{"id":15506,"date":"2026-07-02T17:27:34","date_gmt":"2026-07-02T08:27:34","guid":{"rendered":"https:\/\/rakkokeyword.com\/techo\/?p=15506"},"modified":"2026-07-02T17:27:34","modified_gmt":"2026-07-02T08:27:34","slug":"tool-m4a-wav","status":"publish","type":"post","link":"https:\/\/rakkokeyword.com\/techo\/tool-m4a-wav\/","title":{"rendered":"M4A\u2192WAV\u5909\u63db\u30c4\u30fc\u30eb"},"content":{"rendered":"\n<div id=\"m4atowav_wrapper\" style=\"width: 100%; box-sizing: border-box; font-family: sans-serif; color: #333; line-height: 1.6; margin-bottom: 40px;\">\n    <style>\n        #m4atowav_wrapper * {\n            box-sizing: border-box;\n        }\n        .m4atowav_btn {\n            height: 44px;\n            font-size: 16px;\n            font-weight: bold;\n            border: none;\n            border-radius: 4px;\n            cursor: pointer;\n            transition: opacity 0.2s;\n            display: flex;\n            align-items: center;\n            justify-content: center;\n            width: 100%;\n        }\n        .m4atowav_btn:hover:not(:disabled) {\n            opacity: 0.8;\n        }\n        .m4atowav_btn:disabled {\n            background-color: #cccccc !important;\n            cursor: not-allowed;\n            color: #666666 !important;\n        }\n        .m4atowav_btn_primary {\n            background-color: #13284B;\n            color: #ffffff;\n        }\n        .m4atowav_btn_secondary {\n            background-color: #666666;\n            color: #ffffff;\n        }\n        #m4atowav_drop_zone {\n            border: 2px dashed #999;\n            border-radius: 8px;\n            background-color: #f9f9f9;\n            padding: 40px 20px;\n            text-align: center;\n            cursor: pointer;\n            margin-bottom: 20px;\n            transition: background-color 0.2s, border-color 0.2s;\n        }\n        #m4atowav_drop_zone.m4atowav_dragover {\n            background-color: #e2e8f0;\n            border-color: #13284B;\n        }\n        .m4atowav_info_box {\n            background-color: #f0f0f0;\n            padding: 20px;\n            border-radius: 8px;\n            margin-bottom: 20px;\n        }\n        .m4atowav_error {\n            color: #d9534f;\n            font-weight: bold;\n            margin-bottom: 20px;\n            padding: 10px;\n            background-color: #fdf0f0;\n            border-radius: 4px;\n            display: none;\n        }\n        .m4atowav_hidden {\n            display: none !important;\n        }\n        .m4atowav_flex_container {\n            display: flex;\n            gap: 10px;\n            flex-wrap: wrap;\n        }\n        .m4atowav_flex_item {\n            flex: 1 1 200px;\n        }\n    <\/style>\n\n    <div id=\"m4atowav_drop_zone\">\n        <p style=\"margin: 0; font-size: 18px; font-weight: bold; color: #13284B;\">M4A\u30d5\u30a1\u30a4\u30eb\u3092\u9078\u629e<\/p>\n        <p style=\"margin: 10px 0 0 0; font-size: 14px;\">\u3053\u3053\u3078\u30c9\u30e9\u30c3\u30b0\uff06\u30c9\u30ed\u30c3\u30d7\u3001\u307e\u305f\u306f\u30bf\u30c3\u30d7\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n        <p style=\"margin: 10px 0 0 0; font-size: 12px; color: #666;\">\u203b1\u30d5\u30a1\u30a4\u30eb\u306e\u307f\u3001\u4e0a\u965050MB\u306eM4A\u30d5\u30a1\u30a4\u30eb<\/p>\n        <input type=\"file\" id=\"m4atowav_file_input\" accept=\".m4a,audio\/mp4,audio\/x-m4a\" class=\"m4atowav_hidden\">\n    <\/div>\n\n    <div id=\"m4atowav_error_msg\" class=\"m4atowav_error\"><\/div>\n\n    <div id=\"m4atowav_info_area\" class=\"m4atowav_info_box m4atowav_hidden\">\n        <p style=\"margin: 0 0 15px 0; font-weight: bold; font-size: 18px; word-break: break-all;\" id=\"m4atowav_file_name\"><\/p>\n        <p style=\"margin: 0 0 8px 0; font-size: 14px;\">\u5143\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba: <span id=\"m4atowav_file_size\"><\/span><\/p>\n        <p style=\"margin: 0 0 8px 0; font-size: 14px;\">\u30b9\u30c6\u30fc\u30bf\u30b9: <span id=\"m4atowav_status\" style=\"font-weight: bold; color: #13284B;\">\u6e96\u5099\u5b8c\u4e86<\/span><\/p>\n        \n        <div style=\"margin-top: 15px; padding-top: 15px; border-top: 1px solid #ddd;\">\n            <p style=\"margin: 0 0 5px 0; font-size: 13px; font-weight: bold;\">\u3010WAV\u5f62\u5f0f\u306b\u95a2\u3059\u308b\u3054\u6ce8\u610f\u3011<\/p>\n            <p style=\"margin: 0; font-size: 13px; color: #555;\">WAV\u306f\u975e\u5727\u7e2e\u5f62\u5f0f\u306e\u305f\u3081\u3001\u5909\u63db\u5f8c\u306f\u5143\u30d5\u30a1\u30a4\u30eb\u3088\u308a\u5bb9\u91cf\u304c\u5927\u304d\u304f\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n            <p id=\"m4atowav_estimated_size_area\" class=\"m4atowav_hidden\" style=\"margin: 5px 0 0 0; font-size: 13px; color: #13284B; font-weight: bold;\">\n                \u5909\u63db\u5f8c\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba: <span id=\"m4atowav_estimated_size\"><\/span>\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <div id=\"m4atowav_action_area\" class=\"m4atowav_flex_container m4atowav_hidden\">\n        <div class=\"m4atowav_flex_item\" id=\"m4atowav_convert_wrap\">\n            <button id=\"m4atowav_convert_btn\" class=\"m4atowav_btn m4atowav_btn_primary\">WAV\u3078\u5909\u63db\u3059\u308b<\/button>\n        <\/div>\n        <div class=\"m4atowav_flex_item m4atowav_hidden\" id=\"m4atowav_download_wrap\">\n            <a id=\"m4atowav_download_link\" class=\"m4atowav_btn m4atowav_btn_primary\" style=\"text-decoration: none;\" download>WAV\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/a>\n        <\/div>\n        <div class=\"m4atowav_flex_item\">\n            <button id=\"m4atowav_reset_btn\" class=\"m4atowav_btn m4atowav_btn_secondary\">\u5225\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u9078\u629e<\/button>\n        <\/div>\n    <\/div>\n\n    <script>\n        document.addEventListener('DOMContentLoaded', function() {\n            const dropZone = document.getElementById('m4atowav_drop_zone');\n            const fileInput = document.getElementById('m4atowav_file_input');\n            const errorMsg = document.getElementById('m4atowav_error_msg');\n            const infoArea = document.getElementById('m4atowav_info_area');\n            const fileNameEl = document.getElementById('m4atowav_file_name');\n            const fileSizeEl = document.getElementById('m4atowav_file_size');\n            const statusEl = document.getElementById('m4atowav_status');\n            const actionArea = document.getElementById('m4atowav_action_area');\n            const convertWrap = document.getElementById('m4atowav_convert_wrap');\n            const convertBtn = document.getElementById('m4atowav_convert_btn');\n            const downloadWrap = document.getElementById('m4atowav_download_wrap');\n            const downloadLink = document.getElementById('m4atowav_download_link');\n            const resetBtn = document.getElementById('m4atowav_reset_btn');\n            const estimatedSizeArea = document.getElementById('m4atowav_estimated_size_area');\n            const estimatedSizeEl = document.getElementById('m4atowav_estimated_size');\n\n            let currentFile = null;\n            let isConverting = false;\n            let objectUrl = null;\n\n            const MAX_FILE_SIZE = 50 * 1024 * 1024; \/\/ 50MB\n\n            function escapeHTML(str) {\n                if (typeof str !