Source preflight

Analysis status

WAITING FOR AUDIO

Load a source to run the available technical checks.

Apple Digital Masters

WAITING

Load a source to assess the delivery starting point.

Dolby Atmos

WAITING

Load a source to identify the available format.

True Peak

WAITING

Awaiting source analysis.

Loudness

WAITING

Awaiting source analysis.

Phase

WAITING

Awaiting source analysis.

DC Offset

WAITING

Awaiting source analysis.

Clipping

WAITING

Awaiting source analysis.

Binaural metadata

WAITING

Load a source to identify the available format.

Atmos renderer errors

WAITING

Load a source to identify the available format.

Master decision desk

Choose a direction. Listen fairly. Deliver with proof.

Every decision below controls the active KERO mastering chain.

Master directions

Three controlled starting points

CURRENT
Fair audition

Original / Mastered

MASTERED

Mastered preview is active. Level match uses the source and target loudness estimate when available.

Delivery proof

The three decisions that matter

DeliveryAWAITING
SpaceAWAITING
LoudnessAWAITING

The full preflight remains available above for exact measurements and format scope.

KERO loudness shaper

Loudness without flattening

SOFT CLIP OFF
Peak conditioning is a gentle pre-limit stage; it is not a clipper.
Spatial decision

Make the field intentional

Centre anchorAWAITING
WidthAWAITING
Mono safetyAWAITING
Low endAWAITING

Use the spatial field below for the actual width, depth and centre moves — this is the decision readout.

Spatial meter

Stereo field

Spatial confidence · awaiting audio READY FOR AUDIO
Selected field pair—

Mastering chain

Every module listens to the same spatial model.

TONE

Musical tilt+0.2 dB

Live response · shelves and bell bands follow the Tone controls below.

Low shelf−0.6 dB
Sub bass+0.0 dB
Upper bass+0.0 dB
Mid range0.0 dB
Low mid+0.0 dB
Centre mid+0.0 dB
High mid+0.0 dB
High shelf+1.0 dB
Upper high+0.0 dB
Air+0.0 dB

NEURAL SPACE

Safe width78%
anchorednaturalwide
Mono bass120 Hz
20 Hz120 Hz220 Hz
Mid / side balance0%
mid0side
Centre shift0%
leftcentreright
Depth field62%
Centre focus65%

PEAK

True peak ceiling−1.0 dBTP
−3.0−2.0−1.00.0
Peak conditioningOFF
offgentlefirm
Intersample protectionSTANDARD
Intersample status—
Awaiting source analysis
Delivery profileCUSTOM

Sets a complete, safe starting point. Always verify the delivery requirements of your distributor or cutting engineer.

LIMIT

Target loudness
−9.0LUFS
INPUT
GR
0.0
MASTERED
0−6−12−18−24
Target loudness−9.0 LUFS
−16−12−9−6
Limiter amount32%
gentlecontrolleddense
Limiter contourDYNAMIC
OriginalPreview
Peak——
Loudness——
Intersample——
Final check

Mastering Guard

AWAITING ANALYSIS
Mono—
True peak—
Intersample—
Gain reduction—
Stereo field—
Bass stability—

Analyse a source to start the preflight check.

00:0000:00
Delta / auditionFULL MIX
Current source

Upload a track to begin

Format—Sample rate—Bit depth—Channels—