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How Diagnosis Works

Different first languages break different sounds

Our own AI models correct your pronunciation precisely.

Technology

We identify your language background from voice alone

Speech recognition reads your intonation and identifies which language group you belong to.

STEP 01

We analyze the raw signal

Turning speech into text loses intonation and pitch. We analyze the original waveform.

STEP 02

We extract error patterns

Our own speech model classifies the speaker’s language group, then pulls its error patterns.

STEP 03

We coach the sounds you miss

Coaching follows your language’s error patterns during the call.

Thirty seconds of speech tells us your language group.

Accent test

What We Analyze

We break sound into three axes

Animated articulation of a final ㄹ
Axis 01

Phoneme level

We separate final consonants and vowels to find which sound went wrong

Animation marking where in the mouth the sound is formed
Axis 02

Intonation & pitch

We analyze the actual waveform for fine-grained pronunciation

Animation showing breath strength for ㅋ
Axis 03

Aspirated & tense

Plain, aspirated and tense consonants are read from breath strength.

Native Language

The same sentence breaks differently by country

Chinese speakers

Animation of stopping with the tongue held in place on a final consonant

Endings disappear

We coach you to stop with the tongue in place.

Japanese speakers

Mouth-shape animation showing an extra vowel slipping into 바니

Extra vowels slip in

We coach you not to carry the final consonant over.

English speakers

Animation of holding the mouth shape for ㅗ

Vowels glide

We coach you to hold the mouth shape.

Every language brings its own error pattern

See the sounds your language group gets wrong.

Practice my weak sounds

Pipeline

The diagrams are computed, not drawn

We vectorize the reference, skeletonize the tract and measure duct width at every point. Constrictions are never placed by hand.

Pipeline diagram from reference vectorization to automatic constriction detection

ㄱ release · 127 centerline points · the constriction is taken automatically as the narrowest duct width inside the search range.

Report

Get BeaverTalk’s detailed pronunciation report

Check your pronunciation and fix it

Pronunciation score by call

Get an overall score from every call

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Accuracy by phoneme

Pinpoints which sound collapses

  • Final ㄹ34%
  • ㅓ / ㅗ58%
  • ㅅ / ㅆ82%
  • Final ㄴ91%

Call on the web and get your score and missed sounds right after.

Call Beaver

Diagnosis Example

This is what one diagnosis looks like

Taken from an error common among Chinese speakers.

Manner of articulation

You are producing a nasal as a stop

Animation of a stop burst like ㄱ
What you say now
Animation of a nasal like ㄴ, air sent through the nose
What it should be

Send the air through the nose. Right now you burst it out at once.

This is how it sounds

ㄴ → ㄱㅇ받침 → ㄱ받침

Practice with this pair

ㄴ / ㄱㅇ받침 / ㄱ받침

Measure your accent score

  • Identify which accent you have
  • Get your frequent misses as cards
  • Publish the result as a shareable image
  • No sign-up needed
Accent test