{"id":1002,"date":"2021-03-24T14:39:10","date_gmt":"2021-03-24T06:39:10","guid":{"rendered":"https:\/\/soundbody-audio.com\/?p=1002"},"modified":"2021-03-26T19:12:03","modified_gmt":"2021-03-26T11:12:03","slug":"1002","status":"publish","type":"post","link":"https:\/\/soundbody-audio.com\/1002\/","title":{"rendered":"<\u77e5\u8b58\u5bb6> \u642d\u8d77\u6578\u4f4d\u985e\u6bd4\u7684\u6a4b\u6a11\uff0c\u4f60\u4e0d\u53ef\u4e0d\u77e5\u7684DAC"},"content":{"rendered":"\n<p>\u64b0\u6587\/\u73ca\u8fea\u3001\u6797\u5f65\u541b\u00a0 \u00a0\u4fee\u8a02\/\u66f8\u4e16\u8c6a<\/p>\n<p><span style=\"color: #800000;\"><em>\u00a0 \u00a0 \u00a0\u5728\u8aaa\u660e DAC \u70ba\u4f55\u7269\u4e4b\u524d\uff0c\u8acb\u5148\u60f3\u50cf\u4e00\u500b\u756b\u9762\uff1a<\/em><\/span><\/p>\n<p><span style=\"color: #800000;\"><em>\u00a0 \u00a0 \u00a0\u559c\u611b\u7684\u6b4c\u624b\u5728\u9304\u97f3\u5ba4\u4e2d\u9ad8\u5531\u8457\u65b0\u6b4c\uff0c\u800c\u4f60\u73fe\u5728\u6b63\u7528\u96fb\u8166\u64ad\u653e\u8457\u6b4c\u66f2\uff0c\u5f9e\u9304\u88fd\u97f3\u6a02\u5230\u64ad\u653e\u97f3\u6a02\u7684\u904e\u7a0b\u4e2d\uff0c\u5be6\u969b\u4e0a\u662f\u5c07\u985e\u6bd4\u97f3\u6e90\u9304\u88fd\u6210\u6578\u4f4d\u8cc7\u8a0a\uff0c\u518d\u7531\u6578\u4f4d\u8cc7\u8a0a\u8f49\u63db\u56de\u985e\u6bd4\u97f3\u6e90\u7684\u904e\u7a0b\uff0c\u5728\u4e00\u908a\u4eab\u53d7\u97f3\u6a02\u7684\u7247\u523b\uff0c\u4e5f\u4e00\u908a\u4f86\u4e86\u89e3 DAC \u5728\u9019\u8f49\u63db\u904e\u7a0b\u4e2d\u6240\u626e\u6f14\u7684\u89d2\u8272\u5427\uff01<\/em><\/span><\/p>\n<p>\u00a0<\/p>\n<blockquote>\n<h1>\u57fa\u672c\u6982\u5ff5\uff1a<\/h1>\n<h1>\u985e\u6bd4\u8a0a\u865f V.S. \u6578\u4f4d\u8a0a\u865f<\/h1>\n<\/blockquote>\n<p>\u00a0 \u00a0 \u00a0DAC\uff08Digital to Analog Converter\uff09\u53c8\u7a31\u70ba\u300c\u6578\u4f4d\u985e\u6bd4\u8f49\u63db\u5668\u300d\uff0c\u662f\u6578\u4f4d\u64ad\u653e\u7cfb\u7d71\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u91cd\u8981\u89d2\u8272\uff0c\u5b83\u80fd\u5c07\u6578\u4f4d\u8a0a\u865f\u9084\u539f\u56de\u985e\u6bd4\u8a0a\u865f\u3002\u4e0d\u8ad6\u4ee5 CD\u3001\u96fb\u8166\u6216\u624b\u6a5f\u64ad\u653e\u6578\u4f4d\u97f3\u8a0a\u6a94\u6848\uff0c\u90fd\u5fc5\u9808\u7d93\u7531 DAC \u7684\u8655\u7406\uff0c\u624d\u80fd\u5c07\u8a0a\u865f\u9001\u81f3\u64f4\u5927\u6a5f\u9032\u884c\u653e\u5927\uff0c\u518d\u900f\u904e\u63da\u8072\u5668\u5c07\u7f8e\u5999\u7684\u97f3\u6a02\u64ad\u653e\u51fa\u4f86\u3002<\/p>\n<p>\u00a0 \u00a0 \u300c\u985e\u6bd4\u8a0a\u865f\u300d\u8207\u300c\u6578\u4f4d\u8a0a\u865f\u300d\u7684\u539f\u7406\u662f\u4ec0\u9ebc\uff0c\u5f7c\u6b64\u4e4b\u9593\u53c8\u6709\u54ea\u4e9b\u5dee\u7570\uff1f\u7a76\u7adf\u54ea\u4e00\u7a2e\u7cfb\u7d71 \u6bd4\u8f03\u597d\u5462?\u6240\u8b02\u7684\u540c\u6b65\u6a21\u5f0f\u8207\u975e\u540c\u6b65\u6a21\u5f0f\u662f\u600e\u9ebc\u4e00\u56de\u4e8b\uff1f\u672c\u671f\u6240\u9644\u8d08\u7684 R-2R Ladder DAC \u53c8\u662f\u4ec0\u9ebc\u795e\u5175\u5229\u5668\uff1f\u4e14\u8b93\u6211\u5011\u4f86\u4e00\u63a2\u7a76\u7adf\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u70ba\u4e86\u8907\u88fd\u751f\u6d3b\u4e2d\u7684\u5404\u7a2e\u7f8e\u597d\u9ad4\u9a57\uff0c\u4eba\u5011\u767c\u660e \u4e86\u8a31\u591a\u5de5\u5177\u4f86\u8a18\u9304\u5f71\u50cf\u3001\u8072\u97f3\uff0c\u65e9\u671f\u7684\u5de5\u5177\u7686 \u4ee5\u300c\u985e\u6bd4\u300d(Analog)\u7684\u5f62\u5f0f\u8a18\u9304\uff0c\u5982\u5e95\u7247\u76f8 \u6a5f\u3001\u9ed1\u81a0\u5531\u7247\u3001\u5361\u5f0f\u9304\u97f3\u5e36\u7b49\u3002\u8fd1\u5e74\u4f86\uff0c\u7531\u65bc \u6578\u4f4d\u7522\u696d\u7684\u8208\u8d77\uff0c\u4eba\u5011\u8f49\u800c\u64c1\u62b1\u5404\u7a2e\u300c\u6578\u4f4d\u300d (Digital)\u5de5\u5177:\u6578\u4f4d\u76f8\u6a5f\u3001CD\u3001MP3 \u9010\u6f38\u53d6 \u4ee3\u904e\u5f80\u6c96\u6d17\u5e95\u7247\u3001\u5c07\u5361\u5e36\u63db\u9762\u7684\u56de\u61b6\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u7a76\u7adf\u4ec0\u9ebc\u662f\u300c\u985e\u6bd4\u8a0a\u865f\u300d\uff0c\u4ec0\u9ebc\u662f\u300c\u6578\u4f4d\u8a0a\u865f\u300d\u5462\uff1f\u8aaa\u660e\u767d\u9ede\uff0c<strong>\u300c\u985e\u6bd4\u300d\u5176\u5be6\u5c31\u662f\u300c\u9023\u7e8c\u3001\u4e0d\u53ef\u88ab\u91cf\u5316\u300d\u7684\u610f\u601d\u3002<\/strong>\u985e\u6bd4\u8a0a\u865f\u4e0d\u8ad6\u5728\u6642\u9593\u3001\u7a7a\u9593\u8207\u5f37\u5ea6\u4e0a\u90fd\u662f\u9023\u7e8c\u7684\uff0c\u6bcf\u4e00\u500b\u6642\u9593\u9ede\u90fd\u6709\u76f8\u5c0d\u61c9\u7684\u8a0a\u865f\u3002\u9020\u7269\u8005\u6240\u5275\u9020\u51fa\u4f86\u7684\u4e16\u754c\uff0c\u8af8\u5982\u5149\u5f71\u660e\u6697\u3001\u8072\u97f3\u3001\u6eab\u5ea6\u7b49\u4e94\u611f\u7684\u9ad4\u9a57\uff0c\u7686\u4ee5\u300c\u985e\u6bd4\u8a0a\u865f\u300d\u7684\u5f62\u614b\u5b58\u5728\u65bc\u6211\u5011\u7684\u65e5\u5e38\u751f\u6d3b\u4e2d\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u53cd\u4e4b\uff0c\u300c\u6578\u4f4d\u300d\u7684\u7279\u6027\u5247\u70ba\u300c\u4e0d\u9023\u7e8c\u3001\u53ef\u91cf\u5316\u300d\u7684\u3002<\/p>\n<p><img loading=\"lazy\" class=\"size-medium wp-image-1009 aligncenter\" src=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.49.44-800x310.png\" alt=\"\" width=\"800\" height=\"310\" srcset=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.49.44-800x310.png 800w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.49.44-510x197.png 510w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.49.44-1400x542.png 