An anonymous reader quotes a report from The Verge: Amazon is trying to make its Alexa voice assistant sound more humanlike. Up until now, the female-sounding voice maintained an even, monotone cadence whenever speaking, but with Amazon's new Speech Synthesis Markup Language that the company introduced this week, Alexa can whisper, vary its speaking speed, and bleep out words. Developers can also add pauses, change the pronunciation of a word, spell a word out, add audio snippets, and insert special words and phrases into their skill. The Verge notes that "the language markups are [only] available to developers in the U.S., U.K. and Germany." Amazon will also be hosting a webinar on May 18th on the new code.