FLAC 转 OGG
把 FLAC 音乐重新编码成 OGG Vorbis，体积大幅缩小，音质差异却几乎听不出来。
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To
FLAC
Lossless compressed audio — CD quality at roughly half the size of WAV. The archival format of choice for music collections.
OGG
A free, open audio format using the Vorbis codec. Popular in games and open-source software.