release-quality-control.md

 [[_TOC_]]
 
+## rescources
+- virtual microphones to play audio files to BBB https://git.fairkom.net/martin.klampfer/audio-testing
+
+
 ## delay when switching channels
 - see https://git.fairkom.net/chat/fairblue/-/issues/115
 - setup
@@ -12,6 +16,8 @@
   - use different browsers (Chrome and FF behave differently with ICE)
   - delay after check mark may depend on other things (Windows vs Linux?)
 
+
+
 ## volume slider for listeners
 ### 2 persons
 - setup