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-(** Sonority module for determining the sonority of phonetic segments.
-
- This module provides functionality to determine the sonority of IPA
- (International Phonetic Alphabet) segments on a scale of 1 to 9, where:
- - 9: Low vowels (most sonorous)
- - 8: High vowels
- - 7: Glides/approximants
- - 6: Liquids
- - 5: Nasals
- - 4: Voiced fricatives
- - 3: Voiceless fricatives
- - 2: Voiced stops
- - 1: Voiceless stops (least sonorous)
-
- Example usage:
- {[
- (* Initialize the module with the data directory *)
- Sonority.init "./data";;
-
- (* Get sonority values for IPA segments *)
- Sonority.sonority "a";;
-
- (* Returns 9 - low vowel *)
- Sonority.sonority "p";;
-
- (* Returns 1 - voiceless stop *)
- Sonority.sonority "l" (* Returns 6 - liquid *)
- ]} *)
-
-val init : string -> unit
-(** Initialize the sonority module with the data directory. This must be called
- before using other functions.
- @param data_dir The directory containing the ipa_all.csv file
- @raise Sys_error if the CSV file cannot be found or read *)
-
-val sonority : string -> int
-(** Get the sonority value (1-9) for an IPA character.
- @param ipa The IPA character/segment to analyze
- @return The sonority value between 1 and 9
- @raise Failure if the IPA segment is not recognized *)
-
-val sonority_from_features : Feature.segment -> int
-(** Get the sonority value from a feature specification. This is useful when you
- already have the phonological features of a segment and don't need to look
- it up by IPA symbol.
- @param segment The list of feature specifications
- @return The sonority value between 1 and 9 *)