{"id":372,"date":"2024-08-09T11:41:40","date_gmt":"2024-08-09T03:41:40","guid":{"rendered":"https:\/\/hsiang.cc\/?p=372"},"modified":"2024-08-09T22:49:03","modified_gmt":"2024-08-09T14:49:03","slug":"%e7%99%bd%e5%99%aa%e9%9f%b3%e8%88%87%e7%a8%8b%e5%bc%8f%e7%af%84%e4%be%8b","status":"publish","type":"post","link":"https:\/\/hsiang.cc\/?p=372","title":{"rendered":"\u767d\u566a\u97f3\u8207\u7a0b\u5f0f\u7bc4\u4f8b"},"content":{"rendered":"

\u4ec0\u9ebc\u662f\u767d\u566a\u97f3\uff1f<\/h2>\n

\u767d\u566a\u97f3\uff08White Noise\uff09\u662f\u4e00\u7a2e\u5305\u542b\u5404\u7a2e\u4e0d\u540c\u983b\u7387\u8072\u97f3\u7684\u6df7\u5408\u8072\uff0c\u9019\u4e9b\u8072\u97f3\u4ee5\u76f8\u540c\u7684\u5f37\u5ea6\u4e00\u8d77\u64ad\u653e\uff0c\u5f62\u6210\u4e00\u7a2e\u5e73\u7a69\u7684\u80cc\u666f\u8072\u97f3\u3002\u807d\u8d77\u4f86\u50cf\u6301\u7e8c\u7684\u55e1\u55e1\u8072\u6216\u5636\u5636\u8072\uff0c\u985e\u4f3c\u65bc\u98a8\u6247\u904b\u8f49\u3001\u4e0b\u96e8\u6216\u6d77\u6d6a\u7684\u8072\u97f3\u3002\u767d\u566a\u97f3\u7684\u540d\u5b57\u4f86\u81ea\u65bc\u300c\u767d\u5149\u300d\uff0c\u56e0\u70ba\u767d\u5149\u5305\u542b\u6240\u6709\u984f\u8272\u7684\u5149\uff0c\u985e\u4f3c\u5730\uff0c\u767d\u566a\u97f3\u4e5f\u5305\u542b\u6240\u6709\u53ef\u807d\u5230\u7684\u8072\u97f3\u983b\u7387\u3002<\/p>\n

\u767d\u566a\u97f3\u7684\u7279\u6027<\/h2>\n
    \n
  1. \u6db5\u84cb\u5ee3\u6cdb\u983b\u7387<\/strong>\uff1a\u767d\u566a\u97f3\u5305\u542b\u4e86\u6211\u5011\u8033\u6735\u80fd\u807d\u5230\u7684\u6240\u6709\u983b\u7387\uff0c\u5f9e\u4f4e\u97f3\u768420\u8d6b\u8332\uff08Hz\uff09\u5230\u9ad8\u97f3\u768420,000\u8d6b\u8332\u3002<\/li>\n
  2. \u8072\u97f3\u5e73\u7a69<\/strong>\uff1a\u6bcf\u500b\u983b\u7387\u7684\u8072\u97f3\u5f37\u5ea6\u662f\u4e00\u81f4\u7684\uff0c\u9019\u4f7f\u5f97\u5b83\u807d\u8d77\u4f86\u975e\u5e38\u5e73\u7a69\uff0c\u6c92\u6709\u7a81\u5140\u7684\u8b8a\u5316\u3002<\/li>\n
  3. \u96a8\u6a5f\u6027<\/strong>\uff1a\u767d\u566a\u97f3\u662f\u96a8\u6a5f\u7684\u8072\u6ce2\uff0c\u6c92\u6709\u660e\u986f\u7684\u65cb\u5f8b\u6216\u7bc0\u594f\uff0c\u6240\u4ee5\u4e0d\u6703\u5f15\u8d77\u6ce8\u610f\u3002<\/li>\n<\/ol>\n

    <\/p>\n

    \u767d\u566a\u97f3\u7684\u7528\u9014<\/h2>\n

    \u767d\u566a\u97f3\u5728\u751f\u6d3b\u548c\u91ab\u7642\u4e2d\u6709\u5f88\u591a\u7528\u9014\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u61c9\u7528\uff1a<\/p>\n

