l*****y
发帖数: 337 | 1 Kmixer is the internal audio component of Windows that does the multi-
source mixing. It allows you to have multiple programs supplying audio
information, and it mixes them all together for playback. Kmixer also
handles your volume controls. Unfortunately, the mixing and volume co
ntrol has the end result of forcing resampling of all of your audio, c
ausing the magling of your audio. This isn't a good thing, as audio wa
nts to be played back in it's original format. This problem is the mai
n rea |
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b****g
发帖数: 4933 | 2 ☆─────────────────────────────────────☆
lechery (GIS) 于 (Mon Jun 20 10:38:14 2005) 提到:
在windows下面，要进行bit perfect播放，有两个障碍要越过
第一个是remix，第二个是resample
前面一个问题是windows 的kmixer造成的，kmixer是windows下来协调音频同步播放
控制音量，EQ的一套有损算法和界面组成的
通常的说法是，不支持kernal stream或者ASIO的声卡，
或者只要你用了WDM 类型的驱动
无论声卡有什么能力
kmixer一定会把bit perfect破坏，
数据在到达sound card之前就已经被kmixer处理过了，
kmixer背后的有损算法的SN是92db，小于CD
实际中，kmixer在16bit的数据流里面写一些垃圾数据，使得bit精度下降到14bit
还有一个原因可能是kmixer无法做100％的unity gain造成的
至于为什么kmixer不能老老实实的leave 44.1khz的stream alone呢？ |
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E*V
发帖数: 17544 | 3 why do you guys need networkmanager or knetworkmanger?
the first thing I do after install kde is to unsinstall kmixer and
knetworkmanager/networkmanager! |
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m******t
发帖数: 2416 | 4
+1. There is no point using either of them if not using wireless.
I still use kmixer though. It works neatly with the volume control
keys on my keyboard. |
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