Letter: A
- aeolus - Aeolus, a synthesized pipe organ
- ambdec - Ambisonics decoder
- ams - Realtime modular synthesizer
- amsynth - Software Synthesizer
- ardour2 - Multichannel Digital Audio Workstation
- avr-binutils - GNU binutils for AVR
- avr-gcc - GNU Compiler Collection for AVR
- avr-libc - AVR libc.
- avrdude - AVRDUDE is software for programming Atmel AVR Microcontrollers.
- avrdude-docs - Documentation for AVRDUDE.