Acoustic Sharpness Reference
Return the definition, unit, reference sound, and interpretation cautions for psychoacoustic sharpness.
Description
Psychoacoustic sharpness weights high-frequency specific loudness and is expressed in acum.
Psychoacoustic sharpness weights high-frequency specific loudness and is expressed in acum. It differs from a simple treble-level ratio.1
Return the definition, unit, reference sound, and interpretation cautions for psychoacoustic sharpness.
When to use Acoustic Sharpness Reference
Use this tool to return the definition, unit, reference sound, and interpretation cautions for psychoacoustic sharpness.
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 Acoustic Sharpness Reference 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 topic using the field table and calculation rules, then run the tool.
- Read source, statement, topic. 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 |
|---|---|---|---|
| topic | Reference topic to return. | string; one of "unit", "reference", "caution" | Required |
Choose an exact topic enum from the input table and run the lookup. The implementation selects a fixed local entry and returns source, statement and the selected topic. Matching is case-sensitive without trimming or free-text search.
result=stored entry for selected topic Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| source | Source used for the reference statement. | string |
| statement | Narrow reference statement for the selected topic. | string |
| topic | Selected reference topic. | string; one of "unit", "reference", "caution" |
{
"input": {
"topic": "unit"
},
"output": {
"source": "DIN 45692",
"statement": "Psychoacoustic sharpness is expressed in acum and weights high-frequency specific loudness more strongly.",
"topic": "unit"
}
}Limitations and assumptions
No loudness pattern, sharpness value or method equivalence is calculated. The source is a stored bibliographic label, not a fetched document; statements are not refreshed at runtime.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Extremely large text inputs are rejected. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Specific Loudness Reference: Return the role of critical-band rate in the Zwicker loudness model. For a complementary task, use Roughness 70 Hz Reference: Return the documented 70 Hz maximum of the 1-asp roughness reference while distinguishing that demonstration from a universal prediction.
References
-
Acoustic Sharpness Reference — tool.io
Similar or alternative tools
- Specific Loudness Reference
Return the role of critical-band rate in the Zwicker loudness model.
- Roughness 70 Hz Reference
Return the documented 70 Hz maximum of the 1-asp roughness reference while distinguishing that demonstration from a universal prediction.