wrong media type association for wav files

[Teo]

Steps to reproduce:
- In Nautilus or in the Desktop, double click on a .wav file

Expected:
- should open in the dafault audio player (Rhythmbox or whatever it is called)

Observed:
- it opens in the default video player (Totem)

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: gnome (not installed)
ProcVersionSignature: Ubuntu 3.13.0-37.64-generic 3.13.11.7
Uname: Linux 3.13.0-37-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Oct 24 14:56:17 2014
InstallationDate: Installed on 2013-10-11 (377 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
SourcePackage: meta-gnome3
UpgradeStatus: Upgraded to trusty on 2014-05-24 (152 days ago)

[Vamshi Balanaga (fazerlicourice)]

Bug still persists on Ubuntu 16.04 (dev).

[Vamshi Balanaga (fazerlicourice)]

Even though the default application is set to Rhythmbox in the settings menu.