It can be seen as the acoustic equivalent of a visual logo.
Treatment for autism can be seen as the equivalent of schooling for the typical child.
It can be seen as the equivalent of a "development branch" that most other projects have.
Some of us are seen as the contemporary equivalent (but without the servants and cheap gin).
Von Schiller saw himself as the modern equivalent of a pharaoh.
Speeding up audio is seen as the equivalent of "speed reading"
Seoul's mayor is seen as the equivalent of any provincial governor.
Of course, many saw the annual camp as the equivalent of a paid holiday.
In this sense, they are seen as the supernaturaly equivalent of robbers.
In East Asia, air is seen as the equivalent of wood.