1400w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.49.44-768x297.png 768w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.49.44-1536x595.png 1536w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.49.44.png 1596w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>\u00a0 \u00a0 \u00a0\u9019\u6a23\u8aaa\u660e\u6216\u8a31\u9084\u662f\u6709\u9ede\u62bd\u8c61\uff0c\u53ef\u7528\u5716\u50cf\u4f86\u7406\u89e3\u5169\u7a2e\u8a0a\u865f\u7684\u5dee\u7570\u3002\u5716 1 \u70ba\u985e\u6bd4\u7684\u5f71\u50cf\uff0c\u8272\u5f69\u662f\u9023\u7e8c\u7684\uff0c\u65e5\u5e38\u6240\u898b\u7684\u81ea\u7136\u7f8e\u666f\u4ee5\u53ca\u76f8\u6a5f\u5e95\u7247\u7686\u5c6c\u65bc\u985e\u6bd4\u5f71\u50cf\uff0c\u5716 2 \u5247\u662f\u4ee5\u6578\u4f4d\u65b9\u5f0f\u5448\u73fe\u7684\u5f71\u50cf\uff0c\u5c07\u539f\u59cb\u7684\u5f71\u50cf\u5207\u5272\u6210\u8a31\u591a\u5c0f\u5340\u584a\uff0c\u4e26\u5728\u5340\u584a\u4e2d\u586b\u5165\u55ae\u4e00\u8272\u5f69\uff0c\u85c9\u6b64\u9084\u539f\u51fa\u771f\u5be6\u7684\u5f71\u50cf\uff0c\u96fb\u8166\u87a2\u5e55\u5448\u73fe\u7684\u756b\u9762\u5373\u70ba\u6578\u4f4d\u5f71\u50cf\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u8207\u771f\u5be6\u7684\u666f\u8c61\u76f8\u6bd4\uff0c\u8981\u8868\u73fe\u81ea\u7136\u7684\u6f38\u5c64\u8272\u5f69\uff0c\u6578\u4f4d\u7684\u5448\u73fe\u65b9\u5f0f\u4f3c\u4e4e\u7565\u986f\u4e0d\u8db3\uff0c\u4f46\u82e5\u80fd\u7528 \u66f4\u591a\u7684\u8cc7\u8a0a\u91cf\u8a18\u9304\u5f69\u8679\u7684\u8ecc\u8de1\uff0c\u85c9\u7531\u66f4\u7d30\u7684\u5bec\u5ea6\u3001\u66f4\u591a\u7684\u984f\u8272\u8207\u5c64\u6b21\u53bb\u63cf\u7e6a\u8272\u5f69\u7684\u8b8a\u5316\uff0c\u6578\u4f4d\u5f71\u50cf\u4fbf\u53ef\u5341\u5206\u903c\u8fd1\u985e\u6bd4\u5f71\u50cf\uff0c\u5448\u73fe\u51fa\u5982\u5716 3 \u7684\u6548\u679c\uff0c\u8089\u773c\u5e7e\u4e4e\u96e3\u4ee5\u5206\u8fa8\u5169\u8005\u7684\u5dee\u7570\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u56de\u5230\u97f3\u97ff\u61c9\u7528\u7684\u4e3b\u984c\uff0c\u6578\u4f4d\u3001\u985e\u6bd4\u97f3\u8a0a\u8f49\u63db\u7684\u65b9\u5f0f\u8207\u5716\u50cf\u539f\u7406\u662f\u76f8\u540c\u7684\uff0c\u53ea\u8981\u85c9\u7531\u66f4\u7cbe\u7d30\u7684\u5c64\u6b21\u53bb\u5206\u5272\u8207\u7d44\u5408\uff0c\u6578\u4f4d\u8a0a\u865f\u7d93\u904e\u8f49\u63db\u4e00\u6a23\u53ef\u4ee5\u9054\u5230\u5e7e\u53ef\u4e82\u771f\u7684\u8072\u97f3\u8868\u73fe\uff0c\u9019\u4e00\u5207\u6210\u6557\u8207\u5426\u8207 DAC \u606f\u606f\u76f8\u95dc\uff0c\u4ee5\u4e0b\u5c07\u66f4\u9032\u4e00\u6b65\u7684\u8aaa\u660e\u985e\u6bd4\u97f3\u8a0a\u8207\u6578\u4f4d\u97f3\u8a0a\u7684\u5dee\u7570\uff0c\u4ee5\u53ca\u5169\u8005\u4e4b\u9593\u5982\u4f55\u8f49\u63db\u3002<\/p>\n<p>\u00a0<\/p>\n<h2><span style=\"color: #666699;\">\u985e\u6bd4\u97f3\u8a0a\u7684\u9304\u88fd\u8207\u64ad\u653e<\/span><\/h2>\n<p>\u771f\u5be6\u7684\u8072\u97f3\u8a0a\u865f\u662f\u4e00\u9023\u4e32\u9023\u7e8c\u7684\u300c\u58d3\u529b\u300d\u8b8a\u5316\uff0c\u58d3\u529b\u8b8a\u5316\u901f\u5ea6\u8d8a\u5feb\uff0c\u8868\u793a\u97f3\u8a0a\u983b\u7387\u8d8a\u9ad8\uff0c \u800c\u97f3\u8a0a\u7684\u632f\u5e45\u8d8a\u5927\uff0c\u5176\u97ff\u5ea6\u8d8a\u5927\uff08\u5982\u4e0b\u5716\uff09\u3002<\/p>\n<p><img loading=\"lazy\" class=\"size-medium wp-image-1011 aligncenter\" src=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.26.42-800x308.png\" alt=\"\" width=\"800\" height=\"308\" srcset=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.26.42-800x308.png 800w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.26.42-510x197.png 510w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.26.42-1400x540.png 1400w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.26.42-768x296.png 768w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.26.42-1536x592.png 1536w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.26.42.png 1686w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>\u00a0 \u00a0 \u00a0\u56e0\u6b64\uff0c\u8a18\u9304\u985e\u6bd4\u97f3\u8a0a\u5fc5\u9808\u542b\u6709\u5169\u5927\u8cc7\u8a0a\u2014 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https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.28.32.png 638w\" sizes=\"(max-width: 246px) 100vw, 246px\" \/><\/p>\n<p>\u00a0 \u00a0 \u00a0\u65e9\u671f\u7684\u985e\u6bd4\u9304\u97f3\u5de5\u7a0b\u5229\u7528\u6a5f\u68b0\u5f0f\u6216\u96fb\u78c1\u5b78\u6280\u8853\uff0c\u5c07\u97f3\u8a0a\u6ce2\u5f62\u4e00\u4e94\u4e00\u5341\u5730\u523b\u5728\u9ed1\u81a0\u5531\u76e4\u4e0a\uff0c \u8ecc\u8de1\u8a18\u9304\u4e0b\u300c\u632f\u5e45\u300d\u8cc7\u8a0a\u3001\u65cb\u8f49\u901f\u5ea6\u5247\u7d00\u9304 \u300c\u6642\u9593\u300d\u8cc7\u8a0a\uff0c\u5c6c\u65bc\u985e\u6bd4\u7684\u7d00\u9304\u65b9\u5f0f\u3002\u64ad\u653e\u9ed1\u81a0\u5531\u7247\u6642\uff0c\u91cd\u64ad\u901f\u5ea6\u5fc5\u9808\u8207\u539f\u5148\u7684\u9304\u88fd\u901f\u5ea6\u76f8\u540c\uff0c\u5982\u679c\u64ad\u653e\u6642\u6539\u8b8a\u4e86\u901f\u5ea6\uff0c\u5c31\u7b49\u65bc\u6539\u8b8a\u4e86\u539f\u4f86\u97f3\u8a0a\u7684\u983b\u7387\uff0c\u800c\u97f3\u8ecc\u4e4b\u8d77\u4f0f\u8d8a\u63a5\u8fd1\u539f\u4f86\u7684\u97f3\u8a0a\u6ce2\u5f62\uff0c\u632f\u5e45\u7684\u5fe0\u5be6\u5ea6\u4e5f\u5c31\u8d8a\u9ad8\u3002 \u5531\u91dd\u4f9d\u9760\u7d30\u5fae\u7684\u632f\u52d5\u9084\u539f\u5531\u7247\u4e0a\u8a18\u9304\u7684\u8072\u97f3\u6ce2\u5f62\uff0c\u90a3\u4e9b\u6ce2\u5f62\u90fd\u662f\u6211\u5011\u8089\u773c\u770b\u4e0d\u5230\u7684\u8d85\u5fae\u5c0f\u523b\u75d5\uff08\u5982\u4e0b\u5716\uff09\u3002<img