These devices made sharp sounds that would echo off different surfaces walls, ceilings, glass windows, trees and so forth, at time lags determined by how far away from the surface you were.
(These devices; made; sharp sounds that would echo off different surfaces walls, ceilings, glass windows, trees and so forth, at time lags) (sharp sounds; would echo off; different surfaces walls, ceilings, glass windows, trees and so forth) (time lags; determined; by how far away from the surface) (the surface; were; you)
These devices sharp sounds time lags the surface
made would echo off determined were
sharp sounds that would echo off different surfaces walls, ceilings, glass windows, trees and so forth, at time lags
different surfaces walls, ceilings, glass windows, trees and so forth
by how far away from the surface
you