Play Gesture Synth on Mobile

Choose a Supported Mobile Browser

On Android, begin with an up-to-date Chrome browser in a normal top-level tab. The page needs camera access, JavaScript, WebAssembly and Web Audio. Avoid opening the instrument inside an in-app social-media preview because embedded browsers can hide permission controls or suspend audio differently from the full browser.

On iPhone or iPad, try current Safari first. Camera and audio policies change across iOS releases, and some devices may use compatibility fallbacks. If Start cannot open the camera or the audio export path is unavailable, the page reports the missing capability rather than uploading the performance to another service.

Check the complete browser compatibility table →

Use Landscape Orientation and a Stable Stand

Rotate the device to landscape before pressing Start and place it on a stand. Holding the phone consumes one or both hands and makes the camera move whenever you change a gesture. A fixed device also keeps the left and right sides of the mirrored preview predictable.

Move back until fingertips, palms and wrists remain visible at a comfortable height. Keep browser controls from covering the instrument and lock orientation when the operating system allows it. Soft front light and a quiet background help more than moving the hands rapidly near the lens.

• Place the phone or tablet near eye or upper-chest height.
• Leave horizontal space between the two hands.
• Keep the charging cable clear of the stand and camera.
• Use a landscape viewport before granting camera access.

Follow the webcam framing checklist →

Allow Camera Access and Unlock Mobile Audio

Select Start and allow video camera access when the browser asks. GestureSynth does not request microphone permission. If permission was denied earlier, open the browser site controls, allow the camera for gesturesynth.me, reload the page and press Start again.

Mobile browsers require a deliberate tap before Web Audio can run. Press Start after returning from a background tab so the AudioContext can resume. Begin at a modest device volume, confirm the in-app mute is off and raise the right hand gradually after both hand indicators become active.

Fix a blocked Gesture Synth camera → · Fix silent browser audio →

Reduce Heat, Battery and Bluetooth Delay

Hand tracking, camera capture, animation and audio synthesis run at the same time. Close video calls and graphics-heavy tabs, connect power for a longer session and enable Low-performance mode in Settings if the device becomes hot or landmark updates begin to skip.

Bluetooth headphones can add audio buffering even when hand tracking is responsive. Compare the built-in speaker or wired headphones when the visual chord changes before the sound. Returning from the background may also pause the camera or audio; use Stop, then Start, rather than repeatedly opening more tabs.

Diagnose tracking and audio lag →