BioSemi.nl

EDFbrowser ver. 1.19 is available.
Besides some enhancements and bugfixes,
extra filters have been added:

1th to 8th order Butterworth, Chebyshev
(with adjustable passbandripple) and
Bessel filters.

Lowpass, highpass, bandpass, bandstop and
a Notchfilter with adjustable Q-factor.

http://www.teuniz.net/edfbrowser/

EDFbrowser ver. 1.20 is available.
Besides some enhancements and bugfixes, a powerspectrum analyzer has been added.

http://www.teuniz.net/edfbrowser/

EDFbrowser 1.31 is available.

Added a streaming mode. The stream must be a "growing" file.
This mode can be used when you have an aquisitionprogram running that
writes BDF (or EDF). While the aquisitionprogram writes the data to the file,
you can use EDFbrowser to watch (monitor) the actual data. EDFbrowser will
regularly check the actual filesize and show the
last part of the file i.e. the most actual/recent data.

This can be usefull for example, when you want to write your own
aquisition/recording driver/program and don't want to create your own
grafical monitor.

http://www.teuniz.net/edfbrowser/

EDFbrowser 1.33 is available.

Changes:

- Added the possibility to import/extract triggers/events from/recorded on a dc-coupled channel.

- Added the possibility to perform "averaging" (evoked potentials or other triggers)
using (imported) annotations, events or other kind of triggers
(also Biosemi's trigger input's).

- Added a WAV to EDF converter.

- Modified the Nihon Kohden to EDF converter so that it will use the electrodenames defined
by the user in the aquisition software.

- Fixed a bug that caused writing a wrong value in the datarecorddurationfield of the header
when saving annotations and when the number in the datarecorddurationfield of the sourcefile
has more than six digits after the dot.

- Fixed a bug related to a rarely used EDFplus feature to use subsecondprecision in the starttime
of the file. Some tools ignored this feature, this has been fixed.

- Updated Qt to 4.7.2


You can download it here: http://www.teuniz.net/edfbrowser/

EDFbrowser 1.34 is available.

Changes:

- Added ECG heartrate detection (it calculates beats per minute from the ECG-waveform).

- Added the possibility to import annotations, also from discontinues EDF+D or BDF+D files.

- Added mousewheel scrolling.

- Added the possibility to save the data from averaging as EDF/BDF.

- Added the possibility to (re-)organize (re-order and/or invert) the signals on the screen in an easy way via Menu -> Signals -> Organize.

- Modified the annotation editor, from now on annotations with an onsettime more than 24 hours can be edited as well.

- Solved a bug that prevented a messagebox to appear when trying to open a BDF+D file.

- Changed the way the onsettime of the annotations are presented.

EDFbrowser 1.42 is available.

Changes:

- Fixed a problem with EDFbrowser not capable to
handle filenames and/or directories that contain
non-ascii characters. From now on, filenames/paths
will be handled and saved using the local 8-bit
encoding.

- Added multi-threading capabilities to the drawing engine.
EDFbrowser will now use all available cpu-cores in your system
to speedup the drawing of the signals.

http://www.teuniz.net/edfbrowser/

EDFbrowser 1.46 is available:

http://www.teuniz.net/edfbrowser/

Changes since version 1.42:

version 1.46 April 13, 2012
------------

- Solved a bug that caused a crash when the "Abort" button was clicked
when opening a BDF-file.

- Solved some small bugs and made some enhancements.

- Updated Qt to 4.8.1.


version 1.45 March 31, 2012
------------

- Added the possibility to disable scanning for annotations or triggers
when opening a file, depending of the filesize.
This can be usefull when working with big files that take
a lot of time to read-in annotations, events or triggers.
(Due to the nature of the EDF-format, the annotations-channel(s)
needs to be read from the beginning till the end of the file.)
In the "Settings -> other" dialog you can adjust the filesize
which above EDFbrowser will not scan the file for annotations.
(between 100 MB and 10 GB)

- extended the capabilities of the header-editor. Now it can also fix
files that have a wrong number of datarecords written in the header
or when the file does not end at the boundary of a datarecord.
See the manual for the details.

- Improved the ECG heartrate detection algorithm.

- Fixed some bugs related to signals with inversed polarity
(i.e. when physical maximum is lower than physical minimum).


version 1.44 March 4, 2012
------------

- Fixed a bug that caused the "print to PDF / Postscript / Image" to fail
when non-ascii characters where present in the new filename.

- Fixed a bug that caused "printing to image" drawing the signals too thick
and wrong rulers.

- Fixed a bug in the ECG heartrate detection algorithm that could cause wrong
measurements with high heartrates (more than 120 bpm).

- Added Mousewheel zoom-in/out by pressing the Ctrl-key.


version 1.43 Februari 17, 2012
------------

- Fixed multiple bugs related to annotationmarkers and EDFplus feature to use subsecondprecision in the starttime
of the file. (Only affects files that uses the subsecond starttime offset EDF+ feature.)

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