コード例 #1
0
ファイル: sto.py プロジェクト: hecanjog/hcj.py
    def stream(length, numsegments, freq):

        out = []
        seglength = dsp.randint(100, 300)
        points = [ dsp.rand(-1, 1) for _ in range(dsp.randint(10, 20)) ]

        for _ in range(numsegments):
            seglength = dsp.cap(seglength + dsp.randint(-5, 5), 1000, 100)
            points = [ dsp.cap(p + dsp.randint(-0.1, 0.1), 1, -1) for p in points ]

            out += dsp.breakpoint([0] + points + [0], seglength)

        print len(out), freq, length

        out = dsp.ctone(freq, dsp.stf(length), out, dsp.rand(0.1, 0.5))
        #out = dsp.env(out, 'random')

        return out
コード例 #2
0
ファイル: fx.py プロジェクト: hecanjog/hcj.py
def rb(snd, length=None, speed=None, hz=None, interval=None, ratios=None, crisp=0, formant=False):
    pid = os.getpid()
    cmd = ['rubberband']

    # Time stretching
    if length is not None and dsp.flen(snd) != length and length > 0:
        cmd += [ '--duration %s' % dsp.fts(length) ] 

    # crisp setting
    cmd += [ '--crisp %s' % dsp.cap(crisp, 6, 0) ]

    # preserve formants
    if formant:
        cmd += [ '--formant' ]

    # pitch shift by speed
    if speed is not None:
        cmd += [ '--frequency %s' % speed ]

    # pitch shift by semitones
    if interval is not None:
        # TODO use pippi.tune ratios and calc frequency args
        cmd += [ '--pitch %s' % interval ]

    vpid = pid + random.randint(1, 10000)

    cmd = ' '.join(cmd) + ' /tmp/infile%s.wav /tmp/outfile%s.wav' % (vpid, vpid)

    dsp.write(snd, '/tmp/infile%s' % vpid, cwd=False)

    with open(os.devnull, 'w') as devnull:
        p = subprocess.Popen(cmd, stdout=devnull, stderr=devnull, shell=True)
        p.wait()

    out = dsp.read('/tmp/outfile%s.wav' % vpid).data
    os.remove('/tmp/outfile%s.wav' % vpid)
    os.remove('/tmp/infile%s.wav' % vpid)

    return out