I could not find any answer to this online so here it is:
I am recording some events with the voice recorder, and taking pictures at the same time. But when I open the camera, the voice recorder stops recording and is giving me onscreen message that the file have been saved.
Just a guess- I am mostly sure the voice recorder stops because the camera likely is prepared to record video and takes priority access to the microphone over the voice recorder because it is the most recently opened app. Let me see if there is a way around this. You might need to disable permission for the camera to use the microphone, again a gueas... I can also check to see if there is a good app for recording sound that can still do so if the camera is opened. Not all apps are equal. Give me some time and I'll give you a more in depth answer.