08/05/17 10:30:28 2R/7nOWJ0
>>812
$ lame --noreplaygain test.wav
$ cp test.wav.mp3 test-1.wav.mp3
$ mp3gain -k test.wav.mp3
$ mp3gain -s d test.wav.mp3
$ lame --decode test.wav.mp3
$ lame --decode test-1.wav.mp3
$ sha1sum test.wav.mp3.wav test-1.wav.mp3.wav
4027ca4208495681712d33a3b7bb080c684420fe test.wav.mp3.wav
4027ca4208495681712d33a3b7bb080c684420fe test-1.wav.mp3.wav
可逆だね