Mastering workstation · Linux

Make the mix sound finished.

Masterzic measures the track first, then proposes a complete mastering chain — corrective EQ, dynamics, loudness and true-peak limiting. Every value stays editable, every decision has a reason.

Install with Flatpak Command line

GTK4 / libadwaita · signed Flatpak repository · updates through GNOME Software

Masterzic main window with waveform, EQ, meters and automatic proposal

Inside the workstation

Live analysis, the dynamics display and the denoise panel, without the marketing mockups.

Masterzic main window with waveform, EQ, live spectrum and meters — The full chain: waveform, live spectrum, EQ, loudness and stereo meters.

Compressor and limiter transfer curve — Compressor and limiter curve, with the live operating point and gain reduction.

Stereo goniometer — Stereo field: correlation, width and mono risk.

Noise analysis and denoise backends — Noise analysis and the three denoise backends.

Built around what the track measures

A mastering chain, not a preset browser.

Analyze

Loudness, peak and spectrum

Integrated, short-term and momentary LUFS, true peak, LRA, crest, stereo correlation, noise floor and octave balance.

Propose

A chain with justifications

Every EQ cut, compressor threshold and limiter ceiling comes from a measurement, with a plain-language reason.

Shape

EQ, dynamics, limiter

6 to 12 EQ bands, a compressor with a live transfer curve, de-esser, stereo width and a true-peak brickwall limiter.

See

Live analysis while you listen

A live spectrum behind the EQ, a goniometer for the stereo field, gain-reduction history and large floating views.

Clean

Denoise without guessing

FFmpeg afftdn and a built-in spectral backend, with delay compensation, A/B and a solo of the removed signal.

Deliver

What you hear is what you export

Export the monitored chain as-is, or explicitly normalize to the target. WAV, FLAC, MP3 and Opus with dither.

Install

A signed Flatpak repository, served from this domain. No Flathub account, no build tools.

GNOME Software

Download the reference file and open it with GNOME Software; updates arrive with the rest of your apps.

Download .flatpakref

If the file downloads instead of opening, double-click it and choose “Software Install”.

Command line

Add the signed remote once, then install and update normally.

flatpak remote-add --if-not-exists --user --from \
  masterzic https://masterzic.metal3d.org/masterzic.flatpakrepo

flatpak install --user masterzic org.metal3d.Masterzic

flatpak update

Requires Flatpak and the GNOME runtime (installed automatically from Flathub). Linux x86_64.