The audio titled "Stack Driver 3" unfolds a vivid ambiance of a construction site. The dominant sound is a rhythmic banging, the audible signature of a piledriver in action. As the piledriver hammers into the ground, the noise reverberates around, creating a resonant echo that gives an impression of a vast, open space. Amidst this resonating echo, the hum of other equipment can be discerned, adding depth and complexity to the soundscape. These sounds fade in and out, suggesting that the listener is at a certain distance from the main activity. The consistent rhythm of the piledriver gives the audio a pulse, a heartbeat that underscores the ceaseless activity and progress inherent in a construction site.