Why a song can be loud and still sound bad

The first thing most people do to make a demo sound “better” is turn everything up. It rarely works, and the reason is that loudness and impact are different properties of a recording.

Two different measurements

Peak level tells you the highest single sample in a file. Loudness — what your ears register over time — is closer to an average, which is why it is often measured over a window rather than as a peak. A mix can have healthy peaks and still feel quiet, or feel loud and exhausting while its peaks never touch zero.

The gap between the loudest and the quietest part of a recording is the dynamic range. Compression reduces that gap: quiet parts get pushed up, loud parts get held down. Used well, it makes a performance feel consistent and present. Used badly, it removes the contrast that made the arrangement work.

Why over-compression sounds harsh

When a compressor is working hard, it pulls the level of everything up toward the ceiling. In a small band recording this can mean the drums start to dominate, because percussive transients tend to trigger the compressor first (our explanation from common mixing practice, not from the source below). The mix gets louder in the literal sense and flatter in the musical one: the quiet verse and the loud chorus arrive at similar levels, and the listener loses the signal that something has changed.

There is also a listening reason it feels tiring: a track that is unrelieved in its loudness gives the ear no contrast across three minutes. This is about how a recording sounds, not about the exposure limits that apply to live sound; see our article on hearing loss and live music for those.

The practical order of operations

Fix the arrangement first. If the chorus needs to feel bigger, the cheapest change is adding something — a doubled vocal, an open hi-hat, a second guitar — rather than adding gain. Compression on a bus is a tool for gluing, not for making a song louder.

Second, leave headroom on the master. If the mix peaks near the ceiling before you do anything, every later stage has nowhere to go.

Third, compare at matched loudness. A louder version of the same mix will usually seem better in a direct A/B, a widely reported effect of how hearing works (this article does not cite a study for it), so match the levels before judging.

What to aim for

A recording that sounds loud when the chorus arrives and quiet when the verse does is doing its job. The number on the meter is a constraint, not a goal.

Sources

The cited page covers compression only; the mixing advice above is editorial guidance, not research.

• Wikipedia — Dynamic range compression — accessed 2026-10-28