{"id":284900,"date":"2026-01-28T08:17:44","date_gmt":"2026-01-28T08:17:44","guid":{"rendered":"https:\/\/design.crysound.com\/a2dp-e3-81-ae-e5-9f-ba-e7-a4-8e-e3-81-8b-e3-82-89cry578-e3-82-92-e7-94-a8-e3-81-84-e3-81-9fbluetooth-e3-82-aa-e3-83-bc-e3-83-87-e3-82-a3-e3-82-aa-e3-83-86-e3-82-b9-e3-83-88-e3-81-be-e3-81-a7\/"},"modified":"2026-08-14T04:43:06","modified_gmt":"2026-08-14T04:43:06","slug":"a2dp-e3-81-ae-e5-9f-ba-e7-a4-8e-e3-81-8b-e3-82-89cry578-e3-82-92-e7-94-a8-e3-81-84-e3-81-9fbluetooth-e3-82-aa-e3-83-bc-e3-83-87-e3-82-a3-e3-82-aa-e3-83-86-e3-82-b9-e3-83-88-e3-81-be-e3-81-a7","status":"publish","type":"post","link":"https:\/\/design.crysound.com\/ja\/a2dp-e3-81-ae-e5-9f-ba-e7-a4-8e-e3-81-8b-e3-82-89cry578-e3-82-92-e7-94-a8-e3-81-84-e3-81-9fbluetooth-e3-82-aa-e3-83-bc-e3-83-87-e3-82-a3-e3-82-aa-e3-83-86-e3-82-b9-e3-83-88-e3-81-be-e3-81-a7\/","title":{"rendered":"A2DP\u306e\u57fa\u790e\u304b\u3089CRY578\u3092\u7528\u3044\u305fBluetooth\u30aa\u30fc\u30c7\u30a3\u30aa\u30c6\u30b9\u30c8\u307e\u3067"},"content":{"rendered":"\n<p>A2DP(Advanced Audio Distribution Profile)\u306f\u3001\u9ad8\u97f3\u8cea\u30aa\u30fc\u30c7\u30a3\u30aa\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u306e\u305f\u3081\u306e\u30af\u30e9\u30b7\u30c3\u30afBluetooth\u306e\u4e2d\u6838\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3067\u3059. \u672c\u8a18\u4e8b\u3067\u306f\u3001A2DP\u304c\u3069\u306e\u3088\u3046\u306b\u97f3\u697d\u3092\u4f1d\u9001\u3059\u308b\u304b\u3092\u6982\u8aac\u3057\u3001Bluetooth\u30d7\u30ed\u30c8\u30b3\u30eb\u30b9\u30bf\u30c3\u30af\u306b\u304a\u3051\u308b\u4f4d\u7f6e\u4ed8\u3051\u3092\u8aac\u660e\u3059\u308b\u3068\u3068\u3082\u306b\u3001CRY578 Bluetooth LE Audio Interface\u3092\u7528\u3044\u305f\u5b9f\u8df5\u7684\u306aA2DP\u30c6\u30b9\u30c8\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u3092\u7d39\u4ecb\u3057\u307e\u3059.<\/p>\n\n<h2 class=\"wp-block-heading\"><strong>A2DP\u306f\u3069\u306e\u3088\u3046\u306b\u97f3\u697d\u3092\u4f1d\u9001\u3059\u308b\u306e\u304b?<\/strong><\/h2>\n\n<p>A2DP\u306f\u3001\u9ad8\u97f3\u8cea\u30aa\u30fc\u30c7\u30a3\u30aa\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u4e00\u65b9\u5411\u306b\u4f1d\u9001\u3059\u308b\u305f\u3081\u306e\u30af\u30e9\u30b7\u30c3\u30afBluetooth\u306b\u304a\u3051\u308b\u4e2d\u6838\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3067\u3059. \u4e3b\u306b\u3001\u30aa\u30fc\u30c7\u30a3\u30aa\u30bd\u30fc\u30b9\u3068\u30aa\u30fc\u30c7\u30a3\u30aa\u30b7\u30f3\u30af\u3068\u3044\u30462\u3064\u306e\u5f79\u5272\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059.<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>A2DP\u3068Bluetooth\u30d7\u30ed\u30c8\u30b3\u30eb\u30b9\u30bf\u30c3\u30af<\/strong><\/h3>\n\n<p>A2DP\u3092\u3001\u3042\u308b\u30c7\u30d0\u30a4\u30b9\u304b\u3089\u5225\u306e\u30c7\u30d0\u30a4\u30b9\u3078\u97f3\u697d\u3092\u300c\u5c4a\u3051\u308b\u300d\u9ad8\u901f\u7269\u6d41\u30c1\u30e3\u30cd\u30eb\u3068\u6349\u3048\u308b\u3068\u3001\u4e0a\u56f3\u306f\u3001\u97f3\u58f0\u304c\u751f\u6210\u3055\u308c\u3066\u304b\u3089\u7121\u7dda\u3067\u9001\u4fe1\u3055\u308c\u308b\u307e\u3067\u306e\u8cac\u4efb\u5206\u62c5\u3092\u793a\u3057\u3066\u3044\u307e\u3059.