float aev = e.GetValue();
        if (shape == 0)
        {
            if (prevshape != shape)
            {
                float vwr = e.GetValueWhenReleased();
                if (prevshape == 1) aev = aev * vwr;
                else if (prevshape == 2) aev = (float)DBToAmplitude(vwr * 80 - 80) * aev / vwr;
                else if (prevshape == 3) aev = aev / sqrtf(vwr);
                else if (prevshape == 4) aev = aev / powf(vwr, 0.25f);
            }
        }
        else if (shape == 1)
        {
            if (prevshape != shape)
            {
                float vwr = e.GetValueWhenReleased();
                if (prevshape == 0) aev = aev * aev / vwr;
                else if (prevshape == 2) aev = (float)DBToAmplitude(vwr * 80 - 80) * (aev / vwr) * (aev / vwr);
                else if (prevshape == 3) aev = aev * aev / powf(vwr, 3.0f / 2.0f);
                else if (prevshape == 4) aev = aev * aev / powf(vwr, 5.0f / 4.0f);
            }
            else
            {
                aev *= aev;
            }
        }
        else if (shape == 2)
        {
            if (aev > 0)
            {
                if (prevshape != shape)
                {
                    float vwr = e.GetValueWhenReleased();

                    if (prevshape == 0) aev = (float)DBToAmplitude(aev / vwr * 80 - 80) * vwr;
                    else if (prevshape == 1) aev = (float)DBToAmplitude(aev / vwr * 80 - 80) * vwr * vwr;
                    else if (prevshape == 3) aev = (float)DBToAmplitude(aev / vwr * 80 - 80) * sqrtf(vwr);
                    else if (prevshape == 4) aev = (float)DBToAmplitude(aev / vwr * 80 - 80) * powf(vwr, 0.75f);
                }
                else
                {
                    aev = (float)DBToAmplitude(aev * 80 - 80);
                }
            }
        }
        else if (shape == 3)
        {
            assert(shape == prevshape);
            aev = sqrtf(aev);
        }
        else if (shape == 4)
        {
            assert(shape == prevshape);
            aev = powf(aev, 0.75f);
        }