Advanced Linux Sound Architecture (ALSA) is a modularized architecture which
supports quite a large range of ISA and PCI cards.
It's fully compatible with old OSS drivers (either OSS/Lite, OSS/commercial).
To use the features of alsa, one can either use:
- the old OSS api
- the new ALSA api that provides many enhanced features.
Using the ALSA api requires to use the ALSA library.