I am working on voice interaction animation something like siri or google voice. Would be awesome if you give also some ideas
I am also in the process of looking for something like this.
Suggestion: take a look at the interface animations in the movie "Her", the squiggly line is used for voice interaction, errors, working states etc. Very cool:
I follow the designer Gleb Kuznetsov on dribble who is exceptional good in my eyes.
He tried something like this: https://dribbble.com/shots/3171495-Artificial-Intelligent-voice-recognition-exploration
Look no further. https://www.youtube.com/watch?v=qYM1RcrFr_o