HengHeng
Your vocal-practice companion. With professional acoustic algorithms and AI, HengHeng hears what your voice is doing, practices with you day after day, and helps you watch yourself improve — and climb toward your vocal peak.
Four walls of practice — HengHeng gets you over
No coach?
HengHeng packs pro-style feedback into a webpage, telling you live what's on and what's off.
Can't hear yourself?
Your voice becomes curves and scores — your ear's blind spot turns into visual feedback.
Too boring to keep up?
Every drill is a little game; chasing a high score keeps you coming back.
No timely feedback?
Every note is scored the instant you sing it — no waiting for playback or a coach's review.
A toolkit across pitch, breath & resonance
Open any one — get the point in a second.
Challenges
Real vocal science behind every bit of feedback
Not vibes — acoustically grounded and quantified.
Grounded in acoustics
Pitch from fundamental frequency, resonance from formants, breath from support stability — the hard metrics of vocal science.
Real-time DSP
Live pitch, breath and resonance tracking — same lineage as pro tuners and spectral analysis, right in your browser.
AI turns data into a plan
More than a score: it shows what's weak and what to drill next — the knowledgeable voice beside you.
Progress you can measure
Turns “did that sound good?” into curves and scores — every small daily change on the record.
There's a version of you who wants a steadier voice
Browser, iOS, Android — whichever's in hand
The web version works today; native iOS and Android apps are in development.