I hate to nag, but we’re using the term “proof” way to loosely here. Don’t you agree that sighted, subjective impressions are not proof of anything?
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We’re caught between a rock and a hard place on the subject of “proof”. Seems there’s what you would describe as “objective proof” (external validation) whereas David is relying on “personal conviction” (internal proof). Each is legitimate on its own. Objective proof is here for review, while the other awaits some means of eventually testing its validity. Many is the conjecture or theory that falls into the latter category.
I fall into this latter form of personal conviction, as I’m willing to go on the adventure into the unknown. If anyone remembers the Florida “dog tracks”, I’m that ever eager greyhound chasing after the speedy mechanical lure (rabbit). I know I’ll never catch it, but keep pushing on. My hobby is my addiction…
which transport were you using before this solution?
If it’s “internal”, it’s not proof of anything, since it applies to one single individual. “Proof” is something that establishes a fact (beyond reasonable doubt), so it must imply objectivity and general acceptance, otherwise anyone could create their own “alternative facts”. Let’s stop splitting hairs. If you don’t think something constitutes proof, it’s fine, as long as you don’t take that as proof of the opposite.
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Sorry but the Earth was flat until Aristotle and Eratosthenes posited, and later Magellan’s voyages circumnavigating the globe, proved it. So, just because we’ve not way to measure what many of us are perceiving doesn’t mean it’s not a real. But if that’s your position, I don’t have Archimedes lever to move you…
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That’s an excellent argument against relying on senses. People thought the Earth was flat and not moving because that’s how everybody perceives it. It took measurements to arrive at the mind-boggling conclusion that it is round and rotating and going through space at over 67,000mph. Just think about that when you trust your ears and dismiss measurements.
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Personally, I’m not dismissing anything, especially not given my new theory, but I’m short on time to test it with the holidays approaching. Can someone please do a quick check of my Diretta-Penrose-Hameroff conjecture? You only need some MRIs, quantum SQUIDs, supercooled chambers, a few fresh brains, and, yes, a little bit of perseverance and hope!
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@Andrew_Stoneman Have you changed the IP-adresses of the corssed link between the Diretta Host and the Diretta Target, so that they are in a total other range than the rest of you network? I think that that is very important in the case of a SOtM sMS-200 set. YMMV.
Greetings, Frank.
Hi Frank, I’m not sure what/how to do that, I’ve got a fixed IP between Host and Target
Host; 192.168.1.187
Target: 192.168.1.188
Or similar - it’s not switched on at the moment
I think the Host’s assigned IP is something like 192.168.1.189
Netmask is common at 255.255.255.0 for all - I’m guessing - As per the (evolving) SOtM setup instructions
Very happy to learn how to do it properly if the above isn’t correct
Many thanks
Andy
No, it was never flat. That’s the point. A hypothesis isn’t proof, it’s simply an idea or belief, i.e., a thought process with no supporting evidence. You simply can’t use “internal” proof as evidence.
No one is arguing that perceptions aren’t real to the individual. Sailors were terrified that they’d fall of the edge of the world. But that didn’t make the flat earth reality.
Likewise, suggesting that humankind hasn’t discovered something that will alter our knowledge is a flawed argument, too. There is no hidden realm in Antartica either. It’s mythology, nothing more.
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@Andrew_Stoneman
Hi Andy,
So apparently, your ip_range of the home network is 192.168.1.xxx with a mask 255.255.255.0.
This range should be used to connect your, I presume, your eth1-port of the Diretta Host to your home network.
But the eth0-port, which will be used to feed the Diretta Target via a crossed ethernet cable, should be in a total different segment, let say 192.168.200.x
Then your Diretta Target IP-address should also be in that segment.
Ex. eth0 of the Diretta host: 192.168.200.1
eth0 of the Diretta Target 192.168.200.2.
Both have to be configured manual with, apart from the IP-address, only the mask 255.255.255.0. So NO gateway and NO DNS for those ports.
