If users are posting unrelated help questions in “Audiobook Production”, the words “Community Forum” are not going to stop them. They may even think that makes it a good place to post where users who solved their USB mic not being recognised will reply.
I must disagree with the apparent implication (by omission) that the other Special Interest Groups are not “Community Forums”.
Why not put “Community Forum” in the title for all these boards? Something like “Community Forum for Special Interests”? Even then I don’t see it as especially obvious what we really mean by that. The subtitle text seems to me to be the place to spell out who we want in each “community”.
Why don’t you use “Creating” anywhere?
Is this word anyhow forbidden in English?
(e.g. The lord as creator of the universe and audio books )
The title is appropriate as it is.
The subtitle shouldn’t repeat “produc-”.
Something more striking like “From Recording to Submission” or “From Narration …” if this sounds better to you.
As an alien, I can say that “Community” won’t tell me anything, at least not if the problem should be general or Audacity specific.
I would exclude anything with “Voice-over”, it does more belong to the Podcast or even Video (not a special group yet) section since it involves most of the time mixing several sources such as original voice and translation.