== 'string') return str;\n                return str.replace(\/[&'`\"<>]\/g, function(match) {\n                    switch(match) {\n                        case '&': return '&' + 'amp;';\n                        case \"'\": return '&' + '#x27;';\n                        case '`': return '&' + '#x60;';\n                        case '\"': return '&' + 'quot;';\n                        case '<': return '&#038;' + 'lt;';\n                        case '>': return '&' + 'gt;';\n                    }\n                });\n            }\n\n            function formatBytes(bytes) {\n                if (bytes === 0) return '0 Bytes';\n                const k = 1024;\n                const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB'];\n                const i = Math.floor(Math.log(bytes) \/ Math.log(k));\n                return parseFloat((bytes \/ Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];\n            }\n\n            function resetUI() {\n                if (isConverting) return;\n                currentFile = null;\n                fileInput.value = '';\n                if (objectUrl) {\n                    URL.revokeObjectURL(objectUrl);\n                    objectUrl = null;\n                }\n                errorMsg.style.display = 'none';\n                infoArea.classList.add('m4atowav_hidden');\n                actionArea.classList.add('m4atowav_hidden');\n                convertWrap.classList.remove('m4atowav_hidden');\n                downloadWrap.classList.add('m4atowav_hidden');\n                estimatedSizeArea.classList.add('m4atowav_hidden');\n                dropZone.style.display = 'block';\n                convertBtn.disabled = false;\n                statusEl.textContent = '\u6e96\u5099\u5b8c\u4e86';\n                statusEl.style.color = '#13284B';\n                \n                \/\/ \u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30dc\u30bf\u30f3\u306e\u72b6\u614b\u30ea\u30bb\u30c3\u30c8\n                downloadLink.textContent = 'WAV\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9';\n                downloadLink.style.pointerEvents = '';\n                downloadLink.style.opacity = '';\n                downloadLink.style.cursor = '';\n            }\n\n            function showError(msg) {\n                errorMsg.innerHTML = escapeHTML(msg);\n                errorMsg.style.display = 'block';\n                infoArea.classList.add('m4atowav_hidden');\n                actionArea.classList.add('m4atowav_hidden');\n                dropZone.style.display = 'block';\n                currentFile = null;\n            }\n\n            function handleFile(file) {\n                if (isConverting) return;\n                errorMsg.style.display = 'none';\n\n                if (!file) return;\n\n                const fileName = file.name.toLowerCase();\n                if (!fileName.endsWith('.m4a')) {\n                    showError('\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3067\u3059\u3002M4A\u30d5\u30a1\u30a4\u30eb\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002');\n                    return;\n                }\n\n                if (file.size > MAX_FILE_SIZE) {\n                    showError('\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u304c\u5927\u304d\u3059\u304e\u307e\u3059\u300250MB\u4ee5\u4e0b\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002');\n                    return;\n                }\n\n                currentFile = file;\n                \n                dropZone.style.display = 'none';\n                infoArea.classList.remove('m4atowav_hidden');\n                actionArea.classList.remove('m4atowav_hidden');\n                \n                fileNameEl.innerHTML = escapeHTML(file.name);\n                fileSizeEl.innerHTML = escapeHTML(formatBytes(file.size));\n                statusEl.innerHTML = '\u6e96\u5099\u5b8c\u4e86';\n                statusEl.style.color = '#13284B';\n            }\n\n            dropZone.addEventListener('click', () => {\n                if (!isConverting) fileInput.click();\n            });\n\n            dropZone.addEventListener('dragover', (e) => {\n                e.preventDefault();\n                e.stopPropagation();\n                if (!isConverting) dropZone.classList.add('m4atowav_dragover');\n            });\n\n            dropZone.addEventListener('dragleave', (e) => {\n                e.preventDefault();\n                e.stopPropagation();\n                dropZone.classList.remove('m4atowav_dragover');\n            });\n\n            dropZone.addEventListener('drop', (e) => {\n                e.preventDefault();\n                e.stopPropagation();\n                dropZone.classList.remove('m4atowav_dragover');\n                if (isConverting) return;\n\n                if (e.dataTransfer.files && e.dataTransfer.files.length > 0) {\n                    if (e.dataTransfer.files.length > 1) {\n                        showError('\u4e00\u5ea6\u306b\u9078\u629e\u3067\u304d\u308b\u306e\u306f1\u30d5\u30a1\u30a4\u30eb\u306e\u307f\u3067\u3059\u3002');\n                        return;\n                    }\n                    handleFile(e.dataTransfer.files[0]);\n                }\n            });\n\n            fileInput.addEventListener('change', (e) => {\n                if (e.target.files && e.target.files.length > 0) {\n                    handleFile(e.target.files[0]);\n                }\n            });\n\n            resetBtn.addEventListener('click', resetUI);\n\n            downloadLink.addEventListener('click', () => {\n                \/\/ \u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30dc\u30bf\u30f3\u3092\u975e\u6d3b\u6027\u5316\u3057\u3066\u9023\u6253\u3092\u9632\u3050\n                downloadLink.textContent = '\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u5b8c\u4e86';\n                downloadLink.style.pointerEvents = 'none';\n                downloadLink.style.opacity = '0.7';\n                downloadLink.style.cursor = 'default';\n            });\n\n            convertBtn.addEventListener('click', async () => {\n                if (!currentFile || isConverting) return;\n                \n                isConverting = true;\n                convertBtn.disabled = true;\n                resetBtn.disabled = true;\n                statusEl.innerHTML = '\u8aad\u307f\u8fbc\u307f\u30fb\u30c7\u30b3\u30fc\u30c9\u4e2d... (\u6570\u79d2\u304b\u304b\u308a\u307e\u3059)';\n                \n                let audioCtx = null;\n\n                try {\n                    const AudioContext = window.AudioContext || window.webkitAudioContext;\n                    if (!AudioContext) {\n                        throw new Error('\u304a\u4f7f\u3044\u306e\u30d6\u30e9\u30a6\u30b6\u306f\u97f3\u58f0\u5909\u63db\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u305b\u3093\u3002');\n                    }\n                    audioCtx = new AudioContext();\n\n                    const arrayBuffer = await new Promise((resolve, reject) => {\n                        const reader = new FileReader();\n                        reader.onload = (e) => resolve(e.target.result);\n                        reader.onerror = () => reject(new Error('\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u3081\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u5225\u306eM4A\u30d5\u30a1\u30a4\u30eb\u3092\u304a\u8a66\u3057\u304f\u3060\u3055\u3044\u3002'));\n                        reader.readAsArrayBuffer(currentFile);\n                    });\n\n                    \/\/ UI\u63cf\u753b\u3092\u5f37\u5236\u66f4\u65b0\u3055\u305b\u308b\u305f\u3081\u306e\u30a6\u30a7\u30a4\u30c8\n                    await new Promise(resolve => setTimeout(resolve, 50));\n\n                    let audioBuffer;\n                    try {\n                        audioBuffer = await audioCtx.decodeAudioData(arrayBuffer);\n                    } catch (err) {\n                        throw new Error('\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u3081\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u30d5\u30a1\u30a4\u30eb\u304c\u7834\u640d\u3057\u3066\u3044\u308b\u304b\u3001\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002');\n                    }\n\n                    statusEl.innerHTML = 'WAV\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3078\u30a8\u30f3\u30b3\u30fc\u30c9\u4e2d...';\n                    await new Promise(resolve => setTimeout(resolve, 50));\n\n                    const wavBlob = audioBufferToWav(audioBuffer);\n\n                    objectUrl = URL.createObjectURL(wavBlob);\n                    \n                    const originalName = currentFile.name;\n                    const newName = originalName.substring(0, originalName.lastIndexOf('.')) + '.wav';\n                    downloadLink.href = objectUrl;\n                    downloadLink.download = newName;\n\n                    statusEl.innerHTML = '\u5909\u63db\u5b8c\u4e86';\n                    statusEl.style.color = '#2e7d32'; \/\/ \u5b8c\u4e86\u3092\u793a\u3059\u7dd1\u8272\n                    \n                    estimatedSizeEl.innerHTML = escapeHTML(formatBytes(wavBlob.size));\n                    estimatedSizeArea.classList.remove('m4atowav_hidden');\n\n                    convertWrap.classList.add('m4atowav_hidden');\n                    downloadWrap.classList.remove('m4atowav_hidden');\n\n                } catch (error) {\n                    statusEl.innerHTML = '\u5909\u63db\u30a8\u30e9\u30fc';\n                    statusEl.style.color = '#d9534f';\n                    let alertMsg = '\u5909\u63db\u4e2d\u306b\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3057\u305f\u3002';\n                    if (error && error.message) {\n                        alertMsg = error.message;\n                    }\n                    showError(alertMsg);\n                } finally {\n                    if (audioCtx && audioCtx.state !== 'closed') {\n                        audioCtx.close();\n                    }\n                    isConverting = false;\n                    convertBtn.disabled = false;\n                    resetBtn.disabled = false;\n                }\n            });\n\n            function audioBufferToWav(buffer) {\n                const numOfChan = buffer.numberOfChannels;\n                const length = buffer.length * numOfChan * 2;\n                const bufferOut = new ArrayBuffer(44 + length);\n                const view = new DataView(bufferOut);\n                const channels = [];\n                let i, sample;\n                let offset = 0;\n                let pos = 0;\n\n                function setUint16(data) {\n                    view.setUint16(offset, data, true);\n                    offset += 2;\n                }\n\n                function setUint32(data) {\n                    view.setUint32(offset, data, true);\n                    offset += 4;\n                }\n\n                setUint32(0x46464952); \/\/ \"RIFF\"\n                setUint32(36 + length); \/\/ file length\n                setUint32(0x45564157); \/\/ \"WAVE\"\n\n                setUint32(0x20746d66); \/\/ \"fmt \" chunk\n                setUint32(16); \/\/ length = 16\n                setUint16(1); \/\/ PCM\n                setUint16(numOfChan);\n                setUint32(buffer.sampleRate);\n                setUint32(buffer.sampleRate * 2 * numOfChan); \/\/ avg. bytes\/sec\n                setUint16(numOfChan * 2); \/\/ block-align\n                setUint16(16); \/\/ 16-bit\n\n                setUint32(0x61746164); \/\/ \"data\" - chunk\n                setUint32(length); \/\/ chunk length\n\n                for(i = 0; i < buffer.numberOfChannels; i++) {\n                    