FREE TOOL Broadcast Standard

Mix Analyzer & Mastering Check

Drop a song and press play. Realtime stats update 6×/sec with a 5s rolling average for precision.

Idle
Step 1
Drop your mix
WAV / MP3 / M4A / FLAC • stays in your browser
Target ~ -14 LUFS-I True peak ≤ -1.0 dBTP Mono-safe
Drag & drop to analyze
or click to choose a file (no upload)
Realtime stats update ~6×/sec and show a 5s rolling average.
Press Play to start realtime analysis
0:00 / 0:00
Vol
Realtime
Release stats
Green = in range • Yellow = close • Red = out (based on 5s rolling avg)
Watch True Peak, LUFS, Dynamics, Mono first.
Overall release readiness
Weighted score (0–100) based on loudness, peaks, dynamics, and mono safety.
%
Integrated Loudness
LUFS-I
Target-15 to -13
Computed once after load (stable).
Momentary Loudness
LUFS
Typical-18 to -8
Rolling avg over last ~5s.
True Peak (est.)
dBTP
Ceiling≤ -1.0
Computed once after load (stable).
Sample Peak (window)
dBFS
Safe≤ -1.0
Rolling avg over last ~5s.
Clipping Hits (window)
hits
Target0
Rolling avg, so spikes don’t flicker.
RMS (window)
dBFS
Typical-26 to -10
Rolling avg over last ~5s.
Crest Factor (dynamic)
dB
Good8 to 14
Rolling avg over last ~5s.
Mono Loss (window)
dB
Safe≤ 1.5
Rolling avg over last ~5s.
Stereo Correlation
corr
Safe≥ 0.05
Rolling avg over last ~5s.
Stereo Width (S/M)
ratio
Typical0.05 to 0.60
Rolling avg over last ~5s.
Warmth (150–450Hz)
ratio
Typical0.08 to 0.18
Spectrum proxy (needs playback).
Air (6–16kHz)
ratio
Typical0.03 to 0.10
Spectrum proxy (needs playback).
Sub/Bass (20–120Hz)
ratio
Typical0.05 to 0.16
Spectrum proxy (needs playback).

How to Read Your Mix Results

Integrated LUFS

Loudness Units Full Scale (Integrated) measures the average loudness of your entire track. Spotify and Apple Music typically normalize audio to -14 LUFS. If your mix is significantly louder (e.g., -8 LUFS), it will be turned down by streaming algorithms.

True Peak (dBTP)

Unlike standard sample peaks, True Peak accounts for inter-sample peaks that occur during digital-to-analog conversion. Keeping your ceiling at -1.0 dBTP ensures your music won't distort when converted to lossy formats like MP3 or AAC.

Crest Factor

This is the difference between your peak and RMS levels, representing your dynamic range. A Crest Factor of 8-14 dB is generally considered healthy. A very low number suggests your mix is over-compressed, while a very high number may lack "glue" and impact.

Stereo Correlation

Measures the phase relationship between left and right channels. A value of +1.0 is mono, while 0.0 is wide stereo. If your meter dips into the negative (red zone), you have phase cancellation issues that will make elements disappear on mono speakers.

Mono Loss

Calculates how much energy is lost when your stereo mix is summed to mono. Keeping this loss below 1.5 dB ensures your mix translates well to club systems, phones, and Bluetooth speakers.

Spectral Balance

Our AI analyzes Sub/Bass, Warmth, and Air. These ratios are genre-dependent, but significant deviations usually indicate a need for corrective EQ on your master bus to match commercial spectral profiles.

This tool utilizes the ITU-R BS.1770-4 standard for loudness measurement to provide broadcast-accurate technical data.

Moozix AI stem mixing interface showing final waveform output

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