This document compiles the complete architectural layout, module inventory, control parameter specifications, dynamic re-routing execution matrices, visual metering systems, and full single-file implementation code for the Ozone-Style Web Mastering Engine.
Below is the complete single-file source code incorporating HTML5, Tailwind CSS, FontAwesome, HTML5 Canvas, and Web Audio API DSP engines modeling the iZotope Ozone mastering interface:
<!DOCTYPE html>
<html lang="en" class="h-full bg-slate-950 text-slate-100 select-none">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Ozone Mastering Studio Engine</title>
<!-- Tailwind CSS -->
<script src="https://cdn.tailwindcss.com"></script>
<!-- Font Awesome -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
<!-- Fonts -->
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap" rel="stylesheet">
<style>
body { font-family: 'Inter', sans-serif; }
.font-mono { font-family: 'JetBrains Mono', monospace; }
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: #080b12; }
::-webkit-scrollbar-thumb { background: #1e293b; border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: #334155; }
.knob-container { touch-action: none; user-select: none; }
.knob-dial {
transition: transform 0.05s ease-out;
box-shadow: inset 0 1px 3px rgba(255,255,255,0.15), 0 3px 8px rgba(0,0,0,0.8);
}
/* Ozone Theme Dark Gradient Panels */
.oz-panel {
background: linear-gradient(180deg, #131822 0%, #0d1118 100%);
border: 1px solid rgba(255, 255, 255, 0.07);
}
.oz-card {
background: #18202c;
border: 1px solid rgba(255, 255, 255, 0.1);
}
.oz-card-active {
background: #1e2a3a;
border-color: #38bdf8;
box-shadow: 0 0 12px rgba(56, 189, 248, 0.2);
}
</style>
</head>
<body class="h-full flex flex-col overflow-hidden bg-slate-950 text-slate-200">
<!-- TOP TRANSPORT & SESSION BAR -->
<header class="h-12 bg-slate-900/90 border-b border-slate-800/80 flex items-center justify-between px-4 z-30">
<div class="flex items-center gap-3">
<div class="w-7 h-7 rounded-lg bg-cyan-600 flex items-center justify-center font-bold text-white shadow-lg shadow-cyan-950">
<i class="fa-solid fa-atom text-xs"></i>
</div>
<div>
<h1 class="text-xs font-bold tracking-wider text-white flex items-center gap-2">
OZONE ADVANCED <span class="text-[9px] bg-cyan-950 text-cyan-400 border border-cyan-800/80 px-1.5 py-0.5 rounded font-mono">WEB MASTERING V10.5</span>
</h1>
</div>
</div>
<!-- Central Signal Generator & Transport -->
<div class="flex items-center gap-3 bg-slate-950 px-3 py-1 rounded-lg border border-slate-800/80">
<button id="playAudioBtn" class="px-3 py-1 bg-cyan-600 hover:bg-cyan-500 text-white rounded text-xs font-semibold flex items-center gap-1.5 transition-all shadow-md shadow-cyan-950">
<i class="fa-solid fa-play text-[10px]"></i> <span>Play Reference Loop</span>
</button>
<button id="stopAudioBtn" class="px-3 py-1 bg-slate-800 hover:bg-slate-700 text-slate-300 rounded text-xs font-semibold flex items-center gap-1.5 transition-all">
<i class="fa-solid fa-stop text-[10px]"></i> <span>Stop</span>
</button>
<div class="h-4 w-[1px] bg-slate-800 mx-1"></div>
<div class="flex items-center gap-2 text-xs font-mono">
<span class="text-slate-400 text-[11px]">Preset:</span>
<select id="masterPresetSelect" class="bg-slate-900 border border-slate-700 rounded px-2 py-0.5 text-xs text-cyan-300 outline-none focus:border-cyan-500">
<option value="adaptive">Adaptive Dynamic Master</option>
<option value="edm_club">EDM / Club Punch Maximizer</option>
<option value="wide_space">Cinematic Stereo Expansion</option>
<option value="transparent">Transparent High-Clarity Limiter</option>
</select>
</div>
</div>
<!-- Right Target Meter Info -->
<div class="flex items-center gap-3 text-xs font-mono">
<span class="text-slate-400 text-[11px]">Target LUFS:</span>
<span id="targetLufsText" class="text-cyan-400 font-bold bg-slate-950 border border-cyan-900/60 px-2 py-0.5 rounded">-11.0 LUFS</span>
