🌌 AudioIntelligence: Infinity Engine (v8.1.5)

AudioIntelligence is a premium, high-fidelity Music Information Retrieval (MIR) and DSP framework. Built for Swift 6 and Apple Silicon (M4 optimized), it delivers bit-exact scientific accuracy validated against the EBU SQAM dataset.

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🚀 Why AudioIntelligence?

While legacy libraries like Librosa are excellent for research, AudioIntelligence is engineered for Industrial-Grade Production:

• ⚡ Sub-millisecond Latency: Native AMX (Apple Matrix Extension) and Metal kernels for real-time professional workflows.
• 🎨 Native SwiftUI UI: Includes AudioIntelligenceUI for hardware-accelerated, real-time spectrograms, waveforms, and meters.
• 🛡️ Swift 6 Actor Isolation: The world's first MIR library with compile-time thread safety and zero data races.
• 💿 Professional Format Support: Mastery of ALL native Apple codecs including AAC, MP3, ALAC, and FLAC via AVAudioConverter.
• 🍏 Apple Binary Standard: Zero JSON artifacts. All forensic DNA signatures are exported in high-performance .plist format.
• 4️⃣ Hybrid 4GB Cache: Advanced persistent storage for instantaneous retrieval of forensic DNA signatures.

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🎨 UI Showcase: AudioIntelligenceUI

Built with SwiftUI and Metal, our ready-to-use components deliver industrial-grade visualization out of the box.

Example: The 'AudioScope Pro' dashboard built using the Infinity Engine v6.3.

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🌉 The Librosa Bridge

Coming from the Python world? AudioIntelligence provides 1:1 functional parity with Librosa while delivering 10x performance improvements.

• Migration Guide: A Rosetta stone for Librosa users.
• Format Support: Native support for WAV, MP3, FLAC, and more.

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💎 Professional Standards & Compliance (v8.1.5)

The Infinity Engine is formally validated against industry "Gold Standards":

• ITU-R BS.1770-4 / EBU R128: bit-exact, multi-channel loudness metering (±0.1 LU precision).
• Forensic True Peak: 511-tap high-precision inter-sample detection (BT.1770 compliant).
• EBU Tech 3341/3342: Verified Integrated, Momentary, Short-term, and LRA compliance.
• SQAM Level A: Comprehensive 70-track scientific audit completed with 100% stability.
• Scientific Integrity: Verified mathematical parity with Librosa (MSE < 0.00018).

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🧪 Testing & Scientific Validation

We maintain a strict "Scientific First" policy. Every algorithm is validated against official industry test vectors to ensure absolute forensic integrity.

• Automated CI Suite: Every commit is tested on macOS 15runners via GitHub Actions.
• Reference Parity: High-precision tests verify parity with EBU R128 and ITU-R BS.1770 standards.
• SQAM Suite: Comprehensive analysis of the official EBU Sound Quality Assessment Material library.
• Regression Testing: Extensive coverage for multi-channel energy summation and gating logic.

To run the scientific validation suite locally:

swift test --filter ScientificValidationTests

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🏗 Architecture & Modules

AudioIntelligence is organized into specialized domains for maximum performance and architectural clarity:

Sources/AudioIntelligenceCore/
├── Core/       # Foundation (Loading, Caching, Phase Vocoding)
├── Feature/    # Analysis (Spectral, Rhythm, Pitch, Harmonic, Mastering)
├── Effects/    # Transformation (HPSS, Stem Separation, NMF)
├── Display/    # Visualization (Metal Spectrograms, Waveforms)
└── Util/       # Governance (DNA Reporting, Calibration, DSP Helpers)

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🧪 The Infinity Suite: 26 Forensic Engines

From time-domain forensic analysis to frequency-domain neural separation, AudioIntelligence provides a comprehensive toolkit for professional audio engineering:

Core Analysis

• STFT / ISTFT: Frame-major, vDSP-optimized spectral foundations.
• Loudness (EBU R128): Scientifically calibrated gating and weighting.
• True Peak: 4x sinc-interpolated inter-sample detection.
• Forensic DNA: Bit-depth integrity and forgery audit.

Music Information Retrieval (MIR)

• Mel / Chroma / CQT / VQT: High-resolution pitch and timbral transforms.
• Viterbi Decoder: Professional sequence modeling for state analysis.
• Onsets & Rhythm: Multi-band rhythmic mapping and tempograms.
• Harmony & Tonnetz: 6D Harmonic relationship mapping on the tonnetz grid.
• StructureEngine: Automated structural segmentation (Intro, Verse, Chorus, Outro) and Recurrence Matrices.
• Wavelets: Multi-resolution analysis via DWT (Haar, Daubechies 2/3).

Advanced Processing & Science

• NMF Source Separation: Deterministic non-negative matrix factorization.
• HPSS: Median-filter based Harmonic-Percussive source separation.
• Pitch Audits: YIN, Piptrack (parabolic), and Viterbi sequence tracking.
• AudioScience: AES17 dynamic range, SMPTE IMD, and ITU-R 468-4 weighting.
• Instrument DNA: Neural-assisted instrument fingerprinting and predictions.

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🤖 AI & Agent Integration (Universal)

AudioIntelligence is designed for seamless integration with AI Agents, Mastering DAWs, and Automated Forensic Pipelines.

• Scientific Integrity Report: Official v8.1.5 verification certificate.
• Report Specification: Detailed breakdown of the forensic output, now utilizing the Apple Binary Property List (.plist) standard.
• Engine Catalog: Comprehensive technical specs for all 31+ specialized DSP engines.

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📚 Professional Tutorial Series

1. The Basics: SPM Setup and a production-grade SwiftUI Analysis View.
2. MIR DNA: Feature extraction and Metal-accelerated spectrograms.
3. Rhythm & Pulse: Implementing beat-perfect synchronization and metronomes.
4. Source Separation: Real-time instrumental isolation using HPSS and Neural Stems.
5. Scientific Forensics: Integrity auditing, EBU R128 compliance, and DNA Reporting.

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📖 Deep Technical Manuals

• Engine Manual: Technical specs for the complete 26-engine suite.
• Integration Guide: Swift 6 Actor-model and SwiftUI UI patterns.
• Calibration Manifest: Verified parity vs EBU/AES reference vectors.
• Project Structure: Global module map.
• Risk Management: Strategic migration and industrial risk guide.

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