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http://www.r3mix.net/
看看ANALYSIS那篇吧。
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你是想說那些圖說明什麼?
那些圖是在frequency domain下的東西,我們根本不知道psychoachoustic model的比較...
MP3要比品質就應該在time domain下比才準,最好的方法就是用聽的..
當然那些圖也有一些訊息,就好比作者說的..
to deliver a reproducible test
with general conclusions. So, for example, if there is a frequency cut-off visible on the test signal, there also will be one with all music you encode.
and no quantitative comparison, such as, for example, measuring and quantisizing the amount of deviation from the test signal at certain frequencies. Such deviation will differ with every different piece of music you encode, so there is no use for such tests.
現在我是說128kbit時lame根本打不贏mp3enc31...
sound forge 5 和cool edit 2000 的encoding 不好嗎??
版主: DearHoney