Yes, I want to use digiface without a computer

Yes, I know.
I look forward to the release of digiface usb that can be used without a computer

Sorry to say that, but the Digiface USB is probably the wrong choice of interface for your needs.
Do you have loudspeakers with digital inputs? If yes, what protocol do they accept (SPDIF, AES/EBU, ADAT…)? Maybe it would be the far simpler solution to use analog connections to feed the loudspeakers and use an analog mixer for the different sound sources. But this are only my thoughts. It’s difficult to understand what you want without more details about your (desired) gear setup.

I can’t see this interface being changed anytime soon and I’d guess no firmware would allow this.

two computers and a computer-audio-interface - but without using a computer...
nice try,
it's a joke, a hoax, eine Presse-Ente

This is a personal wish for digiface usb.

As you know, analog cables can be stained.

The link below is a comparison of cable sounds.

https://youtu.be/maqPNA658qk

I just want to deliver the sound of the ddc to the speakers.

So that it doesn't deform.

So I said the wishful thinking about digiface usb.

Windows PC and Mac core audio have different sounds.

The basic sounds are different.

For some music, Mac's mid-to-low tone goes well with it,

and
There are times when the high notes of PC are good.

The basic chipset is different.

I just want to change it more comfortably.

For example,
ufx+ has the functions I want.

Standalone + usb arc volume Control or function key + Standalone routing

but
I need more input and output terminals s/pdif or adat

" What is the benefit of "not using a computer" ? "

have many advantages

window Cubase or Adobe Premiere <----┐
mac logic or Final Cut<------------------ ┼----->[ digiface usb ]-----------------> [speaker]
mobile dac or streaming<----------------┛        (an independent electricity)

The advantage of this system is that
From one reliable monitoring system
You can see the results of various devices.

                                                         [ preamp digitale outputs ]
                                                                           │
window Cubase or Adobe Premiere <----┐                ↓
mac logic or Final Cut<------------------ ┼----->[ digiface usb ]----------------> [dac custom]---->[speaker]
mobile dac or streaming<----------------┛        (an independent electricity)

window Cubase or Adobe Premiere <----┐                                                    ┌--> [speaker 1]
mac logic or Final Cut<------------------ ┼----->[ digiface usb ]----------------┼-->[speaker 2]
mobile dac or streaming<----------------┛        (an independent electricity)   ┖-->[speaker 3]

In all your connection examples you have at least one computer, and even if you are convinced that going optical from your computer to the Digiface will yield better results than usb you can still control the Digiface USB via one computer via USB.

I can tell you, it's nonsense:
I once did a short test which was to find out, if a Fostex adapter which simply converts SPDIF coaxial to optical and vice versa, has an influence to the audio quality. It was a fair priced 2nd hand buy. So I connected the Fostex over optical cables to my Babyface pro and did a simple direct cable loop from the output to the input on the coaxial connectors. I played a stereo audio file from Logic pro and recorded the returned signal from the optical input on the Babyface to a new track. Having the tune in full length, I then adjusted the two tracks 100% sample accurate to each other in the timeline and flipped over the phase on one of the two tracks to do the so called null test. Guess what: when I started the playback, there was nothing more to hear nor visible on level meters, it was absolutely cancelled out by itself.
So neither the USB cable connection, nor one of the involved units (Babyface pro, Fostex adapter) nor the optical cables nor the coaxial cable had even the smallest influence to the audio signal. It was just still the same, sample per sample! And I simply used a cheap hi-fi chinch cable, even not a 'real' SPDIF coax cable.

I’m really not surprised about that.

So basically what you are saying is that we can't reliably do a null test the way I did because of SteadyClock FS? I am perfecty happy about that, but at the same time that's too bad for the op;-)

This

I would also like the possibility of standalone operation. I use it to interconnect HW using ADAT. I have two racks each with audio interface and effect and separate audio interface. And in between those three Digiface USB to glue it together.

I would love to use it without computer. Just switch the gear on as it is configured/routed. And in case I need different rooting, just run the computer and change it in TotalMix.

Yes, I could interconnect everything without using Digiface, but in case of rerouting, I would have to reconnect several ADAT cables. In TotalMix it may be prepared in advance and it is fast and easy change there and back. Also easy to experiment with configurations....

