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About nbpf

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  1. As mentioned, I have installed shairport on a minimal Raspbian Lite installation (MinimServer, upmpdcli), I do not use dietPi or other pre-installed distributions. For installing and setting up Raspbian and then MinimServer, upmpdcli and shairport, follow the respective instructions starting from https://www.raspberrypi.org/documentation/installation/installing-images/. It is very difficult to provide better instructions than the ones that already exist and that have been carefully written and updated over years!
  2. Sure, I am actually very happy with the DigiOne Signature on a very low power RPi3. Still, it would be nice to have a audiophile mainboard that can be extended with clean USB outputs, clean S/PDIF outputs, high quality Ethernet and wireless interfaces according to one's specific needs. The USBridge is a first step in the right direction but I very much hope that a more modular design will emerge at a certain point.
  3. I do not have a USBridge Sig but wth RPi3 I never had any problem reading from a USB SSD or HDD and sending out to a Shiit Eitr 24bits/192KHz files through the same bus. I currently shut down the USB bus of the RPi3 that hosts my DigiOne Signature and stream from a server to the RPi3 via wireless. Also in this case, streaming of 24bits/192KHz files works flawlessly. I have never tried extensive tests of streaming via LAN and sending out to the Eitr via USB thus using the same bus, however. The above remarks apply both to the standard kernel and to a self compiled RT kernel. At the moment I am not using the RT kernel anymore. I think that the RPi4 has an Ethernet on-board, not Ethernet-over-usb but I might be mistaken.
  4. I am not calling the products half baked because they do not suit my usage. The DigiOne Signature perfectly suits my needs and still I think it's an half backed product. The new USBridge Sig is half baked because, as you point out, adding an S/PDIF output to the board is an incidental plus rather than a well designed modular extension. And because it involves yet another adapter cable and a different connector than the original USB C connector of the DigiOne Signature. Perhaps half-baked is not a fitting expression here because all these products work quite nicely by themselves. And I can see the difficulties of a more modular design. Still, I believe that Allo could and should do better. Thus, if they do not manage to manufacture durable, modular products, they should at least offer users the possibility of sending back their old Allo boards and have them recycled in a meaningful way.
  5. Perhaps they will eventually come out with a new DigiOne Signature board that better fits the board of the USBridge Sig. Or with yet another different small board. We will see, time will tell ...
  6. Sure, but an external antenna would allow to use the USBridge Sig in environments where a wired connection is not possible or to use it as an integrated server + renderer solution. I am afraid that the USBridge Sig is another half backed solution like the DigiOne Signature. Great devices if they happen to fit one's need but at the same time missed opportunities to build a really modular platform with upgradeable components and a future proof design.
  7. But if you connect a USB stick or a SSD to the USBridge Sig you might still have a DC converter, I'm afraid. Generally speaking, I very much like the Allo approach. But I do not understand why they have decided not have WiFi on board in the USBridge Sig. This is, in my view, completely nonsense and the main reason why I am not going to order a unit. I also do not like the fact that in the case for the USBridge Sig + DigiOne Signature they have yet another kind of connector with yet another cable connecting this connector to the USB-C connector of the clean side. This is lack of modularity and rather poor engineering, in my view. Just my two cents, of course.
  8. I always shutdown my RPis with 'sudo poweroff' after remote ssh login. That said, I have had 2 RPi devices running 24/7 for a couple of years and they survived a number of accidental power cuts without any trouble. Still, I tend to keep an image of their micro SD card, just in case ...
  9. I have a DigiOne Signature but it is mounted on a RPi, not on a USBridge Sig, and I do not use the Allo GUI. I use upmpdcli as a renderer and the RPi is headless. I can control the output of MPD (to the DigiOne Signature only, to a USB DAC only, to both, etc.) on the fly with mpc or ncmpcpp.
  10. Not to my ears but I have a rather poor hearing and I find it very difficult to test system configuration options in terms of sound quality. But the low energy consumption makes it possible to power the RPi side with an high quality low power PSU.
  11. Right, thanks for pointing out the lack of onboard WiFi, I hadn't noticed it! This is definitely a deal breaker for me as I typically stream over WiFi and I shut down the USB bus on the RPi that hosts my DigiOne Signature. Too bad, I would have liked to try out the USBridge Sig ...
  12. Right but the DigiOne Signature consists of two boards: the main board and the child board. I would expect that only the main board needs to be mounted on the top of the USBridge Sig but perhaps I am wrong. Anyway, I'll wait for Allo to clarify and perhaps until then we will know more from USBridge Sig users.
  13. ... sure and the USBridge Sig + DigiOne Signature could be hosted in a nice enclosure. Still, I am not sure whether one would be able to turn off bluetooth, Ethernet, USB, HDMI, etc. as with the RPi. Also, would one need to add both DigiOne Signature cards to the USBridge Sig or just the top one? As usual, Allo's documentation is very incomplete ...
  14. Let me make a first attempt at answering my question: with an RPi I can * switch off the internal audio (dtparam=audio=off in /boot/config.txt) * turn off bluetooth (dtoverlay=pi3-disable-bt in /boot/config.txt) * disable HDMI (sudo /opt/vc/bin/tvservice --off in /etc/rc.local) * switch off the USB bus (with echo '1-1' | sudo tee /sys/bus/usb/drivers/usb/unbind) This brings down the energy consumption of the RPi to about 200 mA. Would I be able to do the same with the USB Sig? Do you see any other potential disadvantages of the USB Sig against the RPi as an host for a DigiOne Signature?
  15. Has anybody compared the new USBridge Sig to a standard RPi3 (or RPi4) as a host system for the DigiOne Signature? Are there obvious advantages/disadvantages using an USBridge Sig instead of a RPi? Thanks, nbpf
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