$ arecord -vv -D headset -fcd test.wav $ aplay -vv -D v8237 test.wav
Hit CTRL +C stop either command.
A couple of random nuggets: run cat /proc/asound/version to get your ALSA version.
The examples are from the onboard sound on my low-budget ECS motherboard. As you can see, it supports digital output (S/PDIF = Sony-Phillips Digital Interface) in addition to analog. However, I can't use it--there is neither connector nor headers on the motherboard. Beware when you are buying sound cards, because they often claim "24-bit digital sound!" or some such. All computer sound cards support digital sound- their main job is converting digital sound files for analog speakers. If you want digital output to digital speakers, read the specs carefully to be sure you're getting real 100% digital.
This article was first published on LinuxPlanet.com.
One of the ways around the issues of security and control that make some businesses wary of cloud computing is to build a private cloud -- one that remains within the corporate firewall and is wholly controlled internally. Private clouds also increase the agility of IT an organization's IT infrastructure and make it easier to roll out new technology projects. Download this eBook to get the facts behind the private cloud and learn how your organization can get started.