core.py 文件源码

def time_delay_func(x, y):
        print 'locating ...'
        c = numpy.correlate(x[:, 0], y[:, 0], "full")
        C, I = c.max(0), c.argmax(0)
        out = ((float(len(c))+1.0)/2.0 - I)/44100.0
        return out