i just installed ubuntu, as i have to be familiar with it in my upcoming networking class i am going to take in high school, and i was just wondering how to get sound on ubuntu linux when you first install it. Drivers, etc would be very much appreciated

i really need to know how to get sound. i am very thankful for your opinions

ProblemType: Bug
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: SB [HDA ATI SB], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 2/2
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: matt 4331 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xf2400000 irq 16'
   Mixer name : 'IDT 92HD75B3X5'
   Components : 'HDA:111d7603,103c3635,00100202 HDA:11c11040,103c137e,00100200'
   Controls : 32
   Simple ctrls : 19
Card1.Amixer.info:
 Card hw:1 'HDMI'/'HDA ATI HDMI at 0xf2310000 irq 19'
   Mixer name : 'ATI RS690/780 HDMI'
   Components : 'HDA:1002791a,00791a00,00100000'
   Controls : 4
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined
   Playback channels: Mono
   Mono: Playback [off]
Date: Tue Mar 30 22:45:46 2010
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
Package: alsa-base 1.0.20+dfsg-1ubuntu5
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: alsa-driver
Uname: Linux 2.6.31-14-generic x86_64