If you want to connect to the Diretta Target afterwards, you simply have to connect your PC to the eth0-port of the Diretta Host, and put the IP-address of your pc manually to ex. 192.168.200.3 with again the mask to 255.255.255.0.
The big advantage by doing the configuration in this way: only pure audio-packages will flow to the Diretta Target without broadcast and all other stuff that is polluting your network. So your Diretta Target network-port, and thus CPU, will have very little to do but treating only audio-packages. This will make the work of the processor even lighter.
I hope my explanation is understandable, otherwise just ask.
Kind regards, Frank.
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@mjw I appeal to your humanity! My hidden post above was a legitimate suggestion of a theoretical explanation for @stevebythebay and his idea that current measurements are not sufficient for Diretta’s audio success. Orch-OR, under development for decades by the esteemed Roger Penrose (Nobel physics, 2020) and Stuart Hameroff, implicates quantum microtubules in phenomenal consciousness. My suggestion is that Diretta may become quantum entangled with the human brain and therefore transfer low-noise impressions directly into our consciousness.
It’s a beautiful idea, if true, and certainly not hateful or inappropriate according to community guidelines!
This isn’t SPAM! It’s a theory…moderators, let’s stick to some standards!
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Wonderful, many thanks Frank
Mikael also kindly gave me some pointers - I’ll be making the changes shortly…
Very exciting!
I love all stuff, it’s far better than cleaning records 
(BTW this is me thinking I’m funny, not a dig at the venerable LP)
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I feel strongly that this is correct. Given that, we can arrive that it is correct.
@ExUnoPlura - Did Diretta stumble on this by happy accident or do believe they some how intentionally engineered the entanglement?
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I adopted Audiolinux as OS for both my i7 NUC server and RPi4 in 2023, and then implemented Diretta in the traditional way (NUC as both Roon server and Diretta Host, RPi4 as Target) in early 2024.
Before all of that, NUC ran ROCK and endpoint used DietPi or VitOS.
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Thank you very much! This is the comparison I’ve been waiting for, as the MU1 has been widely praised but not available to me for demo.
When David proposed this project, I already had a second, unused RPi4 and the necessary software licenses, so it was just a matter of acquiring a decent power supply. My speakers and listening room could make good use of the Grimm, but not my budget…
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Our level of enjoyment related to any activity is controlled by our brain and varies each and every time. Our senses feed our brain which in turn transforms that information into degrees of pleasure or pain. We are easily influenced by our expectations and we are easily convinced that “a” sounds better than “b”. Blind tests confirm this over and over again. IF IT SOUNDS GOOD TO YOU…LEAVE IT ALONE AND BE HAPPY!!!
We are starting to drift seriously off topic here people!
Let us at least try to stay true to the thread basis.
Hi @denniswaugh and @Frank_M,
I am catching up on the thread after the recent flurry of activity, and I didn’t want to let your reports slip by without a shout-out. It’s been fun catching up on your results.
What I love about both of your setups is that they validate the architecture independent of the specific hardware or OS:
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Dennis (Post 276): You proved that the “Host + Target” separation works beautifully with SOtM hardware, providing a “balanced/relaxed presentation” that beat a single-PC setup.
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Frank (Post 363): You proved that the same benefits (“astonished with the improvement”) apply when using GentooPlayer.
This confirms that the “Diretta Effect” isn’t about a specific magic script or a specific Raspberry Pi board—it’s about the fundamental benefit of offloading the heavy lifting (Host) to create a quiet, isolated environment for the endpoint (Target).
@Marian — also, a belated thank you for catching that edge case regarding the enu1 interface name on some USB adapters back in Post 211! That is a helpful find for anyone else building with non-standard adapters.
Happy listening, everyone!
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I could have missed it but are there any tests comparing the noise/quietness/etc of a Diretta target endpoint on an RPi vs RAAT or NAA endpoint on the exact same hardware? While a Diretta target endpoint on RPi maybe indeed be quiet, has it shown to be quieter than say NAA on NAA OS? Which is also highly tuned for minimal cpu, low noise, etc.