I find this stream (stuffed through some Sennheiser HD25 SP headphones to block everything else out) improves my productivity considerably! http://bluemars.org/

I find this stream (stuffed through some Sennheiser HD25 SP headphones to block everything else out) improves my productivity considerably! http://bluemars.org/cryosleep.php http://bluemars.org/cryosleep.php The noise of humans or machines doesn't however.