News
====

2026-06-14
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- Enhanced trigger
- Alligned style in all views
- High DPI support

2025-04-05
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- Add sin(x)/x interpolation in oscilloscope view
- Add wobble sine in generator (slightly frequency modulated sine wave)
- Add GutHub actions (build pipeline)
- Rework oscilloscope channel range to full scale factor
- Update dependencies
- Refactor code
- Fix reversed left and right label in generator

2024-07-28
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- Rearrange oscilloscope view
- Normalize vertical settings to +- 1V and adapt settings
- Remove DC from Spectrum
- Fix clipping region in graph
- Add ccpcheck and clang-tidy settings
- Refactor code using above tool hints

2024-02-18
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- Refactor interface between AudMeS and CtrlOscope: Pass time or frequency
  data (y axis) along with magnitude (x axis).
- Rewrite graph code taking advantage of the y axis data.
- Add save function to oscilloscope and spectrum.
- Use time instead of samples in oscilloscope.

2023-10-24
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- Add simple moving average in spectrum view.
- Rearrange spectrum view and increase refresh rate.
- Remember selected device in configuration window.
Code was contributed by user Johannes.

2023-04-09
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- Add mono channel support as requested by users.
- Refactor several files.
- Drop frequency measurement in oscilloscope - spectrum does it now
  and can be run in parallel. Gives better resolution and magnitude.

2022-10-09
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- Update README with binaries installation and Visual Studio instructions
- Fix frequency response export in Windows
- Add Visual Studio and MSVC support
- Update RtAudio to 5.2.0
- Increase font size in legend

2022-04-20
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- Display base frequency, magnitude and THD in spectrum.
- Add Blackman-Harris window function.
- Increase resolution (> 16 bit) using floating point audio data.
- Catch more errors to avoid crash.
- Compile in DirectSound and WASAPI on Windows.
- Use timer loop instead of sleep for frequency response.

2021-11-04
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- Reformat README.md and fix instructions.
- Update to latest RtAudio.
- Switch to WASAPI on Windows.
- Add package creation with CMake.
- Set CMake build type to Release as default.
- Add build instructions for MacOSX.
- Fix Blackman window function.
- Display RtAUdio info in About popup.
- Compile Linux with Alsa and Pulseaudio support.
- Avoid crash when sound card channels are mono or missing.

2021-03-14
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- Use pulseaudio on Linux up to 192000 samples/s.
- Catch sound card issues and show message in initialization.
- Optimize screen repaint.
- Improve graph and legend display.
- Add Debian package support in CMake.
- Add compiling instructions for Linux and Windows 10.
- Add white noise to generator.
- Use RMS level in frequency response instead of peak.

2020-09-24
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- Improve FFT interpolation.
- Add second channel to frequency response.

2020-07-01
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- Migrate to CMake.
- Migrate README to markdown and move change list to NEWS.
- Migrated project from subversion to git.

2019-09-25
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- add FFT window functions Hanning and Blackman.
- add spectrum scaling according to sample rate.
- modify spectrum view 10 Hz - 100kHz, 0 - -100 dB.
- fix sound card dialog (available frequencies).

2019-09-22
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- update RtAudio to version 5.1.0

2018-??-??
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- Updated code to compile with current compilers on Linux.
- Updated code to compile with recent versions of rtaudio and
  wxWidgets.
- Documented the choice of GNU GPL v2+ as source license.
- Added code to save and load frequency response data as CSV.

2008-08-27
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- sound card switching works; but problems when using different sound cards
  for input and output

2008-08-26
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- changed colors for numbers in scopes
- OSC - L channel measures frequency - FFT
- "Audio Interface" Dlg extended with sampling frequency
- "Audio Interface" Dlg shows available interfaces but settings do not work yet

2008-08-25
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- first Linux port!!! - compilable with wxGTK-2.6.4 wth GTK2 and
- UNICODE; a plenty of problems:
  - GEN gauges do not work as expected
  - glitches in generator
  - wxTextCtrls do not react to ENTERs
- SA - variable FFT length
- SA - right channel is added
- SA - averaging of FFT values introduced

2008-08-22
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- renamed OScopeCtrl->CtrlOScope; double buffering and some other features
  added
- #define for switch XScale to microseconds/div - but a lot of problems with
  strange modulation

2008-08-21
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- first working version of AudMeS with RtAudio driver - MinGW compiler
- Select Sound Card dlg does not work; default device is used

2008-08-20
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- rewrite of audio driver started - RtAudio will be used now

2008-08-15
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- added rectangular, triangle, saw generators
- added auto calibration of Y scale ; offset is not changing
- prepared for load/save of configuration
- added menu accelerators

2008-06-06
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- triggering completely changed; currently missing control of trigger
  level and trigger hysteresis
- changed description of X scale and X resolution
- in Makefile.gcc changed directory delimiters in "clean" target

2008-06-04
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- Added text controls to set generator frequency more preciously
- phase between L and R channels is now in degrees (before it was radians)

2007-07-25
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- Project renamed to AUDio MEasurement System - AudMeS

2007-07-15
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- RWAudio_win - velky prepis modulu
- Sweep funguje - netestovano v realnem prostredi

2007-07-12
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- AudioLab.cpp: OSC - Amplituda zmenena na dB
- AudioLab.cpp: OSC - synchronizace L a P kanalu
- RWAudio.h: pridan parametr faze do PlaySetGenerator()
- RWAudio.cpp: pridana glob_phase1 a glob_phase2

2007-03-27
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- audiolab.h: zmena zobrazeni verze - ta je ted v AUDIOLAB_VERSION_STRING
- AudioLab.cpp: pridan vyber SND karty - NEDOKONCENO
- dlg_audiointerface.cpp: NOVY - dialog vyberu IN/OUT zarizeni
- RWAudio_win.cpp: pridano GetPlayDev() a GetRecDev()
- RWAudio_win.cpp: slouceni Rekorderu a Playeru - NEDOKONCENO, NEKONZISTENTNI!!!