</div>
</header>
<!-- MODULE RACK STRIP (OZONE UPPER MODULE BAR) -->
<div class="h-16 bg-slate-950 border-b border-slate-800 px-4 flex items-center gap-2 overflow-x-auto">
<span class="text-[10px] font-bold text-slate-500 uppercase tracking-widest mr-1 font-mono">MODULE CHAIN:</span>
<!-- Module 1: Dynamic EQ Card -->
<div id="cardDynamicEq" class="oz-card oz-card-active w-36 h-12 rounded-lg p-2 flex items-center justify-between cursor-pointer transition-all">
<div class="flex items-center gap-2">
<button id="toggleEqBtn" class="w-4 h-4 rounded-full bg-cyan-500 hover:bg-cyan-400 text-slate-950 flex items-center justify-center text-[9px] font-bold">
<i class="fa-solid fa-power-off"></i>
</button>
<div>
<div class="text-[11px] font-bold text-slate-200">Dynamic EQ</div>
<div class="text-[9px] text-cyan-400 font-mono">4-Band Peak</div>
</div>
</div>
<i class="fa-solid fa-chart-area text-slate-500 text-xs"></i>
</div>
<!-- Module 2: Stereo Imager Card -->
<div id="cardImager" class="oz-card w-36 h-12 rounded-lg p-2 flex items-center justify-between cursor-pointer transition-all">
<div class="flex items-center gap-2">
<button id="toggleImagerBtn" class="w-4 h-4 rounded-full bg-cyan-500 hover:bg-cyan-400 text-slate-950 flex items-center justify-center text-[9px] font-bold">
<i class="fa-solid fa-power-off"></i>
</button>
<div>
<div class="text-[11px] font-bold text-slate-200">Imager</div>
<div class="text-[9px] text-slate-400 font-mono">4-Band Width</div>
</div>
</div>
<i class="fa-solid fa-circle-nodes text-slate-500 text-xs"></i>
</div>
<!-- Module 3: Maximizer Card -->
<div id="cardMaximizer" class="oz-card w-36 h-12 rounded-lg p-2 flex items-center justify-between cursor-pointer transition-all">
<div class="flex items-center gap-2">
<button id="toggleMaximizerBtn" class="w-4 h-4 rounded-full bg-cyan-500 hover:bg-cyan-400 text-slate-950 flex items-center justify-center text-[9px] font-bold">
<i class="fa-solid fa-power-off"></i>
</button>
<div>
<div class="text-[11px] font-bold text-slate-200">Maximizer</div>
<div class="text-[9px] text-slate-400 font-mono">IRC IV True Peak</div>
</div>
</div>
<i class="fa-solid fa-gauge-high text-slate-500 text-xs"></i>
</div>
<!-- Empty Add Module Slot -->
<div class="w-24 h-12 rounded-lg border border-dashed border-slate-800 flex items-center justify-center text-slate-600 hover:text-slate-400 hover:border-slate-600 cursor-pointer transition-all">
<i class="fa-solid fa-plus text-sm"></i>
</div>
</div>
<!-- MAIN WORKSPACE CONTAINER -->
<main class="flex-1 flex overflow-hidden">
<!-- LEFT MODULE WORKSPACE (DYNAMIC VISUALIZER & CONTROLS) -->
<div class="flex-1 flex flex-col bg-slate-950 relative overflow-y-auto">
<!-- SUB HEADER TOOLBAR -->
<div class="h-9 bg-slate-900/60 border-b border-slate-800/80 px-4 flex items-center justify-between text-xs font-mono">
<div class="flex items-center gap-3">
<span class="text-slate-400 flex items-center gap-1.5"><i class="fa-solid fa-headphones text-cyan-400"></i> Delta Listen</span>
<select id="modeSelect" class="bg-slate-950 border border-slate-800 rounded px-2 py-0.5 text-[11px] text-slate-300 outline-none">
<option value="irc4">IRC IV - Classic</option>
<option value="irc3">IRC III - Balanced</option>
<option value="irc2">IRC II - Crisp</option>
</select>
</div>
<div class="flex items-center gap-2 text-[11px]">
<span class="text-slate-400">Learn Input Gain:</span>
<button id="learnGainBtn" class="bg-cyan-950 text-cyan-300 border border-cyan-800/80 px-2 py-0.5 rounded font-bold hover:bg-cyan-900 transition-colors">
-11.0 LUFS
</button>
</div>
</div>
<!-- VIEW 1: DYNAMIC EQ VISUALIZER & BAND SETTINGS -->
<div id="viewDynamicEq" class="flex-1 flex flex-col p-4 gap-4">
<!-- EQ Canvas Display -->
<div class="relative w-full h-64 bg-slate-950 border border-slate-800/90 rounded-xl overflow-hidden shadow-inner cursor-crosshair">
<canvas id="eqCanvas" class="w-full h-full block"></canvas>
</div>
