Peutz ALcons Estimate
Apply the simplified Peutz far-field estimate 200 r² T60²/(VQ), preserving the uncapped result and a 100-percent display cap.
Description
The simplified Peutz far-field relation estimates consonant articulation loss from room geometry and decay assumptions.
The simplified Peutz far-field relation estimates consonant articulation loss from room geometry and decay assumptions.1
Apply the simplified Peutz far-field estimate 200 r² T60²/(VQ), preserving the uncapped result and a 100-percent display cap.
When to use Peutz ALcons Estimate
Use this tool to apply the simplified Peutz far-field estimate 200 r² T60²/(VQ), preserving the uncapped result and a 100-percent display cap.
Choose a supported reference topic, run an input-free reference with an empty object, or prepare the measured values and caller-supplied test records requested. Keep acoustic metrics, frequency, units and test conditions consistent.
How to use Peutz ALcons Estimate and understand its results
- Choose a supported reference topic, run an input-free reference with an empty object, or prepare the measured values and caller-supplied test records requested. Keep acoustic metrics, frequency, units and test conditions consistent.
- Enter directivityFactor, distanceMeters, reverberationTimeSeconds, roomVolumeCubicMeters using the field table and calculation rules, then run the tool.
- Read rawArticulationLossPercent, cappedArticulationLossPercent. 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 |
|---|---|---|---|
| directivityFactor | Source directivity factor | number; minimum: 0 | Required |
| distanceMeters | Source-receiver distance (m) | number; minimum: 0 | Required |
| reverberationTimeSeconds | Reverberation time (s) | number; minimum: 0 | Required |
| roomVolumeCubicMeters | Room volume (m³) | number; minimum: 0 | Required |
Enter strictly positive finite distance, reverberation time, volume and directivity factor. Compute directly, with a logarithmic fallback for intermediate numerical range problems; return raw and capped percentages.
raw%=200r²T60²/(VQ); display=min(100,raw) Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| rawArticulationLossPercent | Raw articulation-loss estimate (%) | number; minimum: 0 |
| cappedArticulationLossPercent | Capped articulation-loss estimate (%) | number; minimum: 0; maximum: 100 |
{
"input": {
"directivityFactor": 2,
"distanceMeters": 10,
"reverberationTimeSeconds": 1,
"roomVolumeCubicMeters": 1000
},
"output": {
"rawArticulationLossPercent": 10,
"cappedArticulationLossPercent": 10
}
}Limitations and assumptions
Raw values above 100 remain visible. This simplified model omits noise and detailed room conditions and does not calculate standardized STI or demonstrate intelligibility.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Speech Transmission Index Method Reference: Summarize the scope and limitations of the standardized STI method. For a complementary task, use Room-Type RT60 Reference: Return cautious room-type reverberation-time design context without asserting a universal numeric target.
References
-
Peutz ALcons Estimate — tool.io
Similar or alternative tools
- Speech Transmission Index Method Reference
Summarize the scope and limitations of the standardized STI method.
- Room-Type RT60 Reference
Return cautious room-type reverberation-time design context without asserting a universal numeric target.