ONLINE STUDIO MASTERING
Upload your mix. Find its balance. Make it yours.
LUFS meter
No audio loadedK-weighted loudness with gated integrated measurement. Short-term and momentary follow the playhead after 3 s / 400 ms. Values include preview gain; integrated covers the full track.
DSP Test
Playback onlyHear estimated streaming loudness. Choose a service, then use Play above. Switch services while listening.
Bypass restores normal A/B playback, including reference loudness matching. Downloads retain the rendered master.
About these simulations
Single-track gain simulation, not a codec audition or an exact platform prediction. No AAC, Ogg, Opus, device EQ, platform limiter or album normalization is emulated. Presets other than Spotify Normal are approximate working values. YouTube Music uses a −7 LUFS experimental estimate and can vary by player; use Custom to compare another level. Boost protection uses sample peaks, not true peaks.
References: Spotify normalization, Apple Digital Masters, MeterPlugs platform guide and YouTube Music estimate. Settings and platform behavior may change.
Tonal balance analyser
Upload to analyseRelative spectral energy across sampled sections of the full track, independent of playback volume. Upload a tonal reference below to compare frequency balance. There is no universal ideal curve.
Parametric EQ
Five bell filters · 20 Hz–20 kHz · ±12 dB · Q 0.20–10.00. EQ is included in the next master render and download. The curve shows only this EQ, before dynamics and loudness processing.
Use an audio file as your tonal reference.
Bring a track whose tonal character you love. Its frequency balance will guide your next master.
WAV, MP3, FLAC, M4A · Up to 100 MB / 5 minutes · Kept in your browser.