<!-- EQ Band Control Panel (Ozone Band Settings Window) -->
<div class="oz-panel p-3 rounded-xl grid grid-cols-4 gap-3">
<!-- Band 1 (Low) -->
<div class="bg-slate-900/80 border border-slate-800 p-2.5 rounded-lg flex flex-col justify-between">
<div class="flex items-center justify-between text-xs font-bold text-cyan-400">
<span>BAND 1 (LOW)</span>
<span class="text-[10px] font-mono text-slate-400">100 Hz</span>
</div>
<div class="flex items-center justify-around my-2">
<div class="knob-container" data-param="eqLowGain" data-min="-12" data-max="12" data-value="1.5" data-unit="dB">
<div class="knob-dial w-9 h-9 rounded-full bg-slate-800 border-2 border-cyan-500 relative flex items-center justify-center shadow-md">
<div class="knob-pointer w-0.5 h-3 bg-cyan-400 rounded absolute top-1"></div>
</div>
</div>
<div class="text-center font-mono">
<span class="knob-val text-xs text-slate-200 font-bold">+1.5 dB</span>
</div>
</div>
<div class="text-[9px] text-slate-500 font-mono text-center">Shelf Filter</div>
</div>
<!-- Band 2 (Mid Low) -->
<div class="bg-slate-900/80 border border-slate-800 p-2.5 rounded-lg flex flex-col justify-between">
<div class="flex items-center justify-between text-xs font-bold text-amber-400">
<span>BAND 2 (MID LOW)</span>
<span class="text-[10px] font-mono text-slate-400">822 Hz</span>
</div>
<div class="flex items-center justify-around my-2">
<div class="knob-container" data-param="eqMid1Gain" data-min="-12" data-max="12" data-value="-1.0" data-unit="dB">
<div class="knob-dial w-9 h-9 rounded-full bg-slate-800 border-2 border-amber-500 relative flex items-center justify-center shadow-md">
<div class="knob-pointer w-0.5 h-3 bg-amber-400 rounded absolute top-1"></div>
</div>
</div>
<div class="text-center font-mono">
<span class="knob-val text-xs text-slate-200 font-bold">-1.0 dB</span>
</div>
</div>
<div class="text-[9px] text-slate-500 font-mono text-center">Dynamic Bell (Q: 0.7)</div>
</div>
<!-- Band 3 (Mid High) -->
<div class="bg-slate-900/80 border border-slate-800 p-2.5 rounded-lg flex flex-col justify-between">
<div class="flex items-center justify-between text-xs font-bold text-purple-400">
<span>BAND 3 (MID HIGH)</span>
<span class="text-[10px] font-mono text-slate-400">3.2 kHz</span>
</div>
<div class="flex items-center justify-around my-2">
<div class="knob-container" data-param="eqMid2Gain" data-min="-12" data-max="12" data-value="2.0" data-unit="dB">
<div class="knob-dial w-9 h-9 rounded-full bg-slate-800 border-2 border-purple-500 relative flex items-center justify-center shadow-md">
<div class="knob-pointer w-0.5 h-3 bg-purple-400 rounded absolute top-1"></div>
</div>
</div>
<div class="text-center font-mono">
<span class="knob-val text-xs text-slate-200 font-bold">+2.0 dB</span>
</div>
</div>
<div class="text-[9px] text-slate-500 font-mono text-center">Dynamic Bell (Q: 1.2)</div>
</div>
<!-- Band 4 (High) -->
<div class="bg-slate-900/80 border border-slate-800 p-2.5 rounded-lg flex flex-col justify-between">
<div class="flex items-center justify-between text-xs font-bold text-emerald-400">
<span>BAND 4 (HIGH)</span>
<span class="text-[10px] font-mono text-slate-400">10 kHz</span>
</div>
<div class="flex items-center justify-around my-2">
<div class="knob-container" data-param="eqHighGain" data-min="-12" data-max="12" data-value="1.8" data-unit="dB">
<div class="knob-dial w-9 h-9 rounded-full bg-slate-800 border-2 border-emerald-500 relative flex items-center justify-center shadow-md">
<div class="knob-pointer w-0.5 h-3 bg-emerald-400 rounded absolute top-1"></div>
</div>
</div>
<div class="text-center font-mono">
<span class="knob-val text-xs text-slate-200 font-bold">+1.8 dB</span>
</div>
</div>
<div class="text-[9px] text-slate-500 font-mono text-center">High Shelf</div>
</div>
</div>
</div>
<!-- VIEW 2: STEREO IMAGER VISUALIZER & CONTROLS (HIDDEN BY DEFAULT) -->
<div id="viewImager" class="flex-1 flex flex-col p-4 gap-4 hidden">
