Depend on the medium.

When it is air the direction is omnidirection

Simply explained, it has directionality.

That depends on the directionality of our pinna (ear cup) which is front localisation.

Marlene A. Segal has written:

'Organizational processes and directionality in paired-associate learning'

Precisely speaking you need a Danalogic 601 with Autoscope Adaptive directionality... If autoscope adaptive directionality is not available then you can use softwitching also....

Precaution :- Never use environmental optimizer, critical bands, DFS ULTRA II , Isolate NaNOtech and Anoop