A simple Generator Noise for use when music would be too distracting.
Install PortAudio: brew install ..., yum install ..., apt install ..., pacman -S ..., pkg install ..., etc.
go get github.com/musl/gn
cd $GOROOT/src/github.com/musl/gn
make vendor commands
./cmd/gn/gn <options>
This assumes you have a $GOPATH setup correctly and that
$GOPATH/bin is in your path. Refer to go help gopath for more
information.
Beats the heck out of dd if=/dev/urandom of=/dev/dsp.