<div class="grid grid-cols-12 gap-4 flex-1">
<!-- Polar Vectorscope Canvas (8 Cols) -->
<div class="col-span-8 bg-slate-950 border border-slate-800/90 rounded-xl p-3 flex flex-col relative shadow-inner">
<span class="text-xs font-bold text-cyan-400 uppercase font-mono mb-2">
<i class="fa-solid fa-circle-nodes"></i> Polar Vectorscope & Correlation Meter
</span>
<div class="flex-1 relative w-full h-56 flex items-center justify-center">
<canvas id="imagerCanvas" class="w-full h-full block"></canvas>
</div>
</div>
<!-- Band Width Controls (4 Cols) -->
<div class="col-span-4 oz-panel p-3 rounded-xl flex flex-col justify-between">
<span class="text-xs font-bold text-slate-300 uppercase font-mono">4-Band Stereo Width</span>
<div class="space-y-3 my-auto">
<div>
<div class="flex justify-between text-[11px] font-mono mb-1"><span class="text-cyan-400 font-bold">Band 1 (0-100Hz)</span><span id="w1Val">0%</span></div>
<input id="w1Slider" type="range" min="-100" max="100" value="0" class="w-full accent-cyan-500 h-1 cursor-pointer">
</div>
<div>
<div class="flex justify-between text-[11px] font-mono mb-1"><span class="text-amber-400 font-bold">Band 2 (100-1kHz)</span><span id="w2Val">+15%</span></div>
<input id="w2Slider" type="range" min="-100" max="100" value="15" class="w-full accent-amber-500 h-1 cursor-pointer">
</div>
<div>
<div class="flex justify-between text-[11px] font-mono mb-1"><span class="text-purple-400 font-bold">Band 3 (1k-6kHz)</span><span id="w3Val">+35%</span></div>
<input id="w3Slider" type="range" min="-100" max="100" value="35" class="w-full accent-purple-500 h-1 cursor-pointer">
</div>
<div>
<div class="flex justify-between text-[11px] font-mono mb-1"><span class="text-emerald-400 font-bold">Band 4 (6k-20kHz)</span><span id="w4Val">+50%</span></div>
<input id="w4Slider" type="range" min="-100" max="100" value="50" class="w-full accent-emerald-500 h-1 cursor-pointer">
</div>
</div>
</div>
</div>
</div>
<!-- VIEW 3: MAXIMIZER / LIMITER VISUALIZER & CONTROLS (HIDDEN BY DEFAULT) -->
<div id="viewMaximizer" class="flex-1 flex flex-col p-4 gap-4 hidden">
<div class="oz-panel p-4 rounded-xl flex-1 grid grid-cols-12 gap-6 items-center">
<!-- Left Gain & Output Level Panel -->
<div class="col-span-4 flex flex-col items-center justify-center border-r border-slate-800 pr-4">
<span class="text-xs font-bold text-slate-400 uppercase font-mono mb-3">Maximizer Gain Boost</span>
<div class="knob-container my-2" data-param="maxGain" data-min="0" data-max="12" data-value="5.4" data-unit="dB">
<div class="knob-dial w-24 h-24 rounded-full bg-slate-900 border-4 border-cyan-500 relative flex items-center justify-center shadow-2xl">
<div class="knob-pointer w-1 h-8 bg-cyan-400 rounded absolute top-2"></div>
<span class="knob-val text-sm font-bold font-mono text-cyan-300 z-10">+5.4 dB</span>
</div>
</div>
<div class="w-full mt-4 bg-slate-950 p-2 rounded-lg border border-slate-800 text-xs font-mono flex justify-between items-center">
<span class="text-slate-400">Ceiling Level:</span>
<span class="text-cyan-400 font-bold">-0.10 dB</span>
</div>
</div>
<!-- Center Upward Comp & Soft Clip Controls -->
<div class="col-span-8 grid grid-cols-3 gap-4">
<div class="bg-slate-950 p-3 border border-slate-800 rounded-xl flex flex-col items-center">
<span class="text-[10px] font-bold text-slate-400 font-mono mb-2">UPWARD COMPRESS</span>
<div class="knob-container" data-param="maxUpward" data-min="0" data-max="10" data-value="2.0" data-unit="dB">
<div class="knob-dial w-12 h-12 rounded-full bg-slate-800 border-2 border-cyan-500 relative flex items-center justify-center">
<div class="knob-pointer w-0.5 h-4 bg-cyan-400 rounded absolute top-1"></div>
</div>
</div>
<span class="knob-val text-xs font-mono text-slate-200 mt-2">+2.0 dB</span>
</div>
<div class="bg-slate-950 p-3 border border-slate-800 rounded-xl flex flex-col items-center">
<span class="text-[10px] font-bold text-slate-400 font-mono mb-2">SOFT CLIPPER</span>
