Blocking these unacceptably intrusive audio ads on tumblr requires the following two lines to be added to your custom adblock filter:
||atlas.cdn.yimg.com$domain=tumblr.com
||yimg.com^$domain=tumblr.com
Make sure you close you tumblr tab and reopen it after applying them.
I spoke too soon. Looks like some are still getting through =/
This is a deal breaker, tumblr…