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FreeBSD多媒体与Web服务器使用指南

1. FreeBSD多媒体功能

1.1 CD播放器与混音器

KDE系统自带了一款CD播放器，它支持CDDB系统，能够自动从互联网下载专辑和曲目信息。

FreeBSD还配备了命令行混音器，通过以下操作可进行相关设置：
-查看当前混音器设置：在命令提示符下输入mixer并回车，示例输出如下：

Mixer vol is currently set to 90:90 Mixer bass is currently set to 75:75 Mixer treble is currently set to 75:75 Mixer synth is currently set to 75:75 Mixer pcm is currently set to 75:75 Mixer speaker is currently set to 75:75 Mixer line is currently set to 75:75 Mixer mic is currently set to 32:32 Mixer cd is currently set to 75:75 Mixer mix is currently set to 0:0 Mixer igain is currently set to 75:75 Mixer ogain is currently set to