| 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>. |