Waveforge

Precision DJ Loudness & 4× True-Peak Mastering Workstation for Touring DJs and Producers

100% Offline, Local-First ITU-R BS.1770-4 Normalization & Lossless MP3 FrameGain with Immutable Source Protection

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What is Waveforge?

Waveforge is an offline desktop audio mastering and crate loudness calibration workstation engineered for touring DJs, club residents, and electronic music producers. Built in Rust with 64-bit double-precision DSP, Waveforge removes booth volume jumps and mixer DAC clipping across mixed crates of masters from different eras and labels.

Instead of relying on software-only Auto-Gain flags that disappear when a USB stick is loaded onto standalone club hardware, Waveforge calibrates actual audio headroom against ITU-R BS.1770-4 integrated loudness (LUFS_int) and Representative DJ Drop Loudness (LUFS_rep) while keeping original source files untouched.

Download Waveforge v1.4.0 Free Starter at waveforge-app.com · Try Free Online DJ Engineering Tools

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Audio DSP & Safety Architecture

How Waveforge Processes Crates Safely

[Local DJ Crate: WAV / AIFF / FLAC / ALAC / MP3 / M4A] (Strictly Read-Only Source)
                     │
                     ▼
┌─────────────────────────────────────────────────────────────────────────┐
│          64-BIT FLOAT LOUDNESS & INTERSAMPLE ANALYSIS ENGINE            │
│  • ITU-R BS.1770-4 K-Weighting + Dual-Stage Gating (-70 LUFS / -10 LU)  │
│  • Representative DJ Loudness (Upper Energy / Drop Focus LUFS_rep)      │
│  • 4× Oversampled Polyphase Sinc True-Peak Detection (Annex 2 dBTP)     │
└────────────────────────────────────┬────────────────────────────────────┘
                                     │
                     ┌───────────────┴───────────────┐
                     ▼                               ▼
       [Preserve Dynamics Mode]            [Match Target Mode]
       • Pure Linear Scalar Gain           • Full Target Gain Plan
       • 0% Limiting / No Compression      • 4× Lookahead Brickwall Limiter
       • Lossless MP3 global_gain (±1.5dB)   Engages Only Above Ceiling
                     │                               │
                     └───────────────┬───────────────┘
                                     ▼
┌─────────────────────────────────────────────────────────────────────────┐
│          ATOMIC STAGING & INDEPENDENT DISK VERIFICATION GATE            │
│  • Writes to Separate Output Folder via Atomic .tmp File Staging        │
│  • Preserves ID3v2, Rekordbox GEOB, Traktor NML, Vorbis & RIFF Chunks   │
│  • Reopens Every Output File from Disk to Independently Remeasure LUFS  │
└─────────────────────────────────────────────────────────────────────────┘

1. ITU-R BS.1770-4 & Representative Drop Calibration:
   • Computes both Integrated Loudness (LUFS_int) and drop-focused Representative DJ Loudness (LUFS_rep) so long atmospheric intros do not push drop levels past club headroom.
   • Includes booth presets (-9.0 LUFS Peak-Time, -11.0 LUFS Club Standard, -12.0 LUFS Dynamic Club, -14.0 LUFS Streaming) alongside continuous manual target selection.
2. 4× Oversampled True-Peak Protection:
   • Applies ITU-R BS.1770-4 Annex 2 polyphase sinc interpolation to catch intersample overshoots before they clip Pioneer CDJ or DJM DAC stages (-1.0 dBTP default ceiling).
3. Lossless MP3 FrameGain Without Re-Encoding:
   • In PreserveDynamics, modifies MPEG global_gain bitstream fields directly in 1.505 dB steps without decode/re-encode generational loss, retaining ID3 tags and cue chunks.
4. Independent Physical Disk Remeasurement:
   • Every exported file is reopened directly from storage through a fresh decoder pass to verify decodable frames, metadata retention, and post-write LUFS and dBTP readings.

