{"id":416652,"date":"2023-11-15T09:00:00","date_gmt":"2023-11-15T17:00:00","guid":{"rendered":"https:\/\/blog.webex.com\/uncategorized-ja\/hd-voice%ef%bc%9aai-%e3%82%92%e6%b4%bb%e7%94%a8%e3%81%97%e3%81%a6%e9%9d%9e%e5%b8%b8%e3%81%ab%e3%82%af%e3%83%aa%e3%82%a2%e3%81%aa%e9%9f%b3%e5%a3%b0%e3%82%92%e5%ae%9f%e7%8f%be\/"},"modified":"2024-02-14T22:33:08","modified_gmt":"2024-02-15T06:33:08","slug":"ai-powered-crystal-clear-hd-voice-audio","status":"publish","type":"post","link":"https:\/\/blog.webex.com\/ja\/collaboration\/ai-powered-crystal-clear-hd-voice-audio\/","title":{"rendered":"HD Voice\uff1aAI \u3092\u6d3b\u7528\u3057\u3066\u975e\u5e38\u306b\u30af\u30ea\u30a2\u306a\u97f3\u58f0\u3092\u5b9f\u73fe"},"content":{"rendered":"\n<p>\u30ab\u30ea\u30d5\u30a9\u30eb\u30cb\u30a2\u5dde\u30a2\u30ca\u30cf\u30a4\u30e0\u3067\u958b\u50ac\u3055\u308c\u305f <a href=\"https:\/\/www.webexone.com\/\" target=\"_blank\" rel=\"noopener\" title=\"WebexOne23\">WebexOne 2023<\/a> \u3067\u306f\u3001\u80cc\u666f\u96d1\u97f3\u3092\u9664\u53bb\u3057\u3066\u72ed\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u3092\u5e83\u5e2f\u57df\u306b\u5909\u63db\u3059\u308b AI \u642d\u8f09\u306e\u6280\u8853\u3001HD Voice \u304c\u767a\u8868\u3055\u308c\u307e\u3057\u305f\u3002 \u3053\u308c\u306b\u3088\u308a\u516c\u8846\u96fb\u8a71\u4ea4\u63db\u7db2\uff08PSTN\uff09\u3067\u901a\u8a71\u3092\u53d7\u3051\u308b\u969b\u306e\u97f3\u58f0\u54c1\u8cea\u3068\u97f3\u58f0\u660e\u77ad\u5ea6\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002 \u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001HD Voice \u306b\u3088\u3063\u3066\u89e3\u6c7a\u3067\u304d\u308b\u554f\u984c\u3001HD Voice \u306e\u6a5f\u80fd\u3001\u304a\u5ba2\u69d8\u306e\u30e1\u30ea\u30c3\u30c8\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u72ed\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u306e\u554f\u984c<\/h2>\n\n\n\n<p>\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3092\u4f7f\u7528\u3057\u3066\u8fd1\u6240\u306e\u30d4\u30b6\u5c4b\u3084\u53cb\u4eba\u3001\u5bb6\u65cf\u306b\u96fb\u8a71\u3092\u304b\u3051\u308b\u3068\u304d\u3001\u304a\u305d\u3089\u304f PSTN \u3092\u4f7f\u3063\u3066\u901a\u8a71\u3057\u3066\u3044\u308b\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002 PSTN \u901a\u8a71\u306f\u3001\u4e3b\u306b\u72ed\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u304c\u57fa\u672c\u3068\u306a\u308a\u307e\u3059\u3002\u72ed\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u3068\u306f\u3001\u97f3\u58f0\u5468\u6ce2\u6570\u30b9\u30da\u30af\u30c8\u30eb\u306e\u4f4e\u5468\u6ce2\u57df\uff08\u3064\u307e\u308a\u3001\u6700\u5927 4 kHz\uff09\u306e\u307f\u3092\u4fdd\u6301\u3059\u308b\u4fe1\u53f7\u51e6\u7406\u306b\u306a\u308a\u307e\u3059\u3002 \u7279\u5b9a\u306e\u5b50\u97f3\u3092\u533a\u5225\u3059\u308b\u305f\u3081\u306e\u624b\u304c\u304b\u308a\uff08<a href=\"https:\/\/pub.dega-akustik.de\/DAGA_2015\/data\/articles\/000187.pdf\" target=\"_blank\" rel=\"noopener\" title=\"\u30ea\u30f3\u30af\">\u8cc7\u6599<\/a>\uff09\u304c\u542b\u307e\u308c\u308b\u9ad8\u5468\u6ce2\u57df\uff08\u3059\u306a\u308f\u3061 4 \uff5e 20 