In article 12iq8c55slnivedgg69jjakin8g14s3fkp@
4ax.com, says...

On Sat, 28 Jan 2017 13:55:23 -0800, Electric Comet
wrote:


i guess that shop noise from machines is mostly white noise

but with compute power as it is i wonder if it is possible
to sample the white noise and cancel fast enough so that i
cannot hear it

or at least cancel most of it by analyzing the predominant noises
based on previous samples

Yes it is possible.

I suppose that among the many other things of
which Electric Comet is unaware is that a major
audio manufacturer has noise cancelling headsets
in their third or fourth generation of
production, available off the shelf at Best Buy.