build: Stop installing libxml.m4
ffmpeg -i file.mp3 -lavfi showspectrumpic=s=1200x600:mode=combined:color=viridis output.png这样就生成了 file.mp3 这个文件的频谱图，分辨率是 1200x600，生成的图片名字叫 output.png，使用的配色方案是 viridis。
，这一点在体育直播中也有详细论述
2026-03-02 00:00:00:03014294010http://paper.people.com.cn/rmrb/pc/content/202603/02/content_30142940.htmlhttp://paper.people.com.cn/rmrb/pad/content/202603/02/content_30142940.html11921 国网浙江电力 电暖“浙”里启新程 赋能共富谱新篇
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In 1874, Fanny Angelina married physician and bacteriologist Walther Hesse, an investigator of air quality and, specifically, air-borne microbes. In the Winter of 1880-81, Hesse became a research student with Koch in Berlin and experienced firsthand the difficulty of growing microbes on gelatine and the other growth media used at the time.