Sound Level Meter
Measure the room you're in — live loudness plus the frequency bands research links to auditory overload. Your microphone audio never leaves this page.
Read this honestly: a phone or laptop mic is not a calibrated professional meter — treat the number as a good estimate, not gospel. What the evidence says: many autistic people show decreased sound tolerance from around 40 dB, and the most unpleasant frequency ranges in psychoacoustic studies are 250 Hz and 8 kHz (2 kHz close behind) — that's why the bands above highlight low and high over mid. Your own thresholds are the ones that matter.
🔒 The microphone stream stays inside this tab — there is no recorder, no upload path, no network call after the page loads. · Evidence: Williams et al. 2021 (Neurosci Biobehav Rev, decreased sound tolerance in autism); PolyU aural-perception studies (2025/2026) on aversive frequency bands. · For self-understanding, not diagnosis.
Need the full picture (light, crowds, task too)? → Sensory Overload Meter