def stretch(snd, length=None, speed=None, grain_size=20):
""" Crude granular time stretching and pitch shifting """
original_length = dsp.flen(snd)
if speed is not None:
snd = dsp.transpose(snd, speed)
current_length = dsp.flen(snd)
if original_length != current_length or length is not None:
grain_size = dsp.mstf(grain_size)
numgrains = length / (grain_size / 2)
numgrains = numgrains if numgrains > 0 else 1
block_size = current_length / numgrains
grains = []
original_position = 0
count = 0
while count <= numgrains:
grain = dsp.cut(snd, original_position, grain_size)
grains += [ grain ]
original_position += block_size
count += 1
snd = dsp.cross(grains, dsp.ftms(grain_size / 2))
return snd
def stretch(snd, length=None, speed=None, grain_size=20):
""" Crude granular time stretching and pitch shifting """
original_length = dsp.flen(snd)
if speed is not None:
snd = dsp.transpose(snd, speed)
current_length = dsp.flen(snd)
if original_length != current_length or length is not None:
grain_size = dsp.mstf(grain_size)
numgrains = length / (grain_size / 2)
numgrains = numgrains if numgrains > 0 else 1
block_size = current_length / numgrains
grains = []
original_position = 0
count = 0
while count <= numgrains:
grain = dsp.cut(snd, original_position, grain_size)
grains += [grain]
original_position += block_size
count += 1
snd = dsp.cross(grains, dsp.ftms(grain_size / 2))
return snd
def play(args):
length = dsp.stf(dsp.rand(5, 10))
volume = 0.2
octave = 2
note = 'd'
quality = tune.major
reps = dsp.randint(3, 11)
glitch = False
superglitch = False
pulse = False
ratios = tune.terry
rhodes = dsp.read('sounds/220rhodes.wav').data
#scale = [1,3,5,4]
scale = [1,5,8,6]
for arg in args:
a = arg.split(':')
if a[0] == 't':
length = dsp.stf(float(a[1]))
if a[0] == 'v':
volume = float(a[1]) / 100.0
if a[0] == 'o':
octave = int(a[1])
if a[0] == 'n':
note = a[1]
if a[0] == 'q':
if a[1] == 'M':
quality = tune.major
elif a[1] == 'm':
quality = tune.minor
else:
quality = tune.major
if a[0] == 'r':
reps = int(a[1])
if a[0] == 'p':
pulse = True
if a[0] == 'g':
glitch = True
if a[0] == 'gg':
glitch = True
superglitch = True
if a[0] == 'tr':
if a[1] == 'young':
ratios = tune.young
elif a[1] == 'terry':
ratios = tune.terry
if a[0] == 's':
scale = [int(s) for s in a[1].split('.')]
out = ''
for i in range(reps):
freq = tune.step(i, note, octave, scale, quality, ratios)
diff = freq / 440.0
n = dsp.transpose(rhodes, diff)
n = dsp.fill(n, length)
o = [dsp.tone(length, freq * i * 0.5) for i in range(4)]
o = [dsp.env(oo) for oo in o]
o = [dsp.pan(oo, dsp.rand()) for oo in o]
o = dsp.mix([dsp.amp(oo, dsp.rand(0.05, 0.1)) for oo in o])
out += dsp.mix([n, o])
if glitch == True:
if superglitch == True:
mlen = dsp.mstf(100)
else:
mlen = dsp.flen(out) / 8
out = dsp.vsplit(out, dsp.mstf(1), mlen)
out = [dsp.pan(o, dsp.rand()) for o in out]
out = ''.join(dsp.randshuffle(out))
if pulse == True:
plen = dsp.mstf(dsp.rand(80, 500))
out = dsp.split(out, plen)
mpul = len(out) / dsp.randint(4, 8)
out = [dsp.env(o) * mpul for i, o in enumerate(out) if i % mpul == 0]
opads = dsp.wavetable('sine', len(out), dsp.rand(plen * 0.25, plen))
out = [dsp.pad(o, 0, int(opads[i])) for i, o in enumerate(out)]
out = dsp.env(''.join(out))
return dsp.cache(dsp.amp(out, volume))
