EDFbrowser full changelog

· Solved a bug that caused a crash when saving an EDF- or BDF-file
· after importing annotations.
· Changed the quot;Export ECG RR-intervalquot; tool in such a way that you can easily
· export the whole recording.
· Also, now it's possible to import them as annotations directly.
· The tool quot;Import annotations/eventsquot; can now also import the duration
· of an annotation/event (from ASCII- or XML-files).
· Added the possibility to hide or unhide annotations from the screen.
· Right-click on an annotation in the annotationswindow.)

· Solved a bug that caused a crash when the quot;Abortquot; button was clicked when opening a BDF-file.
· Solved some small bugs and made some enhancements.
· Updated Qt to 4.8.1.

· 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 quot;Settings -> otherquot; 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.

· 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).

· Fixed a bug that caused the quot;print to PDF / Postscript / Imagequot; to fail when non-ascii characters where present in the new filename.
· Fixed a bug that caused quot;printing to imagequot; 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.

· Fixed multiple bugs related to annotation markers and EDFplus feature to use subsecond precision in the start time of the file. (Only affects files that uses the subsecond start time offset EDF+ feature.)

· 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.

· Added the possibility to reduce the samplerate of one or more
· signals in the tool quot;Reduce signals, duration or sampleratequot; (Tools menu).
· Added the possibility to change/edit the starttime/date of a file with the EDF/BDF
· header editor (Tools menu).
· The Statistics dialog shows also the number of zero-crossings and the frequency of a
· signal.
· The Nihon Kohden to EDF+ converter now processes also the Trigger/Marker channel.
· For example, photo- or dc-triggers will be processed by the converter and can be
· displayed by EDFbrowser.
· Fixed a bug in the signalcurve (graph) of the averaging window, when
· quot;invertquot; was selected, the vertical ruler could disappear.
· Fixed a bug in the floating ruler.
· Raised the maximum amount of signals per file limit from 256 to 512.

· Fixed another bug related to annotationmarkers and EDFplus feature
· to use subsecondprecision in the starttime of the file.
· Updated Qt to 4.7.4

· Fixed lots of regression bugs introduced with version 1.37.
· Fixed a bug related to annotationmarkers and EDFplus feature to use subsecondprecision in the starttime of the file.
· Fixed a bug in the ascii to edf converter that caused to produce an invalid edf file when all samples in have value quot;0.0quot;.

· Removed the limitation that no more annotations can be saved than the amount of datarecords. EDFbrowser could only write one annotation per datarecord. From now on, if there are more annotations than datarecords, the size (smpls/record) of the annotationchannel will increase automatically in order to fit multiple annotations as needed.