Roon uses OpenSL ES to accomplish audio playback on Android.
This is primarily for convenience--Audiophile quality playback on Android is still in its infancy.
For an in-depth overview of the Audio Configuration in Roon, check out our Audio Setup Basics
Format Support Notes
By default, we set the "Max Sample Rate (PCM)" and "Max Bits Per Sample (PCM)" settings to 48kHz and 16bit, respectively.
Some Android 5.0+ devices can support higher playback rates (and many others can't). This default was a conservative choice that maximizes compatibility with the widest range of devices.
We've had good luck with up to 24/96 on recent Nexus devices. If you want, disable the limits in audio settings and see what happens. If that doesn't work out for you, flip back to the defaults.
FAQ: What Android devices can I use Roon with?
Roon can run on many Android devices that meet the following requirements: ARM or x86 based Android 5.0 or higher Supports OpenGL ES 3.0 Android devices that are at least 8 inches run the full Roon interface. Tablets smaller than 8 inches run an ...
Audio Setup Basics
Accessing Audio Settings To access audio settings, first enter Roon's main settings screen, then choose the Audio tab. Inside the Audio tab, you'll be presented with a list of audio output devices, grouped by type, and in some cases, by which ...
What is Audio Analysis and how is it used? During audio analysis, each file in your library is analyzed in order to extract information about their audio content. Data extracted during audio analysis is used for several purposes: Volume Leveling ...
MUSE - Precision Audio Control
MUSE - Precision Audio Control (DSP) gives you tools that can potentially create loud or damaging sounds. Begin by experimenting at low volume levels until you are confident that your settings produce the desired effect. If you experience unwanted ...
Roon Advanced Audio Transport (RAAT)
What is RAAT? RAAT (Roon Advanced Audio Transport) is the backbone of Roon's audio distribution technology. It is designed to support a wide range of software and hardware applications without format support restrictions or quality compromises. It ...