258 lines
6.7 KiB
Groff
258 lines
6.7 KiB
Groff
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.TH "MSRTSIMUL" "1" "Oct 14, 2025" "6.9.1" "SeisComP"
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.SH NAME
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msrtsimul \- SeisComP Documentation
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.sp
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\fBMiniSEED real time playback and simulation\fP
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.SH DESCRIPTION
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.sp
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msrtsimul simulates a real\-time data acquisition by injecting miniSEED data from a
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file into the seedlink buffer via the mseedfifo plugin for seedlink. It can be
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used for simulating real\-time conditions in playbacks for whole\-system
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demonstrations, user training, etc.
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.sp
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The data is played back as if they were recorded at current time. Therefore,
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creation times and the actual data times including pick times, event times etc.
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will be \fBobscured\fP\&. \fI\%Historic playbacks\fP allow
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keeping the actual data times.
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.sp
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\fBHINT:\fP
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.INDENT 0.0
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.INDENT 3.5
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.INDENT 0.0
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.IP \(bu 2
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Playbacks on production systems are normally not recommended.
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.IP \(bu 2
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For real\-time playbacks, the data must be sorted by end time. This
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requirement may be violated. Use \fI\%scmssort\fP for sorting the data by
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(end) time.
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.IP \(bu 2
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Stop \fI\%slarchive\fP before running msrtsimul for avoiding that data with
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wrong times are archived.
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.IP \(bu 2
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Normally, \fI\%seedlink\fP assumes that the data is provided in records of
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512 bytes. msrtsimul issues a warning when detecting a record of other size.
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.IP \(bu 2
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Data available in other record sizes can be repacked to 512 bytes by
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external software such as \fBmsrepack\fP available with
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\fIlibmseed \- The miniSEED data format library\fP [\fI\%32\fP]\&.
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.IP \(bu 2
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Applications other than standard \fI\%seedlink\fP in \fISeisComP\fP or
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\fI\%seedlink\fP compiled specifically may accept other record sizes. For
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accepting these records use msrtsimul with \fB\-\-unlimited\fP\&.
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.UNINDENT
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.UNINDENT
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.UNINDENT
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.SS Non\-default seedlink pipes
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.sp
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By default, msrtsimul writes the data into the mseedfifo pipe
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\fI$SEISCOMP_ROOT/var/run/seedlink/mseedfifo\fP\&.
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If the data is to be written into the pipe of a \fBseedlink\fP alias or
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into any other pipe, the pipe name must be adjusted. Use the option
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.INDENT 0.0
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.IP \(bu 2
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\fB\-\-seedlink\fP to replace \fIseedlink\fP by another name, e.g. a seedlink instance
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created as an alias, \fBseedlink\-test\fP\&. This would write into
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\fI$SEISCOMP_ROOT/var/run/seedlink\-test/mseedfifo\fP\&.
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.IP \(bu 2
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\fB\-\-stdout\fP to write to standard output and then redirect to any other location.
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.UNINDENT
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.SS Historic playbacks
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.sp
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You may use msrtsimul with the \fB\-m\fP \fIhistoric\fP option to maintain the
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time of the records,
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thus the times of picks, amplitudes, origins, etc. but not the creation times.
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Applying \fB\-m\fP \fIhistoric\fP will feed the data into the seedlink buffer at the time
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of the records. The time of the system is untouched. GUI, processing modules, logging,
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etc. will run with current system time. The historic mode allows to process waveforms
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with the stream inventory valid at the time when the data were recorded including
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streams closed at current time.
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.sp
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\fBWARNING:\fP
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.INDENT 0.0
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.INDENT 3.5
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When repeating historic playbacks, the waveforms are fed multiple times to the
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seedlink buffer and the resulting picks are also repeated with the same pick
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times. This may confuse the real\-time system. Therefore, seedlink and other modules
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creating or processing picks should be
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stopped, the seedlink buffer should be cleared and the processing
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modules should be restarted to clear the buffers before starting the
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historic playbacks. Make sure \fI\%scautopick\fP is configured or started with
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the \fB\-\-playback\fP option. Example:
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.INDENT 0.0
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.INDENT 3.5
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.sp
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.nf
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.ft C
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seiscomp stop
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rm \-rf $SEISCOMP_ROOT/var/lib/seedlink/buffer
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seiscomp start
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msrtsimul ...
