Sensory Overload Meter

How this tool works

Five sliders — noise, light, crowds, task demand, masking effort — combine into one weighted number: your current sensory load, with a plain-language band underneath. The noise input can even take a live reading from your device's microphone (the stream never leaves the page). What makes the meter more than a fixed calculator is the calibration: after a situation, you answer “was that too much?” — and the threshold between ok and too much moves toward your reality. Over time, the number stops being generic and starts being yours.

Everything stays on this device: history in your browser's local storage, one-click export and delete, no accounts, no uploads. The sparkline at the bottom shows your recent load so you can see the shape of your weeks, not just the present moment.

The research behind it

The mechanism this tool implements — external feedback that makes rising sensory load visible early — is the same one research prototypes like MySensory and AudioBuddy were built to explore: a support for the alexithymia gap, the difficulty many autistic people report in noticing their own internal states until they are already overwhelming. The idea is to catch load while it is climbing, not after it crests.

The five inputs are this site's model, stated honestly: a transparent heuristic — noise, light, people, task and masking effort are the factors the site's writing and tools treat as the load stack, with masking included because the camouflaging-cost research counts performance effort as real expenditure (the Camouflage Profile and the Energy Ledger cover that half). It is not a validated clinical instrument, and it says so on its face.

How to use it well

• Score situations, not vibes. The meter works best when you slide it in a real place — this café, this open-plan afternoon — and let the number name what you are carrying.
• Always answer the calibration question, honestly. “Was that too much?” is the single most valuable input; a threshold tuned by real answers becomes genuinely predictive of your overloads.
• Watch the trend, not the moment. A climbing week of “yellow” is a different message than one bad afternoon — the sparkline exists for exactly that reading.
• Let the number start conversations. The export turns “I'm at 74 and my threshold is 60” into a sentence a partner, colleague or teacher can actually work with.
• When the number and your body disagree, your body wins. The tool's own rule — the heuristic serves you, never the reverse.

What this tool is not

• Not a clinical instrument. It is a self-knowledge heuristic with an honest band — no diagnosis, no norms, no claims of validation.
• Not a meltdown predictor. It shows load as you report it; it cannot see the future. Rising numbers mean “worth acting on”, never “guaranteed crash”.
• Not a demand to log everything. No streaks, no notifications — use it when it helps, exactly like every other tool on this site.

Questions people ask

Why does my threshold move over time?

Because it is calibrated, not fixed. Each honest “too much?” answer nudges the boundary toward your lived reality — early readings are generic; later readings are yours. If the number starts feeling accurate, that calibration is why.

Why is “masking” one of the five inputs?

Because performing takes energy that has to come from the same budget as noise and light. The camouflaging literature treats masking effort as a real, countable cost (Hull et al., 2017), and the site's own Energy Ledger exists to track it — this meter just lets you include it in the load picture as it happens.

Does the microphone record me?

No. The live noise reading analyses the audio stream inside the page and shows a number; nothing is recorded, stored or uploaded, and closing the tab ends it.

How is this different from the Stress Check-In?

The Check-In reads your inner state — sleep, patience, body, what the day is demanding. This meter reads the environment — noise, light, crowds, task, masking — the outside half of the same picture. Used together they answer the two questions that actually matter: “what is the room doing to me?” and “where am I at, in it?”.

What if my threshold is much lower than other people's?

Then the meter is working — it measures your reality, not a population average. The research on sound tolerance alone shows autistic people commonly feel overload at levels others find unremarkable; a personal tool that refused to believe you would be worse than useless. Low thresholds are data to plan around, never a verdict to argue with.

Where to go next

• Sound Level Meter — measure the loudest input precisely.
• Stress Check-In — the sixty-second companion for the days the load is already high.
• Sleep, sensory regulation and the body clock — the writing behind the load model.