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发表于 2012-5-24 14:03:31
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看了上面的很多大侠的回复，觉得真没意思。
第一，发帖是为了让大家认识新的dac。这台dac在技术上有自己的东西，分立的dac，bit perfect的设计，专利的数字滤波处理。
没想到一上来就被冠以故弄玄虚的名头。官网上那么多技术介绍自己不去仔细看，一句台湾人做的，直接鄙视了，不知道什么心态。
第二，这个dac关键的技术根本不仅仅是384K，只不过我把他官网的句子贴出来，才有人跳起来拿这个说事。相关的其他技术，我一并贴出来吧，要喷的看看清楚，拜托。
第三，只不过是介绍一下这个dac，我个人有点兴趣。不感兴趣的，请路过，就当没看过。
384K/32Bit Asynchronous USB Input
The world’s leading USB interface is capable of accepting genuine 384K/32Bit pulse code modulation (PCM) digital audio without artificial up-sampling. In addition, Da Vinci will soon be able to incorporate the new Direct Stream Digital (DSD64/128) format to its amazing interface, enabling listeners to use Da Vinci to play SACD discs or even higher definition music content.
Automatic LSB Correction
This corrects digital signals in their least significant bits (LSB) to make 100-percent accurate bit-perfect audio, while extending 16-bit signals to 24 bits or more.
In attaining Perfect Timing, Da Vinci applies the following proprietary technologies:
3-L Buffering
Da Vinci employs a three-layer elastic buffer between the music source and digital sample conversion that can completely decouple the speed fluctuation in the source. As a result, it can execute the music sample conversion in the most accurate core clocks.
Patent pending.
3X Clocks
Da Vinci uses three highly precise -166dB phase-error clocks, one dedicated to each family of music sampling frequencies. Thus, there is one clock for 44.1K, 88.2K, 176.4K and 352.8K frequencies; one clock for 48K, 96K, 192K and 384K frequencies; and a third clock for the USB interface.
Light Harmonic believes pristine analog output from an audio player also requires special treatment for the power supply and vibration control.
Power Supply
Da Vinci’s power supply is the cleanest possible. It starts with three dedicated R-Core transformers— one for digital circuits, one for analog circuits, and one for conversions. It also features six dedicated power circuits using the best capacitors available, and more than 40 super-shunt voltage regulators for digital interfaces, analog conversion, crystal clocks, (dual mono) analog output, and control circuits.
Specially developed “nano noise” circuits supply power to the digital clocks, and proprietary USB isolation circuits completely cut off any ground links between a music server source and Da Vinci.
Vibration Control
Da Vinci’s chassis is constructed from six blocks of aerospace-grade 6061-T6 aluminum shaped by digitally automated CNC milling machines. This provides exceptional vibration control as well as thermal stability, and RFI/EMI shielding. In addition, Da Vinci’s 61-pound weight effectively eliminates all possible vibrations from outside sources. |
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发表于 2012-5-24 10:50:06
发表于 2012-5-24 14:06:15
