Description
Calculate a supplied air-minus-bone threshold gap at a stated frequency.
Hearing records depend on frequency, laterality, masking status, calibration and level reference. A no-response label differs from a measured threshold, while an air-minus-bone gap requires comparable test conditions. Device charge arithmetic and scalar signal offsets do not establish hearing status or suitable care.
Calculate a supplied air-minus-bone threshold gap at a stated frequency.
When to use this tool
Use Air Bone Frequency Gap when you already have airThresholdDb, boneThresholdDb, frequencyHz and need to calculate a supplied air-minus-bone threshold gap at a stated frequency.
How to use the tool and how it works
- Enter airThresholdDb, boneThresholdDb, frequencyHz. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read airMinusBoneDb. Use the output convention below.
Require frequencyHz>0; return airThresholdDb-boneThresholdDb.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| airThresholdDb | Air Threshold Db | Required. Finite number. |
| boneThresholdDb | Bone Threshold Db | Required. Finite number. |
| frequencyHz | Frequency Hz | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| airMinusBoneDb | Air threshold minus bone threshold at the supplied positive frequency; no clinical cutoff. | Required. Finite number. |
{
"input": {
"airThresholdDb": 35,
"boneThresholdDb": 15,
"frequencyHz": 1000
},
"output": {
"airMinusBoneDb": 20
}
}Limitations and assumptions
- Thresholds must use comparable level references and conditions. No gap criterion, masking adequacy, conductive mechanism or diagnosis is established.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Review original audiograms, instrument settings, test records and the complete clinical context. Use an appropriate professional assessment for interpretation; local unit conversions and supplied labels do not choose tests, presentation levels or intervention.
References
Similar or alternative tools
- Audiology Frequency Interaural Gap
Calculate a supplied right-minus-left hearing-threshold difference.
- Audio Metric Frequency Octave Offset
Calculate supplied frequency separation in octaves.