loading=\"lazy\" class=\" wp-image-1012 alignright\" src=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.28.23.png\" alt=\"\" width=\"286\" height=\"188\" \/><\/p>\n<p>\u00a0<\/p>\n<p>\u00a0 \u00a0 \u00a0\u5728\u9ed1\u81a0\u6bcd\u5e36\u523b\u88fd\u3001\u58d3\u5236\u91cf\u7522\u3001\u5531\u91dd\u5faa\u8ecc\u91cd\u64ad\u7b49\u6bcf\u4e00\u6b65\u9a5f\u88e1\uff0c\u53ea\u8981\u6709\u4efb\u4f55\u984d\u5916\u7684\u632f\u52d5\u3001\u7d30\u5fae \u7684\u7070\u5875\u6216\u8f49\u901f\u4e0a\u7684\u4e9b\u5fae\u5dee\u7570\uff0c\u90fd\u6703\u69cb\u6210\u539f\u6709\u97f3 \u8a0a\u6ce2\u5f62\u88e1\u6c92\u6709\u7684\u8b8a\u7570\u90e8\u5206\uff0c\u4e5f\u5c31\u6703\u9020\u6210\u8072\u97f3\u7684\u5931\u771f\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u985e\u6bd4\u8a0a\u6e90\u7684\u807d\u611f\u81ea\u7136\u5bec\u9b06\uff0c\u5341\u5206\u8ff7\u4eba\uff0c\u53ea\u662f\u8046\u807d\u74b0\u5883\u7684\u9650\u5236\u689d\u4ef6\u591a\uff0c\u9032\u5165\u9580\u6abb\u8f03\u9ad8\uff0c\u4e14\u96e3\u4ee5\u5b8c\u7f8e\u8907\u88fd\u3002\u56e0\u6b64\uff0c\u64ad\u653e\u7c21\u55ae\u3001\u50b3\u8f38\u4e0d\u6613\u5931\u771f\u3001\u5bb9\u6613\u4fdd\u5b58\u8207\u7de8\u8f2f\u7684\u6578\u4f4d\u8a0a\u6e90\u9010\u6f38\u8b8a\u6210\u7576\u4eca\u97f3\u6e90\u88fd\u4f5c\u7684\u4e3b\u6d41\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u8981\u5c07\u985e\u6bd4\u8a0a\u865f\u6578\u4f4d\u5316\u662f\u4e00\u500b\u8907\u96dc\u7684\u904e\u7a0b\uff0c\u800c\u5982\u4f55\u5c07\u6578\u4f4d\u8a0a\u865f\u9084\u539f\u56de\u985e\u6bd4\u8a0a\u865f\u53c8\u662f\u53e6\u4e00\u9580\u5b78\u554f\u3002\u4ee5\u4e0b\u7c21\u55ae\u4ecb\u7d39\u8072\u97f3\u8a0a\u865f\u662f\u5982\u4f55\u88ab\u6578\u4f4d\u5316\u8a18\u9304\u4fdd\u5b58\uff0c\u800c\u786c\u90a6\u90a6\u7684\u6578\u4f4d\u8a0a\u865f\uff0c\u53c8\u662f\u5982\u4f55\u8f49\u8b8a\u70ba\u6211\u5011\u8033\u6735\u88e1\u807d\u898b\u7684\u7f8e\u5999\u97f3\u7b26\u3002<\/p>\n<p>\u00a0<\/p>\n<h2><span style=\"color: #666699;\">\u985e\u6bd4\u97f3\u8a0a\u7684\u6578\u4f4d\u5316<\/span><\/h2>\n<p>\u00a0 \u00a0 \u00a0\u6578\u4f4d\u97f3\u8a0a\u8207\u985e\u6bd4\u97f3\u8a0a\u76f8\u540c\uff0c\u5728\u8a18\u9304\u6642\u5fc5\u9808\u540c\u6642\u4fdd\u5b58\u539f\u6709\u7684\u6642\u9593\u8207\u632f\u5e45\u5169\u5927\u8cc7\u8a0a\u3002 \u5c07\u97f3\u8a0a\u6578\u4f4d\u5316\u6700\u5e38\u4f7f\u7528\u7684\u65b9\u6cd5 \u70ba\u300c\u8108\u885d\u7de8\u78bc\u8abf\u8b8a\u300d\uff08Pulse Code Modulation\uff0c PCM\uff09\u300d\uff0c\u5305\u62ec\u4e0b\u5217 3 \u500b\u6b65\u9a5f\uff1a<span style=\"color: #0000ff;\"><strong>\u53d6\u6a23\uff08Sampling\uff09\u3001 \u91cf\u5316\uff08Quantizing\uff09\u3001 \u7de8\u78bc\uff08Encoding\uff09<\/strong><\/span>\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u6240\u8b02\u300c\u53d6\u6a23\u300d\uff0c\u662f\u4f9d\u64da\u7279\u5b9a\u7684\u6642\u9593\u55ae\u4f4d\uff0c\u628a\u97f3\u8a0a\u5207\u5272\u6210\u6bcf\u79d2\u6578\u5343\u5230\u6578\u842c\u500b\u7247\u6bb5\uff0c\u4e26\u9078\u53d6\u97f3\u8a0a\u88e1\u7684\u6642\u9593\u8cc7\u8a0a\uff08\u5716\u4e2d\u7da0\u7dda\uff09\uff1b\u800c\u300c\u91cf\u5316\u300d\u5247\u662f\u628a\u6bcf\u4e00\u500b\u53d6\u6a23\u9ede\u7684\u632f\u5e45\u8cc7\u8a0a\u8a18\u9304\u4e0b\u4f86\uff0c\u4e26\u4ee5\u6578\u5b57\u8868\u793a\uff08\u5716\u4e2d\u7684\u85cd\u9ede\uff09\uff1b\u300c\u7de8\u78bc\u300d\u5247\u662f\u628a\u6578\u5b57\uff0c\u8f49\u5316\u6210\u96fb\u8166\u770b\u5f97\u61c2\u7684\u300c0101\u22ef\u300d\u4ee5\u65b9\u4fbf\u8a18\u9304\u548c\u4fdd\u5b58\u3002<\/p>\n<p><img loading=\"lazy\" class=\"size-medium wp-image-1013 aligncenter\" src=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.30.36-800x377.png\" alt=\"\" width=\"800\" height=\"377\" srcset=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.30.36-800x377.png 800w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.30.36-510x241.png 510w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.30.36-768x362.png 768w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.30.36.png 924w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>\u00a0 \u00a0\u00a0<\/p>\n<p><img loading=\"lazy\" class=\" wp-image-1014 alignright\" src=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.30.51-173x400.png\" alt=\"\" width=\"218\" height=\"504\" srcset=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.30.51-173x400.png 173w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.30.51-510x1179.png 510w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.30.51-346x800.png 346w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.30.51.png 546w\" sizes=\"(max-width: 218px) 100vw, 218px\" \/><\/p>\n<p><span style=\"font-size: 14.4px;\">\u00a0 \u00a0 \u00a0\u7531\u6b64\u53ef\u77e5\uff0c\u300c\u53d6\u6a23\u300d\u4fdd\u7559\u4e86\u6642\u9593\u8cc7\u8a0a\uff0c\u300c\u91cf\u5316\u300d\u5247\u4fdd\u7559\u4e86\u632f\u5e45\u8cc7\u8a0a\u3002<\/span><\/p>\n<p>\u00a0 \u00a0 \u00a0\u5728\u97f3\u8a0a\u6536\u9304\u6642\uff0c\u5c07\u985e\u6bd4\u8a0a\u865f\u6578\u4f4d\u5316\u7684\u6a5f\u5668\u7a31\u70ba\u300cADC\u300d\uff08Analog to Digital Converter\uff0c \u985e\u6bd4\u6578\u4f4d\u8f49\u63db\u5668\uff09\u3002\u97f3\u8a0a\u6578\u4f4d\u5316\u7684\u6a94\u6848\u662f\u4e00\u9023\u4e32\u7684\u4e8c\u9032\u4f4d\u7de8\u78bc\u6578\u503c\uff0c\u64ad\u653e\u6642\u9808\u7d93\u7531\u300cDAC\u300d \uff08Digital