skip2.py

skip2.py

from pippi import dsp

class Player:
    def __init__(self, snd, position=0, jump_size=dsp.stf(5), skip_length=dsp.mstf(180)):
        self.snd = snd
        self.position = dsp.randint(position, position + jump_size)

        self.jump_size = jump_size # playhead max jump size
        self.skip_length = skip_length # buffer length

    def choose(self, skip_length=None):
        if skip_length is None:
            skip_length = self.skip_length

        pos = dsp.randint(self.position, (self.position + self.jump_size) - skip_length)

        segment = dsp.cut(self.snd, pos, skip_length)

        self.position += dsp.randint(0, self.jump_size)

        return segment

num_alts = 5
num_sections = 20 
section_length = dsp.stf(20)

snd = dsp.read('shadows.wav').data

player = Player(snd, dsp.stf(20))

out = ''
for section in range(num_sections):
    elapsed = 0
    ost = player.choose()
    alts = [ player.choose() for a in range(num_alts) ]

    while elapsed < section_length:
        if dsp.rand() < 0.95:
            buf = ost

        else:
            num_skips = dsp.randint(2, 3) 
            buf = ''.join([ dsp.randchoose(alts) for a in range(num_skips) ])

        elapsed += dsp.flen(buf)
        out += buf

dsp.write(out, 'skipout5')