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\u5b9f\u88c5\u4f8b\u306e\u30d2\u30f3\u30c8\u3068\u3057\u3066\u3001Python\u3067\u306flibrosa.stft\u3068amplitude_to_db\u3001display.specshow\u3092\u7d44\u307f\u5408\u308f\u305b\u3001y_axis='log'\u3084x_axis='time'\u3092\u6307\u5b9a\u3057\u3066\u5bfe\u6570\u5468\u6ce2\u6570\u8ef8\u3068\u6642\u9593\u8ef8\u3092\u8868\u793a\u3067\u304d\u308b\u3002\u521d\u5fc3\u8005\u5411\u3051\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u306f\u3001\u30e1\u30eb\u5c3a\u5ea6\u306a\u3069\u3078\u306e\u5909\u63db\u3067\u8868\u793a\u306e\u5f62\u3092\u7c21\u7565\u5316\u3059\u308b\u8a71\u984c\u3082\u7d39\u4ecb\u3055\u308c\u3001\u7528\u9014\u306b\u5fdc\u3058\u3066\u53ef\u8996\u5316\u306e\u8ef8\u3084\u89e3\u50cf\u5ea6\u3092\u9078\u3079\u308b\u3053\u3068\u304c\u793a\u3055\u308c\u3066\u3044\u308b\u3002\u5b9f\u7528\u8a18\u4e8b\u3067\u306f\u3001\u30b9\u30da\u30af\u30c8\u30ed\u30b0\u30e9\u30e0\u3092\u4f7f\u3046\u3068\u4e8c\u3064\u306e\u56f3\u3092\u4e26\u3079\u3066\u5dee\u5206\u304c\u898b\u3048\u3084\u3059\u304f\u306a\u308b\u70b9\u3082\u5f37\u8abf\u3055\u308c\u3001\u6bd4\u8f03\u306e\u9053\u5177\u3068\u3057\u3066\u306e\u4fa1\u5024\u304c\u8aac\u660e\u3055\u308c\u3066\u3044\u308b\u3002[15][14][3]\n\n\n\n
\u6700\u5f8c\u306b\u3001\u54c1\u8cea\u306e\u8981\u70b9\u3092\u6574\u7406\u3059\u308b\u3002- \u6642\u9593\u6ce2\u5f62\u306f\u958b\u59cb\u2014\u7d42\u4e86\u306e\u6642\u9593\u8ef8\u3092\u6b63\u3057\u304f\u4f5c\u308b\u3002- \u30b9\u30da\u30af\u30c8\u30eb\u306f\u7247\u5074\u3001dB\u8868\u793a\u3001\u9069\u5207\u306a\u5468\u6ce2\u6570\u8ef8\u3092\u8a2d\u5b9a\u3059\u308b\u3002- \u30b9\u30da\u30af\u30c8\u30ed\u30b0\u30e9\u30e0\u306f\u7a93\u9577\u3068\u30aa\u30fc\u30d0\u30fc\u30e9\u30c3\u30d7\u306e\u30d0\u30e9\u30f3\u30b9\u3001\u7a93\u95a2\u6570\u3068ENBW\u88dc\u6b63\u306e\u7406\u89e3\u3001\u30ab\u30e9\u30fc\u30b9\u30b1\u30fc\u30eb\u306e\u59a5\u5f53\u5316\u304c\u9375\u3067\u3042\u308b\u3002- \u6bd4\u8f03\u306fPSD\u306e\u6b63\u898f\u5316\uff08\u0394f\u30fbENBW\u88dc\u6b63\uff09\u3067\u516c\u5e73\u306b\u3057\u3001\u6761\u4ef6\u3092\u660e\u8a18\u3059\u308b\u3002- \u89e3\u91c8\u306f\u4e09\u70b9\u30bb\u30c3\u30c8\uff08\u6ce2\u5f62\u30fb\u30b9\u30da\u30af\u30c8\u30eb\u30fb\u30b9\u30da\u30af\u