May I ask why you ask? Didn't we post examples on how to fetch audio data ("capture") with openAL?
Think for you the most important question is: what works with vanilla/NG (and when "vanilla" - with current OS) and has the desired capabilities.
Most probably the existing solutions will just take care to wrap the audio system into the "brl.audio"-environment ("TSound", "TChannel" ...).
Next to asking what is "there" you should ask what these libraries are allowed to get used for ... in closed source, open source, commercial, free ... some of them might be not free for everyone! Especially Bass and FMod had some... commercial licences in the past (and even now? did not (bother to) check...).
For now I can say this:
Freeaudio: does not have record capabilities
SoLoud: does not have record/capture capabilties
MiniAudio: does have one - check
https://www.syntaxbomb.com/index.php?topic=5807.0bye
Ron