Here's my take on the history here:
http://robert.ocallahan.org/2017/09/some-opinions-on-history...
From the beginning it was obvious that JS sample processing was important, and I tried hard in the WG to make the Web Audio API to focus on that, but I failed.
Back there I followed a bit the discussion and your alternative spec, which was really interesting. If I remember it well, that will take lots of work and you were the only one working to get it implemented on FF. Are there any plans to get back to that? Maybe as an independent API for JS sample processing by workers only, in parallel with WA? Congratulations on your past efforts and thanks in advance for your answers.