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.ft P
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.fi
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.UNINDENT
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.UNINDENT
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.UNINDENT
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.UNINDENT
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.SS seedlink setup
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.sp
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For supporting msrtsimul activate the \fI\%msrtsimul\fP parameter in the
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seedlink module configuration (\fBseedlink.cfg\fP), update the configuration
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and restart seedlink before running msrtsimul:
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.INDENT 0.0
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.INDENT 3.5
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.sp
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.nf
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.ft C
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seiscomp update\-config seedlink
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seiscomp restart seedlink
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msrtsimul ...
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.ft P
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.fi
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.UNINDENT
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.UNINDENT
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.SS Examples
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.INDENT 0.0
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.IP 1. 3
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Playback miniSEED waveforms in real time with verbose output:
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.INDENT 3.0
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.INDENT 3.5
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.sp
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.nf
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.ft C
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$ msrtsimul \-v miniSEED\-file
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.ft P
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.fi
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.UNINDENT
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.UNINDENT
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.IP 2. 3
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Playback miniSEED waveforms in historic mode. This may require \fI\%scautopick\fP
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to be started with the option \fIplayback\fP:
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.INDENT 3.0
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.INDENT 3.5
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.sp
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.nf
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.ft C
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msrtsimul \-v \-m historic miniSEED\-file
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.ft P
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.fi
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.UNINDENT
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.UNINDENT
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.IP 3. 3
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Feed the data into the buffer of a specific seedlink instance, e.g. \fIseedlink\-test\fP:
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.INDENT 3.0
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.INDENT 3.5
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.sp
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.nf
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.ft C
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msrtsimul \-v \-\-seedlink seedlink\-test miniSEED\-file
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.ft P
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.fi
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.UNINDENT
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.UNINDENT
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.UNINDENT
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.SH MODULE CONFIGURATION
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.nf
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\fBetc/defaults/global.cfg\fP
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\fBetc/defaults/msrtsimul.cfg\fP
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\fBetc/global.cfg\fP
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\fBetc/msrtsimul.cfg\fP
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\fB~/.seiscomp/global.cfg\fP
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\fB~/.seiscomp/msrtsimul.cfg\fP
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.fi
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.sp
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.sp
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msrtsimul inherits \fI\%global options\fP\&.
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.SH COMMAND-LINE OPTIONS
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.sp
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\fBmsrtsimul [OPTION] miniSEED\-file\fP
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.SS Verbosity
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.INDENT 0.0
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.TP
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.B \-h, \-\-help
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Display this help message.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-v, \-\-verbose
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Verbose mode.
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.UNINDENT
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.SS Playback
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.INDENT 0.0
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.TP
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.B \-c, \-\-stdout
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Write on standard output. The output my be redirected to a
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specific mseedfifo path.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-d, \-\-delays
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Add artificial delays.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-j, \-\-jump float
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Minutes to skip at the beginning.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-m, \-\-mode string
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Playback mode: choose between \(aqrealtime\(aq and \(aqhistoric\(aq
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-seedlink string
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The seedlink module name. Useful if a seedlink alias or
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non\-standard names are used. Replaces \(aqseedlink\(aq
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in the standard mseedfifo path.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-s, \-\-speed float
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Speed factor. 1 is normal speed.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-test
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Test mode.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-u, \-\-unlimited
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Allow miniSEED records which are not 512 bytes.
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.UNINDENT
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.SH AUTHOR
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gempa GmbH, GFZ Potsdam
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.SH COPYRIGHT
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gempa GmbH, GFZ Potsdam
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.\" Generated by docutils manpage writer.
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