Your voice, measured sound by sound.

No speech recognizer — your voice itself is compared with reference recordings (the teacher's recordings of every SPSV2 sound, plus dictionary word recordings) and judged by its features: voiced or unvoiced, long 全角 or short 半角, steady or changing, halt / flow / nasal, stressed or not, and whether a helper schwa (ə) follows.

1. Pick a target sound — choose the SPSV2 sign you want to practise (and, for a consonant, whether you will add its helper schwa). The page checks each of its features. (What did I say?, which shows signs for anything you say, is admin-only for now.)
2. Press the mic and say one sound (e.g. ā), a consonant with or without its helper schwa (e.g. n or nə, p or pə), or a short word.
3. Stop — press the mic again, or just stay quiet for a moment and it stops by itself.
4. Read the result — each card shows the features the sign was judged from. Tap ▶, a sign, or the timeline to hear that part of your voice again.

Best results: a quiet room, the mic about a hand's width from your mouth, and one clear sound at a time. Sounds with a yellow highlight were hard to judge — check the “Also possible” list on their card. Some pairs sound almost the same on their own (f / th, m / n, y / ē, w / ū), so treat those as close matches.

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I will say it: on its own with its helper schwa (+ə)

Pick the sound you want to practise.

Voice

Tap to record

Ready — click the microphone and say a sound.

Your signs (SPSV2)

Signs will appear here…

Compared with the reference recordings. Tap a sign to hear that part. Yellow = hard to judge (see “Also possible”). Colours: stressed vowel · voiced · unvoiced.

Your voice, sound by sound

How each sign was judged