I’m trying to put together a Volumio system using the following components:
Sabre es9023 DAC that Michaelangelo suggested in his post back on Raspyfi (raspyfi.com/building-my-reference-dac/)
2.5" HDD (full of tasty lossless music, mostly ripped CDs in ALAC)
Pi-Supply power switch
16x2 LCD screen
I then need to find a suitable power supply with multiple rails and voltages, an amp (I currently have a OPA2132 DIY one I made a few years back which isn’t great) I’m thinking of getting an O2 for this). Finally a nice enclosure to house it all. This will then be a portable (albeit needing mains power) music centre which I can plug headphones into and block out the outside world!
I might look at including a battery to run it without mains as well so it could work in the car or in the garden.
I’ll post some photos and updates as I crack on in the proper section of the forum.
My current issue is getting the RPi to talk to the 9023DAC over I2S. The DAC in question doesn’t have a MCLK onboard so will not do asynchronous audio. Mike was using the XMOS USB to I2S board with his project, which provides the clock, but I don’t want to buy/use this board just to get the clock, when the Pi can now output the I2S itself.
Has anyone managed to find a way of generating the MCLK signal from an external source? Or is there a way to make a DIY clock using a crystal?
If anyone else is looking into this your thoughts would be appreciated. I currently have a nice shiny new DAC and no way of listening to it. I have been using a FIIO E17 so far which is ok, but I’m aiming higher.
Loving your work Michaelangelo.
P.S. Yes I am aware I am trying to build a huge ipod! But it will sound so much better!