The audio titled "Nonlinear RMX-16" is a fascinating exploration of sound, which seems to exist in the interesting intersection of technology and acoustics. The most prominent feature of this audio piece is its nonlinear structure, a term often used in the world of sound design to describe sounds that aren't straightforward or predictable in their progression. The audio is characterized by convolution, a complex sound processing technique which mathematically combines the audio signals, creating a richly textured, multi-layered output. This convolution creates an auditory sensation that's simultaneously familiar and foreign, something akin to an echo bouncing off in a canyon or the hum of a busy city street. The gated aspect of the audio refers to the specific type of reverb used. Typically, a gated reverb is a technique that abruptly cuts off the reverb tail for a punchy and powerful sound. This technique is used in this audio to create an effect that is both arresting and surreal,