welle.io uses external and internal libraries and make extensive use of the following persons' or companies' code:

QT - Copyright (c) The Qt Company, www.qt.io - LGPL Version 2.1
FFTW3 - www.fftw.org - GPLv2 license or later
Kiss FFT - www.sourceforge.net/projects/kissfft - Mark Borgerding - BSD 3-clause license
MPG123 - Copyright (c) 1995-2018 by Michael Hipp and others - LGPL Version 2.1
FAAD2 - Copyright (c) Nero AG, www.nero.com" - GPLv2 license or later
rtl-sdr - https://osmocom.org/projects/sdr/wiki/rtl-sdr - GPLv2 license or later
airspy - https://github.com/airspy/airspyone_host - GPLv2 or later and BSD 3-clause license
fec - Copyright 2003 Phil Karn, KA9Q - LGPL Version 2.1
frequency-analyzer - https://github.com/Venemo/frequency-analyzer, Timur Kristóf - MIT license

welle.io uses parts from the following programs 
- qt-dab
  Copyright (c) 2009-2017 Jan van Katwijk Lazy Chair Computing (J.vanKatwijk@gmail.com)
  https://github.com/JvanKatwijk/qt-dab
- dablin
  Copyright (c) 2016 Stefan Pöschel
  https://github.com/Opendigitalradio/dablin
- headunit-dekstop
  https://github.com/viktorgino/headunit-desktop

Icons:
- Navigation icons made by Gregor Cresnar from www.flaticon.com (License CC 3.0 BY)
  (http://www.flaticon.com/authors/gregor-cresnar)
- Speaker, play, stop icons made by https://www.freepik.com from https://www.flaticon.com/
  (https://www.flaticon.com/de/packs/media-and-technology)
- Antenna icon made by photo3idea_studio from www.flaticon.com (License CC 3.0 BY)
  (https://www.flaticon.com/authors/photo3idea-studio)
- Application icon made by Freepik from www.flaticon.com (License CC 3.0 BY)
  (http://www.freepik.com) 

Other:
Notice some of these images are derived from Google applications resources.
They were provided under the following license:
You may use the materials in this directory without restriction to develop your apps and to use in your apps.
