https://bit.ly/3qCEHHn
这是一篇alpha audio写的dac 501评测,
请点到第三部分 The sound.
里面有一段话:
Volume
Now there’s one thing we’ve noticed:
if we adjust the volume via the Weiss,
we see in Roon that it’s no longer lossless.
We’ve asked Daniel about that:
(从weiss调整音量, Roon显示并非无损,
我们询问Daniel有关这事)
Alpha: I noticed that ROON mentions that the
signal path is not lossless, because of the
volume control. Is that true?
(Alpha: 我注意到Roon指出讯号路径并非无损,
因为音量控制, 这是真的吗)
Daniel Weiss: This is correct.
If you rise the volume to 0.0dB then it changes to lossless.
Anything else than 0.0dB changes the bits.
(Daniel: 是真的,
你拉高音量在0.0dB, 就是无损,
任何对音量的调整, 都会改变bits)
**中文部分是我简单的翻译**
这就很神了, 数位音量控制有各种方式(手段),
第一次看到变成非无损的,
所以下面就有人留言啦,
难道weiss dac 501控制音量就是直接砍bits吗?
由于是很严肃的问题,
Daniel Weiss有亲自回复, 讲得很多(明白),
请将这篇评论卷动到最下方, 自行看Danial的回文囉.
信不信Daniel的说法, 各位自由心证 XD
我个人是半信半疑啦, 但最大的问题是买不起dac 501啊QQ
又, Daniel Weiss应该是Weiss的老板吧?
附注:
Danial Weiss对此问题的回答
Hello Mr. ooooo
A volume control is by definition not lossless.
It has to change the bits in order to change the volume of the signal.
Lossless means that no bits are changed,
so a lossless volume control is not possible.
Best Regards,
Daniel Weiss