channels.push(buffer.getChannelData(i));\n                }\n\n                while(pos < buffer.length) {\n                    for(i = 0; i < numOfChan; i++) {\n                        sample = Math.max(-1, Math.min(1, channels[i][pos]));\n                        sample = (0.5 + sample < 0 ? sample * 32768 : sample * 32767)|0;\n                        view.setInt16(offset, sample, true);\n                        offset += 2;\n                    }\n                    pos++;\n                }\n\n                return new Blob([view], {type: \"audio\/wav\"});\n            }\n        });\n    <\/script>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d6\u30e9\u30a6\u30b6\u4e0a\u3067M4A\u30d5\u30a1\u30a4\u30eb\u306e\u97f3\u58f0\u3092WAV\u30d5\u30a1\u30a4\u30eb\u306b\u5909\u63db\u3067\u304d\u308b\u7121\u6599\u30c4\u30fc\u30eb\u3067\u3059\u3002 \u30bd\u30d5\u30c8\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3084\u4f1a\u54e1\u767b\u9332\u306f\u4e00\u5207\u4e0d\u8981\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u9078\u629e\u3059\u308b\u3060\u3051\u3067\u3059\u3050\u306b\u5909\u63db\u3092\u958b\u59cb\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-0\">\u3053\u306e\u30c4\u30fc\u30eb\u3067\u3067\u304d\u308b\u3053\u3068<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u304a\u624b\u6301\u3061\u306e\u300cM4A\u5f62\u5f0f\u300d\u306e\u97f3\u58f0\u30d5\u30a1\u30a4\u30eb\u3092\u3001\u6c4e\u7528\u6027\u306e\u9ad8\u3044\u300cWAV\u5f62\u5f0f\u300d\u306b\u30d6\u30e9\u30a6\u30b6\u4e0a\u3067\u7d20\u65e9\u304f\u5909\u63db\u3057\u307e\u3059\u3002\u4f7f\u3044\u65b9\u306f\u975e\u5e38\u306b\u30b7\u30f3\u30d7\u30eb\u3067\u3001\u753b\u9762\u4e0a\u306e\u67a0\u5185\u306b\u30d5\u30a1\u30a4\u30eb\u3092\u30c9\u30e9\u30c3\u30b0\uff06\u30c9\u30ed\u30c3\u30d7\u3059\u308b\u304b\u3001\u30bf\u30c3\u30d7\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u3092\u9078\u629e\u3057\u3001\u300cWAV\u3078\u5909\u63db\u3059\u308b\u300d\u30dc\u30bf\u30f3\u3092\u62bc\u3059\u3060\u3051\u3067\u3059\u3002\u5909\u63db\u5b8c\u4e86\u5f8c\u306f\u3001\u305d\u306e\u307e\u307e\u7aef\u672b\u3078\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-1\">M4A\u3068WAV\u306e\u57fa\u790e\u77e5\u8b58<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u30c4\u30fc\u30eb\u3067\u6271\u30462\u3064\u306e\u97f3\u58f0\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>M4A\u3068\u306f<\/strong> <br>\u4e3b\u306bApple\u88fd\u54c1\uff08iPhone\u3084Mac\u306a\u3069\uff09\u306e\u30dc\u30a4\u30b9\u30e1\u30e2\u3084\u3001iTunes\u3067\u306e\u97f3\u697d\u914d\u4fe1\u306a\u3069\u3067\u6a19\u6e96\u7684\u306b\u4f7f\u308f\u308c\u3066\u3044\u308b\u97f3\u58f0\u5f62\u5f0f\u3067\u3059\u3002\u30c7\u30fc\u30bf\u3092\u5727\u7e2e\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u304c\u5c0f\u3055\u304f\u6271\u3044\u3084\u3059\u3044\u306e\u304c\u7279\u5fb4\u3067\u3059\u304c\u3001\u4e00\u90e8\u306e\u53e4\u3044\u6a5f\u5668\u3084\u7279\u5b9a\u306eWindows\u30bd\u30d5\u30c8\u3067\u306f\u76f4\u63a5\u518d\u751f\u30fb\u7de8\u96c6\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>WAV\u3068\u306f<\/strong> <br>Windows\u3067\u6a19\u6e96\u7684\u306b\u4f7f\u308f\u308c\u3066\u304d\u305f\u3001\u97f3\u58f0\u3092\u5727\u7e2e\u305b\u305a\u306b\u4fdd\u5b58\u3059\u308b\u5f62\u5f0f\u3067\u3059\u3002\u97f3\u8cea\u304c\u52a3\u5316\u3057\u306a\u3044\u305f\u3081\u3001\u52d5\u753b\u7de8\u96c6\u3084\u97f3\u697d\u5236\u4f5c\u306e\u7d20\u6750\u3068\u3057\u3066\u6700\u3082\u9069\u3057\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u975e\u5727\u7e2e\u3067\u3042\u308b\u305f\u3081\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306fM4A\u3068\u6bd4\u3079\u3066\u5927\u304d\u304f\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-2\">\u3069\u3093\u306a\u3068\u304d\u306b\u5f79\u7acb\u3064\uff1f\u304a\u3059\u3059\u3081\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