<\/p>\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/A2DP-System-Block-Diagram--1024x739.webp\" alt=\"\" class=\"wp-image-265187\" style=\"width:570px;height:auto\"\/><figcaption class=\"wp-element-caption\">\u56f31\u3000A2DP\u30b7\u30b9\u30c6\u30e0\u30d6\u30ed\u30c3\u30af\u56f3<\/figcaption><\/figure>\n\n<p>\u30b9\u30bf\u30c3\u30af\u306e\u6700\u4e0a\u4f4d\u306b\u3042\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\uff0f\u30aa\u30fc\u30c7\u30a3\u30aa\u30bd\u30fc\u30b9\u5c64(\u307e\u305f\u306f\u30aa\u30fc\u30c7\u30a3\u30aa\u30b7\u30f3\u30af\u5c64)\u306f\u3001\u300c\u30b3\u30f3\u30c6\u30f3\u30c4\u5de5\u5834\u300d\u517c\u300c\u30d7\u30ec\u30fc\u30e4\u30fc\u300d\u306e\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059.<\/p>\n\n<p>\u9001\u4fe1\u5074\u3067\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u304b\u3089PCM\u30aa\u30fc\u30c7\u30a3\u30aa\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3057\u3001SBC\u3084AAC\u306a\u3069Bluetooth\u304c\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306b\u30a8\u30f3\u30b3\u30fc\u30c9\u3057\u307e\u3059. \u53d7\u4fe1\u5074\u3067\u306f\u3001\u30d3\u30c3\u30c8\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u30c7\u30b3\u30fc\u30c9\u3057\u3066\u518d\u751f\u7528\u306e\u30aa\u30fc\u30c7\u30a3\u30aa\u306b\u623b\u3057\u307e\u3059. \u3053\u306e\u30ec\u30a4\u30e4\u30fc\u306f\u3001\u539f\u6750\u6599\u3084\u88fd\u54c1\u306e\u54c1\u8cea\u306b\u306a\u305e\u3089\u3048\u3089\u308c\u308b\u3088\u3046\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u6700\u3082\u76f4\u611f\u7684\u306b\u4f53\u611f\u3059\u308b\u97f3\u8cea\u3092\u76f4\u63a5\u5de6\u53f3\u3057\u307e\u3059.<\/p>\n\n<p>\u305d\u306e\u4e0b\u306b\u4f4d\u7f6e\u3059\u308bA2DP\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u5c64\u306f\u3001\u300c\u5354\u696d\u5951\u7d04\u300d\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059. \u3069\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u30bd\u30fc\u30b9\u3068\u3057\u3066\u3001\u3069\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u30b7\u30f3\u30af\u3068\u3057\u3066\u52d5\u4f5c\u3059\u308b\u304b\u306b\u52a0\u3048\u3001\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u308b\u30b3\u30fc\u30c7\u30c3\u30af\u3001\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8\u3001\u305d\u306e\u4ed6\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u5b9a\u7fa9\u3057\u307e\u3059. \u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u81ea\u4f53\u306f\u30aa\u30fc\u30c7\u30a3\u30aa\u30c7\u30fc\u30bf\u3092\u904b\u3073\u307e\u305b\u3093\u304c\u3001\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u958b\u59cb\u524d\u306b\u3001\u4e21\u7aef\u3067\u300c\u3069\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u4f7f\u3044\u3001\u3069\u306e\u3088\u3046\u306b\u4f1d\u9001\u3059\u308b\u304b\u300d\u306b\u3064\u3044\u3066\u5408\u610f\u3092\u5f62\u6210\u3057\u307e\u3059.