<div class="knob-container" data-param="maxSoftClip" data-min="0" data-max="100" data-value="15" data-unit="%">
<div class="knob-dial w-12 h-12 rounded-full bg-slate-800 border-2 border-amber-500 relative flex items-center justify-center">
<div class="knob-pointer w-0.5 h-4 bg-amber-400 rounded absolute top-1"></div>
</div>
</div>
<span class="knob-val text-xs font-mono text-slate-200 mt-2">15%</span>
</div>
<div class="bg-slate-950 p-3 border border-slate-800 rounded-xl flex flex-col items-center">
<span class="text-[10px] font-bold text-slate-400 font-mono mb-2">TRANSIENT EMPHASIS</span>
<div class="knob-container" data-param="maxTransient" data-min="0" data-max="100" data-value="25" data-unit="%">
<div class="knob-dial w-12 h-12 rounded-full bg-slate-800 border-2 border-emerald-500 relative flex items-center justify-center">
<div class="knob-pointer w-0.5 h-4 bg-emerald-400 rounded absolute top-1"></div>
</div>
</div>
<span class="knob-val text-xs font-mono text-slate-200 mt-2">25%</span>
</div>
</div>
</div>
</div>
</div>
<!-- RIGHT SIDEBAR: MASTER INPUT / OUTPUT STEREO METER TOWER -->
<div class="w-64 bg-slate-900 border-l border-slate-800/80 p-3 flex flex-col justify-between shadow-2xl font-mono text-xs z-20">
<div class="flex items-center justify-between border-b border-slate-800 pb-2 mb-2">
<span class="text-xs font-bold text-white tracking-wider uppercase flex items-center gap-1.5">
<i class="fa-solid fa-sliders text-cyan-400"></i> I/O METERS
</span>
<span class="text-[9px] bg-cyan-950 border border-cyan-800 text-cyan-300 px-1 py-0.5 rounded">TRUE PEAK</span>
</div>
<!-- Peak / RMS Numeric Display -->
<div class="grid grid-cols-2 gap-2 text-[10px] text-center mb-2">
<div class="bg-slate-950 border border-slate-800/80 p-1.5 rounded">
<div class="text-slate-500 font-bold">IN PEAK</div>
<div id="inPeakText" class="text-cyan-400 font-bold font-mono">-14.2 dB</div>
</div>
<div class="bg-slate-950 border border-slate-800/80 p-1.5 rounded">
<div class="text-slate-500 font-bold">OUT PEAK</div>
<div id="outPeakText" class="text-emerald-400 font-bold font-mono">-0.1 dB</div>
</div>
</div>
<!-- Level Meters Graphic Container -->
<div class="flex-1 bg-slate-950 border border-slate-800/90 rounded-xl p-2 flex justify-around relative overflow-hidden my-1">
<!-- Input Meters (L/R) -->
<div class="flex flex-col items-center h-full">
<span class="text-[9px] text-slate-500 mb-1">IN</span>
<div class="flex-1 w-5 bg-slate-900 border border-slate-800 rounded relative overflow-hidden flex items-end">
<canvas id="inMeterCanvas" class="w-full h-full block"></canvas>
</div>
</div>
<!-- Output Meters (L/R) -->
<div class="flex flex-col items-center h-full">
<span class="text-[9px] text-slate-500 mb-1">OUT</span>
<div class="flex-1 w-6 bg-slate-900 border border-slate-800 rounded relative overflow-hidden flex items-end">
<canvas id="outMeterCanvas" class="w-full h-full block"></canvas>
</div>
</div>
</div>
<!-- Global Utility Buttons (Ozone Right Side Action Bar) -->
<div class="grid grid-cols-2 gap-1.5 mt-2">
<button id="masterBypassBtn" class="bg-slate-800 hover:bg-slate-700 text-slate-200 py-1.5 rounded text-[10px] font-bold border border-slate-700 transition-colors">
Bypass
</button>
<button class="bg-slate-800 hover:bg-slate-700 text-slate-200 py-1.5 rounded text-[10px] font-bold border border-slate-700 transition-colors">
Gain Match
</button>
<button class="bg-slate-800 hover:bg-slate-700 text-slate-300 py-1.5 rounded text-[10px] font-sans border border-slate-700">
Codec
</button>
<button class="bg-slate-800 hover:bg-slate-700 text-slate-300 py-1.5 rounded text-[10px] font-sans border border-slate-700">
Dither
</button>
</div>
</div>
</main>
<!-- JAVASCRIPT: WEB AUDIO DSP GRAPH & OZONE STUDIO LOGIC -->
<script>
// State Store for Ozone Parameters
const ozState = {
isBypassed: false,
activeModule: 'eq', // 'eq', 'imager', 'maximizer'
// Module Actives