30c4\u30fc\u30eb\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5834\u9762\u3067\u7279\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>iPhone\u306e\u30dc\u30a4\u30b9\u30e1\u30e2\u3067\u9332\u97f3\u3057\u305f\u97f3\u58f0\u3092\u3001\u30d1\u30bd\u30b3\u30f3\u306e\u52d5\u753b\u7de8\u96c6\u30bd\u30d5\u30c8\u3067\u4f7f\u3044\u305f\u3044\u3068\u304d<\/li>\n\n\n\n<li>M4A\u5f62\u5f0f\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u53e4\u3044\u97f3\u58f0\u518d\u751f\u30d7\u30ec\u30a4\u30e4\u30fc\u3067\u97f3\u6e90\u3092\u518d\u751f\u3057\u305f\u3044\u3068\u304d<\/li>\n\n\n\n<li>\u97f3\u697d\u5236\u4f5c\u30bd\u30d5\u30c8\uff08DAW\uff09\u306b\u97f3\u58f0\u7d20\u6750\u3092\u53d6\u308a\u8fbc\u3080\u305f\u3081\u3001\u975e\u5727\u7e2e\u306eWAV\u5f62\u5f0f\u306b\u623b\u3057\u305f\u3044\u3068\u304d<\/li>\n\n\n\n<li>\u65b0\u3057\u3044\u30bd\u30d5\u30c8\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u305b\u305a\u3001\u4f1a\u793e\u306e\u30d1\u30bd\u30b3\u30f3\u306a\u3069\u3067\u5b89\u5168\u306b\u97f3\u58f0\u5909\u63db\u3092\u884c\u3044\u305f\u3044\u3068\u304d<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-3\">\u672c\u30c4\u30fc\u30eb\u306e\u7279\u5fb4\u30fb\u5b89\u5168\u6027\u306b\u3064\u3044\u3066<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u30c4\u30fc\u30eb\u3067\u884c\u308f\u308c\u308b\u97f3\u58f0\u306e\u5909\u63db\u51e6\u7406\u306f\u3001\u3059\u3079\u3066\u73fe\u5728\u304a\u4f7f\u3044\u306e\u30d6\u30e9\u30a6\u30b6\uff08\u30d1\u30bd\u30b3\u30f3\u3084\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u5185\uff09\u3067\u884c\u308f\u308c\u307e\u3059\u3002\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3057\u305f\u97f3\u58f0\u30d5\u30a1\u30a4\u30eb\u304c\u5916\u90e8\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\u30fb\u4fdd\u5b58\u3055\u308c\u308b\u3053\u3068\u306f\u4e00\u5207\u3042\u308a\u307e\u305b\u3093\u3002\u4f1a\u8b70\u306e\u9332\u97f3\u3084\u500b\u4eba\u7684\u306a\u30dc\u30a4\u30b9\u30e1\u30e2\u306a\u3069\u3001\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u97f3\u58f0\u30c7\u30fc\u30bf\u3067\u3082\u60c5\u5831\u6f0f\u6d29\u306e\u5fc3\u914d\u306a\u304f\u5b89\u5168\u306b\u3054\u5229\u7528\u3044\u305f\u3060\u3051\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-4\">\u3054\u5229\u7528\u6642\u306e\u6ce8\u610f\u70b9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5909\u63db\u5f8c\u306e\u30c7\u30fc\u30bf\u5bb9\u91cf<\/strong> <br>M4A\uff08\u5727\u7e2e\uff09\u304b\u3089WAV\uff08\u975e\u5727\u7e2e\uff09\u3078\u306e\u5909\u63db\u3068\u306a\u308b\u305f\u3081\u3001\u5909\u63db\u5f8c\u306e\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306f\u5143\u306eM4A\u30d5\u30a1\u30a4\u30eb\u3088\u308a\u3082\u5927\u304d\u304f\u306a\u308a\u307e\u3059\u3002\u7aef\u672b\u306e\u7a7a\u304d\u5bb9\u91cf\u306b\u3054\u6ce8\u610f\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306e\u4e0a\u9650<\/strong> <br>\u30d6\u30e9\u30a6\u30b6\u3067\u306e\u51e6\u7406\u3092\u5b89\u5b9a\u3055\u305b\u308b\u305f\u3081\u3001\u4e00\u5ea6\u306b\u5909\u63db\u3067\u304d\u308b\u30d5\u30a1\u30a4\u30eb\u306f1\u3064\u307e\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306f\u6700\u592750MB\u307e\u3067\u3068\u306a\u3063\u3066\u304a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>M4A\u30d5\u30a1\u30a4\u30eb\u3092\u9078\u629e \u3053\u3053\u3078\u30c9\u30e9\u30c3\u30b0\uff06\u30c9\u30ed\u30c3\u30d7\u3001\u307e\u305f\u306f\u30bf\u30c3\u30d7\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002 \u203b1\u30d5\u30a1\u30a4\u30eb\u306e\u307f\u3001\u4e0a\u965050MB\u306eM4A\u30d5\u30a1\u30a4\u30eb \u5143\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba: \u30b9\u30c6\u30fc\u30bf\u30b9: \u6e96\u5099\u5b8c\u4e86 \u3010WAV\u5f62\u5f0f\u306b\u95a2\u3059\u308b\u3054\u6ce8\u610f\u3011 WA &#8230; 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