release-quality-control.md

+## delay when switching channels
+- setup
+  - listener listens on `channel 1`
+  - interpreter speaks to `floor`
+- interpreter switches to `channel 1` and immediately starts counting seconds loudly
+- listener notes at which number they start hearing the interpreter
+- notes:
+  - :warning: there may be the delay after the check mark appears for the interpreter
+  - use different browsers (Chrome and FF behave differently with ICE)
+  - delay after check mark may depend on other things (
+
+## volume slider for listeners
+### 2 persons
+- setup
+  - listener switches to `channel 1`
+  - interpreter speaks to `channel 1`
+- volume slider appears for the listener
+- listener moves the volume slider -> volume of interpreter changes
+  - max right the interpreter has max volume
+  - max left the interpreter is not audible at all
+
+
+### 3 persons
+TBD
+
+## clear interpretation state when disconnecting audio
+- setup
+  - listener `channel 1`
+  - interpreter speaks `channel 1`
+### A 
+- listener disconnects audio via `phone handset`-button
+  - interpreter voice stops
+- listener connects via `phone handset`-button
+  - listener UI is in `floor` channel for listening and speaking
+  - interpreter is not audible
+- listener switches to `channel 1`
+  - interpreter becomes audible
+
+### B
+- interpreter disconnects audio via `phone handset`-button
+  - interpreter voice stops for listener
+- interpreter connects via `phone handset`-button
+  - interpreter UI is in `floor` channel for listening and speaking
+  - interpreter is audible **only** via `floor channel`
+- interpreter switches to `channel 1`
+  - interpreter becomes audible via `channel 1`
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