      \n
    1. \u5e6b\u52a9\u7761\u7720<\/strong>\uff1a\u767d\u566a\u97f3\u53ef\u4ee5\u63a9\u84cb\u7a81\u5982\u5176\u4f86\u7684\u566a\u97f3\uff0c\u6bd4\u5982\u8eca\u8072\u6216\u9130\u5c45\u7684\u8072\u97f3\uff0c\u5e6b\u52a9\u4f60\u66f4\u5feb\u5165\u7761\u4e26\u4fdd\u6301\u6df1\u5ea6\u7761\u7720\u3002<\/li>\n
    2. \u63d0\u9ad8\u5c08\u6ce8\u529b<\/strong>\uff1a\u5728\u5de5\u4f5c\u6216\u5b78\u7fd2\u6642\uff0c\u767d\u566a\u97f3\u53ef\u4ee5\u906e\u63a9\u74b0\u5883\u4e2d\u7684\u96dc\u97f3\uff0c\u8b93\u4f60\u66f4\u5c08\u6ce8\u3002<\/li>\n
    3. \u5275\u9020\u5b89\u975c\u74b0\u5883<\/strong>\uff1a\u5728\u958b\u653e\u8fa6\u516c\u5ba4\u6216\u5608\u96dc\u7684\u74b0\u5883\u4e2d\uff0c\u767d\u566a\u97f3\u53ef\u4ee5\u63a9\u84cb\u5468\u570d\u7684\u8ac7\u8a71\u8072\uff0c\u8b93\u5de5\u4f5c\u7a7a\u9593\u66f4\u5b89\u975c\u3002<\/li>\n
    4. \u6cbb\u7642\u7528\u9014<\/strong>\uff1a\u767d\u566a\u97f3\u6709\u6642\u7528\u65bc\u6cbb\u7642\u8033\u9cf4\uff0c\u56e0\u70ba\u5b83\u53ef\u4ee5\u63a9\u84cb\u8033\u9cf4\u8072\uff0c\u4f7f\u60a3\u8005\u611f\u89ba\u8212\u9069\u3002<\/li>\n<\/ol>\n

      \u5982\u4f55\u7522\u751f\u767d\u566a\u97f3<\/h2>\n

      \u73fe\u5728\u7522\u751f\u767d\u566a\u97f3\u975e\u5e38\u7c21\u55ae\uff0c\u6709\u8a31\u591a\u5c08\u9580\u7684\u8a2d\u5099\u548c\u61c9\u7528\u7a0b\u5f0f\u53ef\u4ee5\u751f\u6210\u767d\u566a\u97f3\uff0c\u751a\u81f3\u4f60\u53ef\u4ee5\u81ea\u5df1\u7de8\u5beb\u7a0b\u5f0f\u4f86\u7522\u751f\u767d\u566a\u97f3\u3002\u4ee5\u4e0b\u662f\u5169\u500b\u7528 Python \u7de8\u5beb\u7684\u7c21\u55ae\u7a0b\u5f0f\uff0c\u4f86\u7522\u751f\u4e0d\u540c\u6548\u679c\u7684\u767d\u566a\u97f3\u3002<\/p>\n

      \u7b2c\u4e00\u500b\u7bc4\u4f8b<\/h3>\n

      \u9019\u500b\u7bc4\u4f8b\u662f\u57fa\u672c\u7684\u767d\u566a\u97f3\uff0c\u53ef\u80fd\u6703\u807d\u8d77\u4f86\u6bd4\u8f03\u5435\u96dc\uff1a<\/p>\n