<\/p>\n\n<p>\u305d\u306e\u4e0b\u306e\u30ec\u30a4\u30e4\u30fc\u304c\u300c\u8f38\u9001\u304a\u3088\u3073\u30b9\u30b1\u30b8\u30e5\u30fc\u30ea\u30f3\u30b0\u306e\u7ba1\u5236\u30bb\u30f3\u30bf\u30fc\u300d\u3067\u3042\u308bAVDTP\u3067\u3059. AVDTP\u306f\u3001\u30aa\u30fc\u30c7\u30a3\u30aa\u30b9\u30c8\u30ea\u30fc\u30e0\u306e\u78ba\u7acb\u3068\u7ba1\u7406\u3092\u62c5\u5f53\u3057\u307e\u3059. \u518d\u751f\u3001\u4e00\u6642\u505c\u6b62\u3001\u505c\u6b62\u306a\u3069\u306e\u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c\u3092\u660e\u793a\u7684\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u624b\u9806\u306b\u5909\u63db\u3057\u3001\u30a8\u30f3\u30b3\u30fc\u30c9\u6e08\u307f\u30aa\u30fc\u30c7\u30a3\u30aa\u30c7\u30fc\u30bf\u3092\u30e1\u30c7\u30a3\u30a2\u30c1\u30e3\u30cd\u30eb\u7d4c\u7531\u3067\u9001\u4fe1\u3057\u307e\u3059. \u5b9f\u969b\u306bA2DP\u3092\u5186\u6ed1\u306b\u52d5\u4f5c\u3055\u305b\u3089\u308c\u308b\u304b\u3069\u3046\u304b\u306f\u3001\u3053\u306e\u30ec\u30a4\u30e4\u30fc\u306b\u5927\u304d\u304f\u4f9d\u5b58\u3057\u307e\u3059.<\/p>\n\n<p>AVDTP\u306e\u4e0b\u306b\u306fL2CAP\u304c\u3042\u308a\u3001\u6a19\u6e96\u5316\u3055\u308c\u305f\u300c\u30b3\u30f3\u30c6\u30ca\u8f38\u9001\u30b7\u30b9\u30c6\u30e0\u300d\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059. \u3053\u3053\u3067\u306f\u3001\u30aa\u30fc\u30c7\u30a3\u30aa\u30c7\u30fc\u30bf\u3068\u5236\u5fa1\u60c5\u5831\u306e\u4e21\u65b9\u304c\u5206\u5272\u30fb\u30ab\u30d7\u30bb\u30eb\u5316\u30fb\u518d\u69cb\u6210\u30fb\u591a\u91cd\u5316\u3055\u308c\u307e\u3059. \u305d\u306e\u5f8c\u3001\u5358\u4e00\u306eBluetooth\u30ea\u30f3\u30af\u4e0a\u3067\u5b89\u5b9a\u304b\u3064\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u4f1d\u9001\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u3001\u4e0b\u4f4d\u30ec\u30a4\u30e4\u30fc\u3078\u79e9\u5e8f\u7acb\u3063\u3066\u914d\u9001\u3055\u308c\u307e\u3059.<\/p>\n\n<p>\u6700\u4e0b\u5c64\u3067\u306f\u3001LMP\u3001\u30d9\u30fc\u30b9\u30d0\u30f3\u30c9\u3001\u304a\u3088\u3073RF\u30ec\u30a4\u30e4\u30fc\u304c\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u300c\u9053\u8def\u3001\u8eca\u4e21\u3001\u7121\u7dda\u30a4\u30f3\u30d5\u30e9\u300d\u3092\u69cb\u6210\u3057\u307e\u3059. \u3053\u308c\u3089\u306e\u30ec\u30a4\u30e4\u30fc\u306f\u3001\u30c7\u30d0\u30a4\u30b9\u306e\u30da\u30a2\u30ea\u30f3\u30b0\u3001\u30ea\u30f3\u30af\u7ba1\u7406\u3001\u304a\u3088\u3073\u4e0a\u4f4d\u30ec\u30a4\u30e4\u30fc\u304b\u3089\u306e\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u3092Bluetooth\u7a7a\u4e2d\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u4e0a\u306e\u30d3\u30c3\u30c8\u30b9\u30c8\u30ea\u30fc\u30e0\u3078\u5909\u63db\u3057\u3066\u5b9f\u969b\u306e\u7121\u7dda\u4f1d\u9001\u3092\u884c\u3044\u307e\u3059.<\/p>\n\n<p>\u4e0a\u304b\u3089\u4e0b\u3078\u773a\u3081\u308b\u3068\u3001A2DP\u30d7\u30ed\u30c8\u30b3\u30eb\u30b9\u30bf\u30c3\u30af\u306b\u306f\u660e\u78ba\u306a\u4e0b\u5411\u304d\u306e\u6d41\u308c\u304c\u3042\u308a\u3001\u4e0a\u4f4d\u30ec\u30a4\u30e4\u30fc\u306f\u30aa\u30fc\u30c7\u30a3\u30aa\u30b3\u30f3\u30c6\u30f3\u30c4\u305d\u306e\u3082\u306e\u306b\u3001\u4e0b\u4f4d\u30ec\u30a4\u30e4\u30fc\u306f\u7121\u7dda\u306b\u3088\u308b\u30c7\u30fc\u30bf\u914d\u9001\u306b\u96c6\u4e2d\u3057\u3066\u3044\u307e\u3059. \u3053\u306e\u53b3\u5bc6\u306a\u8077\u8cac\u5206\u62c5\u306b\u3088\u3063\u3066\u3001Bluetooth\u30d8\u30c3\u30c9\u30db\u30f3\u3067\u5b89\u5b9a\u3057\u305f\u9023\u7d9a\u518d\u751f\u3092\u697d\u3057\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u3059.