Learn to speak like real YouTubers, not robots.

Transform any YouTube video into authentic CEFR shadowing drills. Loop real-human vocal slices, record your voice, and get Gemini 3.8 Flash pitch contour and IPA phonetic grading in real time.

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Or try curated soundbites:

Ingest & CEFR Slicing

Gemini 3.8 Flash extracts natural 3–7s breathing phrases from authentic YouTube audio, classifying them from A2 Elementary to C1 Advanced colloquial fast-speech.

Zero robotic synthetic voices. 100% human cadence.

A-B Precision Loop

Synchronized YouTube player loops the exact millisecond soundbite. Read the target IPA transcription, discover linked contractions (e.g. “gonna”, “outta”), and internalize native pitch rhythm.

Variable speed control: 0.75x • 1.0x • 1.25x

Multimodal Acoustic Match

Record your voice. Gemini compares your acoustic pitch contour against the original YouTuber, highlighting word-by-word phonetic accuracy and advising on native intonation glides.

0-100% pronunciation score & pitch contour visual

Acoustic Demonstration

YouTuber Target vs Your Vocal Shadow

YouTuber Pitch Target

User Mic Contour

[00:13.96] “Men who sleep five hours...”[00:18.0] “...smaller testicles...”[00:22.18] “...seven hours or more.”

Acoustic Match: 94%•CEFR B2 Upper Intermediate

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