def play(args):
length = dsp.stf(30)
volume = 0.2
octave = 2
notes = ['d', 'a']
quality = tune.major
waveform = 'sine'
ratios = tune.terry
wtypes = ['sine', 'phasor', 'line', 'saw']
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':
notes = a[1].split('.')
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] == 'tr':
ratios = getattr(tune, a[1], tune.terry)
harm = range(1, 30)
layers = []
for note in notes:
tones = []
freq = tune.ntf(note, octave, ratios)
for i in range(30):
angles = dsp.breakpoint([freq * dsp.randchoose(harm) for f in range(dsp.randint(3, 50))], dsp.randint(350, 500))
alen = int(length / len(angles)) * 2
angles = [ dsp.env(dsp.tone(alen, a, 'random'), 'sine') for a in angles ]
# Each overtone blip should overlap by about 50% with its neighbor...
lowangles = ''.join([ angle for i, angle in enumerate(angles) if i % 2 == 0 ])
highangles = [ angle for i, angle in enumerate(angles) if i % 2 != 0 ]
highangles[0] = dsp.cut(highangles[0], dsp.flen(highangles[0]) / 2, dsp.flen(highangles[0]) / 2)
highangles = ''.join(highangles)
tones += [ dsp.benv(dsp.amp(dsp.mix([lowangles, highangles]), 0.9), [dsp.rand(0.1, 0.9) for i in range(dsp.randint(5, 30))]) ]
tones = dsp.mix(tones)
#tonic = dsp.env(dsp.amp(dsp.tone(int(length * 0.6), freq, 'sine2pi'), 0.1), 'flat')
#layers += [ dsp.mix([tones, tonic], False) ]
layers += [ tones ]
out = dsp.mix(layers)
return dsp.amp(out, volume)
def renv(snd, low=4, high=20, taper=True):
e = [ dsp.rand() for _ in range(dsp.randint(low, high)) ]
if taper:
e = [0] + e + [0]
return dsp.taper(dsp.benv(snd, e), 40)
