Using ALSA
ALSA has two parts: the low-level base that supplies sound card
drivers and interacts directly with audio hardware and a higher-level
interface that contains the userland tools.
alsa-base and its dependencies should already be
present, but you may need to install alsa-utils to
get the userland tools. alsa-utils gives you
alsamixer, aplay, speaker-test,
arecord, and number of sound files for testing your
speakers.
Open a terminal and type in alsamixer to open the mixer console, shown
in Figure 13-1. ALSA runs in the console via an ncurses interface, which means it is completely keyboard controlled and does not require an X server. The top-left caption tells you a lot of useful information: your sound card and chipset, which set of functions ...
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