{"id":67,"date":"2026-03-15T08:34:17","date_gmt":"2026-03-15T08:34:17","guid":{"rendered":"https:\/\/tools.sanepo.com\/?post_type=tool&#038;p=67"},"modified":"2026-03-15T08:34:19","modified_gmt":"2026-03-15T08:34:19","slug":"audio-compressor-online","status":"publish","type":"tool","link":"https:\/\/tools.sanepo.com\/id\/features\/audio-compressor-online\/","title":{"rendered":"Audio Compressor Online"},"content":{"rendered":"\n<!-- \n  [WP-NanoTech] Audio Compressor Online\n  Zero Server Load - 100% Client Side Vanilla JS\n-->\n\n<!-- LameJS Library for MP3 Encoding on the client side -->\n<script src=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/lamejs\/1.2.1\/lame.min.js\"><\/script>\n\n<style>\n    @import url('https:\/\/fonts.googleapis.com\/css2?family=Inter:wght@400;500;600;700&display=swap');\n\n    \/* CSS Variables Default *\/\n    #wpnt-audio-compressor {\n        --bg-primary: #ffffff;\n        --bg-secondary: #f8fafc;\n        --border-color: #e2e8f0;\n        --accent-color: #4361ee;\n        --accent-hover: #3a56d4;\n        --glass-bg: rgba(255, 255, 255, 0.85);\n        --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);\n        --transition: all 0.3s ease;\n        \n        \/* Tool Specific Variables *\/\n        --wpnt-success: #10b981;\n        --wpnt-danger: #ef4444;\n        --wpnt-radius-lg: 16px;\n        --wpnt-radius-md: 12px;\n        --wpnt-radius-sm: 8px;\n        \n        font-family: 'Inter', sans-serif;\n        color: #1e293b;\n        width: 100%;\n        \/* max-width removed to allow full width stretching *\/\n        margin: 30px auto;\n        background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);\n        border: 1px solid var(--border-color);\n        border-radius: var(--wpnt-radius-lg);\n        box-shadow: var(--card-shadow);\n        padding: 32px;\n        box-sizing: border-box;\n        line-height: 1.5;\n        backdrop-filter: blur(10px);\n        -webkit-backdrop-filter: blur(10px);\n    }\n\n    #wpnt-audio-compressor * {\n        box-sizing: border-box;\n        transition: var(--transition);\n    }\n\n    \/* Dark Mode Adaptability *\/\n    @media (prefers-color-scheme: dark) {\n        #wpnt-audio-compressor {\n            --bg-primary: #0f172a;\n            --bg-secondary: #1e293b;\n            --border-color: #334155;\n            --glass-bg: rgba(15, 23, 42, 0.7);\n            color: #f1f5f9;\n        }\n    }\n\n    \/* Header *\/\n    #wpnt-audio-compressor .wpnt-header {\n        text-align: center;\n        margin-bottom: 24px;\n    }\n\n    #wpnt-audio-compressor h3 {\n        margin: 0 0 8px 0;\n        font-size: 1.75rem;\n        font-weight: 700;\n        letter-spacing: -0.025em;\n    }\n\n    #wpnt-audio-compressor p {\n        margin: 0;\n        font-size: 0.95rem;\n        opacity: 0.8;\n    }\n    \n    #wpnt-audio-compressor .wpnt-privacy-badge {\n        display: inline-block;\n        background: rgba(16, 185, 129, 0.1);\n        color: var(--wpnt-success);\n        border: 1px solid rgba(16, 185, 129, 0.2);\n        padding: 6px 12px;\n        border-radius: 20px;\n        font-size: 0.8rem;\n        font-weight: 600;\n        margin-top: 12px;\n    }\n\n    \/* Dropzone *\/\n    #wpnt-audio-compressor .wpnt-dropzone {\n        border: 2px dashed rgba(67, 97, 238, 0.4);\n        border-radius: var(--wpnt-radius-lg);\n        padding: 48px 24px;\n        text-align: center;\n        cursor: pointer;\n        background: var(--glass-bg);\n        position: relative;\n        overflow: hidden;\n        box-shadow: var(--card-shadow);\n        margin-bottom: 24px;\n    }\n\n    #wpnt-audio-compressor .wpnt-dropzone:hover,\n    #wpnt-audio-compressor .wpnt-dropzone.dragover {\n        border-color: var(--accent-color);\n        background: var(--bg-secondary);\n    }\n\n    #wpnt-audio-compressor .wpnt-dropzone input[type=\"file\"] {\n        display: none;\n    }\n\n    #wpnt-audio-compressor .wpnt-icon-upload {\n        color: var(--accent-color);\n        margin-bottom: 16px;\n        width: 48px;\n        height: 48px;\n    }\n\n    #wpnt-audio-compressor .file-info {\n        font-weight: 600;\n        color: var(--accent-color);\n        margin-top: 10px;\n        word-break: break-all;\n    }\n\n    \/* Settings Grid *\/\n    #wpnt-audio-compressor .wpnt-settings {\n        display: grid;\n        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));\n        gap: 20px;\n        margin-bottom: 24px;\n    }\n\n    #wpnt-audio-compressor .wpnt-setting-group {\n        background: var(--glass-bg);\n        padding: 16px 20px;\n        border-radius: var(--wpnt-radius-md);\n        border: 1px solid var(--border-color);\n        box-shadow: var(--card-shadow);\n    }\n\n    #wpnt-audio-compressor .wpnt-label {\n        display: flex;\n        justify-content: space-between;\n        align-items: center;\n        font-weight: 600;\n        font-size: 0.85rem;\n        text-transform: uppercase;\n        letter-spacing: 0.05em;\n        opacity: 0.8;\n        margin-bottom: 12px;\n    }\n\n    #wpnt-audio-compressor .wpnt-val {\n        color: var(--accent-color);\n        font-weight: 700;\n        opacity: 1;\n    }\n\n    \/* Modern Select *\/\n    #wpnt-audio-compressor select {\n        width: 100%;\n        padding: 10px 12px;\n        border-radius: var(--wpnt-radius-sm);\n        border: 1px solid var(--border-color);\n        background-color: var(--bg-primary);\n        font-family: inherit;\n        font-size: 0.95rem;\n        color: inherit;\n        outline: none;\n        cursor: pointer;\n        appearance: none;\n        background-image: url(\"data:image\/svg+xml;charset=UTF-8,%3csvg xmlns='http:\/\/www.w3.org\/2000\/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c\/polyline%3e%3c\/svg%3e\");\n        background-repeat: no-repeat;\n        background-position: right 12px center;\n        background-size: 16px;\n    }\n\n    #wpnt-audio-compressor select:focus {\n        border-color: var(--accent-color);\n        box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.15);\n    }\n\n    \/* Buttons *\/\n    #wpnt-audio-compressor .wpnt-btn {\n        background: var(--accent-color);\n        color: #ffffff;\n        border: none;\n        padding: 12px 24px;\n        border-radius: var(--wpnt-radius-sm);\n        cursor: pointer;\n        font-weight: 600;\n        font-size: 1rem;\n        display: inline-flex;\n        align-items: center;\n        justify-content: center;\n        text-decoration: none;\n        gap: 8px;\n        width: 100%;\n    }\n\n    #wpnt-audio-compressor .wpnt-btn:hover:not(:disabled) {\n        background: var(--accent-hover);\n        transform: translateY(-2px);\n        box-shadow: 0 4px 12px rgba(67, 97, 238, 0.25);\n    }\n\n    #wpnt-audio-compressor .wpnt-btn:disabled {\n        opacity: 0.5;\n        cursor: not-allowed;\n    }\n\n    \/* Progress Bar *\/\n    #wpnt-audio-compressor .progress-container {\n        display: none;\n        margin-top: 24px;\n        background: var(--glass-bg);\n        padding: 20px;\n        border-radius: var(--wpnt-radius-md);\n        border: 1px solid var(--border-color);\n    }\n\n    #wpnt-audio-compressor .progress-bar-bg {\n        width: 100%;\n        height: 8px;\n        background: var(--border-color);\n        border-radius: 4px;\n        overflow: hidden;\n        margin-top: 10px;\n    }\n\n    #wpnt-audio-compressor .progress-bar-fill {\n        height: 100%;\n        width: 0%;\n        background: var(--accent-color);\n        border-radius: 4px;\n        transition: width 0.1s linear;\n    }\n\n    \/* Results *\/\n    #wpnt-audio-compressor .wpnt-results {\n        display: none;\n        margin-top: 24px;\n    }\n\n    #wpnt-audio-compressor .wpnt-card {\n        border: 1px solid var(--border-color);\n        border-radius: var(--wpnt-radius-md);\n        padding: 20px;\n        background: var(--glass-bg);\n        display: flex;\n        flex-direction: column;\n        box-shadow: var(--card-shadow);\n        position: relative;\n    }\n\n    #wpnt-audio-compressor .wpnt-stats {\n        font-size: 0.9rem;\n        margin-bottom: 16px;\n    }\n\n    #wpnt-audio-compressor .wpnt-stat-row {\n        display: flex;\n        justify-content: space-between;\n        margin-bottom: 8px;\n        padding-bottom: 8px;\n        border-bottom: 1px dashed var(--border-color);\n    }\n\n    #wpnt-audio-compressor .wpnt-stat-row:last-child {\n        border-bottom: none;\n    }\n\n    #wpnt-audio-compressor .wpnt-badge {\n        display: inline-flex;\n        align-items: center;\n        padding: 4px 8px;\n        border-radius: 4px;\n        font-weight: 600;\n        font-size: 0.75rem;\n    }\n    #wpnt-audio-compressor .wpnt-badge.success { background: rgba(16, 185, 129, 0.15); color: var(--wpnt-success); }\n    \n    #wpnt-audio-compressor .custom-audio-player {\n        width: 100%;\n        margin-bottom: 16px;\n        border-radius: var(--wpnt-radius-sm);\n    }\n\n    \/* Responsiveness *\/\n    @media (max-width: 600px) {\n        #wpnt-audio-compressor {\n            padding: 20px 16px;\n        }\n        #wpnt-audio-compressor h3 {\n            font-size: 1.4rem;\n        }\n        #wpnt-audio-compressor .wpnt-settings {\n            grid-template-columns: 1fr;\n        }\n    }\n<\/style>\n\n<div id=\"wpnt-audio-compressor\">\n    \n    <div class=\"wpnt-header\">\n        <h3>Universal Audio Converter &#038; Compressor<\/h3>\n        <p>Convert and compress any audio format (FLAC, M4A, OGG, etc) to MP3 or WAV directly in your browser.<\/p>\n        <span class=\"wpnt-privacy-badge\">\n            <svg style=\"width:14px;height:14px;vertical-align:middle;margin-right:4px;\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"><\/path><\/svg>\n            100% Secure. Processed on your device.\n        <\/span>\n    <\/div>\n\n    <!-- Dropzone Area -->\n    <div class=\"wpnt-dropzone\" id=\"wpnt-dropzone\">\n        <input type=\"file\" id=\"wpnt-audio-input\" accept=\"audio\/*,video\/*\">\n        <svg class=\"wpnt-icon-upload\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n            <path d=\"M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4\"><\/path>\n            <polyline points=\"17 8 12 3 7 8\"><\/polyline>\n            <line x1=\"12\" y1=\"3\" x2=\"12\" y2=\"15\"><\/line>\n        <\/svg>\n        <p style=\"font-weight: 600;\">Click or Drag Audio File Here<\/p>\n        <p style=\"font-size: 0.8rem; margin-top: 5px;\">Max 50MB (Recommended for browsers)<\/p>\n        <div class=\"file-info\" id=\"wpnt-file-info\"><\/div>\n    <\/div>\n\n    <!-- Settings Grid -->\n    <div class=\"wpnt-settings\">\n        <!-- New Output Format Setting -->\n        <div class=\"wpnt-setting-group\">\n            <div class=\"wpnt-label\">\n                <span>Output Format<\/span>\n            <\/div>\n            <select id=\"wpnt-format\">\n                <option value=\"mp3\" selected>MP3 (Compressed)<\/option>\n                <option value=\"wav\">WAV (Lossless \/ High Quality)<\/option>\n            <\/select>\n        <\/div>\n\n        <div class=\"wpnt-setting-group\" id=\"wpnt-bitrate-group\">\n            <div class=\"wpnt-label\">\n                <span>Quality (Bitrate)<\/span>\n            <\/div>\n            <select id=\"wpnt-bitrate\">\n                <option value=\"64\">64 kbps (Very Small &#8211; Voice\/Speech)<\/option>\n                <option value=\"96\">96 kbps (Small &#8211; Podcasts)<\/option>\n                <option value=\"128\" selected>128 kbps (Standard &#8211; Good Quality)<\/option>\n                <option value=\"192\">192 kbps (High &#8211; Music Quality)<\/option>\n                <option value=\"256\">256 kbps (Premium &#8211; Near Lossless)<\/option>\n            <\/select>\n        <\/div>\n        <div class=\"wpnt-setting-group\">\n            <div class=\"wpnt-label\">\n                <span>Audio Channels<\/span>\n            <\/div>\n            <select id=\"wpnt-channels\">\n                <option value=\"2\" selected>Stereo (2 Channels)<\/option>\n                <option value=\"1\">Mono (1 Channel &#8211; Smaller Size)<\/option>\n            <\/select>\n        <\/div>\n    <\/div>\n\n    <!