一般wma/mp3都是 "128 kbps"的
那就正好1MB /分钟
1GB的mp3就能存1000分钟的128kbps质量的音乐
1 byte = 8 bits
128kb/s
= 16kBytes/Sec
= 960KB/ Min
~= 1MB / Min
一般wma/mp3都是 "128 kbps"的
那就正好1MB /分钟
1GB的mp3就能存1000分钟的128kbps质量的音乐
1 byte = 8 bits
128kb/s
= 16kBytes/Sec
= 960KB/ Min
~= 1MB / Min
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