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The 7-Stage DJ Mastering Workflow

[1. Drop Crate] -> [2. Gain Plan] -> [3. Inspect] -> [4. Waveform HUD] -> [5. Trial / Key] -> [6. Disk Audit] -> [7. Multi-Deck Mixer]
 Read-Only Scan     LUFS vs dBTP     BS.1770-4      Original vs Out     10 Free / Ed25519    5-Gate Receipt    Raw vs Norm A/B

Stage	View / Component	What It Does
1. Crate Dropzone	Drag & Drop Ingestion	Scans recursive folders locally for WAV, AIFF, FLAC, MP3, ALAC, AAC, and M4A without modifying source files.
2. Batch Planning	Loudness & Gain Matrix	Displays format, sample rate, LUFS_int, LUFS_rep, Sample Peak, 4× True Peak (dBTP), and transparent gain / headroom shortfall.
3. Track Inspector	Hardware AudioMeter	Real-time BS.1770-4 metering, peak-hold notch, codec telemetry, and inline stereo waveform preview.
4. Waveform HUD	Dual-Lane Comparison	Synchronized Original (cyan) vs. Processed (orange) waveform lanes with 2x/4x/8x zoom and -1.0 dBTP ceiling guides.
5. Free Trial & Offline Activation	10 Free Exports / Ed25519 Unlock	Includes 10 verified exports right out of the box, plus offline activation via WF-... key or signed WF1... token for unlimited exports.
6. Audit Receipts	Disk Verification Gate	Verifies Decodable frames, Frame Match, Metadata retention (LIST/bext/cue/id3), and post-write True Peak; exports JSON & CSV logs.
7. Mixer Preview	Multi-Deck A/B Console	Up to 8 virtual decks (CH 01–08), instant Raw vs. Norm switching, Intro/Break/Drop jumps, and 10s rolling RMS/Peak breathing scope.

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Core Architecture & Guarantees

• Local & Air-Gapped Audio Processing: Unreleased promos, dubplates, and pre-release masters stay strictly on local storage with zero cloud uploads or telemetry.
• Strict Source Media Immutability: Source files are opened read-only and never mutated. Outputs write into a separate folder through atomic .tmp staging.
• Lossless Bitstream & Metadata Preservation: Supports 16/24/32-bit float WAV (including Broadcast WAV bext), AIFF, FLAC, ALAC, MP3, and M4A while retaining ID3v2, Pioneer GEOB, Traktor NML, Vorbis comments, RIFF metadata chunks, and embedded artwork.
• Selectable Dynamics Policy: Choose PreserveDynamics for pure linear gain (zero compression, explicit headroom shortfall reporting) or MatchTarget when uniform club targets require transparent lookahead limiting.
• Cross-Platform Desktop Builds (v1.4.0): Native installers for Windows 10/11 (x64), macOS 12+ Universal (Apple Silicon M1–M4 & Intel x86_64), and Linux x64 (AppImage & .deb).

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Licensing & Free Tools

Tier / Offering	Price	Availability	Key Capabilities Included
Free Online DJ Tools	€0.00 (No Account)	Web Browser (Local JS)	DJ Headroom & Intersample Peak Calculator · Rekordbox, Traktor & Serato XML Crate Health Checker
Waveforge Free Starter (v1.4.0)	€0.00 (No Account)	Windows · macOS Universal · Linux	Unlimited local library scanning, BS.1770-4 metering, Dual-Lane Waveform HUD & 8-deck Mixer Preview · 10 verified track exports offline (cancelled/failed runs never consume credits)
Waveforge Lifetime Desktop	€34.99 (One-Time)	Windows · macOS Universal · Linux	Unlimited offline batch exports, 4× True-Peak limiting & Lossless MP3 FrameGain · JSON/CSV disk verification receipts · 2 concurrent workstation activations with self-service deactivation & key recovery · Free v1.x updates & 30-day money-back guarantee

