For software I use Volumio. Hardware options are:
Rpi3 with Ian's I2S adapter
Odroid C1+ with Ian's Isolator
Software versions of Volumio are different (but latest) for both.
The setup was working correctly, with no problems at all. Strange that it just went silent on chaning the playlist. Music source change was from 48KHz 32bit to 44,1KHz 16bit. No errors in software, keeps playing, just no audio.
Rpi3 with Ian's I2S adapter
Odroid C1+ with Ian's Isolator
Software versions of Volumio are different (but latest) for both.
The setup was working correctly, with no problems at all. Strange that it just went silent on chaning the playlist. Music source change was from 48KHz 32bit to 44,1KHz 16bit. No errors in software, keeps playing, just no audio.
I checked the outputs of McFIFO (J15) and the story is the same. There is voltage for SCK, but none for LRCK and SD.
At the same time there is voltage on the McFIFO input (J8). All three are OK: SCK, LRCK, SD.
Does this mean that the fault is on McFIFO board?
Well, you can try and check the isolator chip, if there is voltage on the input but not the output of the chip then that's probably gone bad.
Ah ...did you switch the ribbon cable, sorry if you have been asked all this already. Also any voltage regs such as LT3045s before your DC inputs? Just discovered a fault in one of mine giving intermittent current.
This is going to be a really stupid question but where do I connect this fifo buffer into an existing DAC?
Conceptually you want to add it just before the DAC chip, however depending on a DAC it may not be a simple bolt-on mod.
Can you help me figure out where I would need to connect it on my Audio-GD NFB-1 module?
sorry I know those aren't the best pictures, my phone is crappy.
sorry I know those aren't the best pictures, my phone is crappy.
I'm afraid it's not that simple. You generally need to have access to the schematics or reverse engineer the design to know where to tap in, if that's even possible.
That sucks, they refused to send me schematics last time I asked.
Reverse engineering shouldn't be too terrible difficult. What is it that I am looking for in the design?
Reverse engineering shouldn't be too terrible difficult. What is it that I am looking for in the design?
Easier said than done but this board needs to be inserted on the I2S serial bus, considering the DAC chip operates in I2S mode anyway. I don't have a real hands on experience with it, so this is just from a theoretical perspective.