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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; beamforming, direction finding, level histogram, LOFAR/DEMON (narrowband spectrogram), wideband spectrogram, and raw audio.


Programmer reference in PostScript, HTML formats from


version 1.7.0 (developmental)
released on 26 October 2003

Paid tachnical support available from

VCS Checkout



LicenseVerified byVerified onNotes
GPLv2orlaterJanet Casey6 May 2002

Leaders and contributors

Jussi Laako Maintainer

Resources and communication

Audience Resource type URI
Developer VCS Repository Webview
Bug Tracking VCS Repository Webview

Software prerequisites

Kind Description
Weak prerequisite comedi
Required to use freetype
Weak prerequisite Pth
Required to build libDSP
Weak prerequisite flac
Required to build libsndfile
Weak prerequisite gsl
Required to build ImageMagick
Weak prerequisite MOI
Weak prerequisite alsa
Required to use GTK+

This entry (in part or in whole) was last reviewed on 28 January 2010.


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

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