This is a basic example using pydub for audio manipulation. You'd need to install it via pip:

The best all-rounder for daily use. It offers a balanced enhancement that sounds great for web browsing, YouTube, and general system sounds.

The answer lies in the psychology of perception. Human hearing is inherently biased. We perceive louder sounds as "better." This is known as the Fletcher-Munson effect. FxSound presets, by their very nature, increase perceived loudness and clarity. They turn a passive listening experience into an active one.