-- Action Button -->\n    <button class=\"wpnt-btn\" id=\"wpnt-btn-compress\" disabled>\n        <svg style=\"width:18px;height:18px;\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><circle cx=\"12\" cy=\"12\" r=\"10\"><\/circle><polyline points=\"12 6 12 12 16 14\"><\/polyline><\/svg>\n        Start Process\n    <\/button>\n\n    <!-- Progress Indicator -->\n    <div class=\"progress-container\" id=\"wpnt-progress-container\">\n        <div class=\"wpnt-label\" style=\"margin-bottom: 0;\">\n            <span id=\"wpnt-progress-status\">Processing Audio&#8230;<\/span>\n            <span class=\"wpnt-val\" id=\"wpnt-progress-text\">0%<\/span>\n        <\/div>\n        <div class=\"progress-bar-bg\">\n            <div class=\"progress-bar-fill\" id=\"wpnt-progress-fill\"><\/div>\n        <\/div>\n        <p style=\"font-size: 0.75rem; text-align: center; margin-top: 10px; opacity: 0.7;\">Please do not close this tab during the process.<\/p>\n    <\/div>\n\n    <!-- Results Area -->\n    <div class=\"wpnt-results\" id=\"wpnt-results\">\n        <div class=\"wpnt-card\">\n            <div class=\"wpnt-label\">\ud83c\udf89 Process Completed<\/div>\n            \n            <audio controls class=\"custom-audio-player\" id=\"wpnt-audio-preview\"><\/audio>\n\n            <div class=\"wpnt-stats\">\n                <div class=\"wpnt-stat-row\">\n                    <span>Original Size:<\/span>\n                    <strong id=\"wpnt-stat-original\">0 MB<\/strong>\n                <\/div>\n                <div class=\"wpnt-stat-row\">\n                    <span>New Size:<\/span>\n                    <strong id=\"wpnt-stat-new\">0 MB<\/strong>\n                <\/div>\n                <div class=\"wpnt-stat-row\">\n                    <span>Space Saved:<\/span>\n                    <span class=\"wpnt-badge success\" id=\"wpnt-stat-saved\">0%<\/span>\n                <\/div>\n            <\/div>\n\n            <a href=\"#\" class=\"wpnt-btn\" id=\"wpnt-btn-download\" download=\"converted_audio.mp3\">\n                <svg style=\"width:18px;height:18px;\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4\"><\/path><polyline points=\"7 10 12 15 17 10\"><\/polyline><line x1=\"12\" y1=\"15\" x2=\"12\" y2=\"3\"><\/line><\/svg>\n                Download Audio\n            <\/a>\n        <\/div>\n    <\/div>\n\n<\/div>\n\n<script>\n\/**\n * WP-NanoTech Audio Compressor & Converter Logic\n * Isolated using IIFE to prevent conflicts with WordPress libraries (No Conflict)\n *\/\n(function() {\n    \/\/ --- DOM Elements ---\n    const dropzone = document.getElementById('wpnt-dropzone');\n    const fileInput = document.getElementById('wpnt-audio-input');\n    const fileInfo = document.getElementById('wpnt-file-info');\n    const btnCompress = document.getElementById('wpnt-btn-compress');\n    \n    const progressContainer = document.getElementById('wpnt-progress-container');\n    const progressFill = document.getElementById('wpnt-progress-fill');\n    const progressText = document.getElementById('wpnt-progress-text');\n    const progressStatus = document.getElementById('wpnt-progress-status');\n    \n    const resultsArea = document.getElementById('wpnt-results');\n    const statOriginal = document.getElementById('wpnt-stat-original');\n    const statNew = document.getElementById('wpnt-stat-new');\n    const statSaved = document.getElementById('wpnt-stat-saved');\n    const audioPreview = document.getElementById('wpnt-audio-preview');\n    const btnDownload = document.getElementById('wpnt-btn-download');\n\n    \/\/ UI Configuration Elements\n    const formatSelect = document.getElementById('wpnt-format');\n    const bitrateSelect = document.getElementById('wpnt-bitrate');\n    const bitrateGroup = document.getElementById('wpnt-bitrate-group');\n\n    let currentFile = null;\n\n    \/\/ --- Dynamic UI Handling ---\n    \/\/ Disable bitrate selection if WAV (lossless) is selected\n    formatSelect.addEventListener('change', (e) => {\n        if (e.target.value === 'wav') {\n            bitrateSelect.disabled = true;\n            bitrateGroup.style.opacity = '0.5';\n        } else {\n            bitrateSelect.disabled = false;\n            bitrateGroup.style.opacity = '1';\n        }\n    });\n\n    \/\/ --- Format Bytes Helper ---\n    function formatBytes(bytes, decimals = 2) {\n        if (bytes === 0) return '0 Bytes';\n        const k = 1024;\n        const dm = decimals < 0 ? 