<\/p>\n\n<h2 class=\"wp-block-heading\"><strong>CRY578\u306b\u3088\u308bA2DP\u6a5f\u80fd\u30c6\u30b9\u30c8\u65b9\u6cd5?<\/strong><\/h2>\n\n<p>CRY578 Bluetooth LE Audio Interface\u306f\u3001Bluetooth\u30aa\u30fc\u30c7\u30a3\u30aa\u304a\u3088\u3073\u30e6\u30fc\u30b6\u30fc\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u30c6\u30b9\u30c8\u5c02\u7528\u306b\u8a2d\u8a08\u3055\u308c\u305f\u3001CRYSOUND\u306e\u6700\u65b0\u30c6\u30b9\u30c8\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3067\u3059. Bluetooth v5.4\u3092\u30d9\u30fc\u30b9\u3068\u3059\u308bCRY578\u306f\u3001\u30af\u30e9\u30b7\u30c3\u30afBluetooth\u304a\u3088\u3073Bluetooth Low Energy\u30aa\u30fc\u30c7\u30a3\u30aa\u306e\u4e21\u65b9\u3092\u540c\u6642\u306b\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u304a\u308a\u3001R&amp;D\u30e9\u30dc\u3068\u91cf\u7523\u30e9\u30a4\u30f3\u30c6\u30b9\u30c8\u306e\u53cc\u65b9\u3067\u306e\u5229\u7528\u306b\u9069\u3057\u3066\u3044\u307e\u3059.<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>A2DP\u30c6\u30b9\u30c8\u74b0\u5883\u306e\u69cb\u7bc9<\/strong><\/h3>\n\n<p>CRYSOUND\u306f\u3001A2DP\u30c6\u30b9\u30c8\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u305f\u3081\u306b\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3068\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u4e21\u65b9\u3092\u542b\u3080\u5b8c\u5168\u306aBluetooth\u30aa\u30fc\u30c7\u30a3\u30aa\u30c6\u30b9\u30c8\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3057\u307e\u3059.<\/p>\n\n<p>CRYSOUND\u306eBluetooth\u30aa\u30fc\u30c7\u30a3\u30aa\u30c6\u30b9\u30c8\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u69cb\u6210\u8981\u7d20\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>CRY578<\/strong>\u306fBluetooth\u30bd\u30fc\u30b9\u3068\u3057\u3066\u52d5\u4f5c\u3057\u3001\u30c7\u30d0\u30a4\u30b9\u306e\u691c\u51fa\u3001\u63a5\u7d9a\u3001\u304a\u3088\u3073\u30aa\u30fc\u30c7\u30a3\u30aa\u4f1d\u9001\u3092\u62c5\u5f53\u3057\u307e\u3059.<\/li>\n\n\n\n<li><strong>DUT(\u88ab\u8a66\u9a13\u30c7\u30d0\u30a4\u30b9)<\/strong>\u306fBluetooth\u30b7\u30f3\u30af\u3068\u3057\u3066\u52d5\u4f5c\u3057\u3001\u30aa\u30fc\u30c7\u30a3\u30aa\u30b9\u30c8\u30ea\u30fc\u30e0\u306e\u53d7\u4fe1\u3001\u30c7\u30b3\u30fc\u30c9\u3001\u304a\u3088\u3073\u518d\u751f\u3092\u884c\u3044\u307e\u3059.<\/li>\n\n\n\n<li><strong>B&amp;K HATS<\/strong>\u306f\u4eba\u9593\u306e\u97f3\u97ff\u7279\u6027\u3092\u6a21\u64ec\u3057\u3001\u30aa\u30fc\u30c7\u30a3\u30aa\u4fe1\u53f7\u3092\u53ce\u97f3\u3057\u3066\u3001\u53ce\u9332\u30b7\u30b9\u30c6\u30e0\u5411\u3051\u306e\u30a2\u30ca\u30ed\u30b0\u4fe1\u53f7\u306b\u5909\u63db\u3057\u307e\u3059.