kHz\uff09\u306b\u306f\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u305b\u3093\u3002 \u305d\u306e\u7d50\u679c\u3001\u72ed\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\uff08\u304a\u3088\u3073\u80cc\u666f\u96d1\u97f3\uff09\u3067\u306f\u97f3\u7d20\u306e\u6df7\u4e71\u304c\u767a\u751f\u3057\u3001\u97f3\u58f0\u660e\u77ad\u5ea6\u3084\u97f3\u8cea\u304c\u4f4e\u4e0b\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002 \u305d\u308c\u306b\u5bfe\u3057\u3066\u5e83\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u3067\u306f\u30018kHz \u307e\u3067\u306e\u97f3\u58f0\u30b9\u30da\u30af\u30c8\u30eb\u3092\u4fdd\u6301\u3057\u307e\u3059\u3002\u4e00\u822c\u7684\u306b\u72ed\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u3068\u6bd4\u8f03\u3057\u3066\u3001\u97f3\u58f0\u660e\u77ad\u5ea6\uff08<a href=\"https:\/\/ieeexplore.ieee.org\/document\/7021110\" target=\"_blank\" rel=\"noopener\" title=\"\u30ea\u30f3\u30af1\">\u8cc7\u65991<\/a>\u3001<a href=\"https:\/\/pub.dega-akustik.de\/DAGA_2015\/data\/articles\/000187.pdf\" target=\"_blank\" rel=\"noopener\" title=\"\u30ea\u30f3\u30af2\">\u8cc7\u65992<\/a>\uff09\u3084\u3001<a href=\"https:\/\/dl.acm.org\/doi\/10.1145\/3479160\" target=\"_blank\" rel=\"noopener\" title=\"\u8074\u899a\u969c\u5bb3\u3092\u62b1\u3048\u308b\u4eba\">\u8074\u899a\u969c\u5bb3\u3092\u62b1\u3048\u308b\u4eba<\/a>\u3078\u306e\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u304c\u5411\u4e0a\u3059\u308b\u306a\u3069\u306e\u5229\u70b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u554f\u984c\u3092\u3055\u3089\u306b\u6df1\u304f\u6398\u308a\u4e0b\u3052\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u97f3\u58f0\u304c\u72ed\u5e2f\u57df\u304a\u3088\u3073\u5e83\u5e2f\u57df\u306e\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u901a\u904e\u3059\u308b\u3068\u304d\u306b\u4f55\u304c\u8d77\u3053\u308b\u304b\u306b\u6ce8\u76ee\u3057\u3066\u307f\u307e\u3059\u3002 \u5206\u304b\u308a\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u306b\u3001\u72ed\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u3068\u5e83\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u306e\u4e21\u65b9\u306b\u30de\u30a4\u30ca\u30b9\u306b\u50cd\u304f\u80cc\u666f\u96d1\u97f3\u306e\u5f71\u97ff\u306b\u3064\u3044\u3066\u306f\u3053\u3053\u3067\u306f\u8003\u616e\u3057\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/blog.webex.com\/wp-content\/uploads\/2023\/12\/spectogram-of-unprocessed-speech-snippet-sampled-at-47khz.png\"><img loading=\"lazy\" decoding=\"async\" width=\"980\" height=\"299\" src=\"https:\/\/blog.webex.com\/wp-content\/uploads\/2023\/12\/spectogram-of-unprocessed-speech-snippet-sampled-at-47khz.png\" alt=\"\" class=\"wp-image-416654\" srcset=\"https:\/\/blog.webex.com\/wp-content\/uploads\/2023\/12\/spectogram-of-unprocessed-speech-snippet-sampled-at-47khz.png 980w, https:\/\/blog.webex.com\/wp-content\/uploads\/2023\/12\/spectogram-of-unprocessed-speech-snippet-sampled-at-47khz-300x92.png 300w, https:\/\/blog.webex.com\/wp-content\/uploads\/2023\/12\/spectogram-of-unprocessed-speech-snippet-sampled-at-47khz-768x234.png 768w\" sizes=\"auto, (max-width: 980px) 100vw, 