to Analog Converter\uff0c\u6578\u4f4d\u985e\u6bd4\u8f49\u63db\u5668\uff09\u5c07\u6578\u4f4d\u8a0a\u865f\u91cd\u65b0\u8f49\u63db\u6210\u9023\u7e8c\u7684\u985e\u6bd4\u8a0a\u865f\uff0c\u624d\u80fd\u5c07\u8a0a\u865f\u9001\u5165\u64f4\u5927\u6a5f\u9032\u884c\u653e\u5927\uff0c\u518d\u900f\u904e\u63da\u8072\u5668\u64ad\u653e\u51fa\u4f86\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0DAC \u6703\u5c07\u9019\u4e9b\u300c\u5b57\u7d44\u300d\u4ee5\u540c\u4e00\u53c3 \u8003\u6642\u5e8f\u8f49\u63db\uff0c\u5f62\u6210\u76f8\u5c0d\u7684\u96fb\u58d3\u6216\u96fb \u6d41\uff0c\u518d\u7d93\u904e\u4f4e\u901a\u6ffe\u6ce2\u5668\u5c07\u8a0a\u865f\u6ce2\u5f62\u8b8a \u5f97\u6ed1\u9806\uff0c\u6062\u5fa9\u6210\u539f\u672c\u7684\u985e\u6bd4\u97f3\u8a0a\u6ce2 \u5f62\u3002\u53ef\u7531\u53f3\u5716\u4f86\u4e86\u89e3\u985e\u6bd4\u97f3\u8a0a\u7d93\u904e\u8f49 \u63db\uff0c\u8b8a\u70ba\u4e8c\u9032\u4f4d\u7de8\u78bc\u6578\u503c\uff0c\u518d\u8f49\u63db\u56de\u985e\u6bd4\u97f3\u8a0a\u7684\u904e\u7a0b\u3002<\/p>\n<p>\u00a0<\/p>\n<h2><span style=\"color: #666699;\">\u518d\u8ac7\u53d6\u6a23\u91cf\u5316\u8207\u7de8\u78bc<\/span><\/h2>\n<p>\u00a0 \u00a0 \u00a0\u6536\u9304\u97f3\u8a0a\u6642\u53d6\u6a23\u7684\u901f\u5ea6\u7a31\u70ba\u300c\u53d6\u6a23\u7387\u300d\uff0c\u55ae\u4f4d\u662f Hz\uff0c\u53d6\u6a23\u7387 44.1kHz \u4ee3\u8868\u6bcf\u79d2\u9418\u5c0d\u97f3\u6a02\u53d6\u6a23\u4e86 44,100 \u6b21\u3002\u53d6\u6a23\u7387\u8d8a\u9ad8\uff0c\u6240\u8a18\u9304\u7684\u97f3\u8a0a\u6ce2\u5f62\u5c31\u8d8a\u63a5\u8fd1\u539f\u59cb\u8a0a\u865f\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u5982\u679c\u5e0c\u671b\u80fd\u5b8c\u6574\u5730\u8a18\u9304\u6240\u6c42\u7684\u8a0a\u865f\u983b\u5bec\uff0c\u5247\u53d6\u6a23\u983b\u7387\u5fc5\u9808\u5927\u65bc\u8a0a\u865f\u983b\u7387\u7684\u5169\u500d\uff0c\u7a31\u70ba\u300c\u5948\u594e\u65af\u7279\u5b9a\u7406\u300d \uff08Nyquist&#8217;s Law\uff09\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u4eba\u985e\u807d\u89ba\u7684\u983b\u5bec\u7d04\u70ba 20Hz- 20kHz\uff0c\u7406\u8ad6\u4e0a\uff0c\u4ee5 40kHz \u7684\u901f\u5ea6\u5c0d\u8072\u6ce2\u9032\u884c\u53d6\u6a23\uff0c\u4fbf\u80fd\u9084\u539f\u51fa 20kHz \u7684\u8072\u6ce2\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u7d93\u904e\u53d6\u6a23\u5f8c\uff0c\u5fc5\u9808\u628a\u6bcf\u4e00\u500b\u53d6\u6a23\u9ede \u7684\u632f\u5e45\u8cc7\u8a0a\u8a18\u9304\u4e0b\u4f86\uff0c\u91cf\u5316\u7684\u7d1a\u8ddd\u5206 \u5f97\u8d8a\u7d30\uff0c\u8a18\u9304\u5230\u7684\u632f\u5e45\u8cc7\u8a0a\u5c31\u8d8a\u63a5\u8fd1 \u539f\u672c\u7684\u6ce2\u5f62\u3002\u7531\u65bc\u96fb\u8166\u53ea\u770b\u5f97\u61c2 0 \u548c 1\uff0c\u91cf\u5316\u5f8c\uff0c\u5fc5\u9808\u518d\u628a\u5341\u9032\u4f4d\u7684\u6578\u503c \u8f49\u63db\u6210\u96fb\u8166\u770b\u5f97\u61c2\u7684 0 \u8ddf 1\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u4e00\u500b 0 \u6216 1 \u7a31 \u70ba 1bit\uff08\u4f4d\u5143\uff09\uff0c 2bit \u7684 02 \u8ddf1\u53ef\u4ee5\u8868\u73fe\u51fa <img loading=\"lazy\" class=\"wp-image-1025 alignnone\" src=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/CodeCogsEqn.gif\" alt=\"\" width=\"49\" height=\"16\" \/> \u7a2e\u5c64\u7684\u80fd\u91cf\u8207\u6ce2 3 \u5f62\u5dee\u7570\uff0c3bit \u53ef\u8868\u73fe\u51fa\u00a0<img loading=\"lazy\" class=\"alignnonewp-image-1026\" src=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/CodeCn.gif\" alt=\"\" width=\"49\" height=\"16\" \/> \u7a2e\u968e\u5c64\uff0c16bit \u53ef\u4ee5\u8868\u73fe\u51fa\u9ad8\u9054 <img loading=\"lazy\" class=\"alignnonewp-image-1027\" src=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/ogsEqn.gif\" alt=\"\" width=\"110\" height=\"22\" \/> \u7a2e\u968e\u5c64\uff0c24 \u800c\u5230\u9054 24bit \u6642\uff0c\u5247\u53ef\u8868\u793a\u7d04 <img loading=\"lazy\" class=\"alignnonewp-image-1028\" src=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/CodesEqn.gif\" alt=\"\" width=\"100\" height=\"22\" \/>\u842c\u7a2e\u968e\u5c64\u3002\u00a0<\/p>\n<p>\u00a0 \u00a0 \u00a01,677 \u842c\u7a2e\u968e\u5c64\uff0c\u9019\u9a5a\u4eba\u7684\u6578\u5b57\u4ee3\u8868\u4e86\u6578\u4f4d\u8a18\u9304\u6642\u53ef\u9054\u5230\u7684\u7d30\u5fae\u7a0b\u5ea6\uff0c\u6b63\u5982\u524d\u9762\u6240\u63d0\u5230\u7684\u5716\u5f62\u6982\u5ff5\uff0c\u97f3\u8a0a\u8a18\u9304\u6642\u4f7f\u7528\u7684\u4f4d\u5143\u6578\u8d8a\u591a\uff0c\u5176\u5728\u8072\u97f3\u4e0a\u7684\u300c\u89e3\u6790\u5ea6\u300d\u4e5f\u8d8a\u9ad8\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u89c0\u5bdf\u91cf\u5316\u7d1a\u8ddd\u5206\u6210 4 \u968e\u8207 8 \u968e\u6240\u5f97\u5230\u7684\u6ce2\u5f62\uff08\u4e0b\u5716\u7684\u85cd\u8272\u7dda\u689d\uff09\uff0c\u53ef\u770b\u51fa\u53d6\u6a23\u7387\u8d8a\u5927\u3001\u91cf\u5316\u7d1a\u8ddd\u8d8a\u7d30\uff0c\u5247\u5931\u771f\u8d8a\u5c0f\uff0c\u6240\u5f97\u5230\u7684\u6ce2\u5f62\u4e5f\u8d8a\u5b8c\u6574\u3002<\/p>\n<p><img loading=\"lazy\" class=\"size-medium wp-image-1015 aligncenter\" src=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.33.51-800x312.png\" alt=\"\" width=\"800\" height=\"312\" srcset=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.33.51-800x312.png 800w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.33.51-510x199.png 510w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.33.51-768x300.png 768w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.33.51.png 