<\/li>\n\n\n\n<li><strong>SonoDAQ + OpenTest<\/strong>(<a href=\"https:\/\/opentest.com\/\"><\/a><a href=\"https:\/\/opentest.com\">https:\/\/opentest.com<\/a>)\u306f\u30c7\u30fc\u30bf\u53ce\u96c6\u3068\u89e3\u6790\u3092\u5b9f\u884c\u3057\u3001\u30c6\u30b9\u30c8\u7d50\u679c\u306b\u57fa\u3065\u3044\u3066DUT\u306e\u6027\u80fd\u3092\u8a55\u4fa1\u3057\u307e\u3059.<\/li>\n<\/ul>\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1002\" height=\"812\" src=\"https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/Test-System-Block-Diagram-1.webp\" alt=\"\" class=\"wp-image-273558\" style=\"aspect-ratio:1.234017595307918;width:454px;height:auto\" srcset=\"https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/Test-System-Block-Diagram-1.webp 1002w, https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/Test-System-Block-Diagram-1-300x243.webp 300w, https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/Test-System-Block-Diagram-1-768x622.webp 768w, https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/Test-System-Block-Diagram-1-68x55.webp 68w, https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/Test-System-Block-Diagram-1-600x486.webp 600w\" sizes=\"(max-width: 1002px) 100vw, 1002px\" \/><figcaption class=\"wp-element-caption\">\u56f32\u3000\u30c6\u30b9\u30c8\u30b7\u30b9\u30c6\u30e0\u30d6\u30ed\u30c3\u30af\u56f3<\/figcaption><\/figure>\n\n<p>\u3053\u306e\u69cb\u6210\u3067\u306f\u3001CRY578\u306fPC\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2(Bluetooth LE Audio Interface\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3)\u304b\u3089\u3001\u307e\u305f\u306f\u30b7\u30ea\u30a2\u30eb\u30b3\u30de\u30f3\u30c9\u3092\u4ecb\u3057\u3066\u5236\u5fa1\u3067\u304d\u3001\u5468\u8fba\u306eBluetooth\u30c7\u30d0\u30a4\u30b9\u3092\u30b9\u30ad\u30e3\u30f3\u3057\u3066\u63a5\u7d9a\u3092\u78ba\u7acb\u3057\u307e\u3059. \u30b9\u30a4\u30fc\u30d7\u3001\u30ce\u30a4\u30ba\u3001\u6b6a\u307f\u4fe1\u53f7\u306a\u3069\u306e\u6a19\u6e96\u7684\u306a\u30c6\u30b9\u30c8\u4fe1\u53f7\u306f\u3001PC\u304b\u3089\u518d\u751f\u3055\u308c\u307e\u3059. DUT\u304b\u3089\u306e\u97f3\u97ff\u51fa\u529b\u306fOpenTest\u306b\u3088\u3063\u3066\u53ce\u9332\u30fb\u89e3\u6790\u3055\u308c\u3001\u5468\u6ce2\u6570\u7279\u6027\u3001\u6b6a\u307f\u3001SN\u6bd4\u306a\u3069\u306e\u6027\u80fd\u6307\u6a19\u304c\u8a55\u4fa1\u3055\u308c\u307e\u3059. CRY578\u306f\u3001AAC\u3084LDAC\u3068\u3044\u3063\u305f\u9ad8\u97f3\u8cea\u30b3\u30fc\u30c7\u30c3\u30af\u3078\u306e\u5207\u308a\u66ff\u3048\u3084\u3001\u8907\u6570\u306e\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8\u306b\u3082\u5bfe\u5fdc\u3057\u3066\u304a\u308a\u3001\u5305\u62ec\u7684\u306a\u30c6\u30b9\u30c8\u304c\u53ef\u80fd\u3067\u3059.<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>A2DP\u30c6\u30b9\u30c8\u624b\u9806<\/strong><\/h3>\n\n<ul class=\"wp-block-list\">\n<li><strong>Bluetooth\u63a5\u7d9a\u306e\u78ba\u7acb<\/strong><\/li>\n<\/ul>\n\n<p>\u30c6\u30b9\u30c8\u306e\u958b\u59cb\u6642\u306b\u306f\u3001CRY578(<strong>A2DP\u30bd\u30fc\u30b9<\/strong>\u3068\u3057\u3066\u52d5\u4f5c)\u3068DUT(<strong>A2DP\u30b7\u30f3\u30af<\/strong>\u3068\u3057\u3066\u52d5\u4f5c)\u306e\u9593\u306bBluetooth\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059.