Expose directly or with a wrapper
e.g.
VRCAudioSettings.GetOutputData
for
AudioListener.GetOutputData
or
VRCAudioSettings.GetSpectrumData
for
AudioListener.GetSpectrumData
The different between this and Audiolink is that this captures everything you would hear, including player voice or avatar sounds, and captures what you actually can hear rather than what is playing on a particular audiosource.