You’re welcome – yup, it’s on a thread so it doesn’t block the UI or the audio driver, but tbh the implementation decision on the level metering method was made over five years ago before I launched the first beta of OpenEars, and unlike most of the API it didn’t get any special scrutiny in the 2.0 update (just because it’s never raised any bugs or issues and its implementation is quite brief), so it could stand for me to reexamine and simplify it.