In total, they examined the signatures for seven rocket types to derive a relation between the measured amplitude and the rocket thrust: Space Shuttle; SpaceX's Falcon 9; various Russian Soyuz and Protons rockets; the European Space Agency's Ariane 5 and several types of Chinese Long March rockets. The team only examined rocket launches that occurred up to 3,100 miles from an IMS station, but found the acoustic signals from rocket launches could sometimes be detected up to 5,600 miles away, according to author Patrick Hupe. In total, they examined the signatures for seven rocket types to derive a relation between the measured amplitude and the rocket thrust. This system is currently characterized by a series of 53 certified and operational stations around the world. Infrasound, also known as low-frequency sound, describes sound waves with a frequency below the lower limit of human audibility.
Various types of brewing launches would produce very different noises.
( z0 produce :ARG0 ( z1 launch :ARG1 ( z2 brew ) :mod ( z3 type :mod ( z4 various ) ) ) :ARG1 ( z5 noise :ARG1-of ( z6 differ :degree ( z7 very ) ) ) )
(z0 / produce-01
    :ARG0 (z1 / launch-01
              :ARG1 (z2 / brew-01)
              :mod (z3 / type
                       :mod (z4 / various)))
    :ARG1 (z5 / noise
              :ARG1-of (z6 / differ-02
                           :degree (z7 / very))))
Various types of brewing launches would produce very different noises .
z3 :mod z4
z1 :ARG1 z2
z1 :mod z3
z0 :ARG0 z1
z6 :degree z7
z5 :ARG1-of z6
z0 :ARG1 z5