Hi all,
I saw a video from ESS Sale Office(China) recently, ESS engineer Mr. Zhang said that the 9018 isn't 1bit DSD DAC chip, and DSD to PCM conversion will be done in 9108.
I also got other opposite informations from computeraudiophile.com about this. Mr. Michal who is the designer of Mytek, here are his words:
"Ok,the way DSD is implemented in our DAC:
DSD 1 bit> digital DSD 3 pole filter @ selectable 50,60 or 70kHz>6 bit output > 6 bit DAC. The filter, standard in all sacd players (typically analog) helps to filter out of band noise inherent n DSD. Such filtering requires multiplication which produces result in more bits than the 1bit input. It's actually in away better than 1 bit because all info is preserved but 6 bit conversion is more accurate than 1 bit. It's better to keep it at 6 bits than round it to 1 bit, for example. We are still talking about 64xFS stream of 6 bit data , NOT any PCM."
According to Mr. Michal's descriptions, in my understand the ES9018 does 6-bit SDM and the DSD SR is still 2.8M(or 5.6M), no any PCM.
The answers added to my confusion. Who is right?
Thanks!
