Would love some feedback. Non-audible does not work on some devices though. There is for example this weirdness that in Safari, the higher part of the audio spectrum is not captured even though it is with other browsers [0]. Interested if someone here has any idea what could be the issue?

[0] https://github.com/ggerganov/ggwave/issues/5

There's a possibility that it's a deliberate restriction to prevent the audio interface being used for data (i.e. exactly what your library does)

It would be pretty easy to use this a for malicious reasons, such as device tracking