Audio Sample 19: Natural sounds of the Trench (2m 56s)
An inventory of existing sonic conditions in the Trench: sound samples include, in order, a passing train, a horn blast, a PA announcement with stationary train, a train hiss, gurgling pipes with stationary train, and a departing train. All of the sounds in this audio sample have been normalised and as such do not provide an accurate representation of the relative variation in loudness.
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