964w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>\u00a0 \u00a0 \u00a0\u73fe\u4eca\u7684\u6578\u4f4d\u9304\u97f3\u6280\u8853\u5df2\u53ef\u9054 384kHz\/32bit\uff0c\u800c\u534a\u5c0e\u9ad4\u5ee0\u5546\u4e5f\u5df2\u7d93\u6709\u5c0d\u61c9\u7684 768kHz\/32bit\u7684ADC\u6676\u7247\uff0c \u7531\u65bc\u4ee5 96kHz\/24bit \u6216192kHz\/24bit \u6240\u9304\u88fd\u51fa\u4f86\u7684\u97f3\u8cea\u5df2\u7d93\u975e\u5e38\u512a\u7570\uff0c\u76ee\u524d\u9304\u97f3\u5de5\u7a0b\u591a\u4f7f\u7528\u6b64\u898f\u683c\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u7136\u800c\uff0c\u4ee5 96kHz\/24bit \u6216 192kHz\/24bit \u9304\u88fd\u51fa\u4f86\u7684\u97f3\u6a02\uff0c\u6240\u5360\u7684\u8a18\u61b6\u9ad4\u5bb9\u91cf\u975e\u5e38\u9f90\u5927\uff0c\u53d7\u9650\u65bc\u5132\u5b58\u5a92\u4ecb\u7684\u5bb9\u91cf\u9650\u5236\uff0c\u7576\u8f49\u9304\u88fd\u5230 CD \u6642\uff0c\u6a94\u6848\u898f\u683c\u6703\u964d\u81f3 44.1kHz\/16bit\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u7406\u8ad6\u4e0a\uff0c44.1kHz \u7684\u53d6\u6a23\u7387\u5df2\u53ef\u9084\u539f\u4eba\u8033\u6240\u80fd\u807d\u898b\u7684\u6700\u9ad8\u97f3\uff0c\u4e0d\u904e\uff0c\u4eba\u8033\u96d6\u7136\u807d\u4e0d\u898b 20kHz \u4ee5\u4e0a\u7684\u8072\u6ce2\uff0c\u537b\u80fd\u611f\u89ba\u5230\u7d30\u5fae\u7684\u5dee\u7570\u3002 \u7d93\u904e\u5be6\u9a57\u8b49\u5be6\uff0c\u4ee5 96kHz \u751a\u81f3\u662f\u66f4\u9ad8\u7684\u53d6\u6a23\u7387\u6240\u9304\u88fd\u51fa\u4f86\u7684\u97f3\u6a02\uff0c\u97f3\u6a02\u807d\u8d77\u4f86\u6703\u66f4\u958b\u6717\u900f\u660e\uff0c\u53ef\u6709\u6548\u63d0\u5347\u6574\u9ad4\u7684\u97f3\u8cea\uff0c\u6b64\u5916\uff0c\u5728\u6536\u9304\u6642\u63d0\u9ad8\u53d6\u6a23\u7387\uff0c\u4e5f\u53ef\u78ba\u4fdd 20kHz \u7684\u983b\u6bb5\u80fd\u66f4\u5b8c\u7f8e\u5730\u88ab\u4fdd\u5b58\u4e0b\u4f86\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u7531\u65bc\u79d1\u6280\u9032\u6b65\uff0c\u8a31\u591a\u73a9\u5bb6\u65e9\u5df2\u4e0d\u6eff\u8db3\u65bc CD \u7684\u97f3\u8cea\uff0c\u7dda\u4e0a\u97f3\u6a02\u5546\u5e97\u7d1b\u7d1b\u63a8\u51fa\u6bd4 CD \u66f4\u9ad8\u898f\u683c\u7684\u6bcd\u5e36\u97f3\u8a0a\u6a94\u6848\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u4e0d\u904e\uff0c\u6709\u4e86 96\/192kHz\u300124bit \u9ad8\u53d6\u6a23\u9ad8\u89e3\u6790\u7684\u6578\u4f4d\u97f3\u6a02\u6a94\u6848\uff0c\u4e5f\u8981\u6709\u540c\u7b49\u7d1a\u7684 DAC \u628a\u5b83\u89e3\u78bc\u9084\u539f\u6210\u985e\u6bd4\u8a0a\u865f\u624d\u884c\uff0c\u56e0\u6b64\uff0c\u8cfc\u8cb7\u6642\u8981\u7279\u5225\u6ce8\u610f DAC \u53ef\u652f\u63f4\u7684\u53d6\u6a23\u7387\u8207\u8072\u97f3\u89e3\u6790\u5ea6\uff0c\u4e0d\u7136\u7a7a\u6709\u9ad8\u898f\u683c\u7684\u8a0a\u6e90\u4e5f\u662f\u767d\u5fd9\u4e00\u5834\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u5982\u524d\u6240\u8ff0\uff0c\u53d6\u6a23\u7387\u8207\u89e3\u6790\u5ea6\u56fa\u7136\u662f\u8d8a\u9ad8\u8d8a\u597d\uff0c\u4f46\u9ad8\u53d6\u6a23\u7387\u8207\u9ad8\u89e3\u6790\u5ea6\u4f34\u96a8\u800c\u4f86\u7684\u5c31\u662f\u8f03\u5927\u7684\u8cc7\u6599\u91cf\uff0c\u9700\u8981\u8f03\u5927\u7684\u8a18\u61b6\u9ad4\u4f86\u5132\u5b58\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u4ee5\u4e00\u9996\u96d9\u8072\u9053\u9304\u88fd\u3001\u9577\u5ea6 4 \u5206\u9418\u7684\u6b4c\u66f2\u70ba\u4f8b\uff0c96kHz\/24bit \u9304\u88fd\u51fa\u4f86\u7684\u97f3\u6a02\u6240\u5360\u7684\u8a18\u61b6\u9ad4\u5bb9\u91cf\u9ad8\u9054 138MB\uff0c\u5c31\u7b97\u662f 44.1kHz\/16bit\uff0c\u4e5f\u9700\u8981 42MB \u7684\u8a18\u61b6\u9ad4\u7a7a\u9593\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u4e00\u822c\u7684\u96a8\u8eab\u88dd\u7f6e\u4e26\u6c92\u6709\u90a3\u9ebc\u5927\u7684\u5132\u5b58\u7a7a\u9593\uff0c\u70ba\u4e86\u53ef\u4ee5\u5132\u5b58\u66f4\u591a\u7684\u6b4c\u66f2\uff0c\u5404\u7a2e\u6578\u4f4d\u6a94\u6848\u7684\u58d3\u7e2e\u6280\u8853\u4fbf\u61c9\u904b\u800c\u751f\u3002<\/p>\n<p>\u00a0<\/p>\n<blockquote>\n<h1><span style=\"color: #000000;\">\u50b3\u9001\u8a0a\u865f\u7684\u6a4b\u6a11\uff1a<\/span><\/h1>\n<h1><span style=\"color: #000000;\">\u6578\u4f4d\u50b3\u8f38\u4ecb\u9762<\/span><\/h1>\n<\/blockquote>\n<p>\u00a0 \u00a0 \u00a0\u5728\u64b0\u5beb\u3008\u77e5\u8b58\u5bb6\u3009\u4e4b\u524d\uff0c\u4e5f\u66fe\u7d93\u4ee5\u70ba\u53ea\u8981\u8033\u6a5f\u9023\u63a5\u63da\u8072\u5668\u6216\u96fb\u8166\u5c31\u53ef\u4ee5\u76f4\u63a5\u807d\u97f3\u6a02\uff0c\u5f8c\u4f86\u624d\u66c9\u5f97\uff0c\u539f\u4f86\u591a\u5a92\u9ad4\u63da\u8072\u5668\u90fd\u6709\u5167\u5efa\u64f4\u5927\u6a5f\u4f86\u653e\u5927\u8a0a\u865f\u3001\u96fb\u8166\u5247\u6709\u97f3\u6548\u5361\uff08\u4e5f\u5c31\u662f DAC\uff09\u8655\u7406\u6578\u4f4d\u8a0a\u6e90\uff0c\u624d\u80fd\u5982\u6b64\u65b9\u4fbf\u5730\u64ad\u653e\u97f3\u6a02\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u4e0d\u904e\uff0c\u56e0\u70ba\u975e\u5c08\u696d\u7684\u96fb\u8166\u97f3\u6548\u5361\u6709\u4e00\u5b9a\u7684\u9650\u5236\uff0c\u8b1b\u7a76\u97f3\u8cea\u7684\u8046\u807d\u8005\u5e38\u5229\u7528\u5916\u63a5\u5f0f DAC \u7372\u5f97\u66f4\u9ad8\u54c1\u8cea\u7684\u97f3\u6a02\u3002\u5916\u63a5\u5f0f DAC \u7121\u8ad6\u5728\u89e3\u78bc\u6676\u7247\u3001\u96fb\u6e90\u4f9b\u61c9\u3001\u985e\u6bd4\u653e\u5927\u7b49\u65b9\u9762\uff0c\u88fd\u4f5c\u548c\u8a2d\u8a08\u90fd\u6bd4\u4e00\u822c\u5167\u5efa\u97f3\u6548\u5361\u66f4\u52a0\u8b1b\u7a76\uff0c\u662f\u63d0\u5347\u96fb\u8166\u97f3\u6a02\u64ad\u653e\u7684\u5229\u5668\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u5728\u64cd\u4f5c\u4e0a\uff0c\u4e0d\u8ad6\u662f\u5f9e\u96fb\u8166\u6216 