İşitmeAtölyesiAudiogram Tool
Enter thresholds by clicking on the chart or by typing them into the table, and let the tool work out the pure-tone average, the air-bone gap, the degree and the type of loss, and flag the frequencies that need masking. You can then share the audiogram as a one-page report, a plain chart or a link.
For educational use · not a clinical document or a diagnostic tool
- 16 frequenciesfrom 250 Hz to 16 kHz
- 6 ready-made casesfrom normal to mixed type
- 5 output formatsfrom report to share card
Audiogram
Choose the ear, the pathway and the masking state from the toolbar on the left and click on the chart, or type the values into the table on the right. The interpretation, warnings and header fields are in the tabs on the right.
If you want to compare several measurements from the same person, add this audiogram to the series; when you enter the next measurement the earlier curves stay behind it in a lighter shade and the change at each frequency is listed.
Go to the serial audiogramSpeech tests and immittance
What you enter here is printed in the full report and read together with the audiogram in the assessment panel. Fields you leave empty appear as a dash in the output.
| Right | Left | |
|---|---|---|
| SRT · speech reception threshold (dB HL) | ||
| WRS · word recognition score (%) | ||
| MCL · most comfortable level (dB HL) | ||
| UCL · uncomfortable level (dB HL) |
The percentage entered for WRS is shown in the assessment together with its verbal category. If the difference between SRT and the pure-tone average exceeds 10 dB, a warning is given.
| Right | Left | |
|---|---|---|
| Tympanogram type | ||
| Peak pressure (daPa) | ||
| Compliance (ml) | ||
| Ear canal volume (ml) | ||
| Acoustic reflex · ipsilateral | ||
| Acoustic reflex · contralateral | ||
| OAE |
Enter the reflex threshold (dB HL) for each frequency, or leave it empty and write "none" if there was no response. Once the detail is filled in, the summary above is derived from it.
Output and sharing
Full report
A one-page A4 output with the header, the audiogram, the pure-tone average, the symbol key, the speech tests, the immittance section and an impression area.
Plain audiogram
Just the chart, a thin title and the symbol key. Suitable for a presentation, a lecture handout or a patient file.
Blank form
A blank A4 audiogram form to be filled in by hand. The symbol key and all fields are in place; the thresholds are empty.
Share card
A 1080 x 1350 educational card with the audiogram and a short summary, made for "what does this audiogram tell us" posts on social media.
Device Selection Workshop
Carries your thresholds, SRT and WRS over to the Device Selection Workshop, where you can look at which device type suits this loss.
Share by link
Everything you enter is encoded inside the link; no file is uploaded and nothing is sent to a server. Whoever opens the link sees the same audiogram.
Serial audiogram
When you add the measurement you are working on to the series and enter a new one, the earlier measurements stay behind it as faint dashed curves. The change at each frequency is listed below; a difference of 15 dB or more is flagged as a significant change. Up to three measurements are kept.
Student mode
There are two kinds of exercise. In the interpretation exercise the tool draws an audiogram and you decide the type and degree of the loss. In the drawing exercise you are given the measured values in a table and mark them on the audiogram above with the correct symbols.
A random audiogram is drawn and you are given a brief clinical history. You decide the type and degree of the loss and the relationship between the ears, then check your answers. You get feedback with a reason for every item.
The tool gives you a table of measured values and you mark them on the audiogram above with the correct ear, pathway and symbol. When you check your work, the deviation and the symbol are assessed separately for each threshold. The audiogram you were working on is set aside when the exercise starts and restored when it ends.
Mark the values on the audiogram above. In the table, rows marked M are masked measurements and rows marked YY had no response at that level.
What the loss sounds like
A speech sample is attenuated band by band according to the thresholds you entered, so you can hear how the loss affects audibility. The simulation reflects only the rise in thresholds; it does not include the loss of frequency selectivity, loudness recruitment or difficulty understanding speech in noise. It therefore represents the audibility side of the experience, not the whole of it.
The speech sample on the site could not be loaded. You can still try the simulation with your own audio file.
Listen with headphones at a moderate level. Attenuation is capped at 60 dB; above that limit the sound becomes completely inaudible.
The criteria the tool uses
Pure-tone average
The average of the 500, 1000, 2000 and 4000 Hz thresholds is taken. If one of the four is missing, no average is calculated. Frequencies with no response are counted as 5 dB above the equipment limit and the result is marked with an asterisk.
Type of loss
If the air-bone gap is 15 dB or more and the bone conduction average is below 20 dB, the loss is taken as conductive; if bone conduction is also elevated, as mixed; if the gap is narrow and bone conduction is elevated, as sensorineural. Without bone conduction thresholds the type is not determined.
Masking rules
For air conduction, masking is needed when the test ear threshold exceeds the opposite ear's bone conduction by the interaural attenuation or more. For bone conduction, masking is needed when the air-bone gap in the same ear exceeds 10 dB. The warnings are calculated for the transducer you select.
High-frequency region
High-frequency audiometry covers the 9, 10, 11.2, 12.5, 14 and 16 kHz thresholds; the ISO 389-5 reference thresholds are defined for this range. In this region thresholds above 20 dB HL count as elevated, and in young ears thresholds falling to negative values is an expected finding. High-frequency thresholds do not enter the pure-tone average, the degree or the type of loss; they are reported as a separate average.
Degree scale
The degree is given by the WHO 2021 classification; the Clark (1981) equivalent is also shown in the interpretation panel. The two scales differ at their cut-offs, so both are presented.
Word recognition
The percentage entered is shown with these verbal categories: 90-100 normal limits, 78-88 slight difficulty, 66-76 moderate difficulty, 54-64 poor, 52 and below very poor. The ranges step by two points because each word is worth 2% on a 50-word list.
Ramkissoon I. Back to Basics: Speech Audiometry. AudiologyOnline, 2011. The categorisation is usually attributed to Silman S, Silverman CA. Auditory Diagnosis: Principles and Applications. Academic Press, 1991.
Aided sound field
Aided thresholds are marked on three separate pathways: HA hearing aid, CI cochlear implant, A other devices (a bone-anchored hearing device, for example). All three are measured in the sound field, no distinction is made between the ears and masking is not applied. The assessment gives the proportion of the speech banana that stays above the thresholds; this is not a prescription formula.