The PCM5122 has build in “hardware volume control”…thats what its used by the driver.
However from what I know the hw volume control is a still a software volume control done in the DSP.
Still we think that a proper hardware volume controller should be made (analog domain). We are working on it (relay attenuator that will work with all our DACs)
Thanks Johan!
That’s good, volume control in the analog domain would be appreciated on my end
But not sure I understood correctly, I personally would prefer an integrated solution not an add-on board to perform the volume control. But maybe you meant that anyway. I’d rather replace the current Boss, than having more interconnected components.
Looking forward to your progress!
Mike
I do not have a Boss, but have successfully streamed 384 content using the HifiBerry and IQaudIO hats (both also use the same PCM5122 chip) using DietPi. The caveat to this is that you have to explicitly enable the 384 kernel in dietpi-config --> Audio Options --> 384 Kernel. DietPi is very simple to setup, and you can find lots of information about this (and users) on the Roon forum.
Thanks Jim, but when you enable 384 in the DietPi kernel the board is no longer recognized by the roon software (or maybe by the driver.) At least it will no longer show as a client in the audio setup. See also http://dietpi.com/phpbb/viewtopic.php?f=11&t=1480#p6163
So the only thing remaining is, why does the roon on my dietPi with Allo Boss not update?
It is stil 1.0 (build 86) and it says “You have the latest version installed.”
Any ideas?
Build 86 is indeed the latest version of RoonBridge. It is DietPi that must be updated for the 384 kernel to work. If you read the linked post, this will be updated in DietPi v149 (not yet released), or you can update the DietPi kernel manually with the instructions given there.
This issue of 384 kHz compatibility has nothing to do with Roon or RoonBridge, which both support even higher sampling frequencies. It is a limitation of the version of linux running on your RPi. DietPi has updated their linux kernel, which now supports 384 kHz streams. It’s important to note that DietPi has no affiliation with Roon (it is, in fact, useful for many other applications on SBCs), but it’s a really simple way to get RoonBridge running on an RPi. The developer of DietPi (@Dan_Knight ) simply chooses to be active on this forum.
I understand - and maybe I should have opened an extra thread regarding the version of roon for RPi/dietPi.
Is there a page where you can see the latest version of the roon bridge SW for the different client platforms?
Finally the case for the Boss was available to order so I did so as well as the Boss. To my dismay the case was poorly packaged and was broken on arrival. So disappointed! @allo.com
Image looks on website good, can you confirm power input is mains voltage? Or is it a DC to DC converter ?
If it provides 240v to 19v then it would work for many of the other Digital amps out there as well as Volt, could be a popular item and pull more Volt sales.