980px\" \/><\/a><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>\u56f3 1 \u306f\u3001<a href=\"https:\/\/salford.figshare.com\/articles\/media\/Speech_corpus_-_Harvard_-_raw_audio\/7862666\" target=\"_blank\" rel=\"noopener\" title=\"48 kHz\u3067\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\">48 kHz \u3067\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u3055\u308c\u305f<\/a>\u672a\u51e6\u7406\u306e\u97f3\u58f0\u30b9\u30cb\u30da\u30c3\u30c8\u306e\u30b9\u30da\u30af\u30c8\u30ed\u30b0\u30e9\u30e0\u3067\u3059\u3002 \u3053\u308c\u304c\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u901a\u904e\u3059\u308b\u97f3\u58f0\u4fe1\u53f7\u3068\u3057\u307e\u3059\u3002 \u97f3\u58f0\u30b9\u30cb\u30da\u30c3\u30c8\u304c\u30b9\u30da\u30af\u30c8\u30eb\u5168\u4f53\u3067\u5468\u6ce2\u6570\u6210\u5206\u3092\u793a\u3057\u3066\u3044\u308b\u306e\u306b\u6ce8\u76ee\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>\u97f3\u58f0\u304c\u72ed\u5e2f\u57df\u30b3\u30fc\u30c7\u30c3\u30af\uff08\u305f\u3068\u3048\u3070 G.711 \u30b3\u30fc\u30c7\u30c3\u30af\u306b\u57fa\u3065\u304f PSTN \u901a\u8a71\uff09\u3092\u901a\u904e\u3059\u308b\u3068\u3001\u305d\u306e\u7d50\u679c\u5f97\u3089\u308c\u308b\u4fe1\u53f7\u3067\u306f\u3001\u5143\u306e\u5468\u6ce2\u6570\u30b9\u30da\u30af\u30c8\u30eb\u306e\u307b\u3068\u3093\u3069\u3092\u5931\u3063\u3066\u3044\u307e\u3059\uff08\u56f3 2\uff09\u3002<\/p>\n\n\n\n<p>\u305d\u308c\u306b\u5bfe\u3057\u3066\u56f3 1 \u306e\u4fe1\u53f7\u304c\u5e83\u5e2f\u57df\u30b7\u30b9\u30c6\u30e0\u3067\u51e6\u7406\u3055\u308c\u308b\u3068\u3001\u56f3 3 \u306e\u3088\u3046\u306a\u30b9\u30da\u30af\u30c8\u30eb\u306b\u306a\u308a\u307e\u3059\u3002 \u5e83\u5e2f\u57df\u4fe1\u53f7\u306e\u307b\u3046\u304c\u3001\u56f3 2 \u306e\u72ed\u5e2f\u57df\u4fe1\u53f7\u3088\u308a\u3082\u56f3 1 \u306e\u30aa\u30ea\u30b8\u30ca\u30eb\u306b\u300c\u3069\u308c\u307b\u3069\u4f3c\u3066\u3044\u308b\u304b\u300d\u306b\u6ce8\u76ee\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>3 \u3064\u306e\u30af\u30ea\u30c3\u30d7\uff08\u30aa\u30ea\u30b8\u30ca\u30eb\u3068\u51e6\u7406\u5f8c\u306e\u30af\u30ea\u30c3\u30d7\uff09\u3092\u805e\u304d\u6bd4\u3079\u3066\u307f\u308b\u3068\u3001\u5e83\u5e2f\u57df\u30af\u30ea\u30c3\u30d7\u306e\u97f3\u8cea\u306f\u72ed\u5e2f\u57df\u30af\u30ea\u30c3\u30d7\u3088\u308a\u3082\u306f\u308b\u304b\u306b\u512a\u308c\u3066\u3044\u308b\u306e\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u72ed\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u3068\u5e83\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\uff1a\u300c\u8996\u899a\u7684\u306a\u300d\u4f8b<\/h2>\n\n\n\n<p>\u72ed\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u3068\u5e83\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u306e\u95a2\u4fc2\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u300c\u8996\u899a\u7684\u306a\u300d\u4f8b\u3067\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3061\u3087\u3063\u3068\u60f3\u50cf\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u4eca\u306f 1958 \u5e74\u3067\u3001\u3042\u306a\u305f\u306f\u30c6\u30ec\u30d3\u3092\u898b\u3066\u3044\u307e\u3059\u3002<a