<\/p>\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/inquiry-and-connect-1024x659.gif\" alt=\"\" class=\"wp-image-265189\" style=\"width:558px;height:auto\"\/><figcaption class=\"wp-element-caption\">\u56f33\u3000Inquiry\u304a\u3088\u3073\u63a5\u7d9a<\/figcaption><\/figure>\n\n<p>\u63a5\u7d9a\u30d7\u30ed\u30bb\u30b9\u306b\u306f\u3001\u30c7\u30d0\u30a4\u30b9\u691c\u51fa\u3068\u30da\u30a2\u30ea\u30f3\u30b0\u3001ACL\u30ea\u30f3\u30af\u306e\u78ba\u7acb\u3001A2DP\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3001\u304a\u3088\u3073\u30b3\u30fc\u30c7\u30c3\u30af\u6a5f\u80fd\u306e\u30cd\u30b4\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\u304c\u542b\u307e\u308c\u307e\u3059.<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30db\u30b9\u30c8PC\u304b\u3089\u306e\u30c6\u30b9\u30c8\u4fe1\u53f7\u751f\u6210<\/strong><\/li>\n<\/ul>\n\n<p>OpenTest\u3084SonoLab\u306a\u3069\u306e\u30aa\u30fc\u30c7\u30a3\u30aa\u30c6\u30b9\u30c8\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u304c\u3001\u5358\u4e00\u30c8\u30fc\u30f3\u306e\u6b63\u5f26\u6ce2\u3084\u30b9\u30a4\u30fc\u30d7\u306a\u3069\u306e\u6a19\u6e96\u4fe1\u53f7\u3092\u751f\u6210\u3057\u307e\u3059. \u3053\u308c\u3089\u306e\u4fe1\u53f7\u306fPCM\u30c7\u30fc\u30bf\u3068\u3057\u3066\u3001USB Audio Class(UAC)\u30ea\u30f3\u30af\u7d4c\u7531\u3067CRY578\u306b\u9001\u4fe1\u3055\u308c\u307e\u3059.<\/p>\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/Test-Scenario-1024x576.webp\" alt=\"\" class=\"wp-image-265190\" style=\"width:564px;height:auto\"\/><figcaption class=\"wp-element-caption\">\u56f34\u3000\u30c6\u30b9\u30c8\u30b7\u30ca\u30ea\u30aa<\/figcaption><\/figure>\n\n<ul class=\"wp-block-list\">\n<li><strong>CRY578\u306b\u3088\u308bBluetooth\u7d4c\u7531\u306e\u30aa\u30fc\u30c7\u30a3\u30aa\u4f1d\u9001<\/strong><\/li>\n<\/ul>\n\n<p>\u9023\u7d9a\u3059\u308bPCM\u30aa\u30fc\u30c7\u30a3\u30aa\u30b9\u30c8\u30ea\u30fc\u30e0\u306f\u307e\u305a\u56fa\u5b9a\u9577\u30d5\u30ec\u30fc\u30e0\u306b\u5206\u5272\u3055\u308c\u3001\u305d\u308c\u3089\u306e\u30d5\u30ec\u30fc\u30e0\u304c\u30a8\u30f3\u30b3\u30fc\u30c0(\u4f8b:SBC\u3084AAC)\u306b\u6e21\u3055\u308c\u3066\u5727\u7e2e\u3055\u308c\u3001\u30a8\u30f3\u30b3\u30fc\u30c9\u6e08\u307f\u30d5\u30ec\u30fc\u30e0\u304c\u751f\u6210\u3055\u308c\u307e\u3059. \u3053\u308c\u3089\u306e\u30d5\u30ec\u30fc\u30e0\u306f\u3001A2DP\u4ed5\u69d8\u306b\u5f93\u3063\u3066AVDTP\u30e1\u30c7\u30a3\u30a2PDU\u306b\u30ab\u30d7\u30bb\u30eb\u5316\u3055\u308c\u307e\u3059. PDU\u306fL2CAP\u306b\u3088\u3063\u3066\u5206\u5272\u30fb\u591a\u91cd\u5316\u3055\u308c\u3001HCI\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u901a\u3058\u3066Bluetooth\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3078\u6e21\u3055\u308c\u3001\u30d9\u30fc\u30b9\u30d0\u30f3\u30c9\u5c64\u3067ACL\u30d1\u30b1\u30c3\u30c8\u3068\u3057\u3066\u30d1\u30c3\u30b1\u30fc\u30b8\u30f3\u30b0\u3055\u308c\u305f\u5f8c\u3001Bluetooth RF\u30ea\u30f3\u30af\u3092\u4ecb\u3057\u3066\u9001\u4fe1\u3055\u308c\u307e\u3059.