Active noise cancellation (ANC)
Advanced audio coding (AAC)
Advanced vector extensions
Algorithmic and convolution-based reverbs
Application programming interface (API)
Ardour
audio-processing software
download location, operating system support, and plugin support
exporting audio
JACK
multitracking and effects
recording quality
scripting categories
virtual instruments and samples
Attack, decay, sustain, and release (ADSR) envelope
additive and subtractive synths
synths vs. controllers
visualization
waveforms
Audio interface connectivity