href=\"https:\/\/youtu.be\/IYUm9D4lvpM?si=RF4oOWGEZe8iEwzV&amp;t=881\" target=\"_blank\" rel=\"noopener\" title=\"NBC \u306e\u30ed\u30d0\u30fc\u30c8\u30fb\u30b5\u30fc\u30ce\u30d5\u793e\u9577\u304c\u30a2\u30a4\u30bc\u30f3\u30cf\u30ef\u30fc\u5927\u7d71\u9818\u3092\u7d39\u4ecb\">NBC \u306e\u30ed\u30d0\u30fc\u30c8\u30fb\u30b5\u30fc\u30ce\u30d5\u793e\u9577\u304c\u30a2\u30a4\u30bc\u30f3\u30cf\u30ef\u30fc\u5927\u7d71\u9818\u3092\u7d39\u4ecb<\/a>\u3057\u3066\u3044\u307e\u3059\u3002\u5927\u7d71\u9818\u306f\u56fd\u6c11\u306b\u5bfe\u3057\u3066\u6f14\u8aac\u3092\u59cb\u3081\u308b\u4e88\u5b9a\u3067\u3059\u3002 \u30c6\u30ec\u30d3\u756a\u7d44\u306f\u767d\u9ed2\uff08B&amp;W\uff09\u3067\u3059\u3002 \u30b5\u30fc\u30ce\u30d5\u304c\u30dc\u30bf\u30f3\u3092\u62bc\u3059\u3068\u3001\u7a81\u7136\u3001\u753b\u9762\u304c\u30ab\u30e9\u30fc\u6620\u50cf\u306b\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div>\n<video class=\"ec-video\" loop=\"\" autoplay=\"\" muted=\"\" playsinline=\"\">\n  <source src=\"https:\/\/blog.webex.com\/wp-content\/uploads\/2023\/11\/first-color-broadcast-final.mp4\" type=\"video\/mp4\">\n \u304a\u4f7f\u3044\u306e\u30d6\u30e9\u30a6\u30b6\u3067\u306f\u30d3\u30c7\u30aa\u3092\u518d\u751f\u3067\u304d\u307e\u305b\u3093\u3002\n<\/source><\/video>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p>\u767d\u9ed2\u30c6\u30ec\u30d3\u304b\u3089\u30ab\u30e9\u30fc\u30c6\u30ec\u30d3\u306b\u5207\u308a\u66ff\u308f\u308b\u3068\u3044\u3046\u3001\u30c6\u30ec\u30d3\u653e\u9001\u306e\u3082\u3063\u3068\u3082\u6c7a\u5b9a\u7684\u306a\u77ac\u9593\u3067\u3059\u3002 \u305d\u306e\u5f8c\u540c\u69d8\u306e\u51fa\u6765\u4e8b\u304c\u4e16\u754c\u4e2d\u3067\u8d77\u3053\u308a\u307e\u3057\u305f\u30021975 \u5e74\u306e\u30aa\u30fc\u30b9\u30c8\u30e9\u30ea\u30a2\uff08<a href=\"https:\/\/www.youtube.com\/watch?v=SctrJq6vC8c\" target=\"_blank\" rel=\"noopener\" title=\"\u30d3\u30c7\u30aa\">\u30d3\u30c7\u30aa<\/a>\uff09\u30011982 \u5e74\u306e\u30a4\u30f3\u30c9\uff08<a href=\"https:\/\/youtu.be\/koP2RINsKfc?si=DpDEheF5WpB1PL2r\" target=\"_blank\" rel=\"noopener\" title=\"\u30d3\u30c7\u30aa\">\u30d3\u30c7\u30aa<\/a>\uff09\u30011972 \u5e74\u306e\u30ce\u30eb\u30a6\u30a7\u30fc\uff08<a href=\"https:\/\/www.youtube.com\/watch?v=adg38dK7TDk\" target=\"_blank\" rel=\"noopener\" title=\"\u30d3\u30c7\u30aa\">\u30d3\u30c7\u30aa<\/a>\uff09\u306a\u3069\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u5207\u308a\u66ff\u308f\u308a\u304c\u4e0e\u3048\u305f\u5f71\u97ff\u306b\u3064\u3044\u3066\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u307e\u305a\u60c5\u5831\u3092\u4f1d\u3048\u308b\u3068\u3044\u3046\u70b9\u3067\u3001\u767d\u9ed2\u30c6\u30ec\u30d3\u653e\u9001\u306f\u305d\u306e\u76ee\u7684\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u3002 \u305f\u3068\u3048\u3070\u30d7\u30ec\u30bc\u30f3\u30bf\u30fc\u3068\u305d\u306e\u5468\u56f2\u3092\u898b\u308c\u3070\u3001\u5834\u9762\u3092\u8996\u899a\u7684\u306b\u628a\u63e1\u3067\u304d\u307e\u3059\u3002 \u305f\u3060\u3057\u3001\u30d7\u30ec\u30bc\u30f3\u30bf\u30fc\u306e\u30b8\u30e3\u30b1\u30c3\u30c8\u306e\u8272\u3084\u80cc\u666f\u306e\u8272\u306f\u308f\u304b\u308a\u307e\u305b\u3093\u3002 \u4e00\u65b9\u3001\u30ab\u30e9\u30fc\u6620\u50cf\u306f\u3088\u308a\u30ea\u30a2\u30eb\u3067\u89aa\u8fd1\u611f\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u3053\u3067\u8cea\u554f\u3067\u3059\u3002\u30ab\u30e9\u30fc\u306e\u6620\u50cf\u3092\u898b\u305f\u5f8c\u3067\u767d\u9ed2\u306e\u6620\u50cf\u306b\u623b\u308a\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u304b\u3002 \u304a\u305d\u3089\u304f\u305d\u3046\u306f\u601d\u308f\u306a\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u78ba\u304b\u306b\u3001\u767d\u9ed2\u30c6\u30ec\u30d3\u306b\u3082\u72ec\u7279\u306e\u9b45\u529b\u304c\u3042\u308a\u307e\u3059\u3002 \u3057\u304b\u3057\u30c6\u30ec\u30d3\u306e\u751f\u4e2d\u7d99\u3068\u306a\u308b\u3068\u3001\u30ab\u30e9\u30fc\u6620\u50cf\u306e\u307b\u3046\u304c\u512a\u308c\u3066\u3044\u307e\u3059\u3002 \u79d1\u5b66\u7684\u306a\u7814\u7a76\u3082\u3053\u308c\u3092\u88cf\u4ed8\u3051\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u30ab\u30e9\u30fc\u6620\u50cf\u306f\uff08\u767d\u9ed2\u6620\u50cf\u3068\u6bd4\u8f03\u3057\u3066\uff09\u8a18\u61b6\u3084\u30d6\u30e9\u30f3\u30c9\u306e\u9023\u60f3\u306b\u30d7\u30e9\u30b9\u306e\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u3068\u304c\u660e\u3089\u304b\u306b\u306a\u3063\u3066\u3044\u307e\u3059\uff08<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC3743993\/\" target=\"_blank\" rel=\"noopener\" title=\"\u30ea\u30f3\u30af\">\u8cc7\u6599<\/a>\uff09\u3002 \u4eca\u3067\u306f\u3059\u3079\u3066\u306e\u653e\u9001\u5c40\u304c\u30ab\u30e9\u30fc\u6620\u50cf\u3067\u756a\u7d44\u3092\u5236\u4f5c\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u8996\u899a\u7684\u306a\u4f8b\u3068\u540c\u69d8\u306b\u3001\u72ed\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u3082\uff08\u767d\u9ed2\u30c6\u30ec\u30d3\u306e\u3088\u3046\u306b\uff09\u60c5\u5831\u3092\u4f1d\u3048\u308b\u3060\u3051\u306a\u3089\u5341\u5206\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u5468\u6ce2\u6570\u30b9\u30da\u30af\u30c8\u30eb\u304c\u300c\u30ab\u30c3\u30c8\u300d\u3055\u308c\u3066\u3057\u307e\u3046\u305f\u3081\u3001\u51e6\u7406\u3055\u308c\u305f\u97f3\u58f0\u306e\u5185\u5bb9\u306f\u7406\u89e3\u3057\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002 \u4e00\u65b9\u3001\u5e83\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u306f\uff08\u30ab\u30e9\u30fc\u30c6\u30ec\u30d3\u306e\u3088\u3046\u306b\uff09\u30b9\u30da\u30af\u30c8\u30eb\u306e\u5927\u90e8\u5206\u304c\u4fdd\u6301\u3055\u308c\u308b\u305f\u3081\u3001\u805e\u3053\u3048\u3066\u304f\u308b\u97f3\u58f0\u306f\u79c1\u305f\u3061\u304c\u5b9f\u751f\u6d3b\u3067\u7d4c\u9a13\u3059\u308b\u3082\u306e\u306b\u300c\u3088\u308a\u8fd1\u304f\u300d\u306a\u308a\u3001\u8a71\u3055\u308c\u3066\u3044\u308b\u5185\u5bb9\u3092\u7406\u89e3\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b7\u30b9\u30b3\u306e HD Voice\uff1aAI \u3092\u6d3b\u7528\u3057\u3066\u72ed\u5e2f\u57df\u901a\u4fe1\u306b\u300c\u30ab\u30e9\u30fc\u300d\u3092\u3088\u307f\u304c\u3048\u3089\u305b\u308b<\/h2>\n\n\n\n<p>\u97f3\u58f0\u901a\u4fe1\u306e\u5834\u5408\u300180 \u5e74\u4ee3\u5f8c\u534a\u306b\u56fd\u969b\u96fb\u6c17\u901a\u4fe1\u9023\u5408\u306b\u3088\u3063\u3066 G.722 \u30ef\u30a4\u30c9\u30d0\u30f3\u30c9\u30b3\u30fc\u30c7\u30c3\u30af\u304c\u6a19\u6e96\u5316\u3055\u308c\u305f\u3068\u304d\u3001\u72ed\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u304b\u3089\u5e83\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u306b\u4e00\u6c17\u306b\u5207\u308a\u66ff\u308f\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002 \u73fe\u5728\u3001PSTN \u901a\u8a71\u306e\u5927\u90e8\u5206\u306f\u72ed\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002 \u97f3\u8cea\u304c\u826f\u304f\u306a\u3044\u3068\u308f\u304b\u3063\u3066\u3044\u3066\u3082\u3001\u3069\u3046\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u305b\u3093\u3002 \u3057\u304b\u3057\u4eca\u5f8c\u306f\u9055\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u72ed\u5e2f\u57df\u3092\u4f7f\u7528\u3057\u305f\u901a\u8a71\u306e\u54c1\u8cea\u5411\u4e0a\u306e\u305f\u3081\u3001\u30b7\u30b9\u30b3\u306f AI \u30d9\u30fc\u30b9\u306e\u97f3\u58f0\u51e6\u7406\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u3067\u3042\u308b HD Voice \u3092\u958b\u767a\u3057\u307e\u3057\u305f\u3002HD Voice \u3067\u306f\u4ee5\u4e0b\u3092\u540c\u6642\u306b\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u80cc\u666f\u30ce\u30a4\u30ba\u306e\u9664\u53bb<\/li>\n\n\n\n<li>\u72ed\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u3092\u5e83\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u306b\u5909\u63db<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u306b\u3088\u308a\u3001PSTN \u901a\u8a71\u306e\u53d7\u4fe1\u6642\u306e\u97f3\u8cea\u3068\u97f3\u58f0\u660e\u77ad\u5ea6\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3044\u308f\u3070 HD Voice \u306f\u3001NBC \u306e\u30ed\u30d0\u30fc\u30c8\u30fb\u30b5\u30fc\u30ce\u30d5\u793e\u9577\u304c\u767d\u9ed2\u30c6\u30ec\u30d3\u304b\u3089\u30ab\u30e9\u30fc\u30c6\u30ec\u30d3\u306b\u5207\u308a\u66ff\u3048\u308b\u305f\u3081\u306b\u4f7f\u7528\u3057\u305f\u30b9\u30a4\u30c3\u30c1\u306e\u3088\u3046\u306a\u3001\u72ed\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u3092\u5e83\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u306b\u5909\u63db\u3059\u308b\u300c\u30b9\u30a4\u30c3\u30c1\u300d\u3068\u3044\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"HD Voice: Crystal clear audio powered by AI\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/bYv55x6VMUo?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>HD Voice \u306f\u72ed\u5e2f\u57df\u97f3\u58f0\uff08G.711 \u306a\u3069\uff09\u3092\u5165\u529b\u3068\u3057\u3066\u53d7\u3051\u53d6\u308a\u3001AI \u3092\u4f7f\u7528\u3057\u3066\u80cc\u666f\u96d1\u97f3\u3092\u9664\u53bb\u3057\u3001\u72ed\u5e2f\u57df\u51e6\u7406\u306e\u969b\u306b\u5931\u308f\u308c\u305f\u97f3\u58f0\u30b9\u30da\u30af\u30c8\u30eb\u306e\u9ad8\u5468\u6ce2\u90e8\u5206\u3092\u518d\u69cb\u7bc9\u3057\u307e\u3059\uff08\u56f3 5 \u306e\u30b9\u30da\u30af\u30c8\u30ed\u30b0\u30e9\u30e0 1 \u3092\u53c2\u7167\uff09\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/blog.webex.com\/wp-content\/uploads\/2023\/12\/narrowband-signal-converted-to-clear-wideband-audio-with-hd-voice.png\"><img