Interacoustics Equinox
The Equinox is a PC-based audiometer. It is a device that is simple to use because it is very intuitive. The advantage of Equinox is that it is scalable.
It is used to perform pure sound tests: air conduction, bone conduction. It allows you to display the masking information and compare different audiograms.
It also has voice. The latter can come from several sources: cd, microphone, wave files.