Pre-Mastering Compiler & Vinyl Cut Simulator

The BKR Groove Sculptor (by Bunker Analog / Zombiephone FX) is a standalone professional utility for macOS designed specifically for mastering engineers and producers preparing audio material for vinyl pressing. It acts as a technical pre-mastering compiler and physical cut simulator, allowing users to sequence, analyze, and test their entire record digitally before it goes to the actual mechanical lacquer-cutting lathe.

Key Features

Independent Side Sequencing (Side A & Side B)

Import high-fidelity audio files (WAV, AIFF, FLAC) to sequence tracks, configure track order, and adjust inter-track silence gaps independently for both sides of the vinyl disc.

Physical Groove Simulation (Vinyl Check)

Mathematically models the mechanical cutting process based on target disc sizes (12", 10", or 7") and rotational speeds (33⅓ or 45 RPM). Instantly calculates mechanical cutting feasibility and provides precise level headroom margins (in dB) to prevent groove overlap.

Advanced Mastering Instrumentation

• Standard loudness metering (LUFS, LRA, Peak dB)
• Sibilance spectrum analyzer to prevent cutterhead overheating
• Phase scope (Lissajous / Goniometer)
• Low-frequency stereo image scope under 300 Hz (mono compatibility)

Technical Document Export

Generates professional, vector-based PDF documents ready for production — including a highly detailed Cue Sheet with album metadata and precise track timelines, alongside an integrated Vinyl Check Report for the pressing plant.

Quick Specs

• Platform: macOS 11.0 or later (Standalone desktop application)
• Plugin Formats: VST3 & AU
• Supported Audio Inputs: Linear PCM files (WAV, AIFF, FLAC)
• Disc Standards: 12", 10", and 7" formats at 33⅓ or 45 RPM