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GstLAL provides a suite of GStreamer elements that expose gravitational-wave data analysis tools from the LALSuite library for use in GStreamer signal-processing pipelines. Examples include an element to add simulated gravitational waves to an h(t) stream, and a source element to provide the contents of .gwf frame files to a GStreamer pipeline.

Project Librarians

  • Kipp Cannon. e-mail: kipp.cannon at
  • Chad Hanna. e-mail: chad.hanna at



Pre-built packages for RPM- and Debian-based operating systems and Mac OS X are available through standard distribution mechanisms. For more information visit the DASWG Software Repositories page (Software Repositories link is also available at left under Downloads).

Source releases of gstlal projects can be found in the DASWG source repository at The projects are built using the standard configure ; make ; make install sequence.

The latest development version of gstlal is available from the LSCSoft repositories. After following these instructions, the repository can be cloned with
$ git clone

$ git clone

You may also browse the gstlal git repository using the LIGO gitlab web interface.

Bug Tracking

Bugs, feature requests and so on are tracked in the gstlal projects in

Links to software required by gstlal. Links to optional software used with gstlal. Links to software used internally by gstlal whose authors we thank!
  • Bottle: Python web micro-framework.
  • emcee: The MCMC Hammer.


gstlal developers should subscribe to the lal-discuss and gstlal-discuss mail lists.

Sometimes we hang out in IRC on Freenode in the #gstlal channel.

Minutes for the weekly telecons are available here (password protected).


Ajith P., Cannon K., Cariou R., Burguet-Castell J., Crispin-Ortuzar M., Daudert B., Fotopoulos N., Frei M., Hanna C., Hooper S., Keppel D., Mercer A., Pankow C., Privitera S., Searle A., Singer L., Wade M., Chu Q.

Topic revision: r17 - 2019-05-06,
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