b487a96ada
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com> git-svn-id: http://svn.astersk.org/svn/dahdi/tools/trunk@10196 17933a7a-c749-41c5-a318-cba88f637d49
146 lines
3.1 KiB
Groff
146 lines
3.1 KiB
Groff
.TH "DAHDI_MONITOR" "8" "9 Sep 2011" "" ""
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.SH NAME
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dahdi_monitor \- checks the Rx/Tx levels of a DAHDI channels
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.SH SYNOPSIS
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.B dahdi_monitor \fInum\fB [\-v[v]]
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.B dahdi_monitor \fInum\fB [\-o] [<\-f|\-F> \fIFILE\fB]
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.B dahdi_monitor \fInum\fB [[<\-r|\-R> \fIFILE\fB]] [[<\-t|\-T> \fIFILE\fB]]
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.SH DESCRIPTION
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dahdi_monitor monitors a Dahdi channel. It can record the output to a
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file, play it to the speaker, or visualize the audio levels on the
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terminal.
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Recorded audio files are by default raw signed linear PCM. If the file
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name ends with ".wav", the recorded file will be a WAV file.
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The visual display shows the current audio level at both the Rx
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(audio Received by Asterisk) and
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Tx (audio Transmitted by Asterisk)
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To exit the program, press Ctrl-C.
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.SH OPTIONS
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The first (mandatory) parameter is the number of the channel
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to monitor.
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.B \-m
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.RS
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Multiple channels. Don't multiplex both Rx and Tx in a single channel.
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Normally there's a different option that you need that implies it.
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.RE
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.B \-o
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.RS
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Plays the output to OSS (/dev/dsp). Requires -m not to be used.
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.RE
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.B \-v
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.RS
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Display Visual audio levels. With two v-s, Verbose mode is enabled, that
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shows the actual levels as numbers. Note that this requires a terminal
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wider than 80 columns to be properly displayed.
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Implies -m.
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.RE
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.B \-f \fIFILE
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.RS
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Record the content of the channel (Tx + Rx) to a file.
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.RE
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.B \-F \fIFILE
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.RS
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Record the content of the channel (Tx + Rx) before the echo canceler
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to a file.
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.RE
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.B \-r \fIFILE
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.RS
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Record the content of the Rx channel to a file.
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Implies -m.
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.RE
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.B \-R \fIFILE
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.RS
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Record the content of the R channel before the echo canceler to a file.
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Implies -m.
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.RE
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.B \-s \fIFILE
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.RS
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Record the content of the Tx and Rx of the channel to a file.
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.RE
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.B \-S \fIFILE
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.RS
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Records a stereo of both Tx and Rx of the channel before the echo
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canceler to a file.
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.RE
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.B \-t \fIFILE
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.RS
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Record the content of the Tx channel to a file.
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Implies -m.
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.RE
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.B \-T \fIFILE
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.RS
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Record the content of the Tx channel before the echo canceler to a file.
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Implies -m.
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.RE
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.SH EXAMPLES
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Visualize audio levels on DAHDI channel 2:
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dahdi_monitor 2 -v
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Record channel 3 to a file:
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dahdi_monitor 3 -f output.raw
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This will create a raw PCM file (signed-linear, 8kHz, mono, 16 bits per
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sample). Both the Tx and Rx will be multiplexed in a single channel.
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It can be converted to a WAV file using e.g.:
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sox -s -c1 -2 -r8000 output.raw output.wav
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Record Tx and Rx of channel 5 to separate files. This time directly to
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WAV files:
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dahdi_monitor 5 -r output_rx.wav -t output_tx.wav
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Record channel 8 to a stereo file (Tx and Rx on its two channels):
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dahdi_monitor 8 -s output.raw
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Converting it to a WAV file:
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sox -s -c2 -2 -r8000 output.raw output.wav
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.SH SEE ALSO
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.PP
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dahdi_tool(8), dahdi_cfg(8).
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.SH AUTHOR
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.PP
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This manual page was written by Santiago Ruano Rinc\['o]n
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<santiago@unicauca.edu.co> for
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the Debian system (but may be used by others). Permission is
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granted to copy, distribute and/or modify this document under
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the terms of the GNU General Public License, Version 2 any
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later version published by the Free Software Foundation.
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