# PHASE//VOID product facts PHASE//VOID is a free browser music visualizer by Balance IT for audio-reactive live visuals and music videos. Open a local MP3 or WAV, connect a live audio input, and perform with twelve procedural visual worlds. Website: https://phasevoid.com/ Publisher: [Balance IT](https://balanceit.pl). Information reviewed: 2026-09-14. ## Capabilities - Local MP3 and WAV playback with play, pause, seek, restart and loop controls. Other audio formats depend on the browser decoder. - Microphone or audio-interface input through browser permission controls. Shared tab or system audio is available when the browser and selected sharing source provide a live audio track. - Twelve procedural worlds respond to bass, midrange, high-frequency energy and detected transients. Palettes, motion, intensity, bloom, geometry and render detail are adjustable. - Landscape 16:9, portrait 9:16, square 1:1, ultrawide 21:9 and 4:3 compositions. Custom dimensions accept 240 to 4096 pixels per side. - Title, subtitle and local PNG, JPEG or WebP artwork overlays appear in the generated output. Artwork files must be smaller than 15 MB. - Real-time video capture combines the visual canvas with connected audio. The studio offers WebM and MP4 configurations that the current browser reports as supported, with 30 or 60 fps targets. - PNG still export, fullscreen, a separate projector window, scene switching, freeze, blackout and gentler motion controls. - Saved looks and recent settings in browser storage, plus a downloadable session settings file for later import. No account is required. ## Requirements and limits - Visual generation requires JavaScript, WebGL2 and Web Audio. Recording additionally requires MediaRecorder and canvas capture support. - Recording runs in real time and needs the studio tab to remain visible. It is not an offline render queue or a faster-than-real-time video renderer. - A recording segment stops when a non-looping track ends, at 30 minutes, or at 750 MB. Save each segment before starting another recording; browser or device limits may stop capture earlier. - MP4 availability and audio/video codecs depend on the browser. Resolution and frame rate are targets, not guarantees for every GPU, encoder or long recording. - Auto scene switches on a timer. Transient detection is not BPM analysis, beat-grid synchronization or musical-phrase detection. - Shared audio capture varies by browser, operating system and selected sharing source. The app rejects a share that contains no live audio track. - Session settings do not contain the audio or artwork files. Those files must be opened again when restoring a session. - The projector is a browser window for another display; there is no native DMX, MIDI, NDI, Syphon, Spout or Ableton Link integration in this release. ## Media and privacy - Selected audio and artwork are processed on the user's device. The app does not upload selected media or generated exports. - Live capture starts through browser permission controls. Microphone and shared audio are not monitored back through the app's speakers. - Browser storage can remember scene controls, output choices, title/subtitle text and saved looks. It is not a cloud backup. - Cloudflare hosting still receives normal requests for the website and its assets. The current application includes no analytics or advertising SDK. ## Common questions ### Can I turn an MP3 or WAV into an audio-reactive video? Yes. Open a local MP3 or WAV, choose a visual world and an output size, then use Record video. PHASE//VOID records the generated canvas and connected audio in real time. Available WebM and MP4 formats depend on your browser. ### Does PHASE//VOID work with live music? Yes. You can connect a microphone or audio interface through the browser's audio input permission. Tab or system audio also works when the browser and selected source provide an audio track. The app does not monitor live input back to the speakers. ### Which video shapes can I create? Choose 16:9 landscape, 9:16 portrait, 1:1 square, 21:9 ultrawide or 4:3. Custom sizes accept 240 to 4096 pixels per side. Higher output dimensions require more GPU and encoder capacity. ### Can I export MP4? MP4 appears when the browser reports a supported recording configuration. H.264 with AAC is preferred when available; a generic browser MP4 encoder can use other audio codecs. WebM is another available option on supported browsers. The downloaded extension follows the actual output format. ### How long can I record? A segment stops at 30 minutes or 750 MB, or when a non-looping track finishes. Save the segment before recording another. Capture runs in real time with the studio tab visible, and a device or browser may reach its limits sooner. ### Are my audio and artwork uploaded? No. Selected media and generated exports stay on your device within the application workflow. Website and asset requests still reach Cloudflare hosting. Settings and text overlays can be remembered in this browser's local storage. ### Can I put the visuals on a projector or second screen? Yes. Open the projector window from Output, move it to the second display, then double-click its image for fullscreen. The browser must allow the popup. The projector shows the generated visual output, including any title or artwork overlays. ### Is Auto scene synchronized to beats or musical phrases? Auto scene changes worlds on a timer. The visuals respond to measured audio energy and transients, but the app does not calculate a BPM grid or identify musical phrases. Use manual scene switching for a specific musical moment. ### Is PHASE//VOID free, and do I need an account? The current studio is free to use and requires no account. You can save looks in this browser or download a session settings file. Audio and artwork are kept separate from session files. ## Guides - [Studio](https://phasevoid.com/): the interactive audio-reactive visualizer. - [MP3 and WAV music visualizer](https://phasevoid.com/guides/music-visualizer/): file playback, visual response, composition and session recall. - [Live visuals](https://phasevoid.com/guides/live-visuals/): audio inputs, sharing limits, performance controls and projector setup. - [Music videos for YouTube](https://phasevoid.com/guides/youtube-visualizer/): output shapes, recording formats and practical export checks. - [Privacy](https://phasevoid.com/privacy/): local media, browser storage and hosting requests.