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。
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，这一点在新收录的资料中也有详细论述
As Adedeji Olowe, founder of Lendsqr, pointed out, "This is scarier than we're letting on. Billions of legacy microcontrollers exist globally, many likely running fragile or poorly audited firmware like this."，详情可参考新收录的资料
而原本 3500-4000 这个价位，也就是华为 nova、OPPO Reno、vivo S 这类「走量」的中端系列，将会显著受到这一波涨价的冲击，价格被迫提到之前的旗舰档，内存 8GB、存储 128GB 的手机可能还会重出江湖。，更多细节参见新收录的资料