Launched this week
LufsMaster
Free browser-based LUFS meter, stereo imager & EQ analyzer
5 followers
Free browser-based LUFS meter, stereo imager & EQ analyzer
5 followers
Free browser-based audio mastering analyzer. Real-time LUFS meter, stereo imager, EQ analyzer with resonance detection — plus a "listen as Spotify/YouTube/Apple Music" preview mode. 100% local processing via Web Audio API. No upload, no account, no server.
how does the resonance detection actually identify problematic frequencies in real time without a noticeable CPU hit, or is it more of a rough visual guide?
@msunar82939 Good question — it's a real-time heuristic, but honestly closer to a visual guide than a precision tool.
Each frame it reads the FFT, builds a smoothed 1/3-octave reference, and flags peaks that rise ~9dB above it (spectral contrast). It runs in requestAnimationFrame, single pass over the bins, so it's very light on CPU.
The honest limitation: real resonance detection needs a time-domain part — tracking what rings out over time — which this doesn't do yet. So it's good for spotting candidate problem frequencies at a glance, but it's not doing Soothe2-level masking analysis. Treat it as a pointer, not gospel. Thanks for the great question!
The resonance detection in the EQ analyzer is a really smart touch, makes it so much easier to spot problem frequencies without squinting at the spectrum. Love that it all runs locally too, no upload step is a relief.
@melahatdnda0pp Thank you for giving me feedback on the web function