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Private beta

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TrkMstr is currently available to invited testers.

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Your private workspace

Create your TrkMstr account

Your projects, preferences, assets, and reference libraries sync securely across your devices.

Private beta Audio is processed in this browser. Results are previews—level-match and listen before release.

AI-assisted mastering plan

Detroit / Flint Style Rap

No project selected

Upload Unmastered Mix

Drag and drop your unmastered mix here, or click to browse. WAV/AIFF/FLAC preferred; MP3/M4A is accepted with a warning.

Beta limits: one WAV/AIFF/FLAC/MP3/M4A, up to 250 MB and 15 minutes. WAV is strongly preferred.

Master Check

Already have a mastered version? Drag it here to grade it against the selected reference library and get positives plus improvement notes.

Master Readiness --

Upload a mix to begin.

Reference Match --

Select or build a library.

Integrated Loudness --

Estimated from decoded audio.

True Peak Risk --

Checks clipping and ceiling risk.

Release Decision

No mix loaded
Upload a mix for a release call.

The app will tell you whether to master now, fix first, or get human help.

Underground Master Assist

Low-budget release workflow

    Tonal Balance

    Mix vs reference average

    Category Scores

    0-100

    Readiness Issues

    Fix before mastering

      Mastering Plan

      Click Master to choose the sound target.

      Local plan shown. Click AI Plan to ask OpenAI for an enhanced interpretation.

        Loud Master Mix Prep

        Step-by-step mix coaching for cleaner loudness

          Ask the loudness coach what to fix, where to fix it, and how much to move it.

          Coach ready.

          Technical Snapshot

          No mix loaded

          Section Analysis

          Loudest, bass-heavy, and dynamic-risk sections

          Create Account

          Projects, reference libraries, mastering preferences, and settings are saved separately for each account on this device.

          Create Reference Library

          Create Project

          Project Details

          Release Package

          Not checked

          Master Version History

          Recent Master Checks

          Library Details

          0 references

          Add reference tracks

          Upload legally owned WAV, AIFF, FLAC, MP3, or M4A files. They will be analyzed and added to this library.

          Ready for reference tracks.

          Analyzed Songs

          Suggested Songs

          0

          Master Sound Target

          Audition a short section first, then render the full master once the direction feels right.

          Preview will render automatically.
          Dynamics guard can stop before this target if the song starts getting crushed.

          Instant Master Goals

          Fast presets with guardrails

          Pick a goal to set loudness, sliders, version, and safety guards together.

          Critique Guard

          Prevents common AI-mastering failures

          Translation Guard

          Analyzing mix risks...
          Suggested master Analyzing best fit...

          Upload a mix and choose a reference library to get a recommendation.

          Render Versions

          Select one or more masters to save into this project.

          Balanced target.

          Finished Master

          Your processed master is ready.

          0:00 / 0:00
          Download WAV

          Admin Panel

          AI Analysis

          Local testing only: browser tokens are ignored in production unless explicitly enabled on the Worker. Set the real OpenAI key as a Cloudflare secret.

          Analysis Rules

          Recommended Integrations

          • Backend analysis worker: BS.1770 LUFS, true peak oversampling, deeper FFT, long-file processing.
          • Object storage: S3, R2, or Supabase Storage for reference libraries and version uploads.
          • Auth and billing: Supabase/Firebase/Auth0 plus Stripe for account tiers and usage limits.
          • Reports: PDF export, share links, client notes, and before/after history.
          • Audio playback: A/B level-matched player with loop regions and version comparison.

          Before you test

          To delete local beta data, use Reset Demo for the current workspace or delete individual projects and libraries. Problem reports exclude audio.

          Report a beta problem

          This beta downloads a JSON report you can send to the team. It does not upload anything automatically.