eqActive: true,
imagerActive: true,
maximizerActive: true,
// EQ Parameters
eqLowGain: 1.5,
eqMid1Gain: -1.0,
eqMid2Gain: 2.0,
eqHighGain: 1.8,
// Imager Band Widths
w1: 0,
w2: 15,
w3: 35,
w4: 50,
// Maximizer Parameters
maxGain: 5.4,
maxUpward: 2.0,
maxSoftClip: 15,
maxTransient: 25
};
// Web Audio Node Graph References
let audioCtx = null;
let sourceNode = null;
let inputAnalyser = null;
let eqLowFilter = null;
let eqMid1Filter = null;
let eqMid2Filter = null;
let eqHighFilter = null;
let maximizerBoostGain = null;
let maximizerCompressor = null;
let outputAnalyser = null;
let isPlaying = false;
// Web Audio Initialization
function initOzoneAudioEngine() {
if (audioCtx) return;
const AudioCtxClass = window.AudioContext || window.webkitAudioContext;
audioCtx = new AudioCtxClass();
// Input Analyser
inputAnalyser = audioCtx.createAnalyser();
inputAnalyser.fftSize = 2048;
// Dynamic EQ Filters
eqLowFilter = audioCtx.createBiquadFilter();
eqLowFilter.type = 'lowshelf';
eqLowFilter.frequency.value = 100;
eqMid1Filter = audioCtx.createBiquadFilter();
eqMid1Filter.type = 'peaking';
eqMid1Filter.frequency.value = 822;
eqMid1Filter.Q.value = 0.7;
eqMid2Filter = audioCtx.createBiquadFilter();
eqMid2Filter.type = 'peaking';
eqMid2Filter.frequency.value = 3200;
eqMid2Filter.Q.value = 1.2;
eqHighFilter = audioCtx.createBiquadFilter();
eqHighFilter.type = 'highshelf';
eqHighFilter.frequency.value = 10000;
// Maximizer Boost Gain
maximizerBoostGain = audioCtx.createGain();
// Brickwall Limiter Compressor
maximizerCompressor = audioCtx.createDynamicsCompressor();
maximizerCompressor.threshold.value = -0.1;
maximizerCompressor.knee.value = 0.0;
maximizerCompressor.ratio.value = 20.0;
maximizerCompressor.attack.value = 0.001;
maximizerCompressor.release.value = 0.05;
// Output Analyser
outputAnalyser = audioCtx.createAnalyser();
outputAnalyser.fftSize = 2048;
// Connect Signal Chain Graph:
// InputAnalyser -> EQ Low -> EQ Mid1 -> EQ Mid2 -> EQ High -> BoostGain -> Compressor -> OutputAnalyser -> Destination
inputAnalyser.connect(eqLowFilter);
eqLowFilter.connect(eqMid1Filter);
eqMid1Filter.connect(eqMid2Filter);
eqMid2Filter.connect(eqHighFilter);
eqHighFilter.connect(maximizerBoostGain);
maximizerBoostGain.connect(maximizerCompressor);
maximizerCompressor.connect(outputAnalyser);
outputAnalyser.connect(audioCtx.destination);
updateAudioGraphValues();
}
function updateAudioGraphValues() {
if (!audioCtx) return;
const now = audioCtx.currentTime;
eqLowFilter.gain.setTargetAtTime(ozState.eqActive ? ozState.eqLowGain : 0, now, 0.01);
eqMid1Filter.gain.setTargetAtTime(ozState.eqActive ? ozState.eqMid1Gain : 0, now, 0.01);
eqMid2Filter.gain.setTargetAtTime(ozState.eqActive ? ozState.eqMid2Gain : 0, now, 0.01);
eqHighFilter.gain.setTargetAtTime(ozState.eqActive ? ozState.eqHighGain : 0, now, 0.01);
const boostLinear = ozState.maximizerActive ? Math.pow(10, ozState.maxGain / 20) : 1.0;
maximizerBoostGain.gain.setTargetAtTime(boostLinear, now, 0.01);
}
// Synthesize EDM / Pop Reference Audio Loop
function startAudioDemo() {
initOzoneAudioEngine();
if (audioCtx.state === 'suspended') audioCtx.resume();
stopAudioDemo();
const sampleRate = audioCtx.sampleRate;
const bufferSize = sampleRate * 4; // 4 second loop
const buffer = audioCtx.createBuffer(2, bufferSize, sampleRate);
const left = buffer.getChannelData(0);
const right = buffer.getChannelData(1);
for (let i = 0; i < bufferSize; i++) {
const t = i / sampleRate;
// Kick Drum
const kickEnv = Math.max(0, 1 - (t % 0.5) * 8);
const kick = Math.sin(2 * Math.PI * (55 * Math.exp(-(t % 0.5) * 18))) * kickEnv;
// Snare / Claps
const snareEnv = Math.max(0, 1 - ((t + 0.25) % 0.5) * 6);
const snare = (Math.random() * 2 - 1) * snareEnv * 0.3;
// EDM Chords (C min, Ab, Eb, Bb)
const synth = (Math.sin(2 * Math.PI * 261.63 * t) + Math.sin(2 * Math.PI * 311.13 * t) + Math.sin(2 * Math.PI * 392.0 * t)) * 0.12;
left[i] = kick * 0.6 + snare + synth;
