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Interaural Time Sign Convention Tool

Relabel a supplied interaural timing difference without estimating localization or hearing status.

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Description

Return interaural time difference under a supplied sign convention.

Audiological records depend on ear/channel identity, stimulus calibration, timing and decibel reference conventions. A local level difference or response share can reconcile supplied observations while hearing ability, safe sound output and clinical test interpretation require validated procedures and professional assessment.

Return interaural time difference under a supplied sign convention.

When to use this tool

Use Interaural Time Sign Convention when checking the stated hearing-test record, acoustic level, frequency or timing convention.

How to use the tool and how it works

  1. Enter leftTime, rightTime, positiveMeansRightLater. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read difference, leftEarlier. Inspect leftEarlier before interpreting the associated values.

Return interaural time difference under a supplied sign convention. difference = (rightTime-leftTime) times the requested sign; leftEarlier always tests leftTime < rightTime independently.1

Input fieldMeaning and unitsAccepted input
leftTimeLeft TimeRequired. Finite number.
rightTimeRight TimeRequired. Finite number.
positiveMeansRightLaterPositive Means Right LaterRequired. Boolean.
Output fieldInterpretationReturned shape
differenceDifferenceRequired. Finite number.
leftEarlierLiteral leftTime < rightTime, independent of the requested sign for difference.Required. Boolean.
json
{
  "input": {
    "leftTime": 2,
    "rightTime": 5,
    "positiveMeansRightLater": true
  },
  "output": {
    "difference": 3,
    "leftEarlier": true
  }
}

Limitations and assumptions

  • Time units and reference origins must agree; no sound localization, auditory processing or hearing diagnosis is inferred.
  • 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

Use calibrated equipment and a complete validated audiological method; consult an appropriate hearing-health professional for diagnosis, fitting or safe exposure decisions.

References

  1. Calculation and input contract: audiology/interaural-time-sign-convention — tool.io

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