Would this mean there was a difference in sound quality between WAV & FLAC? Surely best to use smallest possible FLAC files across the network. But if you’re worried, or OCD (as I suspect many of us are - myself included), just configure your router to prioritize traffic between your NAS or Roon core and your transport. But I struggle to believe how RAAT vs UPnP overhead on the base data rate could be a factor for anyone using a tethered network connection. And there may be other arguments for why transport and protocol may matter. Of course if you’re going wireless it’s an entirely different question. Our audio isn’t even using 0.5% of what a modern network can handle… Either way you’re talking single-digit megabits on hard-wired networks designed to comfortably handle gigabits! 10 Gbps or 10,240 Mbps on Cat 6 with the right hardware. Over ethernet cable? Not very taxing to any network built since the turn of the millennium! Roon does add some overhead, and that may be greater than UPnP, but neither is a very large difference as a percentage of the base data rate. According to the Roon CTO: “There’s some minor overhead for packet headers.” Hard to quantify “minor” but let’s agree that it’s less than 10% of the data rate. Not sure about this argument… let’s say you’re streaming 24 bits at 96 kHz, that’s about a 4.4 megabits per sec (Mbps) data rate (96kHz * 24 bits per sample * 2 channels)/(1024 bits per kilobit * 1024 kilobits per megabit). Pity, I’ll receive my new ND555 next Wednesday… The real question is : are the new streamers consistent with the load requirements of protocols like RAAT?Ĭonsidering that some of us seem to hear a difference in SQ in favour of UPnP, it seems that the new streamers are not correctly designed to be used with Roon like software. The answer is also quite obvious: the hardware needs to consistent with load needy protocols.įinally, the real question isn’t : does UPnP sound better than RAAT? What could be done, in the context of audio, to eliminate the impact of traffic heavy protocols? But are the ideas behind RAAT well implemented? It’s a closed protocol… Let’s suppose that inside is state-of-the-art code. The question is : do we need/want such a protocol? Considering the success of some protocols like RAVENNA (Pro) or RAAT (consumer), the answer seems to be yes. This thread is getting more and more interestingĬonsidering the functionalities RAAT offers it seems obvious that it is more complex then UPnP and therefore potentially generates more traffic (which means more hardware load).
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