Audiogram Plotter

Yes — pick the ear and test type from the "Plotting point for" selector, then click anywhere on the chart to place a threshold, or click an existing point to select it and drag it to a new position. Every graph edit updates the matching table cell immediately, and typing in the table updates the graph immediately too — they share the same data.

This follows the standard ASHA audiogram convention: red O marks are the right ear's air-conduction thresholds and blue X marks are the left ear's. Bone conduction adds a second symbol pair, < / > for unmasked and [ / ] for masked results, and masked air conduction switches to a triangle (right) or square (left) — the same convention used on a clinical audiogram printout. See the symbol key below the chart.

Audiograms plot hearing level (dB HL) with quieter, better-heard sounds at the top and louder thresholds — meaning worse hearing — lower down, so a line that drifts downward visually shows hearing loss increasing, matching the standard clinical chart layout.

Check it when a frequency was tested up to the audiometer's maximum output with no response. The chart pins that symbol to the bottom of the scale — the audiometer's practical maximum — with the standard 45-degree arrow attached, instead of plotting it at whatever number happens to be in the box, matching how audiologists mark an untestable threshold on a paper audiogram.

Bone-conduction oscillators can't reliably deliver frequencies above 4000 Hz, so clinical pure-tone audiometry only tests bone conduction at the octave frequencies from 250 Hz to 4000 Hz — this tool follows that same range.

No — this only visualizes numbers you already have (from an audiologist's report, for example) and estimates a severity band from the average. It cannot measure your hearing itself and does not diagnose hearing loss; use it to review or share results you already obtained from a proper pure-tone audiometry test, and consult a qualified audiologist or clinician for interpretation.

The horizontal axis is frequency (pitch), from 250 Hz on the left to 8000 Hz on the right, plotted on a logarithmic scale so each column is an equal octave step. The vertical axis is loudness in dB HL, running from quiet at the top (-10) to loud at the bottom (120) — so a line that sits lower means a louder sound was needed to hear it, i.e. worse hearing at that frequency.

Each ear's average air-conduction threshold across its entered frequencies is classified using the common clinical convention: 0-15 dB HL Normal, 16-25 Slight, 26-40 Mild, 41-55 Moderate, 56-70 Moderately severe, 71-90 Severe, and above 90 Profound. The tool computes and labels this average automatically below the chart for each ear; it is a descriptive label, not a diagnosis.

Yes — "Download chart as PNG" adds a compact legend beneath the chart listing only the series you've actually plotted, so the exported image is self-explanatory without the surrounding page.