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無損壓縮格式,在華人地區一直都存在APE、FLAC哪個格式比較好的文章,可惜的是幾乎所有的教學文章,都只告訴你2種格式都是無損壓縮,卻不說清楚主要差異
在哪裡,連HDCLUB置頂的介紹也都如此,令人莞爾。
除了FLAC是自由軟體;APE是一個商業軟體之外,最大的差異並不是壓縮大小,而是
容許錯誤的能力,APE是0
這裡引述老外的文章
http://www.hydrogenaudio.org/forums/index.php?showtopic=33226&view=findpost&p=316496
Monkey's Audio
Replaced bytes: exits with error
Deleted bytes: didn't even try
FLAC
Replaced bytes: continues decoding when used the -F switch and reports error while decoding and at the end. Only sign of corruption was a hiccup.
Deleted bytes: continues decoding when used the -F switch and reports error while decoding and at the end. Only sign of corruption was a hiccup.
而FLAC官方網頁也提到FLAC的特點之一:
Error resistant: Because of FLAC's framing, stream errors limit the damage to the frame in which the error occurred, typically a small fraction of a second worth of data. Contrast this with some other lossless codecs, in which a single error destroys the remainder of the stream.
小弟最早接觸APE大概是2002年,當初轉的APE檔,在多次升級硬碟後,已經有部份檔案直接葛屁,所以之後的APE,通通都改成FLAC了。
順便提一下很多人關心的音質,在Sennheiser HD800盲測下,完全聽不出APE、FLAC、WAVE的差異,可能是小弟木耳,同時器材也不夠好吧。 |
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