<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>DUT\u306b\u3088\u308b\u30c7\u30b3\u30fc\u30c9\u3068\u518d\u751f<\/strong><\/li>\n<\/ul>\n\n<p>DUT\u306f\u3001CRY578\u306e\u9001\u4fe1\u30c1\u30a7\u30fc\u30f3\u3068\u9006\u306e\u51e6\u7406\u3092\u884c\u3044\u307e\u3059. Bluetooth\u30d1\u30b1\u30c3\u30c8\u306fPCM\u30c7\u30fc\u30bf\u306b\u30c7\u30b3\u30fc\u30c9\u3055\u308c\u3001\u305d\u306e\u5f8cDAC\u306b\u3088\u3063\u3066\u30a2\u30ca\u30ed\u30b0\u4fe1\u53f7\u306b\u5909\u63db\u3055\u308c\u3001\u30b9\u30d4\u30fc\u30ab\u30fc\u304b\u3089\u51fa\u529b\u3055\u308c\u307e\u3059.<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>B&amp;K HATS\u306b\u3088\u308b\u97f3\u97ff\u53ce\u97f3<\/strong><\/li>\n<\/ul>\n\n<p>B&amp;K HATS\u306b\u5185\u8535\u3055\u308c\u305f\u9ad8\u7cbe\u5ea6\u30de\u30a4\u30af\u30ed\u30db\u30f3\u304c\u3001DUT\u304b\u3089\u51fa\u529b\u3055\u308c\u308b\u97f3\u3092\u53ce\u97f3\u3057\u3001\u30a2\u30ca\u30ed\u30b0\u4fe1\u53f7\u306b\u5909\u63db\u3057\u307e\u3059.<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>SonoDAQ + OpenTest\u306b\u3088\u308b\u30c7\u30fc\u30bf\u51e6\u7406\u3068\u89e3\u6790<\/strong><\/li>\n<\/ul>\n\n<p>SonoDAQ\u306f\u30a2\u30ca\u30ed\u30b0\u4fe1\u53f7\u3092\u30c7\u30b8\u30bf\u30eb\u5316\u3057\u3001OpenTest\u306b\u9001\u4fe1\u3057\u307e\u3059. OpenTest\u306f\u5185\u90e8\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u9069\u7528\u3057\u3066\u30aa\u30fc\u30c7\u30a3\u30aa\u30c7\u30fc\u30bf\u3092\u89e3\u6790\u3057\u3001\u5468\u6ce2\u6570\u7279\u6027\u3084\u6b6a\u307f\u6e2c\u5b9a\u5024\u306a\u3069\u306e\u7d50\u679c\u3092\u751f\u6210\u3057\u307e\u3059. \u3053\u308c\u3089\u306e\u7d50\u679c\u306b\u57fa\u3065\u304d\u3001DUT\u304c\u6c42\u3081\u3089\u308c\u308b\u6027\u80fd\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3057\u307e\u3059.<\/p>\n\n<h2 class=\"wp-block-heading\"><strong>\u30c6\u30b9\u30c8\u306b\u304a\u3051\u308bBluetooth\u30d7\u30ed\u30c8\u30b3\u30eb\u30a2\u30ca\u30e9\u30a4\u30b6\u306e\u4fa1\u5024<\/strong><\/h2>\n\n<p>\u30c6\u30b9\u30c8\u4e2d\u3001\u30aa\u30fc\u30c7\u30a3\u30aa\u30c7\u30fc\u30bf\u306f\u8907\u6570\u56de\u306e\u30c7\u30b8\u30bf\u30eb\u30fb\u30a2\u30ca\u30ed\u30b0\u5909\u63db\u3001RF\u4f1d\u9001\u3001\u304a\u3088\u3073\u97f3\u97ff\u30fb\u96fb\u6c17\u5909\u63db\u3092\u7d4c\u307e\u3059. \u3044\u305a\u308c\u304b\u306e\u6bb5\u968e\u3067\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u6700\u7d42\u7684\u306a\u30c6\u30b9\u30c8\u7d50\u679c\u306b\u5f71\u97ff\u3092\u53ca\u307c\u3057\u307e\u3059. \u30a2\u30ca\u30ed\u30b0\u304a\u3088\u3073\u30c7\u30b8\u30bf\u30eb\u4fe1\u53f7\u7d4c\u8def\u306e\u554f\u984c\u3092\u5207\u308a\u5206\u3051\u305f\u5f8c\u3082\u4e0d\u5177\u5408\u304c\u6b8b\u308b\u5834\u5408\u3001\u305d\u306e\u6839\u672c\u539f\u56e0\u306fBluetooth RF\u4f1d\u9001\u306b\u3042\u308b\u3053\u3068\u304c\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093. \u305d\u306e\u3088\u3046\u306a\u5834\u5408\u306b\u306f\u3001Bluetooth\u30d7\u30ed\u30c8\u30b3\u30eb\u30a2\u30ca\u30e9\u30a4\u30b6\u304c\u3001\u554f\u984c\u7b87\u6240\u3092\u7279\u5b9a\u3059\u308b\u305f\u3081\u306e\u6709\u52b9\u306a\u30c4\u30fc\u30eb\u3068\u306a\u308a\u307e\u3059.