      import numpy as np\nimport sounddevice as sd\n\n# \u8a2d\u5b9a\u53c3\u6578\nduration = 10  # \u767d\u566a\u97f3\u6301\u7e8c\u6642\u9593\uff08\u79d2\uff09\nsample_rate = 44100  # \u53d6\u6a23\u7387\uff08Hz\uff09\n\n# \u751f\u6210\u767d\u566a\u97f3\nwhite_noise = np.random.normal(0, 1, size=(duration * sample_rate,))\n\n# \u64ad\u653e\u767d\u566a\u97f3\nsd.play(white_noise, sample_rate)\nsd.wait()  # \u7b49\u5f85\u64ad\u653e\u7d50\u675f<\/code><\/pre>\n
      \u6539\u826f\u5f8c\u7684\u7248\u672c<\/h3>\n
      \u7d93\u904e\u4e00\u4e9b\u4fee\u6539\uff0c\u6539\u826f\u6210\u6bd4\u8f03\u67d4\u548c\u7684\u7c89\u7d05\u566a\u97f3\uff0c\u807d\u8d77\u4f86\u6703\u6bd4\u8f03\u8212\u670d\uff1a<\/p>\n
      import numpy as np\nimport sounddevice as sd\n\n# \u8a2d\u5b9a\u53c3\u6578\nduration = 10  # \u767d\u566a\u97f3\u6301\u7e8c\u6642\u9593\uff08\u79d2\uff09\nsample_rate = 44100  # \u53d6\u6a23\u7387\uff08Hz\uff09\n\n# \u751f\u6210\u767d\u566a\u97f3\uff0c\u8abf\u6574\u70ba\u8f03\u70ba\u6085\u8033\u7684\u7c89\u7d05\u566a\u97f3\uff08pink noise\uff09\ndef generate_pink_noise(duration, sample_rate):\n    # \u751f\u6210\u767d\u566a\u97f3\n    white_noise = np.random.normal(0, 1, size=(duration * sample_rate,))\n\n    # \u61c9\u7528\u6ffe\u6ce2\u5668\uff0c\u4f7f\u5176\u6210\u70ba\u7c89\u7d05\u566a\u97f3\n    # \u7c89\u7d05\u566a\u97f3\u7684\u983b\u8b5c\u5bc6\u5ea6\u96a8\u983b\u7387\u964d\u4f4e\uff081\/f\uff09\n    b = [0.049922035, -0.095993537, 0.050612699, -0.004408786]\n    a = [1, -2.494956002, 2.017265875, -0.522189400]\n    pink_noise = np.zeros_like(white_noise)\n    for i in range(3, len(white_noise)):\n        pink_noise[i] = b[0] * white_noise[i] + b[1] * white_noise[i - 1] + b[2] * white_noise[i - 2] + b[3] * white_noise[i - 3] - a[1] * pink_noise[i - 1] - a[2] * pink_noise[i - 2] - a[3] * pink_noise[i - 3]\n\n    return pink_noise\n\n# \u751f\u6210\u7c89\u7d05\u566a\u97f3\npink_noise = generate_pink_noise(duration, sample_rate)\n\n# \u64ad\u653e\u7c89\u7d05\u566a\u97f3\nsd.play(pink_noise, sample_rate)\nsd.wait()  # \u7b49\u5f85\u64ad\u653e\u7d50\u675f<\/code><\/pre>\n
      \u7d50\u8ad6<\/h2>\n
      \u767d\u566a\u97f3\u662f\u4e00\u7a2e\u795e\u5947\u7684\u8072\u97f3\uff0c\u5b83\u53ef\u4ee5\u5e6b\u52a9\u6211\u5011\u63d0\u9ad8\u7761\u7720\u8cea\u91cf\u3001\u589e\u5f37\u5c08\u6ce8\u529b\u3001\u5275\u9020\u5b89\u975c\u7684\u5de5\u4f5c\u74b0\u5883\uff0c\u751a\u81f3\u5728\u91ab\u7642\u4e0a\u63d0\u4f9b\u5e6b\u52a9\u3002\u7121\u8ad6\u4f60\u662f\u901a\u904e\u5c08\u696d\u8a2d\u5099\u3001\u61c9\u7528\u7a0b\u5f0f\uff0c\u9084\u662f\u81ea\u5df1\u7de8\u5beb\u7a0b\u5f0f\uff0c\u90fd\u53ef\u4ee5\u8f15\u9b06\u5730\u751f\u6210\u548c\u4f7f\u7528\u767d\u566a\u97f3\u4f86\u63d0\u5347\u751f\u6d3b\u54c1\u8cea\u3002\u8b93\u767d\u566a\u97f3\u6210\u70ba\u4f60\u751f\u6d3b\u4e2d\u7684\u5c0f\u5e6b\u624b\uff0c\u4eab\u53d7\u5b83\u5e36\u4f86\u7684\u5be7\u975c\u548c\u5c08\u6ce8\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u4ec0\u9ebc\u662f\u767d\u566a\u97f3\uff1f \u767d\u566a\u97f3\uff08White Noise\uff09\u662f\u4e00\u7a2e\u5305\u542b\u5404\u7a2e\u4e0d\u540c\u983b\u7387\u8072\u97f3\u7684\u6df7\u5408 … \u95b1\u8b80\u5168\u6587 →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[396,15],"tags":[450,452,455,453,456,447,454,449,448,451],"class_list":["post-372","post","type-post","status-publish","format-standard","hentry","category-tech","category-prog","tag-python","tag-452","tag-455","tag-453","tag-456","tag-447","tag-454","tag-449","tag-448","tag-451"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/hsiang.cc\/index.php?rest_route=\/wp\/v2\/posts\/372","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hsiang.cc\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hsiang.cc\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hsiang.cc\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hsiang.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=372"}],"version-history":[{"count":3,"href":"https:\/\/hsiang.cc\/index.php?rest_route=\/wp\/v2\/posts\/372\/revisions"}],"predecessor-version":[{"id":374,"href":"https:\/\/hsiang.cc\/index.php?rest_route=\/wp\/v2\/posts\/372\/revisions\/374"}],"wp:attachment":[{"href":"https:\/\/hsiang.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=372"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hsiang.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=372"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hsiang.cc\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=372"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}