i’m not the expert on that, but i’m pretty certain you’d have to record it with another application (for example audacity). it might also be possible by using a .wav-writer implemented as a vst effect.
i recommend this.
there are no modules that can record audio as wav, mp3… in vvvv in the current.
i wished a module like “writer (DShow9.Audio)” but no need since VSTs are available on it.
and i need to say i love you vvvv devs.