CD \u64ad\u653e\u5668\u5c07\u6578\u4f4d\u8a0a\u865f\u8f38\u51fa\u81f3 DAC\uff0c\u5747\u9700\u900f\u904e\u300c\u6578\u4f4d\u50b3\u8f38\u4ecb\u9762\u300d\u50b3\u8f38\uff0c\u5e38\u898b\u7684\u6709\u4ee5\u4e0b\u5e7e\u7a2e\uff1aS\/PDIF\u3001USB\u3001 Firewire\u3001AES\/EBU\u3001HDMI\u3001 \u4e59\u592a\u7db2\u8def\u7dda\u7b49\uff0c \u5176\u4e2d\u53c8\u4ee5 S\/PDIF \u53ca USB \u5728\u5bb6\u7528\u97f3\u97ff\u754c\u6700\u70ba\u666e\u904d\uff0c\u4ee5\u4e0b\u5c07\u7c21\u55ae\u4ecb\u7d39\u9019\u5169\u7a2e\u4ecb\u9762\u7684\u61c9\u7528\u3002<\/p>\n<p>\u00a0<\/p>\n<h2><span style=\"color: #666699;\">\u9577\u8ddd\u96e2\u50b3\u8f38\uff1a\u6a5f\u5668 V.S. \u6a5f\u5668<\/span><\/h2>\n<p>\u00a0 \u00a0 \u00a0S\/PDIF \u7684\u5168\u540d\u70ba Sony\/Philips Digital Interconnect Format\uff0c \u662f Sony \u8207 Philips \u9019\u4e8c\u5927\u88fd\u9020\u696d\u5de8\u982d\u5728 1980 \u5e74\u4ee3\u70ba\u5bb6\u7528\u5668\u6750\u6240\u5236\u5b9a\u51fa\u4f86\u7684\u6578\u4f4d\u8a0a\u865f\u50b3\u8f38\u4ecb\u9762\uff0c\u4e3b\u8981\u61c9\u7528\u65bc CD \u64ad\u653e\u5668\u3002\u540c\u8ef8\u8207\u5149\u7e96\uff08\u5982\u4e0b\u5716\uff09\u6240\u50b3\u8f38\u7684\u4fe1\u865f\u90fd\u662f S\/PDIF \u683c\u5f0f\uff0c\u662f\u76f8\u540c\u7a2e\u985e\u7684\u6578\u4f4d\u8cc7\u6599\uff0c\u53ea\u662f\u4f7f \u7528\u7684\u63a5\u982d\u5f62\u5f0f\u4e0d\u540c\u800c\u5df2\u3002<\/p>\n<p><img loading=\"lazy\" class=\"size-medium wp-image-1031 aligncenter\" src=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.34.43-768x400.png\" alt=\"\" width=\"768\" height=\"400\" srcset=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.34.43-768x400.png 768w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.34.43-510x266.png 510w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.34.43.png 1244w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/p>\n<p>\u00a0 \u00a0 \u00a0\u800cUSB\u4ecb \u9762\u5247\u662f\u7531 Intel \u8207 Microsoft \u65bc 1990 \u5e74\u4ee3\u5021\u5c0e\u767c\u8d77\uff0c\u5176\u958b\u767c\u7684\u6700\u521d\u76ee\u7684\u4e26\u4e0d\u662f\u7528\u4f86\u50b3\u8f38\u6578\u4f4d\u97f3\u6a02\uff0c\u4e3b\u8981\u61c9\u7528\u65bc\u96fb\u8166\u3002\u767c\u8868\u521d\u671f\u666e\u53ca\u5ea6\u9060\u4e0d\u5982 S\/PDIF\uff0c\u56e0\u6b64\u65e9\u671f\u7684 DAC \u591a\u914d\u5099 S\/PDIF \u4ecb\u9762\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u7136\u800c\u8fd1\u5e7e\u5e74\uff0c\u5e7e\u4e4e\u6bcf\u53f0\u96fb\u8166\u3001\u667a\u6167\u578b\u624b\u6a5f\u90fd\u914d\u6709 USB \u4ecb\u9762\uff0c\u96a8\u8457\u9019\u4e9b\u96fb\u5b50\u88dd\u7f6e\u7684\u76db\u884c\uff0cUSB \u7684\u666e\u53ca\u5ea6\u4e5f\u5927\u5e45\u63d0\u5347\uff0c\u751a\u81f3\u8d85\u8d8a S\/PDIF \u4ecb\u9762\u3002\u518d\u52a0\u4e0a\u7db2\u8def\u53ca\u97f3\u6a02\u64ad\u653e\u8edf\u9ad4\u7684\u767c\u9054\uff0c\u53ea\u8981\u900f\u904e\u96fb\u8166\u4fbf\u53ef\u8f15\u9b06\u8046\u807d\u81ea\u5df1\u559c\u611b\u7684\u97f3\u6a02\uff0c\u96fb\u8166\u3001\u624b\u6a5f\u7b49\u88dd\u7f6e\u9010\u6f38\u53d6\u4ee3\u5be6\u9ad4 CD\uff0c\u6210\u70ba\u4e3b\u6d41\u7684\u8046\u807d\u65b9\u5f0f\u3002\u4ee5 USB \u4f5c\u70ba\u50b3\u8f38\u4ecb\u9762\u7684 USB DAC \u4e5f\u4e58\u8457\u9019\u80a1\u98a8\u6f6e\u4e00\u8e8d\u800c\u8d77\uff0c\u900f\u904e\u96fb\u8166\u5df2\u6709\u7684\u63d2\u69fd\u53d6\u4ee3\u5167\u5efa\u7684\u97f3\u6548\u8a2d\u5099\uff0c\u8f15\u9b06\u63d0\u5347\u8046\u8cde\u54c1\u8cea\u3002<\/p>\n<p>\u00a0<\/p>\n<h2><span style=\"color: #666699;\">\u77ed\u8ddd\u96e2\u50b3\u8f38\uff1a\u6676\u7247 V.S. \u6676\u7247<\/span><\/h2>\n<p>\u00a0 \u00a0 \u00a0\u524d\u8ff0\u63d0\u53ca\u7684 S\/PDIF \u8207 USB \u90fd\u662f\u5c6c\u65bc\u300c\u6a5f\u5668\u300d \u8207\u300c\u6a5f\u5668\u300d\u4e4b\u9593\u7684\u6578\u4f4d\u8a0a\u865f\u50b3\u8f38\u4ecb\u9762\uff0c\u9069\u7528\u65bc\u9577\u8ddd\u96e2\u7684\u50b3\u8f38\uff0c\u4f46 S\/PDIF \u8207 USB \u683c\u5f0f\u7684\u8a0a\u865f\u5747\u7121\u6cd5\u76f4\u63a5\u50b3\u9001\u5230 DAC \u6676\u7247\uff0c\u5fc5\u9808\u5148\u628a\u8a0a\u865f\u8f49\u63db \u6210 DAC \u6676\u7247\u770b\u5f97\u61c2\u7684 <img loading=\"lazy\" class=\"alignnonewp-image-1032\" src=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/CEqn.gif\" alt=\"\" width=\"34\" height=\"19\" \/>\uff08Inter-IC Sound\uff09\u683c \u5f0f\uff0c\u624d\u6709\u8fa6\u6cd5\u505a\u6578\u4f4d\u8207\u985e\u6bd4\u7684\u8f49\u63db\u3002<span style=\"background-color: #ffffff;\"><img loading=\"lazy\" class=\"alignnonewp-image-1032\" src=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/CEqn.gif\" alt=\"\" width=\"33\" height=\"18\" \/><\/span> \u662f\u300c\u6676\u7247\u300d\u8207\u300c\u6676\u7247\u300d\u4e4b\u9593\u50b3\u8f38\u6578\u4f4d\u8a0a\u865f\u7684\u4ecb\u9762\u6a19\u6e96\uff0c\u9069\u7528\u65bc\u77ed\u8ddd\u96e2\u7684\u50b3\u8f38\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u56e0\u6b64\uff0c\u4e00\u53f0 DAC \u4e2d\u9664\u4e86\u6709 DAC \u6676\u7247\u4ee5\u5916\uff0c \u9084\u5fc5\u9808\u6709\u5c0d\u61c9\u7684 S\/PDIF \u63a5\u6536\u6676\u7247\u6216 USB \u63a5\u6536 \u6676\u7247\uff0c\u5c07\u8a0a\u865f\u8f49\u63db\u6210 <img loading=\"lazy\" class=\"alignnonewp-image-1032\" src=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/CEqn.gif\" alt=\"\" width=\"33\" height=\"18\" \/> \u5f8c\uff0c\u518d\u50b3\u8f38\u81f3 DAC \u6676 \u7247\u505a\u8655\u7406\uff08\u5982\u4e0b\u5716\uff09\u3002USB \u63a5\u6536\u6676\u7247\u7684\u54c1\u8cea\u597d\u58de\u5c0d\u97f3\u8cea\u5f71\u97ff\u5f88\u5927\uff0c\u50f9\u5dee\u53ef\u81f3\u767e\u500d\uff0c\u4e00\u500b\u597d\u7684 USB \u63a5\u6536\u6676\u7247\u662f\u97f3\u8cea\u512a\u7570\u7684 USB DAC \u7684\u57fa\u790e\u3002<\/p>\n<p><img loading=\"lazy\" class=\"size-medium wp-image-1016 aligncenter\" src=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.35.33-753x400.png\" alt=\"\" width=\"753\" height=\"400\" srcset=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.35.33-753x400.png 753w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.35.33-510x271.png 510w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.35.33-768x408.png 768w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.35.33.png 956w\" sizes=\"(max-width: 753px) 100vw, 753px\" \/><\/p>\n<h2><span style=\"color: #666699;\">\u540c\u6b65\u8207\u975e\u540c\u6b65<\/span><\/h2>\n<p>\u00a0 \u00a0 \u00a0\u4e0d\u8ad6\u662f\u300c\u6a5f\u5668\u300d\u6216\u300c\u6676\u7247\u300d\u9593\u7684\u8cc7\u6599\u50b3\u8f38\uff0c \u767c\u9001\u7aef\u8207\u63a5\u6536\u7aef\u90fd\u5fc5\u9808\u8981\u5354\u8abf\u5f7c\u6b64\u9593\u7684\u6b65\u4f10\uff0c \u63a5\u6536\u8207\u767c\u9001\u901f\u5ea6\u7684\u4e00\u81f4\u6027\uff0c\u662f\u300c\u8cc7\u6599\u80fd\u5426\u5982\u5be6\u50b3\u905e\u300d\u7684\u95dc\u9375\u3002\u8b93\u5169\u7aef\u540c\u6b65\u767c\u9001\u8207\u63a5\u6536\u6700\u7c21\u55ae\u7684\u89e3\u6c7a\u65b9\u5f0f\uff0c\u5c31\u662f\u767c\u9001\u7aef\u628a\u8cc7\u6599\uff08Data\uff09\u8207\u6642\u8108\uff08Clock\uff09\u540c\u6642\u50b3\u7d66\u63a5\u6536\u7aef\uff0c\u544a\u77e5\u63a5\u6536\u7aef\u767c\u9001\u7684\u983b\u7387\u662f\u591a\u5c11\uff0c\u63a5\u6536\u7aef\u5373\u4f9d\u7167\u6b64\u6642\u8108\u7684\u983b\u7387\u63a5CM \u6536\u8cc7\u6599\u3002\u5982\u4e0a\u5716\u6240\u793a\uff0cS\/PDIF \u6703\u5c07 Clock \u7de8\u78bc\u9032 Data \u88e1\u4e00\u8d77\u50b3\u9001\uff0c<img loading=\"lazy\" class=\"alignnonewp-image-1032\" src=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/CEqn.gif\" alt=\"\" width=\"30\" height=\"17\" \/> \u5247\u53ef\u540c\u6642\u5206\u5225\u50b3\u9001 Clock \u8207 Data\uff0c\u9019\u5169\u8005\u90fd\u7a31\u70ba\u300c\u540c\u6b65\u6a21\u5f0f\u300d\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u800c USB \u4ecb\u9762\u7576\u521d\u8a2d\u8a08\u6642\u53ea\u80fd\u55ae\u7368\u50b3\u8f38 Data\uff0c\u7121\u6cd5\u540c\u6b65\u50b3\u8f38 Clock\uff0c\u56e0\u6b64\u767c\u9001\u7aef\u8207\u63a5\u6536\u7aef\u9808\u6709\u5404\u81ea\u7684 Clock\uff0c\u5169\u7aef\u5404\u4f9d\u7167\u81ea\u5df1\u7684 Clock \u5de5\u4f5c\uff0c\u7a31\u70ba\u300c\u975e\u540c\u6b65\u6a21\u5f0f\u300d\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u8a66\u60f3\uff0cUSB DAC\uff08\u63a5\u6536\u7aef\uff09\u8207\u96fb\u8166\uff08\u767c\u9001\u7aef\uff09\u8981\u5982\u4f55\u5728\u5404\u81ea\u6709\u81ea\u5df1\u7684 Clock \u7684\u60c5\u5f62\u4e0b\u4e00 \u8d77\u5de5\u4f5c\uff0c\u800c\u4e0d\u6703\u6b65\u4f10\u4e0d\u4e00\u81f4\u51fa\u73fe\u932f\u8aa4\u5462\uff1f<\/p>\n<p>\u00a0 \u00a0 \u00a0\u4ee5\u4e0b\u9032\u4e00\u6b65\u4f86\u4e86\u89e3 USB DAC \u7684\u50b3\u8f38\u6a21\u5f0f\u3002<\/p>\n<p>\u00a0<\/p>\n<blockquote>\n<h1>\u63a5\u6536\u8cc7\u6599\uff0c\u9ed8\u5951\u5f88\u91cd\u8981<\/h1>\n<\/blockquote>\n<h2><span style=\"color: #666699;\">USB DAC \u7684\u4e09\u7a2e\u50b3\u8f38\u6a21\u5f0f<\/span><\/h2>\n<p>\u00a0 \u00a0 \u00a0\u60f3\u50cf\u68d2\u7403\u5834\u4e0a\uff0c\u6295\u624b\u8207\u6355\u624b\u4e4b\u9593\u8981\u57f9\u990a\u9ed8\u5951\uff0c\u50b3\u905e\u8a0a\u865f\u5c31\u50cf\u662f\u6295\u624b\uff08\u767c\u9001\u7aef\uff0c\u96fb \u8166\uff09\u8207\u6355\u624b\uff08\u63a5\u6536\u7aef\uff0cUSB DAC\uff09\u4e4b\u9593\u7684\u4e1f\u63a5\u7403\uff0c\u70ba\u4e86\u7dad\u6301\u5169\u8005\u4e4b\u9593\u7684\u5de5\u4f5c\u9806\u66a2\uff0cUSB Audio \u8207\u96fb\u8166\u9593\u5354\u5b9a\u51fa\u4e09\u7a2e\u50b3\u8f38\u6a21\u5f0f\uff1a<span style=\"color: #000080;\"><strong>\u81ea\u7531\u50b3\u8f38\u6a21\u5f0f\uff08Synchronous\uff09\u3001 \u6539\u826f\u7684\u81ea\u7531\u50b3\u8f38\u6a21\u5f0f\uff08Self Adaptive\uff09\u8207\u8ff4\u6388\u5f0f\u50b3\u8f38\u6a21\u5f0f\uff08Asynchronous\uff09<\/strong><\/span>\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u9019\u4e09\u7a2e\u6a21\u5f0f\uff0c\u4e5f\u5e38\u88ab\u7a31\u70ba\u540c\u6b65\u6a21\u5f0f\u3001\u81ea\u9069\u61c9\u6a21\u5f0f\u8207\u975e\u540c\u6b65\u6a21\u5f0f\uff0c\u4f46\u5728\u6b64\u6240\u6307\u7684\u540c\u6b65\u3001\u975e\u540c\u6b65\u8207\u4e0a\u4e00\u6bb5\u63d0\u53ca\u7684\u540c\u6b65\u6a21\u5f0f\uff08\u540c\u6642\u50b3\u9001 Data \u8207 Clock\uff09\u662f\u5b8c\u5168\u4e0d\u4e00\u6a23\u7684\u6771\u897f\uff0c\u70ba\u4e86\u907f\u514d\u6df7\u6dc6\uff0c \u4ee5\u4e0b\u4ee5\u5168\u540d\u7a31\u4e4b\uff0c\u4e26\u8a73\u7d30\u8aaa\u660e\u9019\u4e09\u7a2e\u6a21\u5f0f\u7684\u5dee\u7570\u3002<\/p>\n<h4><strong><span style=\"color: #d83131;\">\u81ea\u7531\u50b3\u8f38\u6a21\u5f0f\uff08Synchronous\uff09<\/span><\/strong><\/h4>\n<p>\u00a0 \u00a0 \u00a0\u6b64\u6a21\u5f0f\u5c31\u50cf\u6295\u624b\u8207\u6355\u624b\u77c7\u4f4f\u773c\u775b\u8033\u6735\uff0c\u4e26\u5728\u6295\u6355\u624b\u4e4b\u9593\u67b6\u4e00\u5ea7\u4f9b\u7403\u50b3\u8f38\u7684\u8ecc\u9053\uff0c\u96d9\u65b9\u7d04\u5b9a\u597d\u958b\u59cb\u7684\u6642\u9593\u9ede\u4ee5\u53ca\u50b3\u3001\u63a5\u7403\u7684\u901f\u7387\uff0c\u5404\u81ea\u6839\u64da\u81ea\u5df1\u7684\u6642\u9418\u9ed8\u6578\u7bc0\u594f\uff0c\u4f9d\u7167\u300c\u9ed8\u5951\u300d\u50b3\u7403\u3002\u9019\u7a2e\u6a21\u5f0f\u7684\u8a2d\u8a08\u6700\u70ba\u7c21\u55ae\uff0c\u4f46\u5982\u679c\u5169\u8005\u7684\u6642\u9418\u5feb\u6162\u4e0d\u4e00\u81f4\uff0c\u4e00\u6bb5\u6642\u9593\u4e4b\u5f8c\uff0c\u4fbf\u53ef\u80fd\u7522\u751f\u50b3\u592a\u5feb\u5c0e\u81f4\u6f0f\u63a5\u3001\u6216\u662f\u56e0\u70ba\u50b3\u592a\u6162\u800c\u64b2\u7a7a\u7684\u554f\u984c\u3002\u5c0d\u65bc\u97f3\u8cea\u8981\u6c42\u4e0d\u9ad8\u7684 USB \u63da\u8072\u5668\uff0c\u6240\u4f7f\u7528\u7684\u4fbf\u662f\u6b64\u985e\u6a21\u5f0f\u7684\u7522\u54c1\u3002<\/p>\n<h4><strong><span style=\"color: #d83131;\">\u6539\u826f\u7684\u81ea\u7531\u50b3\u8f38\u6a21\u5f0f\uff08Self Adaptive\uff09<\/span><\/strong><\/h4>\n<p>\u00a0 \u00a0 \u00a0\u5404\u9805\u689d\u4ef6\u8207\u81ea\u7531\u50b3\u8f38\u6a21\u5f0f\u76f8\u540c\uff0c\u4e0d\u540c\u7684\u662f\u63db\u4e86\u500b\u6703\u81ea\u52d5\u8abf\u6574\u63a5\u7403\u983b\u7387\u7684\u6355\u624b\u3002\u6295\u624b\u4f9d\u7136\u9075\u7167\u7d04\u5b9a\uff0c\u6309\u7167\u81ea\u5df1\u9ed8\u6578\u7684\u7bc0\u594f\u4e1f\u7403\uff1b\u4f46\u6355\u624b\u5728\u63a5\u7403\u6642\u591a\u4e86\u9ede\u8a23\u7ac5\uff0c\u5982\u679c\u6f0f\u63a5\u4e86\u7403\uff0c\u4fbf\u96a8\u6642\u5fae\u8abf\u81ea\u5df1\u7684\u63a5\u7403\u983b\u7387\u3002\u7136\u800c\uff0c\u6355\u624b\u4e26\u4e0d\u662f\u6bcf\u6b21\u90fd\u53ef\u4ee5\u731c\u4e2d\u6295\u624b\u7684\u6295\u7403\u7bc0\u594f\uff0c\u4e0d\u505c\u8abf\u6574\u63a5\u7403\u983b\u7387\u7684\u7d50\u679c\uff0c\u6709\u6642\u53cd\u800c\u6703\u5f04\u5de7\u6210\u62d9\u3002<\/p>\n<h4><span style=\"color: #d83131;\"><strong>\u8ff4\u6388\u5f0f\u50b3\u8f38\u6a21\u5f0f\uff08Asynchronous\uff09<\/strong><\/span><\/h4>\n<p>\u00a0 \u00a0 \u00a0\u6b64\u6a21\u5f0f\u4e5f\u7a31\u70ba\u300c\u975e\u540c\u6b65\u50b3\u8f38\u300d\u3002\u6295\u624b\u3001\u6355\u624b\u4f9d\u820a\u77c7\u8457\u773c\uff0c\u4f46\u4e0d\u540c\u7684\u662f\u6295\u624b\u5f35\u4e86\u8033\u3001\u6355\u624b\u958b\u4e86\u53e3\u3002\u6355\u624b\u4e00\u908a\u63a5\u7403\u3001\u4e00\u908a\u958b\u53e3\u6578\u62cd\u5b50\uff1b\u6295\u624b\u807d\u5230\u6355\u624b\u5538\u7684\u62cd\u5b50\uff0c\u4fee\u6b63\u81ea\u5df1\u7684\u7bc0\u594f\u518d\u6295\u7403\u51fa\u53bb\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u7406\u8ad6\u4e0a\u9019\u662f\u6700\u597d\u7684\u65b9\u5f0f\uff0c\u5982\u679c\u9084\u80fd\u7d66\u6355\u624b\u518d\u914d \u500b\u300c\u540d\u9336\u300d\uff08\u512a\u8cea\u7684\u632f\u76ea\u5668\u3001\u751a\u81f3\u662f\u539f\u5b50\u9418\uff09\uff0c \u6b63\u662f\u6211\u5011\u6240\u671f\u5f85\u7684\u6b63\u78ba\u50b3\u8f38\u8cc7\u6599\u3001\u4f4e\u5931\u771f\u7684\u7406\u60f3\u72c0\u614b\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0\u96fb\u8166\u626e\u6f14\u7684\u89d2\u8272\u5c31\u50cf\u6295\u624b\uff0c\u5728\u8ff4\u6388\u5f0f\u50b3\u8f38\u6a21\u5f0f\u4e0b\uff0c\u4e0d\u4f46\u8981\u5c0b\u627e\u4e00\u500b\u6703\u958b\u53e3\u6578\u62cd\u5b50\u7684\u6355\u624b\uff08USB DAC\uff09\uff0c\u4e5f\u8981\u78ba\u5b9a\u81ea\u5df1\u7684\u96fb\u8166\u807d\u5f97\u61c2\u62cd\u5b50\u3002\u7136\u800c\uff0c\u4e26\u975e\u6bcf\u53f0\u96fb\u8166\u7684\u4f5c\u696d\u7cfb\u7d71\u90fd\u6703\u807d\u62cd\u5b50\uff0c\u6b64\u6642\u53ea\u80fd\u4ef0\u8cf4\u5de5\u7a0b\u5e2b\u5728\u8edf\u9ad4\u4e0a\u53e6\u95e2\u51fa\u8def\uff0c\u81ea\u884c\u958b\u767c DAC \u5c08\u5c6c\u7684\u9a45\u52d5\u7a0b\u5f0f\uff0c\u5354\u52a9\u60a8\u6253\u958b\u6295\u624b\u7684\u8033\u6735\u3002\u7531\u65bc\u4f5c\u696d\u7cfb\u7d71\u7248\u672c\u773e\u591a\uff0c\u8207\u5176\u4ed6\u61c9\u7528\u7a0b\u5f0f\u9593\u7684\u76f8\u5bb9\u6027\u4e5f\u662f\u4e00\u5927\u554f\u984c\uff0c\u300c\u8ff4\u6388\u5f0f\u50b3\u8f38\u6a21\u5f0f\u300d\uff08Asynchronous\uff09\u7522\u54c1\u67b6\u69cb\u8907\u96dc\uff0c\u8edf\u9ad4 \u958b\u767c\u6210\u672c\u9ad8\uff0c\u56e0\u6b64\u591a\u4f7f\u7528\u65bc\u9ad8\u968e\u7684\u7522\u54c1\u3002<\/p>\n<p>\u00a0<\/p>\n<blockquote>\n<h1>USB DAC \u7684\u512a\u9ede\u8207\u9650\u5236<\/h1>\n<\/blockquote>\n<p>\u00a0 \u00a0 \u00a0USB DAC \u4f5c\u70ba\u6642\u4e0b\u6700\u6d41\u884c\u7684\u6578\u4f4d\u985e\u6bd4\u8f49\u63db\u5668\uff0c\u81ea\u7136\u6709\u5b83\u7684\u9053\u7406\uff0c\u9664\u4e86\u5e7e\u4e4e\u6bcf\u53f0\u96fb\u8166\u8207\u624b\u6a5f\u7686\u6709\u914d\u5099 USB 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src=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.36.31-800x285.png\" alt=\"\" width=\"800\" height=\"285\" srcset=\"https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.36.31-800x285.png 800w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.36.31-510x182.png 510w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.36.31-768x273.png 768w, https:\/\/soundbody-audio.com\/wp-content\/uploads\/2021\/03\/\u622a\u5716-2021-03-24-15.36.31.png 938w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>\u00a0 \u00a0 \u00a0\u7531\u65bc\u4e0d\u540c\u53d6\u6a23\u7387\u7684\u97f3\u6e90\u7121\u6cd5\u76f4\u63a5\u6df7\u97f3\uff0c\u60f3\u5728\u96fb\u8166\u4e0a\u4f5c\u300c\u6df7\u97f3\u8655\u7406\u300d\uff0c\u5c31\u5fc5\u9808\u5c0d\u4e0d\u540c\u7684\u97f3\u6e90\u505a\u300c\u53d6\u6a23\u7387\u8f49\u63db\u300d\uff08SRC\uff0csamplingrate 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