')
onsets = rhythm.onsets(pat, beat, numbeats)
for i, pos in enumerate(onsets):
chord = chords[i*2 % len(chords)]
freqs = tune.chord(chord)
lfo = random.random() * 2
freq = freqs[0] * 0.5
if i % 8 == 0:
freq *= 2
note = makenote(length, freq, lfo, factor=random.randint(1, 10))
note = note.env('phasor')
out.dub(note * 2, pos)
return out
def makearps():
out = dsp.buffer(length=1)
beat = length // 2
numbeats = 16 * 8 * lenmult
pat = rhythm.topattern('xxxxxxxx')
onsets = rhythm.onsets(pat, beat, numbeats)
osc = oscs.Osc('tri')
for i, pos in enumerate(onsets):
chord = chords[i//4 % len(chords)]
freqs = tune.chord(chord)
freq = freqs[i % len(freqs)]
amp = random.triangular(0.1, 0.2)
pw = random.triangular(0.15, 1)
note = osc.play(beat, freq * 2, amp * 0.25, pw)
note = note.env('phasor')
out.dub(note, pos)
return out
def makeSwells(cname, numswells, length, key='e', octave=1):
swells = []
freqs = tune.chord(cname, key, octave)
root = tune.ntf(key, octave)
# Naive pitch wrapping
for i, freq in enumerate(freqs):
if freq > root * 2.5:
freqs[i] = freq * 0.5
for _ in range(numswells):
slength = dsp.randint((length / numswells) * 0.85, length / numswells)
swell = [ keys.pulsar(freq, slength, drift=dsp.rand(0.001, 0.01), speed=dsp.rand(0.1, 0.5), amp=dsp.rand(0.2, 0.5)) for freq in freqs ]
swell = dsp.mix(swell)
swell = dsp.env(swell, 'hann')
swell = dsp.taper(swell, 30)
swells += [ swell ]
swells = [ dsp.fill(swell, length / numswells, silence=True) for swell in swells ]
return ''.join(swells)
layers += [ kicks ]
if canPlay('smashes', section):
sm = dsp.fill(smash, dsp.flen(bar))
sm = dsp.mix([ dsp.alias(sm), fx.penv(sm) ])
sm = dsp.amp(sm, dsp.rand(0.5, 2))
sk = dsp.fill(skitter, dsp.flen(bar))
sk = fx.penv(sk)
layers += [ sm, sk ]
if count % 4 == 0:
layers += [ dsp.pad(flam, dsp.flen(bar) - dsp.flen(flam), 0) ]
if canPlay('bloops', section):
bfreqs = tune.chord(cname, key, 2)
bloopp = 'x.x.--------' if dsp.rand() > 0.5 else 'xxx.--------'
bloopp = bloopp if dsp.rand() > 0.65 else 'xxx.----'
pattern = ctl.parseBeat(bloopp)
bloops = ctl.makeBeat(pattern, [ beat / 2 for _ in range(16) ], makeBloop, bfreqs)
layers += [ bloops ]
if canPlay('arps', section):
arpses = dsp.mix([ makeArps(dsp.flen(bar), beat, cname) for _ in range(dsp.randint(2,4)) ])
layers += [ arpses ]
if section not in ('intro', 'ending'):
rfreqs = tune.chord(cname, key, 2)
maxbend = 0.005 if dsp.rand() > 0.3 else 0.05
rhodeses = makeRhodes(dsp.flen(bar), beat, rfreqs, maxbend)
#
#
xaxis = ny.arange(samples, dtype=ny.float) #
ydata = volume * ny.sin(xaxis * omega) #
# blanks填充获取numpy数字信号 #
signal = ny.resize(ydata, (samples, )) #
scipy.io.wavfile.write('test.wav', samplerate, signal) #
#
##################################################################
#读取test.wav文件
raw = dsp.read('test.wav')
########## 输入原先创建的正弦波，通过pippi创建一个C3调谐 ##############
#
freqs = tune.chord('I', key='C', octave=3, ratios=tune.just) #
original_freq = tune.ntf('A1') #
speeds = [new_freq / original_freq for new_freq in freqs] #
pos = 0 #
beat = 1.5 #
out = dsp.buffer() #
#参考：https://pippi.world/docs/tutorials/001-soundbuffers/ #
for speed in speeds: #
# 创建原始输入文件音高偏移副本 #
note = raw.speed(speed) #
#
# 复制到输出缓冲区中 #
out.dub(note, pos) #
#
# 复制高八度副本 #
note = raw.speed(speed * 2) #
def get_freqs(count):
# mahjong by wayne shorter
chords = (['i11', 'VII69'] * 6) + (['VI9', 'VII69'] * 4) + (['VI7', 'vii7', 'III7', 'VI9', 'vi7', 'II7']) + (['i11', 'VII69'] * 6)
chords = ['i','i','i','I','I','I69','i','i','i']
return tune.chord(chords[count % len(chords)], octave=2)
def make_wavetable():
wtsize = random.randint(2, random.randint(3, 50))
wavetable = [0] + [random.triangular(-1, 1)
for _ in range(wtsize - 2)] + [0]
return wavetable
out = dsp.buffer()
chords = 'ii vi V7 I69'
dubhead = 0
for chord in chords.split(' ') * 8:
chordlength = random.triangular(2, 3) # in seconds
