In "Sound Effect Number 4", the audience is treated to a unique auditory experience. This sound effect, categorized under the tags soundfx, effect, and sfx, starts off with a gentle, almost ethereal hum that gradually increases in intensity. This is followed by a series of high-pitched electronic beeps that seem to echo off into the distance. The effect is akin to a digital heartbeat, steady and rhythmic. As the sound progresses, it is interjected with what sounds like the crackling of static electricity, adding a layer of complexity. This sound effect ends with a dramatic crescendo, leaving a lingering echo which slowly fades into silence.