Reflection intensity bounds can be graphed from delay and distance alone

Evidence

Because there is a direct correspondence between delay, distance from the source and the reduction in intensity due to the inverse square law, we can plot all this on a common graph (see Figure 6.6), which shows the maximum bounds of the intensity level of reflections, provided there are no focusing effects. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 1717