freqs = tune.chord(chord, key='e', octave=2)
numnotes = random.randint(3, 6)
notes = []
for _ in range(numnotes):
notelength = random.triangular(0.1, 2)
freq = random.choice(freqs)
amp = random.triangular(0.1, 0.25)
note = oscs.Osc(wavetable=make_wavetable()).play(notelength, freq, amp)
note = note.env(dsp.RND)
note = note.taper(0.01)
note = note.pan(random.random())
out.dub(note, dubhead + random.triangular(0, 0.1))
def test_get_chord(self):
assert tune.chord('I7', key='a', octave=4, ratios=tune.just) == [440.0, 550.0, 660.0, 792.0]
assert tune.chord('I7', key='a', octave=3, ratios=tune.just) == [220.0, 275.0, 330.0, 396.0]
def test_getChord(self):
assert tune.chord('I7', key='a', octave=4,
ratios=tune.just) == [440.0, 550.0, 660.0, 792.0]
assert tune.chord('I7', key='a', octave=3,
ratios=tune.just) == [220.0, 275.0, 330.0, 396.0]
def get_freqs(count):
chords = ['II', 'V9', 'vii*', 'IV7']
return tune.chord(chords[count % len(chords)])
return out
for i in range(numbars):
bar = dsp.buffer()
numlayers = random.randint(3, 6)
beat = int(((60000 / 109) / 1000) * 44100) // 4
if i // 4 % 3 == 0:
chord = chords2[i % len(chords2)]
else:
chord = chords[i % len(chords)]
freqs = tune.chord(chord, octave=3, key='d')
if i > 3:
for _ in range(numlayers):
pattern = rhythm.pattern(16, random.randint(2, 6),
random.randint(0, 3))
onsets = rhythm.onsets(pattern, beat)
for onset in onsets:
if random.random() > 0.5:
osc.freq = random.choice(freqs)
osc.wavetable = [0] + [
random.triangular(-1, 1)
for _ in range(random.randint(3, 10))
] + [0]
osc.amp = 0.5
snd = osc.play(random.randint(441, 44100))
def test_getChord():
assert tune.chord('I7', key='a', octave=4, ratios=tune.just) == [440.0, 550.0, 660.0, 792.0]
ohats = drums.parsebeat(ohat, 8, beat, length, makeOHat, 0)
kicks = drums.parsebeat(kick, 8, beat, length, makeKick, 0)
snares = drums.parsebeat(snare, 8, beat, length, makeSnare, 0)
lsnares = drums.parsebeat(lsnare, 8, beat, length, makeLSnare, 0)
snaresnstuff = dsp.mix([ohats,snares])
snaresnstuff= dsp.split(snaresnstuff, dsp.flen(snaresnstuff) / 32)
snaresnstuff = dsp.randshuffle(snaresnstuff)
snaresnstuff = [ dsp.env(sns, 'phasor') for sns in snaresnstuff ]
snaresnstuff = ''.join(snaresnstuff)
snaresnstuff = dsp.amp(snaresnstuff, 0.5)
bar = dsp.mix([kicks,lsnares,snares,hats,ohats,snaresnstuff])
#bar = dsp.mix([hats,ohats])
if count % 4 == 0:
bar = dsp.mix([ bar, dsp.fill(bksnd, dsp.flen(bar), silence=True) ])
progression = 'ii6 ii69'.split(' ')
cname = progression[ count % len(progression) ]
rfreqs = tune.chord(cname, key, 2)
rhodes = makeRhodes(dsp.flen(bar), beat / 8, rfreqs)
out += dsp.mix([ bar, dsp.fill(rhodes, dsp.flen(bar)) ])
#out += bar
count += 1
elapsed += dsp.flen(bar)
dsp.write(out, '05-bumps_ii')
def test_sub_bass_movements(self):
freqs = tune.chord('ii/i', key='a', octave=4, ratios=tune.JUST)
self.assertEqual(freqs[0], 440.0)
from pippi import dsp
from pippi import tune
chord = tune.chord('I', octave=2, key='a', ratios=tune.terry)
numsegs = 2222
length = dsp.stf(60) / numsegs
numpoints = 7
wfs = [
dsp.breakpoint([dsp.rand(-1, 1) for p in range(numpoints)], 512)
for _ in range(numsegs)
]
win = dsp.wavetable('tri', 512)
mods = [
dsp.breakpoint([dsp.rand(0, 1) for p in range(numpoints)], 512)
for _ in range(numsegs)
]
modfs = [dsp.rand(0.01, 0.1) for _ in range(numsegs)]
modrs = [dsp.rand(0, 0.1) for _ in range(numsegs)]
pws = [dsp.rand(0.01, 1) for _ in range(numsegs)]
out = []
for wf, mod, modf, modr, pw in zip(wfs, mods, modfs, modrs, pws):
layers = []
for freq in chord:
layer = dsp.pulsar(freq, length, pw, wf, win, mod, modr, modf, 0.1)
layers += [layer]
def pulsars(chord, length=22050, drift=0.01, speed=0.5, amp=0.1, pulsewidth=None, env='flat', key='c', octave=3):
freqs = tune.chord(chord, key, octave)
return dsp.mix([ pulsar(freq, length, drift, speed, amp, pulsewidth, env) for freq in freqs ])
