If おばさん and おばあさん sound identical to you, start by listening for duration. Japanese uses sound length to distinguish words. A vowel that lasts longer, or a consonant held before its release, can change what someone says even when the surrounding sounds seem familiar.
This guide focuses on two listening problems: hearing long vowels and hearing small っ, called sokuon. You will count a few examples, compare recordings, and move the same contrasts into short sentences. You only need a short source recording with reliable Japanese text and a way to replay it.
Start with mora counts
A mora is a basic timing unit in Japanese. It gives you a useful way to notice length without relying on English syllables. In slow practice, tap once for each unit. Tokyo University of Foreign Studies explains mora timing, including units that learners easily miss: ん, small っ, and the second part of a long vowel.
Try these counts:
- かさ: か・さ, two moras.
- おばさん: お・ば・さ・ん, four moras.
- おばあさん: お・ば・あ・さ・ん, five moras.
- きって: き・っ・て, three moras.
The dots mark practice units; they do not tell you to insert a break after every kana. In おばあさん, the あ continues the vowel in ば. In きって, the small っ occupies time without adding a separate “tsu” syllable.
Use tapping as scaffolding. After counting, listen again without tapping and try to keep the word connected. Natural speech should remain your reference for how the whole word sounds.
Keep a long vowel continuous
A long vowel extends the vowel sound. It does not require a fresh attack halfway through. In careful practice, give it two timing units while keeping the sound connected. The TUFS lesson on long vowels explains both that duration and its different spellings.
Compare these familiar pairs:
- おばさん, obasan: aunt; おばあさん, obaasan: grandmother.
- おじさん, ojisan: uncle; おじいさん, ojiisan: grandfather.
These words also have broader uses for people outside your family, so treat the glosses as learning cues. Context still determines the reference and appropriate wording.
Say おばあさん slowly as お・ば・あ・さ・ん. Keep the mouth position for the a sound through both ば and あ. Then return to the original recording. Listen for where the vowel ends and the s sound begins.
Katakana often makes the length visible with ー: コーヒー contains two long vowels. Hiragana uses vowel kana, as in おかあさん, おにいさん, and くうき. Keep the Japanese spelling beside any romanization; a simplified Latin spelling can hide the distinction you are practicing.
Give small っ its own time
Small っ lengthens the following consonant. With a stop consonant such as k, t, or p, you hold the closure before releasing it. With s, the friction continues longer. The TUFS explanation of sokuon describes this difference, so a silent pause is not a complete rule for every word.
Start with these contrasts:
- きて, kite: the te-form of 来る, “come.”
- きって, kitte: 切手, “postage stamp.”
- さき, saki: 先, “ahead” or “before,” depending on context.
- さっき, sakki: “a little while ago.”
For きって, say き, prepare your tongue for t, hold that closure for a practice beat, and release into て. Avoid saying き・つ・て. That inserts a full-sized つ sound and creates a different sequence.
For さっき, notice the extra closure before k. Once the isolated word feels manageable, use it in さっき見ました, “I saw it a little while ago.” Keep the extra consonant time when you connect it to the sentence.
Read the small kana accurately
Small っ and small ゃ, ゅ, ょ behave differently. The latter combine with the preceding kana into one mora: きゃ is one unit, while きや is two. TUFS explains these consonant-glide combinations with examples that connect spelling to pronunciation.
Count きょう as きょ・う: two moras. Count きって as き・っ・て: three. A rule such as “every written character gets a beat” would give the wrong result for きょ.
Also watch common long-vowel spellings. In words such as こうこう, おう represents a long o sound; in せんせい, えい is commonly realized as a long e sound. Do not turn those observations into an automatic rule for every vowel sequence. Word boundaries and the particular expression matter. Check the word in a reliable recording.
Before listening, circle the exact feature you are testing: the added vowel, small っ, or a kana combination. This gives each replay a concrete question.
Listen before revealing the spelling
Reading the answer first makes it difficult to tell whether you heard the contrast. For a listening check, hide the text and predict the spelling before you look.
Use this sequence with one short recorded phrase:
- Play it at normal speed with the transcript hidden.
- Write your best guess, including any long vowel or small っ.
- Replay once and mark the point where you remain uncertain.
- Reveal the reliable Japanese text and compare that exact point.
- Listen again while following the spelling, then hide it for one final replay.
An automatic transcript can supply a plausible word without proving that you identified its sounds. If the text seems inconsistent with the recording, check an authoritative teaching example or ask a teacher before using it as your answer key.
Keep a simple note such as “missed the closure before k.” That is more actionable than “bad at listening,” and it tells you what to attend to in the next example.
Record one contrast without adding stress
If you can hear the difference but struggle to produce it, record yourself saying one pair slowly, followed by a short sentence. Compare your version with the model at normal playback speed. Listen for the vowel ending or consonant release rather than judging your entire accent at once.
English speakers may accidentally add a strong stress when trying to preserve a timing unit. The TUFS lesson on moras and accent specifically warns that excessive emphasis can make a mora sound long.
Work on one adjustment per recording. For おばあさん, keep the a continuous. For きって, preserve the closure before t. Then compare another take. You do not need to make the target part louder to make it longer.
Tapping can help you find the missing unit, but finish with a connected version. If you have access to a teacher or language partner, ask a precise question: “Does this sound like きて or きって?” That feedback addresses the distinction you are testing.
Use a short practice session
Choose one vowel contrast and one consonant contrast for a session. The Japan Foundation's Irodori Starter Lesson 2 includes long-vowel and long-consonant practice on page L2-17. Its official Starter materials page provides the accompanying audio, so you can pair the printed exercises with their model recordings.
Try this suggested ten-minute sequence:
- Spend two minutes checking the spelling and mora counts.
- Spend three minutes listening with the text hidden, then checking it.
- Spend three minutes recording and comparing a few attempts.
- Spend two minutes hearing the target words inside short phrases.
These timings organize practice; they are not a promise about how quickly you will learn. If two words still sound alike, stay with a clear teaching recording. Add a conversational clip after you can identify what you are listening for.
In a later session, test the same contrast before reviewing the spelling. Keep recognition and pronunciation notes separate: hearing the right word and producing it are different tasks.
Check your understanding
Answer these questions before looking at the explanations:
- How many moras are in おばあさん?
- How many are in きょう?
- Should you pronounce a separate “tsu” in きって?
- What changes between さき and さっき?
The answers are five, two, no, and the duration of the k consonant. おばあさん divides into お・ば・あ・さ・ん. きょう divides into きょ・う. Small っ adds consonant time, not a spoken つ syllable.
Knowing those answers is a reading check. To test your ear, return to a recording with the text hidden. To test your pronunciation, make a new recording and compare the timing.
Bring the contrast back to your own sources
Kotoru is a local-first language-learning tool for working with language from real audio, media, text, captions, photos, PDFs, and documents. For this exercise, choose a short source with clear audio and reliable Japanese text, then focus on one length distinction in a useful sentence.
Try Kotoru anonymously with material you have permission to use. Keep one source sentence, one spelling question, and one contrast to revisit next time.