Alsa Ubuntu Desktop

root@ubuntu:/home/ubuntu# aptitude show alsa-utils
Package: alsa-utils
State: installed
Automatically installed: yes
Multi-Arch: foreign
Version: 1.0.27.2-1ubuntu2
Priority: необязательный
Section: sound
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Architecture: amd64
Uncompressed Size: 2 208 k
Depends: lsb-base (>= 3.0-9), kmod, whiptail | dialog, libasound2 (>= 1.0.27), libc6 (>= 2.15),
libncursesw5 (>= 5.6+20080119), libsamplerate0 (>= 0.1.7), libtinfo5
Recommends: alsa-base (>= 1.0.15)
Provides: audio-mixer
Description: Утилиты для настройки и использования ALSA
Included tools:
* alsactl: advanced controls for ALSA sound drivers
* alsaloop: create loopbacks between PCM capture and playback devices
* alsamixer: curses mixer
* alsaucm: alsa use case manager
* amixer: command line mixer
* amidi: read from and write to ALSA RawMIDI ports
* aplay, arecord: command line playback and recording
* aplaymidi, arecordmidi: command line MIDI playback and recording
* aconnect, aseqnet, aseqdump: command line MIDI sequencer control
* iecset: set or dump IEC958 status bits
* speaker-test: speaker test tone generator

ALSA — это продвинутая звуковая архитектура Linux (Advanced Linux Sound Architecture).
Homepage: http://www.alsa-project.org/
12:23:02
root@ubuntu:/home/ubuntu# amixer
Simple mixer control 'Master',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 64
Mono: Playback 44 [69%] [-20.00dB] [on]
Simple mixer control 'Headphone',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 64
Mono:
Front Left: Playback 64 [100%] [0.00dB] [on]
Front Right: Playback 64 [100%] [0.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 255 [100%] [0.00dB]
Front Right: Playback 255 [100%] [0.00dB]
Simple mixer control 'Front',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 64
Mono:
Front Left: Playback 64 [100%] [0.00dB] [on]
Front Right: Playback 64 [100%] [0.00dB] [on]
Simple mixer control 'Front Mic',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-34.50dB] [off]
Front Right: Playback 0 [0%] [-34.50dB] [off]
Simple mixer control 'Front Mic Boost',0
Capabilities: volume
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: 0 - 3
Front Left: 0 [0%] [0.00dB]
Front Right: 0 [0%] [0.00dB]
Simple mixer control 'Surround',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 64
Mono:
Front Left: Playback 64 [100%] [0.00dB] [on]
Front Right: Playback 64 [100%] [0.00dB] [on]
Simple mixer control 'Center',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 64
Mono: Playback 64 [100%] [0.00dB] [on]
Simple mixer control 'LFE',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 64
Mono: Playback 64 [100%] [0.00dB] [on]
Simple mixer control 'Line',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-34.50dB] [off]
Front Right: Playback 0 [0%] [-34.50dB] [off]
Simple mixer control 'Line Boost',0
Capabilities: volume
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: 0 - 3
Front Left: 0 [0%] [0.00dB]
Front Right: 0 [0%] [0.00dB]
Simple mixer control 'Capture',0
Capabilities: cvolume cswitch
Capture channels: Front Left - Front Right
Limits: Capture 0 - 46
Front Left: Capture 46 [100%] [30.00dB] [on]
Front Right: Capture 46 [100%] [30.00dB] [on]
Simple mixer control 'Capture',1
Capabilities: cvolume cswitch
Capture channels: Front Left - Front Right
Limits: Capture 0 - 46
Front Left: Capture 46 [100%] [30.00dB] [off]
Front Right: Capture 46 [100%] [30.00dB] [off]
Simple mixer control 'Auto-Mute Mode',0
Capabilities: enum
Items: 'Disabled' 'Enabled'
Item0: 'Enabled'
Simple mixer control 'Channel Mode',0
Capabilities: enum
Items: '2ch' '4ch' '6ch'
Item0: '2ch'
Simple mixer control 'Input Source',0
Capabilities: cenum
Items: 'Front Mic' 'Rear Mic' 'Line'
Item0: 'Line'
Simple mixer control 'Input Source',1
Capabilities: cenum
Items: 'Front Mic' 'Rear Mic' 'Line'
Item0: 'Line'
Simple mixer control 'Rear Mic',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-34.50dB] [off]
Front Right: Playback 0 [0%] [-34.50dB] [off]
Simple mixer control 'Rear Mic Boost',0
Capabilities: volume
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: 0 - 3
Front Left: 1 [33%] [10.00dB]
Front Right: 1 [33%] [10.00dB]