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Japanese pronunciation

発音はつおんhatsuon

Five vowels, even beats and a rise and fall in pitch

Japanese has five pure vowels, a small set of consonants and an even rhythm based on the mora, a unit of timing. Vowel length and doubled consonants change meaning, and standard Japanese uses pitch rather than stress to distinguish words.

Japanese is often called easy to pronounce, and in one sense it is: the sound inventory is small and the spelling in kana is almost perfectly regular. Beginners can read any word aloud once they know hiragana.

Sounding natural is another matter. The rhythm differs from that of English or German, vowel length is meaningful, and the melody of words follows a pitch accent that textbooks often ignore. Attention to these points early saves years of fossilised habits.

Vowels

The five vowels a, i, u, e, o are short, pure and never glide into diphthongs. The u is pronounced without rounded lips in standard Japanese, closer to a relaxed 'oo'. Each vowel can be long, and the difference matters: おばさん (obasan, aunt) against おばあさん (obāsan, grandmother), or ここ (koko, here) against こうこう (kōkō, high school).

In standard speech, i and u often become voiceless between voiceless consonants or at the end of a word: です (desu) sounds like 'dess', and した (shita) like 'shta'.

Mora: the beat of Japanese

Japanese rhythm is counted in morae rather than syllables. Every kana takes one beat, including the moraic n (ん), the small tsu (っ) and the second half of a long vowel. 日本 (Nihon) has three beats, ni-ho-n; 東京 (Tōkyō) has four, to-o-kyo-o; 切手 (kitte) has three, ki-t-te.

Holding each beat for the right length is what makes vowel length and doubled consonants audible. Haiku are counted in the same units: five, seven and five morae.

Consonants that need attention

Most consonants resemble their English counterparts. A few need practice.

r
A light tap of the tongue behind the teeth, between English r, l and d; never rolled or rounded.
f (in fu)
Made with both lips, as if blowing out a candle, not with teeth on lip.
n (ん)
Adapts to the next sound: m before b, p, m (shimbun), ng before k, g, nasal at the end.
tsu
A single sound as in 'cats', also at the start of a word: tsunami.
Double consonants
A short pause before the consonant: kitte, zasshi, Hokkaidō.
g
Some older and broadcast speakers nasalise g inside words (ng); both are correct.

Pitch accent

Standard Japanese distinguishes words by pitch, not by stress. Each mora is high or low, and the pattern belongs to the word. In Tokyo speech 箸 (hashi, chopsticks) falls from high to low, while 橋 (hashi, bridge) rises and then drops on a following particle. Context usually prevents misunderstanding, but correct pitch makes speech sound natural.

Patterns vary by region: the Kansai dialects of Osaka and Kyoto often have the opposite pitch to Tokyo, and some dialects in the north-east and Kyushu have little distinctive pitch. Accent dictionaries, such as the one published by the NHK Broadcasting Culture Research Institute, record the standard patterns.

Rōmaji and pronunciation

The Hepburn system, used in most textbooks, on station signs and in passports, spells sounds as English readers would expect: shi, chi, tsu, fu, ji. The Kunrei system, taught in Japanese schools, writes si, ti, tu, hu, zi. Both describe the same sounds. Long vowels are marked with a macron in modified Hepburn (Tōkyō) but are often dropped in everyday use (Tokyo), which hides a real distinction.

Frequently asked questions

Is Japanese pronunciation difficult?

The basic sounds are few and regular, so most learners can be understood quickly. Natural rhythm, long vowels and pitch accent take longer.

Does Japanese have stress?

Not in the English sense. Standard Japanese uses pitch accent: each mora is high or low, and the pattern can distinguish words such as hashi (chopsticks) and hashi (bridge).

How is the Japanese r pronounced?

As a quick tap of the tongue tip behind the upper teeth, similar to the t in American 'water'. It is neither the English r nor l.

Why is desu pronounced 'dess'?

In standard Japanese, i and u are often devoiced between or after voiceless consonants, so the final u of desu is barely heard.

Sources

1.The Japan Foundation – Japanese-Language Education (opens in a new tab) — The Japan Foundation
2.ローマ字のつづり方（昭和29年内閣告示第1号） (opens in a new tab) — 文化庁 (Agency for Cultural Affairs)
3.NHK放送文化研究所 (opens in a new tab) — NHK