So, I would love to have possibility to save choosen setup to Digiface or even if Digiface remembers its last setup would be great. I do not understand why RME has not implemented it. :-(((((

Mics, instruments                                                                               Mics, instruments
      I                                                                                                         I
      I                                                                                                         I
Presonus                                                                                             Fireface 802
Eventide Eclipse          <-------------------> Digiface <------------------>  Eventide H8000
Lexicon                                                        ^
                                                                   I
                                                                   I
                                                                   I--------------------------> Fireface UC -------------> Monitors and Phones
                                                                                                              ^
                                                                                                               I
                                                                                                               I
                                                                                                       Mic, Instruments

Does anyone know what is the default routing in Digiface USB? I mean, what is the routing when switched on without a computer?

I would love to use it standalone, if default routing allows, so.

It is such a pity it does not remember last routing used, like Fireface UC does.... Even better would be, if next version could store eight snapshots and one could plug in ARC USB into it to controll unit using this controller in standalone mode.

I will try, it would be great if inputs are routed to appropriate outputs, if standalone... I could reconnect my gear and it would work without PC connected.

I just checked in TM and if I make total reset of mix for Digiface, submixes for outputs have faders on inputs set to zerro, only playback faders are full up. I do not know if it is default state of HW or just default state TM goes to for any device.... So, it is not sure, that inputs are routed to outputs in standalone mode....

I have to check, if I get any signal on ADAT outputs in standalone mode.

I know. IMHO, it should have been described in manual, what the standalone routing is like.....

Yes. It looks, signal is not routed from ADAT input to ADAT ouput, if standalone. It could have been set so and it would have been working standalone. But I guess, at least that could be made by firmware update, if it is not possible to remember last routing....

I have set Digiface as the masterclock, all three devices did show lock, but no signal went to other device using Digiface in between. When computer switched on, signal has reached to device, and also after switching off PC, till I disconected Digiface from powered USB hub.

Maybe I made some kind of mistake and it works.....

It should be more than obvious that the DF USB has not been designed to be used in stand-alone mode. No power socket, no such chapter in the manual, no such mode ever mentioned anywhere. And it will not come as firmware update because the hardware simply can not do it.

Well a lot of soundcards are hoaxes then I guess. Standalone mode is a very common and useful feature. :-D

Seems like it, since I don't own one of these yet (was planning on it but this might be the dealbreaker) I wonder. What happens when the computer is disconnected. Does it load some kind of default setting for TotalMix? What about snap shots? Can these be used from the computer or does everything preset like have to be loaded from file for each "snapshot"?

Does that also mean that the Arc can't be used with this one. I was thinking of the first two rows of memory buttons. If the Digiface does not have any memory locations I guess these would be useless at least.

Or maybe all the TotalMixFx processing is performed by the computer? Then of course it makes perfect sense it can not be used in standalone mode. A bit confusing since TotalMixFx is often refered to as a kind of standalone mixer.

What do you mean? I was under the impression that (some) RME Interfaces will work perfectly fine as static mixer solutions without being connected to the computer and that I will be able to make some changes like change snapshots and things like that without hooking up the computer. According to this page the Arc and som UFX interfaces will work in "standalone mode" but it seems a bit complicated to find out exactly what that means and if it's only UFX+ and UFX II that has this standalone mode, maybe not UFX III?
https://www.rme-usa.com/arc-usb.html
"ARC USB and UFX+ / UFX II in Stand-Alone Mode
In stand-alone mode of Fireface UFX+ / UFX II a fixed set of functions is activated on the keys"

I'm pretty sure the DSP is not executed on the computer in standalone mode at least? ;-)
Also I don't get why it's called TotalMixFX even in those cases where the FX are unavailable as for Digiface USB. Same name but not same functionality, strange.

I come from Motu and was planning on trying RME but it's unclear in which cases I will get the same standalone functionality as I have with Motu.

Of course TotalMix runs on the interface itself (DSP). At least Fireface 400 & 800 & 802 (FS), UC, UCX, UCX II, UFX, UFX+, UFX II, UFX III and probably some other models have configureable standalone modes. Some with only one, some even with up to six different configurations. Babyface models have a separate standalone mode which cannot be configured on the computer (it’s halfway comparable to Motu 8pre which behaves different with or without connection to a computer).
There are all manuals available on the RME website. You simply can load the one for the interface you are interested to buy and find many useful informations in there.
And yes, at least all the models with the front panel display can easily be used as 'static' mixer. On models without display it’s a bit harder but still doable imo.

Digiface must have some kind of DSP inside. Routing and mixing calculations run fine on it without computer connected. One must set DF using computer running TM. When this is done, one may switch off computer and run DF standalone under the condition it stays powered.... I use it in such a way.

IMHO, it could run standalone, but only with one factory preset. Present preset does not route ADAT inputs to ADAT outputs. So, pure standalone functionality is not possible, one has to initialize DF after being switched on using computer with TM.