{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftadaoyamaoka.hatenablog.com%2Fentry%2F2016%2F08%2F27%2F123525\" title=\"FFT\u306e\u30d4\u30fc\u30af\u3067\u306f\u57fa\u672c\u5468\u6ce2\u6570\u3092\u6e2c\u308c\u306a\u3044\u308f\u3051 - TadaoYamaoka\u306e\u958b\u767a\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","url":"https://tadaoyamaoka.hatenablog.com/entry/2016/08/27/123525","blog_url":"https://tadaoyamaoka.hatenablog.com/","title":"FFT\u306e\u30d4\u30fc\u30af\u3067\u306f\u57fa\u672c\u5468\u6ce2\u6570\u3092\u6e2c\u308c\u306a\u3044\u308f\u3051","provider_url":"https://hatena.blog","type":"rich","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/T/TadaoYamaoka/20160827/20160827115044.png","provider_name":"Hatena Blog","categories":["VocalPitchMonitor","FFT"],"author_url":"https://blog.hatena.ne.jp/TadaoYamaoka/","version":"1.0","published":"2016-08-27 12:35:25","blog_title":"TadaoYamaoka\u306e\u958b\u767a\u65e5\u8a18","width":"100%","author_name":"TadaoYamaoka","description":"\u56f2\u7881\u3070\u304b\u308a\u3060\u3063\u305f\u306e\u3067\u4e45\u3057\u3076\u308a\u97f3\u30cd\u30bf\u306b\u3064\u3044\u3066\u66f8\u304d\u307e\u3059\u3002Android\u3068iOS\u3067\u30ea\u30ea\u30fc\u30b9\u3057\u3066\u3044\u308b\u300cVocal Pitch Monitor\u300d\u3067\u306f\u3001\u57fa\u672c\u5468\u6ce2\u6570(\u30d4\u30c3\u30c1)\u306e\u6e2c\u5b9a\u306b\u81ea\u5df1\u76f8\u95a2\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3002\u57fa\u672c\u5468\u6ce2\u6570\u306fFFT\u306e\u30d4\u30fc\u30af\u3067\u6e2c\u308c\u308b\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u601d\u308f\u308c\u304c\u3061\u3060\u304c\u3001FFT\u306e\u30d4\u30fc\u30af\u3067\u306f\u6b63\u78ba\u306b\u6e2c\u308c\u306a\u3044\u3002 \u7406\u7531\u306f\u3044\u304f\u3064\u304b\u3042\u308b\u304c\u3001\u305d\u306e\u4e00\u3064\u3067\u3042\u308b\u5468\u6ce2\u6570\u5206\u89e3\u80fd\u3068\u30d4\u30fc\u30af\u306e\u95a2\u4fc2\u306b\u3064\u3044\u3066\u89e3\u8aac\u3059\u308b\u3002\u307e\u305a\u3001\u5358\u7d14\u306a\u5834\u5408\u3068\u3057\u3066\u3001\u97f3\u58f0\u30c7\u30fc\u30bf\u304c\u6b63\u5f26\u6ce2(sin\u6ce2)\u306e\u5834\u5408\u3092\u8003\u3048\u308b\u3002440Hz\u306e\u6b63\u5f26\u6ce2\u3092FFT\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b0\u30e9\u30d5\u306b\u306a\u308b\u3002 import numpy as np import matplotlib.pyplot as \u2026","height":"190"}