Progisus
Headphoneus Supremus
Further to ARC. Checking roon community…. ARC on Android is resampled to 48k. It could change with future versions. Otherwise it is a great app imho.
Astell&Kern A&ultima SP3000
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They are not doing any integration. They are most probably doing a resampling themselves and they just need to disable it and let the device decide whether it is required or not, just like the Qobuz app (of course, it is very highly unlikely to hear a difference from a non-resampled version).
You might be OK with the company abusing the market position. I am not. Anyway, off topic...
Hadn't noticed this!
At any rate, ARC is a bit of a game changer. My previous criticism of not being able to do more than push play and change songs with the Roon endpoint implementation is now void.
Mate, they are a business that is, very likely, not yet profitable. As a lifetime subscriber, I couldn't be happier to have Roon on the go or Roon in general.
Roon is the main reason for my taste in music expanding a great deal beyond what I used to listen to. To each their own.
"They are not doing any integration"- sorry but no, wrong again. Try and read about things a little more before making such conclusive comments.
rlw6534
Headphoneus Supremus
No MQA support either (with ARC).
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They don't have to do any integration for an application to avoid resampling. 48 kHz resampling is most probably their own resampling to bypass the Androids own, whereas they don't have to do that on a DAP. Just like Qobuz application.
Roon ARC is downloadable from GPS, so no specific integration is necessary.
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SP3000 not having a formal integration with Roon would have meant no ARC. In other words, having a certification in place is a prerequisite.
Untrue. My iPhone is definitely not certified but I run Roon ARC on it and bypass my work’s streaming service content filtering
arftech
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From the Roon website:
“Roon Ready devices all integrate customized versions of Roon’s RAAT streaming technology directly into their devices, for seamless integration with Roon.”
https://roonlabs.com/roon-partner-programs
What is RAAT?
https://help.roonlabs.com/portal/en/kb/articles/raat
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cheznous
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I’m sorry to be critical but this has made the load up time worse. It was 1min 45 sec now over 2 mins. The problem seems in folder view. You first see the internal drive. No sd card. Then internal drive disappears, spinning circle. Eventually both appear. Same 1 tb card takes 45 sec on SP2000. Something wrong here.
Here it is clearly written. "ARC shares Roon’s mobile implementation of RAAT". It does not need any specific integration / certification with any player. And as I mentioned before, it assumes that all Android players will resample, although most of modern Android DAPs today don't have such a problem. That is why we have this silly 48 kHz resampling for Android devices with Roon ARC.
https://help.roonlabs.com/portal/en/kb/articles/arc
For Android, the answer is more nuanced. ARC shares Roon’s mobile implementation of RAAT, which uses Android's AAudio framework to deliver an audio signal to the operating system on your device.
Each Android device has a native sampling rate, determined by the operating system or device vendor. If we deliver audio to the device at any other sampling rate, it will be resampled by the system mixer, possibly introducing "bad" signal processes and audio impurities.
To prevent the operating system from interfering with audio quality, Roon detects the native sampling rate of your device and delivers the audio in that format. On most Android devices, this is usually a multiple of 48kHz.
If you would like to pursue the highest audio quality possible on Android, a USB DAC will sometimes yield a higher sample rate than the native rate of the Android device.
https://help.roonlabs.com/portal/en/kb/articles/arc
Can I achieve Bit-Perfect Playback with ARC?
On iOS, we’ve confirmed bit-perfect output to USB DACs supporting DoP playback, MQA DACs, etc.For Android, the answer is more nuanced. ARC shares Roon’s mobile implementation of RAAT, which uses Android's AAudio framework to deliver an audio signal to the operating system on your device.
Each Android device has a native sampling rate, determined by the operating system or device vendor. If we deliver audio to the device at any other sampling rate, it will be resampled by the system mixer, possibly introducing "bad" signal processes and audio impurities.
To prevent the operating system from interfering with audio quality, Roon detects the native sampling rate of your device and delivers the audio in that format. On most Android devices, this is usually a multiple of 48kHz.
If you would like to pursue the highest audio quality possible on Android, a USB DAC will sometimes yield a higher sample rate than the native rate of the Android device.
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rlw6534
Headphoneus Supremus
And that is why Roon is decidedly DAP unfriendly, why not simply add options for higher sample rates and MQA support (similar to a DAC):
They actually don't have to ask the native resolution on an Android DAP but just set the frequency / bit-depth they need and that is it. This is how the Qobuz application is, for example, able to play bit perfect, at the correct sampling rate. I have verified several manufacturers like iBasso, FiiO and Hiby and they all set the Android parameters correctly and also the kernel drivers are configured correctly. What Roon is doing should only be valid for mobile phones and "not audio focused" Android devices and on such devices resampled or not - it doesn't matter. This is really silly as all major Android based music players are known to not have this limitation.
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