Many thanks.
Not wishing to be pedantic but which image did you use?
Again, thanks.
naa-430-x64ramfs.7z for UP Gateway
You can see there is RPi4 image there also and others
And pretty much any Intel computer can run that for NAA OS. Doesn’t have to be UP
If you had an Intel laptop or NUC or whatever, you could try. It boots from USB stick so doesn’t affect your Windows installation.
2 Likes
No mention at all in the specs about NAA …
1 Like
Features a Pi Compute Module 4
I loaded NAA OS onto a CM4 and it worked fine.
So you can load your own microSD card (assuming it is accessible and does not void warranty - good to ask Holo and check)
I wish they would put a CM4 inside a DAC
1 Like
On a “regular” CM4 I’ve no doubt it works, we’ll see if the Holo Red will work too … it is anyway quite curious that specs do not mention NAA nor UPNP at all
The photo CM4 looks just like mine. Are there different types of CM4’s ?
The motherboard is custom and there could be the need of some specific driver … who knows …
For such high sample rates, typically companies just use USB output of the network card
Even T+A’s NAA streaming DACs use the network card’s USB output right @jussi_laako ?
So if it uses CM4 USB output, shouldn’t be an special driver drama - should be just like their Holo DACs I’d assume. I wouldn’t imagine they make life harder for themselves
If it uses the I2S pins or other bus elements, on ARM platforms you need device tree files (that Raspberry calls overlays). Because these platforms don’t have things like ACPI that is used on PC to describe the hardware configuration.
Technically, these are part of kernel source and thus should be made public. But often that is not happening.
USB is likely connected through straight, so the USB port probably works out of box with NAA OS. What may not work are the S/PDIF, AES and I2S outputs if these use the RasPi I2S.
1 Like
Another interesting streamer… after the USBridge Sig, the RPI4 (under PiCore) or the ZenStream (despite its old kernel/OS).
This Holo seems to gather the best for the audiophile / geek by integrating in addition a quality power supply and a number of inputs / outputs for the most demanding.
According to GoldenOne “RED has the lowest jitter of any DDC/Streamer I’ve tested. First thing to beat the Wavedream NET”
1 Like
I’m confused about its place in the Holo lineup. 3 and May have excellent USB in, much easier to use than I2S, coax, or AES because it avoids the annoying PLL sync. That is, the non-USB outputs are redundant for current Holo DACs. Sure, they may be useful for other DACs, but that seems like a detour from a product lineup that has so far been focused.
1 Like
At last! I have HQP Embedded running on a spare PC with a Ryzen 3700X, Nvidia GPU, 64gb of RAM. I can now compare Desktop vs Embedded performance (I have always preferred the Embedded interface from when I had a Small Green Computer server)
Thanks again for your guidelines.
Victor
2 Likes
I have had both HQPlayer Embedded and Desktop on dedicated servers feeding an NAA (ultraRendu) and experienced zero difference in sound quality between the two….
1 Like
I agree with current Holo DACs, just use any USB source because they all have USB galvanic isolation
But maybe this is the first step to simply have an ethernet input on (future) DAC
Which would be nice - one less box, one less AC power supply in the system
I agree, but a manufacturer cannot simply produce a device for its own ecosystem or even with a proprietary link.
I use USB and will continue to do so in order to benefit from the highest level of DSD processing. But nothing prevents me from testing HDMI as well.
" who can do more can do less" Aristote !
1 Like
Yes, DietPi doesn’t support that model at the moment. But since there’s a Debian 10 “Buster” image available, it is possible to install networkaudiod package on it.
For NAA use, you may want to disable all graphical stuff on the Debian image though.
1 Like
I have the R4S. Comes in a fanless case.
Runs headless 64-bit DietPi NAA nicely.
Powered by 5Vdc
1 Like
Hi Jussi,
I saw UpBoard Gateway can do DSD1024. Can the RP4 run NAA image do DSD1024 to your Holo Spring 3 L2?
I have tried to connect my Holo Spring 3 L2 (old 1024 firmware) l to my Ubuntu HQP Desktop on MSI Z690m either diectly through mainboard USB2 or USB3 port without success with DSD1024 or PCM1.5M. DAC show correct DSD1024 or PCM1.5 but the sound started with white noise follows with heavily distorted sound. It seem like the data was sent wrongly or the DAC use wrong clock frequency.
DSD512 or PCM768 run without issue on the same firmware though
Thanks