What's Changed

• Update dabstar.pro by @old-dab in #57
• Update pad-handler.cpp by @old-dab in #58
• More accurate estimate of coarse frequency correction by @old-dab in #59
• Faster coarse frequency synchronisation by @old-dab in #60
• Show library version numbers in copyright window by @old-dab in #61
• Bugfixes for Qt < 6.7.0 by @old-dab in #62
• SpyServer support but untested and so only experimental.
• Fast advance/fast backward for SDR/XML/RAW file playback. Not (yet) possible for UFF/XML files.
• MOT slides are now stored in the home folder (if activated). Duplicates are rejected to be stored again.
• MOT slides are loaded faster in certain constellations.
• IQ scope with exponential zoom.
• Some further improvements.

For Windows version see: https://github.com/old-dab/DABstar/releases/tag/v3.11.0

Full Changelog: V3.10.0...V3.11.0

What's Changed

• Show standard deviation of frequency correction by @old-dab in #54 .
• Bugfix in PAD decoder for non-commercial radio stations in Lower Saxony by @old-dab in #55 .
• Improved Scan reliability.
• Reset audio mute if volume slider is used.
• Set default AGC mode to enabled in SDRplay handler.
• Clean up (unused) UI elements.
• Fix antenna selector storage for SdrPlayV3.

Full Changelog: V3.9.0...V3.10.0

What's Changed

• Show Channel Impulse Response (CIR) for a whole DAB by @old-dab in #50.
• Speed-up by using VOLK the CIR-viewer by @old-dab in #52.
• Also using VOLK for less CPU loaded PRS time synchronization.
• Many small refinements to speed up runtime.
• New buttons added for TII and CIR. Because of lack of space the buttons are now located on the left and right side of the MOT display.
• A volume slider is added to the main window.
• The underlying setting management has changed. Unfortunately the old setting file could not be used further so you have to do some of the settings again, like provide the map coordinates of your home location. If you want you can look for them in the old setting file in ~/.config/dabstar/settings02.ini. Look for the entries latitude and longitude.
• The zoom sliders in correlation view and the new volume sliders are automatically stored in the settings.
• New style of the sliders to fit the volume slider better into the main window.

See README.md for pictures.

Full Changelog: V3.8.0...V3.9.0

What's Changed

• Upgrade to Qt 6.8.3.
• Refactor audio interface that it works also with Qt 6.8.2 with windows.
• If using FAAD decoder, a fix was made. This AppImage still uses FDK-AAC.
• Fix another audio buffer issue.
• Smoother changes between different carrier plot selections.
• TII detection is always working now, even with no active extra TII list window.
• Improved TII database handling.
• Main window shows a simplified TII lists of all detected stations. It iterates all 2s to the next entry. This behavior is switchable in the configuration settings.
• Clearer handling of maybe still not provided receiver location map coordinates.
• Many cleanups.

Full Changelog: V3.7.0...V3.8.0

What's Changed

• Add loop switch for raw and sdr files by @old-dab in #46 .
• Takeover PAD-handler fix from Qt-DAB (some services showed repeated text elements).
• Make minor GUI changes to adapt different Qt versions.
• Further improvements for spiral Viterbi by @old-dab. Supports Scalar, SSE2 (here used), AVX2 variants.
• Many cmake and file clean-ups.

Full Changelog: V3.6.0...V3.7.0

What's Changed

• Update for windows and better performance for soft decision 2 by @old-dab in #41
• Reset buffer after stopping the reader by @old-dab in #42
• Support 3 Soft-Bit calculation methods. The first default is the best for nearly almost receiving conditions.
• Further increase OFDM calculation speed using CPU intrinsics.
• Using new Volk 3.2.0 für CPU intrinsics.
• Minor changes in GUI elements.
• While file-playing a new button in the main window lets easily select a new file.
• Many changings under the hood.

Full Changelog: V3.5.0...V3.6.0

What's Changed

• Adaptations to Windows by @old-dab in #33.
• Turn phases of non-ETSI-TIIs much faster by @old-dab in #34.
• Avoid 1.5 FFTs per DAB frame by @old-dab in #35.
• Remove some more warnings from windows build by @old-dab in #36.
• Faster Viterbi decoder by @old-dab in #38.
• Improve device AirSpy be @old-dab.
• Improve device SdrPlayV3 be @old-dab.
• Improve device HackRf.
• New virtual device "File input autoplay" which automatically restarts playing a file after startup.
• Use SIMD intrinsics with the help of VOLK to speed up the OFDM processing.
• One single slider for zooming into spectrum and waterfall scope.
• On main display the audio sample rate, the Reed Solomon decoding error and CRC error are shown.
• Minor UI changes.
• Fix in change of audio sample rate.
• Other minor improvements and fixes.
• Remove warnings on new compilers.

Full Changelog: v3.4.0...V3.5.0

What's Changed

• Many refactorings and cleanups.
• RTL-TCP device improved by @old-dab.
• Adapted antenna switch for RSPduo (but not tested) by @old-dab.
• Update for Windows by @old-dab in #29.
• Delete obsolete files by @old-dab in #30.
• Improvement by @old-dab for DC compensation while file readings made from RTL-SDR sticks.
• Add TII plot with values shown in dB (the one in % is kept).
• The TII scopes get colored segment markers to better see the regarding main id and sub id.
• Fix problem with audio buffer underrun with some HE-AAC input sample rates.
• Minor fixes and removing typos.
• Simplify FFT handling (got a bit faster).
• The audio spectrum display gets more reactive to the audio.
• Zoom and Pan of correlation and carrier plot enhanced with extended zooming-out capability (see below).

Behavior of the Zoom and Pan has to be changed a little:

• Press <CTRL> key while mouse action for vertical zooming, panning and reset zoom.
• Press <SHIFT> key while mouse action for horizontal zooming, panning and reset zoom.
• Use mouse wheel for zooming.
• Press left mouse button for panning.
• Press right mouse button to reset zoom.

Full Changelog: V3.3.0...V3.4.0

AppImage of DABstar V3.3.0, based on Ubuntu 20.04, tested on Ubuntu 24.04.

• TII and Viterbi soft-bit generation improvement by @old-dab
• Improved zoom and panning in correlation and carrier scope (see also tooltip):
  • Use mouse wheel for horizontal zooming.
  • Press CTRL key additionally for vertical zooming.
  • Press left mouse button for panning.
  • Press right mouse button to reset zoom.

Full Changelog: V3.2.0...V3.3.0

AppImage of DABstar V3.2.0, based on Ubuntu 20.04, tested on Ubuntu 24.04.

• Many, many adaptions and includes from old-dab.
  • Improved TII decoding.
  • Show found TII information in an extra list.
  • Improved TII map on browser.
  • Zooming ability on correlation spectrum and carrier view.
  • Improved and additional Viterbi soft-bit generation algorithms.
  • Improved Viterbi-Decoder.
• First audio selection issue solved.
• Of course other minor fixes resp. improvements.

Still known problems:

• The audio buffer got an underflow after a while at service with certain bitrates like 104 kBit/s.
• Minor other things (stored on my private TODO list)

Full Changelog: V3.0.1...V3.2.0