.. highlight:: rst

.. _scvoice:

#######
scvoice
#######

**Real time voice alert.**


Description
===========

This tool runs an external script whenever an event has been created or updated.
It can also run a script in case an amplitude of a particular type or a
preliminary origin (heads-up message) has been sent. The common purpose for
this tool is to play a sound or to convert a message to speech using external
tools like festival or espeak.
There are three possible trigger mechanisms for calling scripts:

* Event creation/update
* Amplitude creation
* Origin creation (with status = preliminary)

Although this tool was designed to alert the user acoustically it can also be
used to send e-mails, sms or to do any other kind of alert. scvoice can only
run one script per call type at a time! A template (:ref:`scalert`) Python script with
more options has been added to |scname| to be used as source for custom notifications.


Examples
========


Event script
------------

The following script is used as event script. It requires
`festival <http://www.cstr.ed.ac.uk/projects/festival/>`_ which should be
available in almost any Linux distribution.

.. important::
   When saving the scripts given below do not forget to set the executable
   bit otherwise scvoice cannot call the scripts. In Linux just run:

   .. code-block:: sh

      chmod +x /path/to/file


#. Save an executable script file, e.g., under, e.g. :file:`~/.seiscomp/event.sh`:

   .. code-block:: sh

      #!/bin/sh
      if [ "$2" = "1" ]; then
      echo " $1" | sed 's/,/, ,/g'   | festival --tts;
      else
      echo "Event updated, $1" | sed 's/,/, ,/g'   | festival --tts;
      fi

#. Add the file to the configuration of :confval:`scripts.event` in the file
   :file:`SEISCOMP_ROOT/etc/scvoice.cfg` or :file:`~/.seiscomp/scvoice.cfg`:

   .. code-block:: sh

      scripts.event = /home/sysop/.seiscomp/event.sh

Amplitude script
----------------

#. Save an executable script file, e.g., under :file:`~/.seiscomp/amplitude.sh`

   .. code-block:: sh

      #!/bin/sh
      # Play a wav file with a particular volume
      # derived from the amplitude itself.
      playwave ~/.seiscomp/beep.wav -v $3

#. Add the file to the configuration of :confval:`scripts.amplitude` in the
   file :file:`SEISCOMP_ROOT/etc/scvoice.cfg` or :file:`~/.seiscomp/scvoice.cfg`:

   .. code-block:: sh

      scripts.amplitude = /home/sysop/.seiscomp/amplitude.sh


Alert script
------------


#. Create a sound file :file:`siren.wav` for accoustic alerts.
#. Save an executable script file under, e.g., :file:`~/.seiscomp/alert.sh`:

   .. code-block:: sh

      #!/bin/sh
      playwave /home/sysop/.seiscomp/siren.wav

#. Add the script filename to the configuration of :confval:`scripts.alert` in
   the file :file:`SEISCOMP_ROOT/etc/scvoice.cfg` or :file:`~/.seiscomp/scvoice.cfg`.

   .. code-block:: sh

      scripts.alert = /home/sysop/.seiscomp/alert.sh


.. _scvoice_configuration:

Configuration
=============

| :file:`etc/defaults/global.cfg`
| :file:`etc/defaults/scvoice.cfg`
| :file:`etc/global.cfg`
| :file:`etc/scvoice.cfg`
| :file:`~/.seiscomp/global.cfg`
| :file:`~/.seiscomp/scvoice.cfg`

scvoice inherits :ref:`global options<global-configuration>`.



.. confval:: firstNew

   Type: *boolean*

   Treats an event as new event when it is seen the first time.
   Default is ``false``.

.. confval:: agencyIDs

   Type: *list:string*

   Defines a white list of agencyIDs to alert an event. The
   agencyID is extracted from the preferred origin of the event.
   If this list is empty, all agencies are allowed.


.. confval:: poi.message

   Type: *string*

   The default message string for the event\-script is
   \"earthquake, [HOURS] hours [MINS] minutes ago, [DESC],
   magnitude [MAG], depth [DEP] kilometers\" whereas [DESC] is the
   string given in the event.description attribute. This string can be
   overwritten using one of the following options.
   There are three placeholders that can be used: \@region\@, \@dist\@ and
   \@poi\@.
   Example: \"\@region\@, \@dist\@ kilometers from \@poi\@ away\".


.. confval:: poi.maxDist

   Type: *double*

   Unit: *deg*

   When using the nearest point of interest \(city\) as part of the
   message string, specify the maximum distance in degrees from the
   event. Any point of interest farther away will be ignored.
   Default is ``20``.

.. confval:: poi.minPopulation

   Type: *double*

   Minimum population for a city to become a point of interest.
   Default is ``50000``.

