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AnimalMonk/audio-mastering-suite

sourceHugging Facemitupdated 6mo agoView on Hugging Face

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App README

Audio Mastering Suite

by AnimalMonk

A web-based audio mastering tool built with Gradio and Spotify's Pedalboard DSP library.

Features

—3-Band EQ - Lows (200 Hz shelf), Mids (1.2 kHz peak), Highs (6 kHz shelf), each +/-3 dB
—Bass Boost - Sub-bass enhancement (0-3 dB) with adjustable frequency (50-60 Hz)
—Compression - Mastering glue calibrated for -18 LUFS working level (ratio 1.1:1-2.5:1, threshold -14 to -22 dB)
—Limiter - Safety brick-wall at -1 dB ceiling to catch stray transients
—Stereo Width - M/S matrix stereo image control (80%-150%)
—LUFS Targeting - Post-chain normalization to streaming (-14) or CD (-11) standards
—Pre-Gain Normalization - Hot inputs (e.g. Suno at -9 LUFS) are dropped to -18 LUFS before processing to prevent EQ clipping
—Genre Presets - Modern Pop, Vintage Analog, Heavy Trap/EDM, Hard Rock/Metal, Acoustic & Vocal, Deep Ambient
—Visualization - Before/after waveform and spectrum comparison
—Statistics - Original vs mastered LUFS, true peak, limiter gain reduction

Signal Flow

Pre-Gain Drop (normalize to -18 LUFS)
  -> HPF 20 Hz + LPF 20 kHz (12 dB/oct)
  -> EQ (Bass Boost, Lows, Highs, Mids)
  -> Stereo Width (M/S processing)
  -> Compression (no makeup gain)
  -> Target LUFS Normalization (pyloudnorm)
  -> Safety Limiter (-1 dB ceiling)

Usage

Upload a WAV or MP3 file, adjust the controls or pick a preset, and click "Master It!"