RefTrack Pro

RefTrack Pro is a free, browser-based mix analysis and reference-matching tool from Driftlab Audio. Load a mix and, optionally, a reference track, and it breaks down loudness, dynamics, stereo image, tone balance, and streaming readiness in a few seconds, entirely in the browser. Nothing is uploaded. The analysis runs client-side, so audio never leaves the user's computer.

Unlike most loudness/LUFS tools, RefTrack Pro scores against genre-specific targets rather than one universal loudness number, so a trap master and a jazz master aren't judged by the same ruler. It's also upfront about the limits of its own measurements: short clips are flagged as low-confidence instead of returning falsely precise numbers, and spectrum bands below 30 Hz are marked as indicative-only, since a single FFT can't resolve them cleanly.

Key features:

• Mix vs. Reference and Before vs. After comparison modes.
• 7 genre profiles (EDM, Pop/Hip-Hop, Rock/Metal, Acoustic, Jazz/Classical, Podcast, General) with genre-aware loudness, dynamics, and scoring targets.
• Integrated loudness (ITU-R BS.1770-4), true peak with oversampled inter-sample detection, and EBU Tech 3342-conformant Loudness Range (LRA).
• 31-band, 1/3-octave spectrum analysis at mastering resolution, with zoom and pan.
• Stereo width, phase correlation, and mono-compatibility checking, with a live goniometer display.
• Loudness-matched A/B playback, so "sounds better" can't just mean "is louder".
• Mono/stereo toggle playback to check translation on a single speaker.
• Streaming and broadcast readiness check against 10 platform targets, including standard streaming, lossless, video hosting, physical media, and EU/US broadcast.
• Weighted match score against a reference track, broken into loudness, spectrum, dynamics, and stereo components.
• Session history and one-click PDF/HTML report export.
• Runs in any modern desktop or mobile browser. No installation, no account, no upload.

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