Projects / HASAS

HASAS

HASAS (HydroAcoustic Signal Analysis System) is a modular system for passive sonar signal analysis. It can be used for biological research or surveillance, for example. The soundcard is used as input device, and it currently includes all the very basic functionality; beamformed audio, direction finding, level histogram, LOFAR/DEMON (narrowband spectrogram), wideband spectrogram, and raw audio.

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Recent releases

  •  26 Oct 2003 20:15

    Release Notes: Bugs in the XMMS output plugin have been fixed. Support for Intel Integrated Performance Primitives (IPP) has been added. A long standing bug in DEMON processing has been fixed.

    •  16 Jun 2003 21:47

      Release Notes: Fit-to-screen support on spectrogram and LOFAR/DEMON displays. Switched from Imlib2 to ImageMagick.

      •  19 Apr 2003 20:50

        Release Notes: An XMMS output plugin for feeding data to analyze has been added. FLAC support has been updated to version 1.1.0. Use of the LAM/MPI Trillium library is now optional. A number of smaller bugfixes and feature improvements were made.

        •  05 Oct 2002 22:10

          Release Notes: Support for FLAC 1.0.3, libsndfile 1.0, GTK+ 2.0, and comedi have been added. IIR multirate filters are now supported. A new normalization method for LOFAR/DEMON has also been implemented.

          •  25 May 2002 21:04

            Release Notes: This release contains all the changes made in previous development releases, full support for beamforming in all modules, and a new tool for adding information to the saved TIF images.

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