Speech Interference Level Office Privacy Checker
Audit arithmetic four-octave speech interference level against caller criterion, distinct from logarithmic sound-energy mean; no intelligibility/privacy/acoustic comfort certification.
Description
A four-band speech interference level is an arithmetic mean of octave levels.
A four-band speech interference level is an arithmetic mean of octave levels. It differs from an acoustic energy mean.1
Enter exactly four finite measured octave-band dB levels and a finite caller maximum. Return their arithmetic mean and strict-above-limit flag.
When to use Speech Interference Level Office Privacy Checker
Use Speech Interference Level Office Privacy Checker when you need to evaluate the supplied records under the calculation and evidence rules below. No intelligibility, privacy or acoustic-comfort certification is provided.
Prepare measured task, body, furniture or already weighted exposure records. Supply independently verified caller policies, tables and comparison limits with matching units and conditions.
How to use Speech Interference Level Office Privacy Checker and understand its results
- Prepare measured task, body, furniture or already weighted exposure records. Supply independently verified caller policies, tables and comparison limits with matching units and conditions.
- Enter octaveSpeechBandLevelsDb, callerMaximumSpeechInterferenceDb using the field table and calculation rules, then run the tool.
- Read fourBandSpeechInterferenceLevelDb, aboveCallerSpeechInterferenceLimit. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| octaveSpeechBandLevelsDb | Octave speech band levels db | list of number | Required |
| callerMaximumSpeechInterferenceDb | Caller maximum speech interference db | number | Required |
Enter exactly four finite measured octave-band dB levels and a finite caller maximum. Return their arithmetic mean and strict-above-limit flag.
SIL=mean(level500,level1000,level2000,level4000) Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| fourBandSpeechInterferenceLevelDb | Four band speech interference level db | number |
| aboveCallerSpeechInterferenceLimit | Above caller speech interference limit | boolean |
{
"input": {
"octaveSpeechBandLevelsDb": [
40,
50,
60,
70
],
"callerMaximumSpeechInterferenceDb": 50
},
"output": {
"fourBandSpeechInterferenceLevelDb": 55,
"aboveCallerSpeechInterferenceLimit": true
}
}Limitations and assumptions
No intelligibility, privacy or acoustic-comfort certification is provided.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors. A successfully returned false flag is an evaluated outcome; its meaning is explained above.
Alternative or Complementary methods
Use Noise Dose Ergonomic TWA Percent Checker: Noise dose depends on an explicit criterion duration, criterion level and exchange rate. Those parameters define the caller model. For a complementary task, use Work-Rest Cycle Energy Expenditure Average Calculator: A mixed work/rest cycle uses time weighting to combine metabolic demand. Rest classification and its energy rate are separate evidence.
References
Similar or alternative tools
- Noise Dose Ergonomic TWA Percent Checker
Noise dose depends on an explicit criterion duration, criterion level and exchange rate. Those parameters define the caller model.
- Work-Rest Cycle Energy Expenditure Average Calculator
A mixed work/rest cycle uses time weighting to combine metabolic demand. Rest classification and its energy rate are separate evidence.