A/B Your Mix Against a Reference
Loading a reference and turning yours up until it "sounds close" is a volume check, not a comparison. Reference Check shows you exactly where your mix sits against a track that's already placed — frequency by frequency.
Compare your mix free →How to actually use a reference track
A reference track is the most reliable yardstick in mixing — a commercially finished song in your target lane that tells you where "done" is. The catch is that the human ear is terrible at A/B comparison: the louder of two tracks almost always sounds better, so an un-level-matched comparison just tells you which file is hotter. Real comparison means matching loudness first, then listening for specific, nameable differences — low-end weight, midrange clarity, high-end air, stereo width, and dynamics.
That's exactly what Reference Check automates. Upload your track and a placed reference, and TuneLens does the level-matching and the structured comparison for you.
Side-by-side scores
Your track and the reference scored on the same dimensions, so the gap is a number, not a vibe — and you can see which dimension is actually costing you.
A/B spectral overlay
Both spectra layered together with AI-flagged problem frequencies — the exact bands where your mix is heavy, thin, or harsh relative to the reference.
Stereo-width comparison
How wide each track sits across the stereo field, so you can tell whether yours is collapsing to mono or spread too thin where the reference stays focused.
Quick-fix audit
A written audit that turns the data into moves: which frequency to ease, where the low end is fighting itself, what's eating your headroom — in priority order.
Why this matters — especially for sync
Sync briefs frequently name a reference artist or track. "Sounds like X" isn't a vibe; it's a measurable target, and Reference Check tells you in concrete terms how far your production sits from it across mix, mastering, energy, and mood. Close that gap and you're not guessing whether you hit the brief — you can see it. Pair it with the Cue Score for overall readiness and the Brief Checker to confirm fit.
Even outside sync, references are how you escape the trap of mixing in a vacuum. A track can sound great on your monitors and fall apart everywhere else; a good reference catches that before release. For the listening technique behind the tool, read how to compare your mix to a reference track.
Frequently asked questions
How do I compare my mix to a reference track?
First level-match so loudness isn't fooling you, then compare specifics: low-end weight, midrange clarity, high-end air, stereo width, and dynamic range. Listening alone is unreliable because the louder track always sounds "better." TuneLens's Reference Check level-matches and runs the comparison for you, flagging the exact frequencies where your mix and the reference diverge.
Why does my mix sound quieter than the reference?
Usually it's not raw level — it's perceived loudness from masking, dynamic range, and frequency balance. A reference often has tighter low end and more controlled dynamics, which makes it feel louder and clearer at the same LUFS. Reference Check separates real level differences from perceived ones so you fix the cause, not the symptom.
What does Reference Check show me?
Side-by-side scores for your track and the reference, an A/B spectral overlay with AI-flagged problem frequencies, a stereo-width comparison, and a full written audit with quick-fix recommendations — so you can see exactly where the gap is and what to do about it.
How many reference tracks should I use?
One primary reference that genuinely matches your target — same genre, era, and energy — is enough for most decisions. A second can help check low end or stereo image. Too many references just average out into noise. For sync, the smartest reference is often the one named in the brief.