| AOD | Audio on Demand |
| AV | Audio-Video Signaleingang bzw. -ausgang, Funktion |
| cda | CD-Audio-Track eine Dateiendung |
| DAI | Digital Audio Interface |
| DAE | Digital Audio Extraction |
| DAC | Digital Audio Copy |
| DAB | Digital Audio Broadcasting Digitales Radio |
| CAR | Compressed Audio Recording |
| DAD | Digital Audio Disk |
| AVC | Audio Visual Connection [IBM] |
| AVA | Audio Visual Authoring [IBM] |
| au | Audio-Basic-File eine Dateiendung |
| DAM | Digital Audio Monitor |
| DAR | Digital Audio Radio |
| TAC | Transparent Audio Coding |
| SAT | Supervisory Audio Tone |
| SAS | Single Audio System |
| SAP | Secure Audio Path |
| PAC | Perceptual Audio Coding |
| NAS | Network Audio System |
| HDA | High Definition Audio |
| GAB | Group Audio Bridging |
| EAX | Environmental Audio Extensions |
| EAC | Exact Audio Copy |
| DAT | Digital Audio Tape |
| wav | Wave: Audio-Datei eine Dateiendung |
| AMP | Audio MPEG Player |
| WMA | Windows Media Audio |
| AC | Audio Compression [engl.] |
| AC | Audio Coding [Nr.] [engl.] Kompressionsverfahren |
| AF | Audio Frequency [engl.] Tonfrequenz [bis etwa 10 kHz] |
| AI | Audio Interface [engl.] Schnittstelle für Audiodaten |
| AES | Audio Engineering Society [engl.] |
| EDAB | Extended Digital Audio Broadcasting |
| DAVIC | Digital Audio And Video Council |
| AFM | Audio Frequency Modulation [engl.] |
| AFR | Audio Frequency Reactor [engl.] Tonfrequenz-Drosselspule |
| AFT | Audio Frequency Transformer [engl.] Tonfrequenz-Übertrager |
| AVO | Audio-Visuelles Object [engl.] |
| AHD | Audio High Density [engl.] Audioaufnahme bzw. -wiedergabe im VHD-Videoformat |
| EPAC | Enhanced Perceptual Audio Coding |
| FLAC | Free Lossless Audio Codec |
| VAT | Video / Visual Audio Tool |
| T-DAB | Terrestrial Digital Audio Broadcasting |
| AAC | Advanced Audio Coding [engl.] Audio-Kompressionsverfahren |
| AAI | Advanced Audio Interface [engl.] Schnittstellenstandard/ Audio |
| SACD | Super Audio Compact Disk |
| RDAT | Rotary Digital Audio Tape |
| ACR | Audio Cassette Recorder [engl.] |
| MAVT | Mobile Audio Visual Terminal |