New action for change pitch of audios being played (or even an action to change ALL the pitchs of all the audios), this could be nice to simulate slow motion (we can change the time but not the pitch of the audios)
I have been investigating and in order to do that in HTML5 the library howler have to be updated to the last beta (beta 5). It adds a new function named .rate that allow to change it with javascript.