0 : decimals;\n        const sizes = ['Bytes', 'KB', 'MB', 'GB'];\n        const i = Math.floor(Math.log(bytes) \/ Math.log(k));\n        return parseFloat((bytes \/ Math.pow(k, i)).toFixed(dm)) + ' ' + sizes[i];\n    }\n\n    \/\/ --- File Handling Events ---\n    const handleFiles = (files) => {\n        \/\/ Accepts audio\/ and also video\/ types because AudioContext can extract audio from videos\n        if (files.length > 0 && (files[0].type.startsWith('audio\/') || files[0].type.startsWith('video\/'))) {\n            currentFile = files[0];\n            fileInfo.innerText = `${currentFile.name} (${formatBytes(currentFile.size)})`;\n            btnCompress.disabled = false;\n            resultsArea.style.display = 'none';\n        } else {\n            alert('Please select a valid Audio or Video file!');\n        }\n    };\n\n    dropzone.addEventListener('click', () => fileInput.click());\n    fileInput.addEventListener('change', (e) => handleFiles(e.target.files));\n\n    \/\/ Drag and drop events\n    ['dragenter', 'dragover', 'dragleave', 'drop'].forEach(eventName => {\n        dropzone.addEventListener(eventName, preventDefaults, false);\n    });\n    function preventDefaults(e) { e.preventDefault(); e.stopPropagation(); }\n    \n    dropzone.addEventListener('dragover', () => dropzone.classList.add('dragover'));\n    dropzone.addEventListener('dragleave', () => dropzone.classList.remove('dragover'));\n    dropzone.addEventListener('drop', (e) => {\n        dropzone.classList.remove('dragover');\n        handleFiles(e.dataTransfer.files);\n    });\n\n    \/\/ --- Core Compression & Conversion Engine ---\n    btnCompress.addEventListener('click', async () => {\n        if (!currentFile) return;\n\n        \/\/ Get settings\n        const outputFormat = document.getElementById('wpnt-format').value;\n        const kbps = parseInt(document.getElementById('wpnt-bitrate').value);\n        const forceMono = document.getElementById('wpnt-channels').value === \"1\";\n\n        if (outputFormat === 'mp3' && typeof lamejs === 'undefined') {\n            alert('LameJS library is loading, please try again in a few seconds.');\n            return;\n        }\n\n        \/\/ Setup UI\n        btnCompress.disabled = true;\n        progressContainer.style.display = 'block';\n        resultsArea.style.display = 'none';\n        progressStatus.innerText = 'Reading file...';\n        updateProgress(5);\n\n        try {\n            \/\/ 1. Read File as ArrayBuffer\n            const arrayBuffer = await currentFile.arrayBuffer();\n            \n            \/\/ 2. Decode Audio (Native Browser API reads almost ANY format)\n            progressStatus.innerText = 'Decoding Audio... (This might take a while)';\n            updateProgress(15);\n            const audioCtx = new (window.AudioContext || window.webkitAudioContext)();\n            const audioBuffer = await audioCtx.decodeAudioData(arrayBuffer);\n\n            \/\/ 3. Process based on selected Output Format\n            if (outputFormat === 'mp3') {\n                \/\/ =============== MP3 ENCODING LOGIC ===============\n                const sampleRate = audioBuffer.sampleRate;\n                const channels = forceMono ? 1 : audioBuffer.numberOfChannels;\n                const mp3encoder = new lamejs.Mp3Encoder(channels, sampleRate, kbps);\n                const mp3Data = [];\n\n                const left = audioBuffer.getChannelData(0);\n                const right = audioBuffer.numberOfChannels > 1 && !forceMono ? audioBuffer.getChannelData(1) : left;\n\n                const sampleBlockSize = 1152; \/\/ Standard MP3 frame size\n                const leftInt16 = new Int16Array(left.length);\n                const rightInt16 = new Int16Array(right.length);\n\n                progressStatus.innerText = 'Converting Samples...';\n                updateProgress(25);\n\n                \/\/ Float32 to Int16 conversion\n                for (let i = 0; i < left.length; i++) {\n                    leftInt16[i] = left[i] < 0 ? left[i] * 32768 : left[i] * 32767;\n                    if (channels > 1) {\n                        rightInt16[i] = right[i] < 0 ? right[i] * 32768 : right[i] * 32767;\n                    }\n                }\n\n                progressStatus.innerText = 'Compressing to MP3...';\n                const totalSamples = leftInt16.length;\n\n                \/\/ Chunk-by-Chunk Encoding Process (Prevents Browser Freeze)\n                for (let i = 0; i < totalSamples; i += sampleBlockSize) {\n                    const leftChunk = leftInt16.subarray(i, i + sampleBlockSize);\n                    let mp3buf;\n                    \n                    if (channels > 1) {\n                        const rightChunk = rightInt16.subarray(i, i + sampleBlockSize);\n                        mp3buf = mp3encoder.encodeBuffer(leftChunk, rightChunk);\n                    } else {\n                        mp3buf = mp3encoder.encodeBuffer(leftChunk);\n                    }\n\n                    if (mp3buf.length > 0) {\n                        mp3Data.push(mp3buf);\n                    }\n\n                    if (i % (sampleBlockSize * 100) === 0) {\n                        const percent = 25 + Math.floor((i \/ totalSamples) * 70);\n                        updateProgress(percent);\n                        await new Promise(resolve => setTimeout(resolve, 0)); \/\/ Breather\n                    }\n                }\n\n                \/\/ Finalize encoding\n                const finalBuf = mp3encoder.flush();\n                if (finalBuf.length > 0) {\n                    mp3Data.push(finalBuf);\n                }\n\n                updateProgress(100);\n                progressStatus.innerText = 'Done!';\n                const blob = new Blob(mp3Data, { type: 'audio\/mp3' });\n                displayResults(blob, 'mp3');\n\n            } else if (outputFormat === 'wav') {\n                \/\/ =============== WAV (LOSSLESS) ENCODING LOGIC ===============\n                progressStatus.innerText = 'Converting to WAV (Lossless)...';\n                updateProgress(25);\n\n                const numChannels = forceMono ? 1 : audioBuffer.numberOfChannels;\n                const sampleRate = audioBuffer.sampleRate;\n                const bitDepth = 16;\n                const bytesPerSample = bitDepth \/ 8;\n                const blockAlign = numChannels * bytesPerSample;\n                \n                const left = audioBuffer.getChannelData(0);\n                const right = numChannels > 1 && !forceMono ? audioBuffer.getChannelData(1) : left;\n                const numSamples = left.length;\n\n                \/\/ Allocate memory for WAV Header + Audio Data\n                const buffer = new ArrayBuffer(44 + numSamples * blockAlign);\n                const view = new DataView(buffer);\n\n                \/\/ Helper to write strings\n                const writeString = (view, offset, string) => {\n                    for(let i=0; i<string.length; i++) {\n                        view.setUint8(offset + i, string.charCodeAt(i));\n                    }\n                };\n\n                \/\/ Write WAV Header\n                writeString(view, 0, 'RIFF');\n                view.setUint32(4, 36 + numSamples * blockAlign, true);\n                writeString(view, 8, 'WAVE');\n                writeString(view, 12, 'fmt ');\n                view.setUint32(16, 16, true);\n                view.setUint16(20, 1, true); \/\/ PCM Format\n                view.setUint16(22, numChannels, true);\n                view.setUint32(24, sampleRate, true);\n                view.setUint32(28, sampleRate * blockAlign, true); \/\/ ByteRate\n                view.setUint16(32, blockAlign, true);\n                view.setUint16(34, bitDepth, true);\n                writeString(view, 36, 'data');\n                view.setUint32(40, numSamples * blockAlign, true);\n\n                let offset = 44;\n                const chunkSize = 44100 * 2; \/\/ Process 2 seconds