JohnSwenson wrote: > On sample rates, DSD etc here are my thoughts, the design I'm looking at > will go up to 384 as is, hardware wise. Whether it will actually go that > fast is going to be purely a software issue. As to doing DSD, a DSD over > I2S implementation may not be too hard, but I can guarantee it will not > be in Gen1. If it is decided to be a good thing, I will want to do a > separate test board (with just the DAC and what it takes to do the DSD) > to make sure it can be done without sacrificing the "normal" output. The > problem is that unless we add a separate set of output jacks the output > of the the DAC and DSD have to be muxed together to go out over the > single set of output jacks. I need to do some experimenting to make sure > it can be done well. > > On the board size, the picture from Norm is exactly what I was > envisioning for Gen1. One aspect missing here is that stuff is going to > be on both sides of the board. So not all connectors have to be lined up > next to each other on the same side. > > My original thought of 3x3 was based on an estimate of the board area > needed, it's not cast in concrete. I don't really want to make the board > too large, you actually get better results if you keep things tight in a > small board area. It can certainly grow if we need the space. > > I was envisioning that Gen2 would probably be a little larger than Gen1 > anyway, just to get all the connectors on there! > > Thanks Norm for the pictures, that helps to visualize what was in my > head. > > John S.
Wow, I am excited to see so many posts over this weekend! John and Norm great work so far, I am excited to see things heading in the right direction. As to the discussion over DSD, etc, I would agree with John, lets leave GEN1 as a prototype for design and testing of basic functionality as a player. We can work out the final details later for the GEN2 release and add all of the bells and whistles as needed. The pops and clicks do worry me a little. Non-ehci hardware I think would be a deal breaker and leave us in the same situation as the Pi. Lets hope it just need a few tweaks on the thread priority. ------------------------------------------------------------------------ dustinsterk's Profile: http://forums.slimdevices.com/member.php?userid=19649 View this thread: http://forums.slimdevices.com/showthread.php?t=97881 _______________________________________________ discuss mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/discuss
