# AUDIOVERSE — Full Technical & Agentic Reference (llms-full.txt)

## Entity Summary
- **Product Name:** AUDIOVERSE
- **Website:** https://audioverse.kamalswami.in/
- **Category:** Browser-Native Audiophile Digital Signal Processing (DSP) Studio & Lossless Audio Player
- **Developer / Author:** Kamal Swami
- **Developer Website:** https://kamalswami.in
- **License:** MIT License
- **Architecture:** 100% Client-Side (Zero Server Load) using Web Audio API, OfflineAudioContext, IndexedDB, File System Access API, and Service Worker Offline PWA.

## Signal Processing Chain (Order of Operations)
1. Input Stage: Dual-Deck Gapless MediaElementAudioSource OR Live PC/Line-In/System Audio MediaStreamAudioSource
2. Preamp Gain (±12 dB)
3. Subsonic High-Pass Filter (18 Hz)
4. Tube Saturation (4x Oversampled WaveShaperNode)
5. Bass Low-Shelf (80 Hz)
6. 10-Band Graphic Equalizer (31 Hz, 62 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz, 8 kHz, 16 kHz)
7. 5-Band Parametric Equalizer (Peaking / Low-Shelf / High-Shelf + AutoEq ParametricEQ.txt import)
8. Treble High-Shelf (8 kHz)
9. Stereo Width (15 ms Haas Delay)
10. Convolution Reverb (Synthetic Room/Hall/Plate + Custom `.wav` FIR Impulse Responses)
11. Parallel Dynamics Compressor
12. Brick-Wall Peak Limiter (-1.0 dBFS, 20:1 ratio)
13. Stereo Balance (`StereoPannerNode`) & 3D HRTF Spatial Panner
14. Headphone Crossfeed (700 Hz Low-Pass, 300 µs ITD)
15. Master Volume (ReplayGain / ITU-R BS.1770-4 LUFS Normalized) & Output DAC Routing (`setSinkId()`)

## Frequently Asked Questions (AEO / Answer Engine Reference)
- **Does Audioverse upload my music or microphone audio to a server?**
  No. All decoding, DSP, local folder indexing, and live input monitoring happen strictly inside the user's browser.
- **Can Audioverse play DSD (.dsf / .dff) files?**
  Yes. Audioverse includes a pure-JavaScript 1-bit PDM-to-PCM FIR low-pass decoder that converts DSD64 and DSD128 `.dsf`/`.dff` files into 88.2 kHz / 24-bit stereo WAV locally.
- **Can Audioverse process PC audio outside the browser?**
  Yes. Users can select external USB audio interfaces, Line-In, or virtual loopback drivers (such as BlackHole on macOS or VB-Cable / Stereo Mix on Windows) via `PC LINE-IN / MIC`, or capture OS/screen audio via `PC SYSTEM AUDIO`.
- **Who built Audioverse?**
  Audioverse was engineered and designed by Kamal Swami (https://kamalswami.in).