| AAF | Audit Automation Facilities |
|---|---|
| AAM | audio adapter module |
| AAO | Area Audit Office |
| AAS | American Auditory Society |
| ABC | Audit Bureau of Circulations |
| ACP | Audio Control Panel |
| ACU | Audio Control Unit |
| AES | Audio Engineering Society |
| ATC | Audio Tele-Conference |
| AVB | Audio Video Bridging |