SSS Transpose

Change pitch & speed without affecting tone. AB-loop any range. EQ, vocal remover, captions. Works on HTML5 media sites.

Found the perfect cover, but it's in B♭ and you sing in G? That solo too fast to catch by ear? That K-pop choreo phrase impossible at full speed? SSS Transpose fixes the exact moment your practice usually breaks — right inside the video page. No app to open. No upload. No account. Built on the Signalsmith pitch engine for clean transposition in the browser. Works on video and audio sites that use standard HTML5 media. ━━━━━━━━━━━━━━━━━━━━ WHAT YOU CAN ACTUALLY DO ━━━━━━━━━━━━━━━━━━━━ • Slow any video to 10% — not 25% — and finally hear every note, every syllable, every step • Drop a song two semitones to sing it in YOUR range, and finish the cover you've been avoiding • Set a tight A→B loop on the one bar you keep missing — grind it into muscle memory • Save up to 9 loop slots per song — recall verse, chorus, solo with one key • Pull captions or paste your own lyrics into a side panel — perfect for shadowing and language practice • Remove vocals for instant karaoke (Pro), or boost the bass to lock into the bass line (Free) • Tune to A=432 Hz, 442 Hz, or any reference your ensemble uses ━━━━━━━━━━━━━━━━━━━━ FREE — and we mean free ━━━━━━━━━━━━━━━━━━━━ No upsell wall hiding the basics. All of this ships in the free tier: • Pitch shift ±12 semitones • Speed 10% – 250% • Reference tuning Hz (440, 432, 442, custom) • Unlimited A→B loop + 3 saved AB slots • Captions / lyrics panel — media captions or paste your own • EQ with Vocal preset + Bass & Treble sliders • Reverb, bookmarks, range panel (mm:ss.fff precision) • Customizable hotkeys, per-tab volume, per-video memory • Dark and light themes • 49 languages ━━━━━━━━━━━━━━━━━━━━ WHO IT'S FOR ━━━━━━━━━━━━━━━━━━━━ • Language learners — slow native speech to 10%, loop the phrase, follow captions • Dance practitioners — slow choreography frame-precise, loop the 8-count • Vocalists & voice coaches — drop songs into your range, kill the vocal track for instant karaoke • Musicians — nail the solo, learn the riff, tune the ensemble to A=432 • Podcast & lecture listeners — speed up dictation, bookmark key moments • Sign language students — slow signed video, loop the sequence • Producers & hobby DJs — match keys, audition pitch shifts ━━━━━━━━━━━━━━━━━━━━ PRO — 7-day free trial, no credit card ━━━━━━━━━━━━━━━━━━━━ • Vocal Remove / karaoke (L−R center-channel cancellation) • Formant preservation — voices stay natural at extreme pitch shifts • 5-band graphic EQ (Bass / Low / Mid / High / Treble) • 6 more AB slots (9 total — full-song practice) • Practice statistics — see what you've actually drilled • Inline hotkey rebind — hover any control, click, reassign • Layout edit mode — drag-rearrange the panel • Hotkey export / import — move your setup between machines • Custom theme colors ━━━━━━━━━━━━━━━━━━━━ PRIVACY YOU CAN VERIFY ━━━━━━━━━━━━━━━━━━━━ No sign-in. No account. No telemetry. No cloud upload of your practice. Pro unlocks via license key — not an account. Everything runs locally inside your browser. Built by a working musician, in active development. Your feedback ships in the next update. Install free. Practice today.