.. confval:: scripts.amplitude

   Type: *string*

   Specify the script to be called if an amplitude
   arrives, network\-, stationcode and amplitude are passed
   as parameters \$1, \$2 and \$3.


.. confval:: scripts.alert

   Type: *string*

   Specify the script to be called if a preliminary
   origin arrives, latitude and longitude are passed as
   parameters \$1 and \$2.


.. confval:: scripts.event

   Type: *string*

   Specify the script to be called when an event has been
   declared; the message string, a flag \(1\=new event,
   0\=update event\), the EventID, the arrival count and the
   magnitude \(optional when set\) are passed as parameter
   \$1, \$2, \$3, \$4 and \$5.



Command-line
============

.. program:: scvoice


Generic
-------

.. option:: -h, --help

   show help message.

.. option:: -V, --version

   show version information

.. option:: --config-file arg

   Use alternative configuration file. When this option is used
   the loading of all stages is disabled. Only the given configuration
   file is parsed and used. To use another name for the configuration
   create a symbolic link of the application or copy it, eg scautopick \-> scautopick2.

.. option:: --plugins arg

   Load given plugins.

.. option:: -D, --daemon

   Run as daemon. This means the application will fork itself and
   doesn't need to be started with \&.

.. option:: --auto-shutdown arg

   Enable\/disable self\-shutdown because a master module shutdown. This only
   works when messaging is enabled and the master module sends a shutdown
   message \(enabled with \-\-start\-stop\-msg for the master module\).

.. option:: --shutdown-master-module arg

   Sets the name of the master\-module used for auto\-shutdown. This
   is the application name of the module actually started. If symlinks
   are used then it is the name of the symlinked application.

.. option:: --shutdown-master-username arg

   Sets the name of the master\-username of the messaging used for
   auto\-shutdown. If \"shutdown\-master\-module\" is given as well this
   parameter is ignored.

.. option:: --first-new

   Overrides configuration parameter :confval:`firstNew`.


Verbosity
---------

.. option:: --verbosity arg

   Verbosity level [0..4]. 0:quiet, 1:error, 2:warning, 3:info, 4:debug

.. option:: -v, --v

   Increase verbosity level \(may be repeated, eg. \-vv\)

.. option:: -q, --quiet

   Quiet mode: no logging output

.. option:: --component arg

   Limits the logging to a certain component. This option can be given more than once.

.. option:: -s, --syslog

   Use syslog logging back end. The output usually goes to \/var\/lib\/messages.

.. option:: -l, --lockfile arg

   Path to lock file.

.. option:: --console arg

   Send log output to stdout.

.. option:: --debug

   Debug mode: \-\-verbosity\=4 \-\-console\=1

.. option:: --log-file arg

   Use alternative log file.


Messaging
---------

.. option:: -u, --user arg

   Overrides configuration parameter :confval:`connection.username`.

.. option:: -H, --host arg

   Overrides configuration parameter :confval:`connection.server`.

.. option:: -t, --timeout arg

   Overrides configuration parameter :confval:`connection.timeout`.

.. option:: -g, --primary-group arg

   Overrides configuration parameter :confval:`connection.primaryGroup`.

.. option:: -S, --subscribe-group arg

   A group to subscribe to. This option can be given more than once.

.. option:: --content-type arg

   Overrides configuration parameter :confval:`connection.contentType`.

.. option:: --start-stop-msg arg

   Sets sending of a start\- and a stop message.


Database
--------

.. option:: --db-driver-list

   List all supported database drivers.

.. option:: -d, --database arg

   The database connection string, format: service:\/\/user:pwd\@host\/database.
   \"service\" is the name of the database driver which can be
   queried with \"\-\-db\-driver\-list\".

.. option:: --config-module arg

   The configmodule to use.

.. option:: --inventory-db arg

   Load the inventory from the given database or file, format: [service:\/\/]location

.. option:: --db-disable

   Do not use the database at all


Alert
-----

.. option:: --amp-type arg

   Specify the amplitude type to listen to.

.. option:: --amp-script arg

   Overrides configuration parameter :confval:`scripts.amplitude`.

.. option:: --alert-script arg

   Overrides configuration parameter :confval:`scripts.alert`.

.. option:: --event-script arg

   Overrides configuration parameter :confval:`scripts.event`.


Cities
------

.. option:: --max-dist arg

   Overrides configuration parameter :confval:`poi.maxDist`.

.. option:: --min-population arg

   Overrides configuration parameter :confval:`poi.minPopulation`.


Debug
-----

.. option:: -E, --eventid arg

   Specify event ID that is used for testing. After running the alert
   scripts scvoice will exit.