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alsactl/alsactl.1
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alsactl/alsactl.1
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.TH ALSACTL 1 "25 Nov 1998"
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.SH NAME
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alsactl \- command-line control for ALSA soundcard driver
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.SH SYNOPSIS
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\fBalsactl\fP [\fIoptions\fP] [\fIstore\fP|\fIrestore\fP] <card #>
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.SH DESCRIPTION
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\fBalsactl\fP is used to control advanced settings for the ALSA
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soundcard drivers. It supports multiple soundcards.
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.SH INVOKING
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\fBalsactl\fP [\fIoptions\fP] [\fIstore\fP|\fIrestore\fP] <card #>
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.SS Commands
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\fIstore\fP saves the current driver setup for the selected soundcard
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to the configuration file.
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\fIrestore\fP loads driver setup for the selected soundcard from the configuration file.
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If no soundcards are specified, setup for all cards will be saved or
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loaded.
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.SS Options
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.TP
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\fI-h, --help\fP
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Help: show available flags and commands.
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.TP
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\fI-f, --f\fP file
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Select the configuration file to use. The default is /etc/asound.conf
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.TP
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\fI-d, --debug\fP
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Use debug mode: a bit more verbose.
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.TP
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\fI-v, --version\fP
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Print alsactl version number.
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.SH FILES
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\fI/etc/asound.conf\fP (or whatever file the user specifies with the
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\fB-f\fP flag) is used to store current mixer settings. There are two benefits
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of using alsactl: first, alsactl doesn't force the user to
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use any particular mixer app; second, alsactl knows about pretty much
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everything alsa is capable of controlling, which the various mixers
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(like \fBamixer\fP, \fBalsamixer\fP, or \fBxamixer\fP) might not.
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The configuration file is generated automatically by running
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\fBalsactl store\fP. Editing the configuration file by hand is
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possible and may be necessary for some of the card-specific features
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that aren't known by the mixer apps (e.g. automatic mic gain, digital
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outputs, etc.).
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.SH SEE ALSO
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\fB
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amixer(1),
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alsamixer(1),
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aplay(1)
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\fP
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.SH BUGS
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None known.
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.SH AUTHOR
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\fBalsactl\fP is by Jaroslav Kysela <perex@jcu.cz>
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This document is by Paul Winkler <zarmzarm@erols.com>.
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.SH QUESTIONS!!!
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There are some things in the asound.conf file that I don't
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understand:
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--What's the difference between "hardware mute" and "join mute"?
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--What does "record-by-mute" do?
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--What does "external-input" do?
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