ALSAMIXER(1)						      General Commands Manual						      ALSAMIXER(1)

NAME

       alsamixer - soundcard mixer for ALSA soundcard driver, with ncurses interface

SYNOPSIS

       alsamixer [options]

DESCRIPTION

       alsamixer is an ncurses mixer program for use with the ALSA soundcard drivers. It supports multiple soundcards with multiple devices.

OPTIONS

       -h, --help
	      Help: show available flags.

       -c, --card <card number or identification>
	      Select the soundcard to use, if you have more than one. Cards are numbered from 0 (the default).

       -D, --device <device identification>
	      Select the mixer device to control.

       -V, --view <mode>
	      Select the starting view mode, either playback, capture or all.

       -g, --no-color
	      Toggle the using of colors.

MIXER VIEWS

       The  top-left  corner of alsamixer is the are to show some basic information: the card name, the mixer chip name, the current view mode and
       the currently selected mixer item.  When the mixer item is switched off, [Off] is displayed in its name.

       Volume bars are located below the basic information area.  You can scroll left/right when all controls can't be put  in	a  single  screen.
       The name of each control is shown in the bottom below the volume bars.  The currently selected item is drawn in red and/of emphasized.

       Each  mixer  control  with  volume  capability shows a box and the current volume filled in that box.  The volume percentages are displayed
       below the volume bar for left and right channels.  For a mono control, only one value is shown there.

       When a mixer control is turned off, M (mute) appears below the volume bar.  When it's turned on, O in green appears instead.  You can  tog-
       gle the switch via m key.

       When  a	mixer control has capture capability, the capture flag appears below the volume bar, too.  When the capture is turned off, -------
       is shown.  CAPTURE in red appears when the capture switch is turned on.	In addition, L and R letters appear in	left  and  right  side	to
       indicate that left and the right channels are turned on.

       Some  controls have the enumeration list, and don't show boxes but only texts which indicate the currently active item.	You can change the
       item via up/down keys.

VIEW MODES

       alsamixer has three view modes: playback, capture and all.  In the playback view, only the controls related with playback are shown.  Simi-
       larly,  only  the  controls for capture (recording) are shown in the capture view.  The all view mode shows all controls.  The current view
       mode is displayed in the top-left position together with the mixer name, etc.

       The default view mode is the playback view.  You can change it via -V option.

       Each view mode can be switched via keyboard commands, too.  See the next section.

KEYBOARD COMMANDS

       alsamixer recognizes the following keyboard commands to control the soundcard.  Commands shown here in upper case  can  also  be  given	in
       lower case.  To be reminded of these keystrokes, hit the h key.

   General Controls
       The  Left  and  right  arrow  keys  are used to select the channel (or device, depending on your preferred terminology). You can also use n
       ("next") and p ("previous").

       The Up and Down Arrows control the volume for the currently selected device. You can also use + or - for the same purpose.  Both  the  left
       and right signals are affected. For independent left and right control, see below.

       The B or = key adjusts the balance of volumes on left and right channels.

       M  toggles muting for the current channel (both left and right).  If the hardware supports it, you can mute left and right independently by
       using , (or <) and . (or >) respectively.

       SPACE enables recording for the current channel. If any other channels have recording enabled, they will have their recording function dis-
       abled first. This only works for valid input channels, of course.

       L re-draws the screen.

   View Mode Controls
       Function  keys are used to change view modes.  You can switch to the help mode and the proc info mode via F1 and F2 keys, respectively.	On
       terminals that can't use function keys like gnome-terminal, ? and / keys can be used alternatively for help and proc modes.

       F3, F4 and F5 keys are used to switch to playback, capture and all view mode, respectively.  TAB key toggles the current view  mode  circu-
       larly.

   Quick Volume Changes
       PageUp increases volume by 5.

       PageDown decreases volume by 5.

       End sets volume to 0.

       You can also control left & right levels for the current channel independently, as follows:

       [Q | W | E ]  -- turn UP [ left | both | right ]

       [Z | X | C ] -- turn DOWN [ left | both | right ]

       If the currently selected mixer channel is not a stereo channel, then all UP keys will work like W, and all DOWN keys will work like X.

       The number keys from 0 to 9 are to change the absolute volume quickly.  They correspond to 0 to 90% volume.

   Selecting the Sound Card
       You  can  select  another  sound  card by pressing the F6 or S keys.  This will show a list of available sound cards to choose from, and an
       entry to enter the mixer device name by hand.

   Exiting
       Quit the program with ALT Q, or by hitting ESC.	Please note that you might need to hit ESC twice on some terminals since it's regarded	as
       a prefix key.

SEE ALSO

	amixer(1), aplay(1), arecord(1)

BUGS

       Some  terminal  emulators (e.g. nxterm) may not work quite right with ncurses, but that's their own damn fault. Plain old xterm seems to be
       fine.

AUTHOR

       alsamixer  has  been  written  by  Tim  Janik  and  been  further  improved  by	Jaroslav  Kysela  <perex@perex.cz>  and  Clemens   Ladisch
       <clemens@ladisch.de>.

       This manual page was provided by Paul Winkler <zarmzarm@erols.com>.

								    22 May 2009 						      ALSAMIXER(1)