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发表于 2021-11-5 01:45:48
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22.5792M/44.1khz=512
24.576M/48khz=512
10M/44.1khz=226.7573696145120
10M/48khz=208.3333333333330
以下来自grimm audio的技术说明文档，不怎么推荐10m用于音频领域。请自行翻译：
Unfortunately, a 10MHz frequency standard doesn’t improve things. None of the usual audio rates are simply related to 10MHz. It would have been infinitely more sensible to derive audio rates, or multiples.
Because of the fact that the two frequencies are not simply related there is a lot of scope for intermodulation. The greatest common denominator between 44.1kHz and 10MHz for instance is 100Hz. It is exceedingly difficult to make a synthesizer with such a ratio that doesn’t have significant jitter products at 100Hz intervals. If the aim of the undertaking is to minimize jitter, bringing in a 10MHz laboratory standard is a surefire way of making things much more complicated and much more expensive.
The lowest jitter clock you can ever get is a really good crystal oscillator that puts out the frequency you want (or an integer multiple) directly. |
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楼主
发表于 2021-11-10 12:14:51
