Protecting your hearing on stage and in the booth

Your ears are the one piece of gear you cannot replace, and the club is an occupational noise environment whether you treat it as one or not. A live-coder or DJ playing a two-hour set in a booth pinned between the main PA and a monitor wedge routinely sits well above the 85 dBA baseline — and because 70% of noise-induced hearing loss arrives with no tinnitus warning, “it doesn’t ring, so I’m fine” is not a strategy. This module builds one whole task: a personal noise-exposure audit for a typical gig, ending in a written hearing-protection plan you would actually follow on your next booking.

The arc starts supported: with the 85 dBA exposure limit and the 3 dB exchange rate in hand, you practise the halving arithmetic (88 dBA → 4 hours, 91 → 2) until it is automatic — this is the module’s part-task drill, because every later estimate leans on it. You then fold level and duration into a single number using the noise-dose / time-weighted-average concept, and choose between a sound level meter and a personal dosimeter for a varying club environment. The clinical atoms — the 3000–6000 Hz audiogram notch and the 15 dB significant threshold shift — give your plan its risk language and its testing schedule. Finally the IEM atoms make the plan performable: the 95–97 dB average target converts dose math into one stage number, the recalibration principle shows the loud-monitoring habit is trainable away in weeks, and the one-IEM-removal misconception explains why the “hear the room” workaround doubles your risk.

Every required atom is load-bearing in the capstone: the audit cannot cite limits, compute a dose, pick a tool, name the risks, or set an IEM strategy without them. Nothing here is decoration — the audit is the test.