What is this: It is not possible to start recording while another application uses the audio?

[AC Question]

What is this: "It is not possible to start recording while another application uses the audio"

Every time I access the app "Camera" (Android default) to record a video the following message appears: "It is not possible to start recording while another application uses the audio"

 

[B. Diddy]

Re: What is this: "It is not possible to start recording while another application uses the audio"

Welcome to Android Central! Which phone?

This could be due to Google Now set to have "Ok Google" Detection work "From any screen." Turn that switch off, and see if it works now.