{"provider_url":"https://hatena.blog","type":"rich","version":"1.0","width":"100%","height":"190","author_url":"https://blog.hatena.ne.jp/baba_s/","url":"https://baba-s.hatenablog.com/entry/2023/07/05/163349","provider_name":"Hatena Blog","description":"\u6982\u8981 ffmpeg ^ -i \"input.mp3\" ^ -af \"volume=2.0\" ^ -ac 2 ^ \"output.ogg\" -af \"volume=2.0\" \u3067\u97f3\u91cf\u3092 2 \u500d\u306b -ac 2 \u3067\u30e2\u30ce\u30e9\u30eb\u304b\u3089\u30b9\u30c6\u30ec\u30aa\u306b","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fbaba-s.hatenablog.com%2Fentry%2F2023%2F07%2F05%2F163349\" title=\"\u3010\u96d1\u8a18\u3011ffmpeg \u3067 .mp3 \u3092 .ogg \u306b\u5909\u63db\u3057\u3066\u97f3\u91cf\u3092\u4e0a\u3052\u3066\u30e2\u30ce\u30e9\u30eb\u304b\u3089\u30b9\u30c6\u30ec\u30aa\u306b\u3059\u308b .bat \u306e\u4f8b - \u30b3\u30ac\u30cd\u30d6\u30ed\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2023-07-05 16:33:49","image_url":null,"blog_title":"\u30b3\u30ac\u30cd\u30d6\u30ed\u30b0","categories":["\u305d\u306e\u4ed6"],"blog_url":"https://baba-s.hatenablog.com/","title":"\u3010\u96d1\u8a18\u3011ffmpeg \u3067 .mp3 \u3092 .ogg \u306b\u5909\u63db\u3057\u3066\u97f3\u91cf\u3092\u4e0a\u3052\u3066\u30e2\u30ce\u30e9\u30eb\u304b\u3089\u30b9\u30c6\u30ec\u30aa\u306b\u3059\u308b .bat \u306e\u4f8b","author_name":"baba_s"}