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- Using Alsamixer
- ===============
-
- Alsamixer uses an ncurses interface, which may not display properly in
- an xterm.
-
- Start it by typing "alsamixer".
-
- Optional flags:
- alsamixer -h displays the available flags.
- alsamixer -e starts in "exact" mode. See below...
- alsamixer -c N selects the soundcard to control, where N is the number of
- the card, counting from 1.
- alsamixer -m selects which mixer device to control, counting from 0. This
- is only applicable to soundcards that have more than one mixer to
- control. It is the same as the amixer -d flag.
-
-
- Keyboard commands:
- ==================
-
- Left & 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).
-
- Up/down arrows control the volume for the currently selected device.
- Both the left & right signals are controlled.
- You can also use "+" or "-" to turn volumes up or down.
-
- "M" toggles muting for the current channel (both left and right). You can
- mute left and right independently by using , and . respectively.
-
- SPACE toggles recording: the current channel will be added or removed from
- the sources used for recording. This only works on valid input channels,
- of course.
-
- "L" re-draws the screen.
-
- TAB does something interesting: it toggles the mode for volume display.
- This affects the numbers you see, but not the operation of the level
- controls. There seem to be two modes: one is percentages from 0-100, the
- other is called "exact mode" and varies from channel to channel. This
- shows you the settings as the soundcard understands them. All the channel
- level ranges are from 0 to a power of 2 minus one (e.g. 0-31 or 0-63).
-
- Quick Volume Changes
- --------------------
-
- PageUp increases volume by 10.
- PageDown decreases volume by 10.
- Home sets volume to 100.
- End sets volume to 0.
-
- You can also control left & right levels for the current channel
- independently,
- according to this chart:
-
- Q | W | E <-- UP
- -------------
- Z | X | C <---DOWN
-
- ^ ^ ^
- | | +-- Right
- | |
- | +--- Both
- |
- Left
-
-
- If the current mixer channel is not a stereo channel, then all UP keys
- will work like W, and all DOWN keys will work like X.
-
-
- Exiting
- =======
-
- You can exit with ALT + Q, or by hitting ESC.
-
-
- -----------------------------------------------------------------
-
- Alsamixer has been written by Tim Janik <timj@gtk.org> and
- been furtherly improved by Jaroslav Kysela <perex@perex.cz>.
- This document was provided by Paul Winkler <zarmzarm@erols.com>.
-