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Combat Aural Awareness System

A system of audio cues used by the Asari Republican Navy, also known by its abbreviation CAAS. Civilians have erroneously referred to it as "symphonic tactical audio", which has given CAAS the impression of being battle music which it is not.

CAAS has been developed and maintained by the Lafellana Joint Noetoware corporation. Asari Republican Navy and several smaller independent asari navies utilize CAAS.

Use of CAAS

Combat information officers who are in charge of observing and interpreting accumulated sensors information on the bridge make use of CAAS. A specialized headset is used for this purpose to isolate noise and permit hearing CAAS tones better.

The CAAS system uses various tones and sound clips to compress three variables into one sound byte that is then played to the CIO. These variables are ship class, direction and distance. Via this system a CIO can stay updated to placement of hostile vessels through their sense of hearing. A lone tone could indicate a cruiser-sized vessel straight ahead at moderate distance, or a burst of chirps could warn of wing of fighters approaching from the flank at close range.

Trivia

The concept was initially mentioned by asari_promiscuity in this post but was not elaborated further, until this article was made.

It also appears to be similar to modern systems used in aviation, such as Bitching Betty alerts and Marker beacon tone signals.

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