AUDIO
STARE
GLYPH
RARER
RAVEN
RAMEN
I figured it was -A-ER after 2 and so went straight to eliminating consonants with GLYPH, and then figured that RARER would be a good idea as multiple Rs were an option. That left me with RAMEN or RAVEN...
I actually went all the way to Yokohama (from Tokyo, not very far...) just to pull off a practical joke. I was in Tokyo working on Raman spectroscopy, and so I went to the Ramen museum as a joke, pretending to think that it was a Raman museum, hence the disappointed face. It was, in fact, really cool and it was a great day trip. The joke was foiled slightly, however, by the fact that it is spelled 'Raumen' on the outside of the museum...