<\/p>\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/Capture-Bluetooth-packets-using-Ellisys-1024x609.gif\" alt=\"\" class=\"wp-image-265191\" style=\"width:515px;height:auto\"\/><figcaption class=\"wp-element-caption\">\u56f35\u3000Ellisys\u306b\u3088\u308bBluetooth\u30d1\u30b1\u30c3\u30c8\u306e\u30ad\u30e3\u30d7\u30c1\u30e3<\/figcaption><\/figure>\n\n<p>Bluetooth\u30aa\u30fc\u30c7\u30a3\u30aa\u30c6\u30b9\u30c8\u306b\u3054\u8208\u5473\u304c\u3042\u308b\u65b9\u306f\u3001<a href=\"https:\/\/design.crysound.com.cn\/product\/cry578-bluetooth-le-audio-interface\/\">CRY578 Bluetooth LE Audio Interface<\/a>\u306e\u30da\u30fc\u30b8\u3092\u3054\u89a7\u3044\u305f\u3060\u304f\u304b\u3001\u4e0b\u306e<strong>\u304a\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0<\/strong>\u306b\u3054\u5165\u529b\u304f\u3060\u3055\u3044.\u6298\u308a\u8fd4\u3057\u3054\u9023\u7d61\u3044\u305f\u3057\u307e\u3059.<\/p>\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A2DP(Advanced Audio Distribution Profile)\u306f\u3001\u9ad8\u97f3\u8cea\u30aa\u30fc\u30c7\u30a3\u30aa\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u306e\u305f\u3081\u306e\u30af\u30e9\u30b7\u30c3\u30afBluetooth\u306e\u4e2d\u6838\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3067\u3059. \u672c\u8a18\u4e8b\u3067\u306f\u3001A2DP\u304c\u3069\u306e\u3088\u3046\u306b\u97f3\u697d\u3092\u4f1d\u9001 [...]<\/p>\n","protected":false},"author":1,"featured_media":284912,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","content-type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[1061,1056,1065],"tags":[],"class_list":["post-284900","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-e3-83-8a-e3-83-ac-e3-83-83-e3-82-b8-e3-83-99-e3-83-bc-e3-82-b9","category-e3-83-96-e3-83-ad-e3-82-b0","category-e5-b0-8e-e5-85-a5-e4-ba-8b-e4-be-8b"],"blocksy_meta":[],"acf":[],"jetpack_featured_media_url":"https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/Cover-2.webp","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/design.crysound.com\/ja\/wp-json\/wp\/v2\/posts\/284900","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/design.crysound.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/design.crysound.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/design.crysound.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/design.crysound.com\/ja\/wp-json\/wp\/v2\/comments?post=284900"}],"version-history":[{"count":0,"href":"https:\/\/design.crysound.com\/ja\/wp-json\/wp\/v2\/posts\/284900\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/design.crysound.com\/ja\/wp-json\/wp\/v2\/media\/284912"}],"wp:attachment":[{"href":"https:\/\/design.crysound.com\/ja\/wp-json\/wp\/v2\/media?parent=284900"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/design.crysound.com\/ja\/wp-json\/wp\/v2\/categories?post=284900"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/design.crysound.com\/ja\/wp-json\/wp\/v2\/tags?post=284900"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}