at a time to prevent freeze\n\n                for (let i = 0; i < numSamples; i += chunkSize) {\n                    const end = Math.min(i + chunkSize, numSamples);\n                    for (let j = i; j < end; j++) {\n                        \/\/ Left Channel\n                        let sampleL = Math.max(-1, Math.min(1, left[j]));\n                        view.setInt16(offset, sampleL < 0 ? sampleL * 0x8000 : sampleL * 0x7FFF, true);\n                        offset += 2;\n                        \n                        \/\/ Right Channel (if stereo)\n                        if (numChannels > 1) {\n                            let sampleR = Math.max(-1, Math.min(1, right[j]));\n                            view.setInt16(offset, sampleR < 0 ? sampleR * 0x8000 : sampleR * 0x7FFF, true);\n                            offset += 2;\n                        }\n                    }\n                    \/\/ Update Progress\n                    const percent = 25 + Math.floor((end \/ numSamples) * 70);\n                    updateProgress(percent);\n                    await new Promise(resolve => setTimeout(resolve, 0)); \/\/ Breather\n                }\n\n                updateProgress(100);\n                progressStatus.innerText = 'Done!';\n                const blob = new Blob([view], { type: 'audio\/wav' });\n                displayResults(blob, 'wav');\n            }\n\n        } catch (error) {\n            console.error(error);\n            alert(\"An error occurred while processing the file. Make sure the file is not corrupted.\");\n        } finally {\n            btnCompress.disabled = false;\n            setTimeout(() => { progressContainer.style.display = 'none'; }, 1500);\n        }\n    });\n\n    \/\/ --- Helper Functions ---\n    function updateProgress(percent) {\n        progressFill.style.width = `${percent}%`;\n        progressText.innerText = `${percent}%`;\n    }\n\n    function displayResults(compressedBlob, extension) {\n        const originalSize = currentFile.size;\n        const newSize = compressedBlob.size;\n        \n        let savedPercent = ((originalSize - newSize) \/ originalSize) * 100;\n        \n        statOriginal.innerText = formatBytes(originalSize);\n        statNew.innerText = formatBytes(newSize);\n\n        \/\/ WAV files are uncompressed and often larger than the original if original was compressed\n        if (savedPercent < 0) {\n            statSaved.innerText = `+${Math.abs(savedPercent).toFixed(1)}% (Larger due to Lossless)`;\n            statSaved.className = 'wpnt-badge neutral';\n        } else {\n            statSaved.innerText = `${savedPercent.toFixed(1)}%`;\n            statSaved.className = 'wpnt-badge ' + (savedPercent > 20 ? 'success' : 'neutral');\n        }\n\n        \/\/ Setup Audio Preview Player\n        const audioUrl = URL.createObjectURL(compressedBlob);\n        audioPreview.src = audioUrl;\n\n        \/\/ Setup Download Button\n        const safeName = currentFile.name.replace(\/\\.[^\/.]+$\/, \"\") + \"-converted.\" + extension;\n        btnDownload.href = audioUrl;\n        btnDownload.download = safeName;\n\n        resultsArea.style.display = 'block';\n    }\n\n})();\n<\/script>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Universal Audio Converter &#038; Compressor Convert and compress any audio format (FLAC, M4A, OGG, etc) to MP3 or WAV directly in your browser. 100% Secure. Processed on your device. Click or Drag Audio File Here Max 50MB (Recommended for browsers) Output Format MP3 (Compressed)WAV (Lossless \/ High Quality) Quality (Bitrate) 64 kbps (Very Small &#8211; [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-67","tool","type-tool","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/tools.sanepo.com\/id\/wp-json\/wp\/v2\/tool\/67","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tools.sanepo.com\/id\/wp-json\/wp\/v2\/tool"}],"about":[{"href":"https:\/\/tools.sanepo.com\/id\/wp-json\/wp\/v2\/types\/tool"}],"wp:attachment":[{"href":"https:\/\/tools.sanepo.com\/id\/wp-json\/wp\/v2\/media?parent=67"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}