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Workstation Tour (v1.4.0 Native App Captures)

Empty Dropzone & Multi-Format Ingestion

Drag tracks or recursive library folders locally with target loudness, true-peak ceiling, mode controls, and Free Starter export counter

Batch Loudness & Transparent Gain Planning Matrix

Inspect Duration, Source Integrated LUFS, Representative DJ LUFS, Sample Peak, 4× True Peak (dBTP), and planned gain / shortfall chips before export

Track Inspector & BS.1770-4 AudioMeter

Per-track loudness breakdown vs. club target, codec telemetry, and embedded artwork inspection

Dual-Lane Waveform Comparison HUD

Decoded Original (cyan) vs. Processed Output (orange) on a shared amplitude scale with 2x/4x/8x zoom and -1.0 dBTP ceiling guides

Free Starter Allowance & Air-Gapped Ed25519 Activation

Shows remaining offline Free Starter exports (10/10) alongside one-time activation via 16-character key or offline token

Independent Disk Verification & Audit Reports

Physical post-write remeasurement verifying decodable frames, preserved metadata, LosslessMp3FrameGain, and true-peak ceilings

Multi-Deck Mixer Preview (v1.4.0)

Audition up to 8 tracks side by side with Raw vs. Norm switching, Intro/Break/Drop section jumps, and 10s rolling Peak/RMS scope

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Getting Started (Free 10-Track Trial -> Optional Lifetime Unlock)

1. Download the native Waveforge v1.4.0 Free Starter installer for Windows, macOS Universal, or Linux from waveforge-app.com/#download — no account or checkout required to install and inspect libraries.
2. Drag local audio files or a recursive DJ folder (WAV, AIFF, FLAC, MP3, M4A) into the Library dropzone to inspect Integrated/Representative LUFS, 4× True Peak, and exact gain plans unlimited times.
3. Choose a loudness target (e.g. -11.0 LUFS Club Standard), set the -1.0 dBTP true-peak ceiling, select Preserve Dynamics or Match Target, and export up to 10 verified tracks free into a separate output directory.
4. Inspect post-write measurements in Audit and audition Raw vs. Normalized audio in Mixer Preview. When you need unlimited batch exports across 2 workstations, unlock offline from the header licence badge (€34.99 Lifetime).

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Who Uses Waveforge

• Club & Festival DJs: Balance older vinyl rips, streaming promos, and modern masters to uniform loudness before soundcheck or Rekordbox/Serato/Engine USB export.
• Electronic Producers & Mastering Studios: Identify +0.5 to +3.0 dBTP intersample DAC reconstruction overshoots before sending promos or test masters out.
• Radio Residents & Archive Curators: Batch-normalize mixed-format crates with non-destructive source handling and verifiable JSON/CSV receipts.

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Technical Research & Official Links

• Official Website & Free Starter Downloads: https://waveforge-app.com
• Visual Step-by-Step Guide: https://waveforge-app.com/#guide
• Free DJ Headroom Calculator: https://waveforge-app.com/tools/dj-headroom-calculator.html
• Free Rekordbox XML Crate Checker: https://waveforge-app.com/tools/rekordbox-crate-checker.html
• Engineering Articles:
  • Why Digital Masters Clip on Pioneer CDJ Mixers (Intersample Peaks)
  • ITU-R BS.1770-4 Loudness Normalization for DJs
  • Lossless MP3 FrameGain vs. Lossy Re-Encoding
• Comparisons:
  • Waveforge vs. Platinum Notes
  • Waveforge vs. MP3Gain
• Pricing & Compliance: Pricing Spec · Open-Source Notices & SBOM

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_{© 2026 Waveforge · Documentation assets in this repository are MIT-licensed; the Waveforge desktop application offers a free 10-track starter allowance and commercial Lifetime licence (open-source notices). Pioneer DJ, Rekordbox, Serato, Traktor, and Engine DJ are trademarks of their respective owners.}