For those concerned about unexpected downconversion, we could force Roon to downconvert all audio to the iPeng endpoint to 16/44 before sending, right? That seems like an ideal solution for a wireless endpoint anyway.
Well, as long as âwirelessâ means WiFi you can pretty much use any format you want (OK, raw PCM at 384 kbps with your server also on WiFi and several players playing simultaneously could at some point become a stretch but thatâs probably a special case).
If âwirelessâ means remote streaming over cellular then downsampling or even mp3 encoding probably makes sense.
Iâve been using this exact same setupâitâs stellar.
Synology > iPad Pro 10.5" > Audioquest Nighthawk / 64 Audio V6-Stage
Sometimes I introduce the Oppo HA-2 if I have the desk space for it.
Hi, I downloaded this a few days ago after seeing a writeup on Darkoâs blog and am quite pleased.
I do have an an issue in that enabling Roonâs DSP causing some stuttering - itâs rock stable with DSP off. Anyone else having an issue here? Would love to use the convolution filter to get some DRC magic happening.
Does the convo filter work with other Squeezebox players? What sample rate?
Hi Joerg,
Just using 44khz streamed from Tidal, no upsampling - have not tried the conv filter w/ other Squeezebox players. Also noticed this w/ Roonâs parametric EQ as well (just the conv or PEQ by itself), so itâs not just that particular filter.
EDIT: I just tried rebooting my computer and it doesnât seem to be happening anymore. Iâll just chalk it up to something eating up too much processing power for Roon. Will update if I can have something more conclusive to reproduce.
If itâs of any help, mine appears exactly the same.
@Joerg_Schwieder, this is great, just great! The only thing Iâm missing (and I read the entire thread), is how I can keep the volume from jumping up to the max each time the next song starts. Never experienced this in Roon, but when playing on my (new) iPad with iPeng/Roon over my headphones, each time a new songs starts the volume goes all the way up and I have to adjust it. Hope this is a simple setting Iâm missing?
This should not be, sounds a bit like a volume feedback loop.
Could you quit iPeng (and kill it through the task manager, in case you have enabled âPreserve Connectionâ).
Then please check whether the volume on your iPad is set to 100% and if it isnât, turn it down one step.
Then try iPeng again.
Another question would be if you use any kind of replay gain (volume normalization).
Volume feedback loops habe been a problem with iPeng on LMS in the past but should be fixed there but Roonâs volume control might work somewhat differently and re-introduce the feedback loop.
This is horribly complicated because there are three different volume control mechanisms that need to be coordinated (actually four, if you also use replay gain).
Hi @Joerg_Schwieder, thanks for your quick reply! I did all that already, but it didnât work. Then I rebooted the iPad and at first, it didnât work either. Then, after some more restarting of both iPeng and Roon, all of a sudden it did work. Canât find a logical explanation, but seems like the rebooting of the iPad did it. I did this last night and tried again just now a few times, and it still seems to be working perfectly.
Regarding the volume normalization: I sometimes use Roonâs Volume Levelling, and suspect I will do even more often when listening to Roon with my headphones over the iPad. Are you suggesting Volume Levelling will be problematic for iPeng, or is your volume normalization a completely different thing?
+1 for iPeng. Have taken to listening to Roon in my bedroom via. my active speakers but the missus was getting a bit fed up of such âlate night listeningâ so I had to resort to headphones. Started looking into Roon Ready headphone amps/streamers, etc. without any real enthusiasm for spending another couple hundred quid. Heard about iPeng. Installed it. Made sure Roon was in logitech media server compatible mode. And, well, it just works. I now listen to my Roon library via. headphones plugged into my iPad.
Awesome job @Joerg_Schwieder!
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@koen Volume leveling would be the same thing.
Iâll have a look at that with iPeng.
I have to see how they do this. The Squeezebox protocol can either use that as a separate parameter (thatâs just multiplied with the ânormalâ volume level) or by modifying said normal volume level. The former should not cause any issues, the latter might make volume control even more confusing then it is anyway.
I know how it works with Logitechâs server and have tested it there but Iâm not sure how well itâs tested against Roon.
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Hi @Joerg_Schwieder, would be great if that could work without issues, many thanks in advance for looking into it!
Hi @Joerg_Schwieder
What of the different iPeng app shall I choose to play up Roon in my iPhone/IPad, I have a iPhone 6 and a iPad Air with iOS 11.0.2
So I can listen to Roon music with headphones�
Is it difficult to setup the iPeng, or?
Iâm using Allo USBridge with Sparky, but I hope thatâs no problem?
Best
Anders
You need iPeng 9 and the âPlaybackâ In-App-Purchase.
There should not be any additional setup required to use iPeng with Roon except for the In-App-Purchase which you can find in the App under âSettings->Enable Playbackâ.
You need the full Roon (not Roon Essentials), and you must not have a Logitech Media Server running on the same machine as Roon, these are the only limitations.
Besides that please read above on how to use the two Apps together, you need to switch Apps because with Roon iPeng is just a player.
Okay so iPeng 9, the one that is Squeezebox remâŚ
Or the iPeng upgrade bundle for iPhone?
You wrote the full Roon! I have the Core on my computer and my iPad/iPhone is the remote and I have a USBridge to my DACâs!
Yes, thatâs fine on the Roon side.
The upgrade Bundle is for people who already own iPeng Classic, if you donât youâd buy two Apps one of which doesnât run on iOS 11 and doesnât work with Roon so no, just iPeng 9.
Thanks 
for your great help.
I have iPeng 9 including the âPlaybackâ app, on my iPhone and iPad now!
Itâs working perfectly, so once again thanks a lot for your advice and help.
Best
Anders
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no ios 11?? ipeng bundle.
Iâm not sure I understand? iPeng 9 works with iOS 11 and there are upgrade bundles from iPeng Classic but we donât have a new App for iOS 11, iPeng 9 simply got an update (and will get some more for iPhone X etc.)