Tutorial
It's really easy to use MovingEGG. In the simplest form, it is a three-step process and you're done. Here is a quick guide (optional steps are written in a smaller font size):
  • Select some files to analyze: Click on the button 'Add' to choose which files to analyze. You can select multiple files with this option. MovingEGG is able to analyze mono and stereo WAVE files [ *.wav ] (in the latter case the second channel is treated as the EGG signal), and files saved by VoceVista [ *.vis ].
    If you're not content with your file seclection, you have always the possibility to remove several files from the list by selecting them and clicking 'Remove', or to clear the entire list by clicking 'Clear'.
  • Directory/File Treatment: MovingEGG allows you to analyze whole directories, and even all of their sub-directories. You can activate these options by selecting the radio-button 'Entire Directory(ies)' or 'Include All Sub-Directories'.
  • Choose an output file extension: The file extension you have chosen will be appended to the file name of the analyzed file, to form the movie file name. MovingEGG will automatically add '_norm.avi' or '_orig.avi' to the output file name, dependent on whether you selected the 'Normalize Cycles' o the 'Original Cycle Height' option (see below).
  • Specify an image width (in pixels). Please realize that increasing the image width will decrease performance a bit.
  • Specify an image height (in pixels). Please realize that increasing the image height will decrease performance a bit.
  • Specify the cycle graph decay time: Every image (there are 25 images per second) in the generated movie can be faded out, to smooth out the appearance of the single EGG cycles. Values between zero and two seconds are accepted.
  • Normalize Cycles: If this option is selected, every single cycle is normalized, i.e. it covers the whole vertical range of the image. This option allows for steady cycle images even if there is a lot of vibrato or some other perturbation in the EGG signal.
  • Original Cycle Height: If, however, you are more interested to see the amplitude of the EGG signal (which is sometimes interesting in order to determine register transitions), it is recommended to select this option. Please note that you can select both the 'Normalize Cycles' and the 'Original Cycle Height', which will result in two output movies.
  • Keep temporary data images: This option might be useful if you want to post-process the generated image graphs. It is not recommended to use this feature, since it might (especially with bigger files) fill the temporary directory with some thousands of images.
  • More analysis/output options can be accessed by clicking the 'