Audio 什么'；使用sox消除音频剪辑的最佳方法是什么？

我正在尝试将一些音频文件转换为机器学习的原始格式，我需要确保不会出现剪辑，因为我不希望它污染我的数据集

这个问题一直存在，但不幸的是，解决方案对我来说并不奏效

已经提出了几个选项来帮助缓解这一问题

--norm选项似乎工作得不太好

$ for name in *.au; do sox --norm ${name} -c 1 -r 44100 --bits 8 ${name}.mono-sr41000-ss8.raw; done
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?

-v 0.99选项似乎工作得不太好：

$ for name in *.au; do sox -v 0.99 ${name} -c 1 -r 44100 --bits 8 ${name}.mono-sr41000-ss8.raw; done
sox WARN rate: rate clipped 11 samples; decrease volume?
sox WARN dither: dither clipped 8 samples; decrease volume?
sox WARN rate: rate clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN rate: rate clipped 12 samples; decrease volume?
sox WARN dither: dither clipped 9 samples; decrease volume?
sox WARN rate: rate clipped 6 samples; decrease volume?
sox WARN dither: dither clipped 5 samples; decrease volume?
sox WARN rate: rate clipped 10 samples; decrease volume?
sox WARN dither: dither clipped 11 samples; decrease volume?
sox WARN rate: rate clipped 3 samples; decrease volume?
sox WARN dither: dither clipped 3 samples; decrease volume?
sox WARN rate: rate clipped 2 samples; decrease volume?
sox WARN dither: dither clipped 2 samples; decrease volume?
ubuntu@ip-10-217-154-40:~/data/genre/genres/blues$ for name in *.au; 

G选项似乎效果最好。但是，即使使用此选项，也会出现一些剪裁

$ for name in *.au; do sox -G ${name} -c 1 -r 41000 --bits 8 ${name}.mono-sr41000-ss8.raw; done
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 2 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?

将-G和--norm组合使用比单独使用两者更糟糕

$ for name in *.au; do sox -G --norm ${name} -c 1 -r 44100 --bits 8 ${name}.mono-sr41000-ss8.raw; done
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 2 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?

更新：进一步减少音量似乎可以消除剪辑。
这是最好的解决方案吗

$ for name in *.au; do sox -G -v 0.95 ${name} -c 1 -r 44100 --bits 8 ${name}.mono-sr41000-ss8.raw; done
sox WARN dither: dither clipped 1 samples; decrease volume?
sox WARN dither: dither clipped 1 samples; decrease volume?

$ for name in *.au; do sox -G -v 0.9 ${name} -c 1 -r 44100 --bits 8 ${name}.mono-sr41000-ss8.raw; done