What this guide is for

The assignment is a contrastive analysis of Korean and Japanese pronunciation. It is written so a Japanese-speaking learner of Korean, or a Korean-speaking learner of Japanese, can see where the systems do not map one-to-one.

It is not a full phonology textbook, and it is not a grammar paper.

Consonants that do not line up

Korean distinguishes a three-way contrast in stops and affricates that Japanese does not match. Japanese has a voicing contrast and processes such as rendaku that Korean learners may under-use. Liquid sounds, final consonants, and the Korean tensed series are frequent points of transfer.

Give a short pair of examples with IPA from a named chart.

Vowels, timing, and prosody

The vowel inventories differ, and so does timing: Japanese is often described in moras, with distinctive length; Korean vowel length is not the same teaching point for most modern Seoul speakers. Pitch accent in Japanese has no simple equivalent in Seoul Korean intonation.

A useful exercise is to have learners hear a minimal or near-minimal pair and say what they used from their first language.

Limits

Dialects on both sides change the picture — Osaka pitch, Gyeongsang tones, and loanword adaptation all matter. A short course paper should say which variety it describes. This is a pronunciation guide, not a claim that one language is harder.

Sources

1. Sohn, Ho-Min, and colleagues, or a named Korean phonology textbook cited in the source report, for Korean consonants, vowels, and tenseness.
2. Vance, T. J. (2008). The sounds of Japanese. Cambridge University Press; or a named Japanese phonetics textbook used in the source.
3. The International Phonetic Association. Handbook of the International Phonetic Association. Cambridge University Press. Use IPA symbols from a named chart.

Last updated: November 13, 2026