def valRisingSlopes(Frames):
    """Computes values of RISING slopes.Returns a list of
    all values of RISING slopes in the signal."""
    previous, slopes = Frames[0], []
    for i in range(len(Frames)):
        if Frames[i] > previous:
            slopes.append(Frames[i] - previous)
        previous = Frames[i]
    return slopes