loading=\"lazy\" decoding=\"async\" width=\"980\" height=\"160\" src=\"https:\/\/blog.webex.com\/wp-content\/uploads\/2023\/12\/narrowband-signal-converted-to-clear-wideband-audio-with-hd-voice.png\" alt=\"\" class=\"wp-image-416665\" srcset=\"https:\/\/blog.webex.com\/wp-content\/uploads\/2023\/12\/narrowband-signal-converted-to-clear-wideband-audio-with-hd-voice.png 980w, https:\/\/blog.webex.com\/wp-content\/uploads\/2023\/12\/narrowband-signal-converted-to-clear-wideband-audio-with-hd-voice-300x49.png 300w, https:\/\/blog.webex.com\/wp-content\/uploads\/2023\/12\/narrowband-signal-converted-to-clear-wideband-audio-with-hd-voice-768x125.png 768w\" sizes=\"auto, (max-width: 980px) 100vw, 980px\" \/><\/a><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>\u56f3 5\uff1aHD Voice \u3067\u30af\u30ea\u30a2\u306a\u5e83\u5e2f\u57df\u30aa\u30fc\u30c7\u30a3\u30aa\u306b\u5909\u63db\u3055\u308c\u305f\u72ed\u5e2f\u57df\u4fe1\u53f7<\/p>\n\n\n\n<p>\u3053\u3046\u3057\u3066\u3001HD Voice \u304b\u3089\u306e\u51fa\u529b\u306f\u3001\u518d\u69cb\u7bc9\u3055\u308c\u305f\u30b9\u30da\u30af\u30c8\u30eb\u3092\u542b\u3080\u30ce\u30a4\u30ba\u306e\u306a\u3044\u5e83\u5e2f\u57df\u4fe1\u53f7\u3068\u306a\u308a\u307e\u3059\uff08\u56f3 5 \u306e\u30b9\u30da\u30af\u30c8\u30ed\u30b0\u30e9\u30e0 2 \u3092\u53c2\u7167\uff09\u3002 \u30aa\u30ea\u30b8\u30ca\u30eb\uff08\u30b9\u30da\u30af\u30c8\u30ed\u30b0\u30e9\u30e0 1\uff09\u3068\u6bd4\u3079\u3066\u3001HD Voice \u306e\u97f3\u58f0\uff08\u30b9\u30da\u30af\u30c8\u30ed\u30b0\u30e9\u30e0 2\uff09\u306e\u307b\u3046\u304c\u3088\u308a\u30af\u30ea\u30a2\u306b\u805e\u3053\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<p>HD Voice \u306e\u76ee\u7684\u306f\u3001\u97f3\u97ff\u5fc3\u7406\u5b66\u306e\u539f\u7406\u3068 AI \u306e\u529b\u3092\u6d3b\u7528\u3057\u3001\u30aa\u30ea\u30b8\u30ca\u30eb\u306e\u72ed\u5e2f\u57df\u97f3\u58f0\u306e\u9ad8\u5468\u6ce2\u90e8\u5206\u3092\u526f\u6b21\u7684\u306a\u60c5\u5831\u306a\u3057\u3067\u81ea\u52d5\u7684\u306b\u518d\u69cb\u7bc9\u3059\u308b\u3053\u3068\u3067\u3059\u3002 HD Voice \u306f\u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30d0\u30a4\u30b9\u4e0a\u3067\u30ed\u30fc\u30ab\u30eb\u306b\u52d5\u4f5c\u3055\u305b\u305f\u308a\u3001\u30af\u30e9\u30a6\u30c9\u4e0a\u3067\u52d5\u4f5c\u3055\u305b\u305f\u308a\u3067\u304d\u307e\u3059\u3002 HD Voice \u30cb\u30e5\u30fc\u30e9\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u30c7\u30fc\u30bf\u304c\u4f7f\u7528\u3055\u308c\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002 \u3053\u306e\u305f\u3081\u3001HD Voice \u3067\u306f\u7279\u5b9a\u4eba\u7269\u306e\u97f3\u58f0\u306e\u9ad8\u5468\u6ce2\u306f\u518d\u69cb\u7bc9\u3055\u308c\u307e\u305b\u3093\u3002 HD Voice \u306f AI \u30d9\u30fc\u30b9\u306e\u30a4\u30ce\u30d9\u30fc\u30b7\u30e7\u30f3\u3068\u3057\u3066\u3001\u900f\u660e\u6027\u3001\u516c\u5e73\u6027\u3001\u8aac\u660e\u8cac\u4efb\u3001\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3001\u4fe1\u983c\u6027\u3092\u542b\u3080<a href=\"https:\/\/blogs.cisco.com\/security\/our-responsible-approach-to-governing-artificial-intelligence\" target=\"_blank\" rel=\"noopener\" title=\"\u30b7\u30b9\u30b3\u306e\u8cac\u4efb\u3042\u308b AI \u306e\u539f\u5247\">\u30b7\u30b9\u30b3\u306e\u8cac\u4efb\u3042\u308b AI \u306e\u539f\u5247<\/a>\u3092\u5e38\u306b\u9075\u5b88\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Webex \u306e\u304a\u5ba2\u69d8\u306b\u3068\u3063\u3066\u306e\u30e1\u30ea\u30c3\u30c8<\/h2>\n\n\n\n<p>\u30b7\u30b9\u30b3\u306f\u3001Webex 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href=\"https:\/\/www.webex.com\/downloads.html\" target=\"_blank\" rel=\"noopener\" title=\"Webex App\">pp<\/a> \u306e\u30d9\u30fc\u30bf\u7248\u3067 HD Voice \u3092\u3044\u3061\u65e9\u304f\u5229\u7528\u3067\u304d\u307e\u3059\u3002 \u305d\u306e\u4ed6\u306e <a href=\"https:\/\/www.webex.com\/ja\/collaboration-suite.html\" target=\"_blank\" rel=\"noopener\" title=\"Webex Suite\">Webex Suite<\/a> \u306e\u304a\u5ba2\u69d8\u306b\u306f\u3001HD Voice \u306e\u63d0\u4f9b\u306b\u3064\u3044\u3066 2024 \u5e74\u306b\u8a73\u7d30\u3092\u767a\u8868\u3059\u308b\u4e88\u5b9a\u3067\u3059\u3002<\/p>\n\n\n\n<p><strong>\u95a2\u9023\u8cc7\u6599\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.webex.com\/content\/dam\/www\/ja\/jp\/documents\/pdf\/hd-voice-at-a-glance-cm-6232.pdf\" target=\"_blank\" rel=\"noopener\" title=\"HD Voice \u306e At-a-Glance\">HD Voice \u306e At-a-Glance<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.webex.com\/products\/collaboration-ai.html\" target=\"_blank\" rel=\"noopener\" title=\"Webex \u30b3\u30e9\u30dc\u30ec\u30fc\u30b7\u30e7\u30f3\u306e AI \u30dd\u30fc\u30c8\u30d5\u30a9\u30ea\u30aa\">Webex \u30b3\u30e9\u30dc\u30ec\u30fc\u30b7\u30e7\u30f3\u306e AI \u30dd\u30fc\u30c8\u30d5\u30a9\u30ea\u30aa<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.webex.com\/ja\/enterprise-cloud-calling.html\" target=\"_blank\" rel=\"noopener\" title=\"Webex Calling\">Webex Calling<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.cisco.com\/c\/dam\/en_us\/about\/doing_business\/trust-center\/docs\/cisco-responsible-artificial-intelligence-framework.pdf?CCID=cc000742&amp;DTID=odicdc000016\" target=\"_blank\" rel=\"noopener\" title=\"\u30b7\u30b9\u30b3\u306e\u8cac\u4efb\u3042\u308b AI \u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\">\u30b7\u30b9\u30b3\u306e\u8cac\u4efb\u3042\u308b AI \u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.cisco.com\/c\/dam\/en_us\/about\/doing_business\/trust-center\/docs\/cisco-responsible-artificial-intelligence-principles.pdf?CCID=cc000742&amp;DTID=odicdc000016&amp;OID=rptsc023525%22%20h%20%20HYPERLINK%20%22https:\/\/www.cisco.com\/c\/dam\/en_us\/about\/doing_business\/trust-center\/docs\/cisco-responsible-artificial-intelligence-principles.pdf?CCID=cc000742&amp;DTID=odicdc000016&amp;OID=rptsc023525\" target=\"_blank\" rel=\"noopener\" title=\"\u30b7\u30b9\u30b3\u306e\u8cac\u4efb\u3042\u308b\u4eba\u5de5\u77e5\u80fd\u306b\u95a2\u3059\u308b\u539f\u5247\">\u30b7\u30b9\u30b3\u306e\u8cac\u4efb\u3042\u308b\u4eba\u5de5\u77e5\u80fd\u306b\u95a2\u3059\u308b\u539f\u5247<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u30ab\u30ea\u30d5\u30a9\u30eb\u30cb\u30a2\u5dde\u30a2\u30ca\u30cf\u30a4\u30e0\u3067\u958b\u50ac\u3055\u308c\u305f  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