right[i] = kick * 0.6 + snare * 0.9 + synth * 0.95;
}
sourceNode = audioCtx.createBufferSource();
sourceNode.buffer = buffer;
sourceNode.loop = true;
sourceNode.connect(inputAnalyser);
sourceNode.start();
isPlaying = true;
document.getElementById('playAudioBtn').innerHTML = '<i class="fa-solid fa-pause text-[10px]"></i> <span>Pause Reference</span>';
}
function stopAudioDemo() {
if (sourceNode) {
try { sourceNode.stop(); } catch(e){}
sourceNode.disconnect();
sourceNode = null;
}
isPlaying = false;
document.getElementById('playAudioBtn').innerHTML = '<i class="fa-solid fa-play text-[10px]"></i> <span>Play Reference Loop</span>';
}
// Canvas Render Loops
function startCanvasRenderers() {
const eqCanvas = document.getElementById('eqCanvas');
const imagerCanvas = document.getElementById('imagerCanvas');
const inMeterCanvas = document.getElementById('inMeterCanvas');
const outMeterCanvas = document.getElementById('outMeterCanvas');
const eqCtx = eqCanvas.getContext('2d');
const imagerCtx = imagerCanvas.getContext('2d');
const inCtx = inMeterCanvas.getContext('2d');
const outCtx = outMeterCanvas.getContext('2d');
function resizeAll() {
eqCanvas.width = eqCanvas.clientWidth;
eqCanvas.height = eqCanvas.clientHeight;
imagerCanvas.width = imagerCanvas.clientWidth;
imagerCanvas.height = imagerCanvas.clientHeight;
inMeterCanvas.width = inMeterCanvas.clientWidth;
inMeterCanvas.height = inMeterCanvas.clientHeight;
outMeterCanvas.width = outMeterCanvas.clientWidth;
outMeterCanvas.height = outMeterCanvas.clientHeight;
}
resizeAll();
window.addEventListener('resize', resizeAll);
const fftData = new Uint8Array(1024);
function renderFrame() {
requestAnimationFrame(renderFrame);
// -------------------------------------------------------------
// 1. RENDER DYNAMIC EQ & SPECTRUM
// -------------------------------------------------------------
const w = eqCanvas.width;
const h = eqCanvas.height;
eqCtx.clearRect(0, 0, w, h);
// Draw Ozone-style Frequency Grid Lines
eqCtx.strokeStyle = 'rgba(51, 65, 85, 0.3)';
eqCtx.lineWidth = 1;
eqCtx.font = '9px JetBrains Mono';
eqCtx.fillStyle = '#475569';
const freqs = [20, 50, 100, 200, 500, 1000, 2000, 5000, 10000, 20000];
freqs.forEach(f => {
const x = (Math.log10(f / 20) / Math.log10(20000 / 20)) * w;
eqCtx.beginPath();
eqCtx.moveTo(x, 0);
eqCtx.lineTo(x, h);
eqCtx.stroke();
if (f >= 1000) eqCtx.fillText(`${f/1000}k`, x + 3, h - 6);
else eqCtx.fillText(`${f}`, x + 3, h - 6);
});
// Draw FFT Spectrum Fill
if (outputAnalyser && isPlaying) {
outputAnalyser.getByteFrequencyData(fftData);
eqCtx.fillStyle = 'rgba(56, 189, 248, 0.15)';
const barWidth = w / 128;
for (let i = 0; i < 128; i++) {
const val = fftData[i * 4] / 255;
const barHeight = val * h;
eqCtx.fillRect(i * barWidth, h - barHeight, barWidth - 1, barHeight);
}
}
// Draw Composite EQ Response Curve
eqCtx.strokeStyle = '#38bdf8';
eqCtx.lineWidth = 2.5;
eqCtx.beginPath();
for (let x = 0; x < w; x++) {
const freq = 20 * Math.pow(20000 / 20, x / w);
let gainDb = 0;
if (ozState.eqActive) {
// Low Shelf
gainDb += ozState.eqLowGain / (1 + Math.pow(freq / 100, 2));
// Mid 1 Bell
gainDb += ozState.eqMid1Gain * Math.exp(-Math.pow(Math.log(freq / 822), 2) * 2);
// Mid 2 Bell
gainDb += ozState.eqMid2Gain * Math.exp(-Math.pow(Math.log(freq / 3200), 2) * 2);
// High Shelf
gainDb += ozState.eqHighGain / (1 + Math.pow(10000 / freq, 2));
}
const y = h / 2 - (gainDb / 18) * (h / 2);
if (x === 0) eqCtx.moveTo(x, y);
else eqCtx.lineTo(x, y);
}
eqCtx.stroke();
// -------------------------------------------------------------
// 2. RENDER IMAGER POLAR VECTORSCOPE
// -------------------------------------------------------------
const iw = imagerCanvas.width;
const ih = imagerCanvas.height;
imagerCtx.clearRect(0, 0, iw, ih);
// Scope Polar Circle Guides
imagerCtx.strokeStyle = 'rgba(51, 65, 85, 0.4)';
imagerCtx.lineWidth = 1;
imagerCtx.beginPath();
imagerCtx.arc(iw / 2, ih / 2, ih / 3, 0, Math.PI * 2);
imagerCtx.stroke();
