Random Sound Inventory is a program that generates consonant and vowel sound inventories consisting, respectively, of random sets of IPA symbols. It also generates sets of hypothetical words that consist of random sequences of these symbols, with no constraints on their combinatory possibilities. It is intended as a teaching device to introduce the subject matter of phonology by illustrating how real language sound systems differ from simple collections of sounds with unrestricted patterning. For comparison purposes, the program can display phonemic inventories from four real languages: English, Korean, (modern) Hebrew, and Thai.

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