Play, boost and clean up any long recording.
Upload 2-hour audio or video files, fast-forward and rewind, crank the volume, and enhance the speech of every speaker — then store your projects and export a clean WAV. Everything runs locally with the Web Audio API.
Audio & video player
One engine for MP3, WAV, M4A, MP4, MOV and WEBM — even 2-hour recordings.
Fast-forward & rewind
Jump ±10s / ±30s, scrub the timeline and change speed from 0.5× to 2×.
Volume boost
Amplify quiet recordings up to 300% with a clean gain stage + compressor.
Speech enhancement
High-pass, presence lift and compression make voices crisp and intelligible.
Store your work
Save projects with their settings to your private library and reopen anytime.
Export clean WAV
Render the boosted, enhanced result to a 16-bit WAV — processed in your browser.
Ready to clean up your audio?
Create a free account, drop in a file, and hear the difference in seconds.
Get started freeSpectralNode · Built with Next.js, the Web Audio API and Totalum.