Description
Compare two supplied values of a named phonological feature.
Language-processing records distinguish tokens, code points, UTF-16 positions and UTF-8 byte offsets. Tag grammars and local transition checks do not validate a full annotation sequence. Log-loss units determine perplexity conversion, while identifier suffixes may be textual labels rather than ordinary decimal numbers.
Compare two supplied values of a named phonological feature.
When to use this tool
Use Phoneme Feature Single Contrast when you already have firstSymbol, secondSymbol, featureName, firstValue, secondValue and need to compare two supplied values of a named phonological feature.
How to use the tool and how it works
- Enter firstSymbol, secondSymbol, featureName, firstValue, secondValue. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read contrasts, label. Inspect contrasts before interpreting the associated values.
Require symbol/feature labels nonempty; contrasts=firstValue!==secondValue and preserve both supplied values in a label.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| firstSymbol | First Symbol | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192. |
| secondSymbol | Second Symbol | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192. |
| featureName | Feature Name | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192. |
| firstValue | First Value | Required. Text; maximum UTF-16 length 8192. |
| secondValue | Second Value | Required. Text; maximum UTF-16 length 8192. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| contrasts | Contrasts | Required. Boolean. |
| label | Label | Required. Text; maximum UTF-16 length 8192. |
{
"input": {
"firstSymbol": "p",
"secondSymbol": "b",
"featureName": "voice",
"firstValue": "-",
"secondValue": "+"
},
"output": {
"contrasts": true,
"label": "p/b; voice: - → +"
}
}Limitations and assumptions
- No phoneme, feature inventory, transcription, phonetic evidence or actual contrast 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.
Alternative or Complementary methods
Validate the complete corpus format, tokenizer, annotation sequence and scoring convention. Use a full parser or model evaluation when needed, preserving the exact offset unit, vocabulary and log base rather than inferring them from a local transformation.
References
Similar or alternative tools
- BIOES Single Token Transition Label
Check one supplied local BIOES tag transition.
- Pronunciation Lexicon Alternative Index
Label a supplied pronunciation-lexicon alternative index.