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发表于 2019-4-28 13:12:20
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The musIC 2 chip, like the original musIC chip, is a custom, cell-based ASIC. The first release of the chip was launched in 2010 and was built in the 90nm node. musIC 2 was just released and this time we used a 45nm process. Now we have almost 10 times the processing power of the original musIC chip. musIC process inside the chip has a set of extreme performance arithmetic tools, designed specifically -and uncompromised- for High-End audio playback and processing. As an example of its internal complexity and accuracy, I would mention its 2,180 hardware 128-bit multipliers running in parallel, its internal 256-bit datapaths, .. The concept behind the musIC process has been described earlier by reviews at The Audio Beat, for example. We use feed-forward processing to linearize the signal path, from DAC to audio output connectors. Feedforward can only be as good as the behavioural models used. Our behavioural models are extremely complex, and this is what esentially improved from the original musIC to musIC 2. Behavioural models considered many non-linear parameters in musIC 1 already. But in musIC 2, the models have grown over 10 times in size and with interdependencies with the rest of the conversion process, such as induced jitter effects, modulated noise floor, power supply induced effects, etc. Such a crazy model requires an associated processing power to run it in real time and with the mandatory accuracy. This is the reason behind musIC 2.
Besides, musIC 2 has a wide and deep set of features that are not used as of today, but will be unlocked over time... and a simple firmware update will continuously improve the product. We designed Atlantis DAC as a live architecture that keeps evolving in parallell to our knowledge and R&D activities. |
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