Amazon is making Alexa sound more human with new options for developers to vary its speaking speed, volume, bleep out words, and even whisper. This is an extension of the Speech Synthesis Markup Language (SSML) that Amazon recently adopted. A couple of months ago, Alexa skill developers gain the option to use expressive words to give Alexa more personality. The new SSML options will allow Alexa users to have a “more natural voice experience.”