30c8\u30ed\u30b0\u30e9\u30e0\uff09\u3067\u6574\u5408\u3055\u305b\u3001\u6642\u9593\u3068\u5e2f\u57df\u306e\u4e21\u9762\u304b\u3089\u78ba\u8a8d\u3059\u308b\u3002\u3053\u308c\u3089\u3092\u5b88\u308c\u3070\u3001\u6ce2\u5f62\u3068\u30b9\u30da\u30af\u30c8\u30ed\u30b0\u30e9\u30e0\u306e\u53ef\u8996\u5316\u306f\u3001\u6545\u969c\u4e88\u77e5\u306b\u304a\u3044\u3066\u300c\u3044\u3064\u30fb\u3069\u306e\u5e2f\u57df\u304c\u30fb\u3069\u308c\u3060\u3051\u300d\u5909\u5316\u3057\u305f\u304b\u3092\u78ba\u304b\u306a\u6839\u62e0\u3067\u793a\u3059\u5f37\u529b\u306a\u9053\u5177\u306b\u306a\u308b\u3002[11][6][10][1][8][2]\n\n\n\n[1] https:\/\/qiita.com\/y__h\/items\/8363caf27debf51b4144<\/p>\n\n\n\n[2] https:\/\/qiita.com\/s_yukke\/items\/c84a84b4ae4291a2fdf8<\/p>\n\n\n\n[3] https:\/\/service.ai-prompt.jp\/article\/ai365-305\/<\/p>\n\n\n\n[4] https:\/\/acp.amivoice.com\/blog\/2023-03-06-094430\/<\/p>\n\n\n\n[5] https:\/\/logicalyze.com\/fo-spectrogram-beginners\/<\/p>\n\n\n\n[6] https:\/\/www.jstage.jst.go.jp\/article\/jasj\/72\/12\/72_764\/_pdf<\/p>\n\n\n\n[7] https:\/\/www.cradle.co.jp\/media\/column\/a282<\/p>\n\n\n\n[8] https:\/\/www.zhinst.com\/jp\/blogs\/how-control-spectral-leakage-window-functions-labone<\/p>\n\n\n\n[9] https:\/\/www.analog.com\/media\/jp\/landing-pages\/web_lab\/tnj-081.pdf<\/p>\n\n\n\n[10] https:\/\/www.onosokki.co.jp\/HP-WK\/eMM_back\/emm182.pdf<\/p>\n\n\n\n[11] https:\/\/www.mish.co.jp\/wp-content\/uploads\/2020\/08\/Application-Example-34_10032019-1.pdf<\/p>\n\n\n\n[12] https:\/\/www.owon.co.jp\/yl.asp?NewsID=564<\/p>\n\n\n\n[13] https:\/\/labo-code.com\/python\/coherence-pahse\/<\/p>\n\n\n\n[14] https:\/\/qiita.com\/purple_jp\/items\/7c91a05c547615e9ab89<\/p>\n\n\n\n[15] https:\/\/note.com\/nishika_inc\/n\/n609db9be08b7<\/p>\n\n\n\n[16] https:\/\/note.com\/lebris22\/n\/n857675bcdfd4<\/p>\n\n\n\n[17] https:\/\/www.onosokki.co.jp\/HP-WK\/eMM_back\/emm150.pdf<\/p>\n\n\n\n[18] https:\/\/community.cadence.com\/cadence_blogs_8\/b\/jcid\/posts\/start-your-engines-logic-electrical<\/p>\n\n\n\n[19] https:\/\/www.onosokki.co.jp\/HP-WK\/eMM_back\/emm80.pdf<\/p>\n\n\n\n[20] https:\/\/www.sp.ipc.i.u-tokyo.ac.jp\/~saruwatari\/SP20_05.pdf<\/p>\n\n\n\n
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