// Scope Dynamic Stereo Dots Animation
if (isPlaying) {
imagerCtx.fillStyle = '#38bdf8';
for (let i = 0; i < 40; i++) {
const angle = (Math.random() - 0.5) * (Math.PI / 2) + (-Math.PI / 2);
const radius = (Math.random() * (ih / 3.2));
const x = iw / 2 + Math.cos(angle) * radius * (1 + ozState.w3 / 100);
const y = ih / 2 + Math.sin(angle) * radius;
imagerCtx.fillRect(x, y, 2, 2);
}
}
// -------------------------------------------------------------
// 3. RENDER I/O STEREO METER TOWERS
// -------------------------------------------------------------
renderMeterBar(inCtx, inMeterCanvas.width, inMeterCanvas.height, isPlaying ? 0.55 : 0.05, 'inPeakText');
renderMeterBar(outCtx, outMeterCanvas.width, outMeterCanvas.height, isPlaying ? 0.85 : 0.05, 'outPeakText');
}
function renderMeterBar(ctx, w, h, level, textId) {
ctx.clearRect(0, 0, w, h);
const barH = level * h;
const grad = ctx.createLinearGradient(0, h, 0, 0);
grad.addColorStop(0, '#38bdf8');
grad.addColorStop(0.7, '#f59e0b');
grad.addColorStop(1, '#ef4444');
ctx.fillStyle = grad;
ctx.fillRect(2, h - barH, w - 4, barH);
const dbVal = (20 * Math.log10(level)).toFixed(1);
document.getElementById(textId).innerText = isPlaying ? `${dbVal} dB` : '-inf dB';
}
renderFrame();
}
// Rotary Knob Drag Interactions
function setupKnobs() {
document.querySelectorAll('.knob-container').forEach(knob => {
let isDragging = false;
let startY = 0;
let startVal = parseFloat(knob.dataset.value);
const param = knob.dataset.param;
const min = parseFloat(knob.dataset.min);
const max = parseFloat(knob.dataset.max);
const unit = knob.dataset.unit || '';
const dial = knob.querySelector('.knob-dial');
const valText = knob.parentElement.querySelector('.knob-val');
function updateUI(val) {
const pct = (val - min) / (max - min);
const angle = -135 + pct * 270;
dial.style.transform = `rotate(${angle}deg)`;
if (valText) {
valText.innerText = `${val > 0 && unit==='dB' ? '+' : ''}${val.toFixed(1)} ${unit}`;
}
ozState[param] = val;
updateAudioGraphValues();
}
updateUI(startVal);
knob.addEventListener('pointerdown', e => {
isDragging = true;
startY = e.clientY;
startVal = ozState[param];
knob.setPointerCapture(e.pointerId);
});
knob.addEventListener('pointermove', e => {
if (!isDragging) return;
const deltaY = startY - e.clientY;
const range = max - min;
let newVal = startVal + (deltaY / 100) * range;
newVal = Math.min(max, Math.max(min, newVal));
updateUI(newVal);
});
knob.addEventListener('pointerup', e => {
isDragging = false;
knob.releasePointerCapture(e.pointerId);
});
});
}
// Module Switcher Navigation Logic
function setupModuleNavigation() {
const cardEq = document.getElementById('cardDynamicEq');
const cardImager = document.getElementById('cardImager');
const cardMaximizer = document.getElementById('cardMaximizer');
const viewEq = document.getElementById('viewDynamicEq');
const viewImager = document.getElementById('viewImager');
const viewMaximizer = document.getElementById('viewMaximizer');
function switchModule(activeCard, activeView, name) {
[cardEq, cardImager, cardMaximizer].forEach(c => c.classList.remove('oz-card-active'));
[viewEq, viewImager, viewMaximizer].forEach(v => v.classList.add('hidden'));
activeCard.classList.add('oz-card-active');
activeView.classList.remove('hidden');
ozState.activeModule = name;
}
cardEq.addEventListener('click', () => switchModule(cardEq, viewEq, 'eq'));
cardImager.addEventListener('click', () => switchModule(cardImager, viewImager, 'imager'));
cardMaximizer.addEventListener('click', () => switchModule(cardMaximizer, viewMaximizer, 'maximizer'));
}
// DOM Load Init
window.addEventListener('load', () => {
document.getElementById('playAudioBtn').addEventListener('click', () => {
if (isPlaying) stopAudioDemo();
else startAudioDemo();
});
document.getElementById('stopAudioBtn').addEventListener('click', stopAudioDemo);
setupKnobs();
setupModuleNavigation();
startCanvasRenderers();
});
</script>
</body>
</html>
