TiltBrush uses GoogleVR audio regardless of platform, and if the platform SDK supplies audio.
AudioManager
uses GvrAudioSource
.
(GoogleVR is deprecated)[http://docs.unity3d.com/Packages/com.unity.xr.googlevr.android@2.0/changelog/CHANGELOG.html] to be removed in 2020.1.
WORK: Investigate replacement. See Issue 148.
The UnityEditor.XR.Management
plugin offers to remove legacy packages. See class XRLegacyUninstaller
.