Better Linux Sound Management With ALSA - page 2
Webcams Win, Author LosesYou're going to need alsa-base and alsa-utils. Suppose you have a single sound card on your system; either a PCI sound card or onboard sound. This is easy. Just fire up alsamixer to configure it, as Figure 1 shows. That's for my onboard AC97-based chipset. (As always, lspci will show you what's on your system.) alsamixer only displays supported functions. The top-left captions tell you a lot of useful information: your sound card and chipset, which set of functions you're viewing, and the values for the highlighted setting. The default view is Playback, like in Figure 1. There are three views: Playback, Capture, and All. Hit the Tab key to toggle between them. Figure 2 shows the Capture screen.
Basic navigation and settings are easy: go back and forth with the right and left arrow keys, and hit the Escape key to close. The little boxes with MM in them means that function is muted, or disabled. Toggle the M key to mute/unmute. 00 means zero volume, so use the up and down arrow keys to adjust it. When there are two channels you can adjust each one independently, which you can see in the Master setting in Figure 1. Q increases the left channel, and Z decreases. E and C control the right channel. In the Capture screen, use the spacebar to select the active recording device.
Solid state disks (SSDs) made a splash in consumer technology, and now the technology has its eyes on the enterprise storage market. Download this eBook to see what SSDs can do for your infrastructure and review the pros and cons of this potentially game-changing storage technology.
- 1Linux Top 3: Alienware, KDE and Ubuntu 13.04
- 2Linux Top 3: Linux Mint Olivia, Fedora 19's Cat and Ubuntu's Mission Accomplished Moment
- 3GNOME 3.8 Debuts New Open Source Linux Desktop
- 4Linux Top 3: Linux 3.10 Goes Long, Linux 3.11 Advances as LXDE Merges
- 5Linux Top 3: Ubuntu Kaylin, Debian Wheezy and Linux Mint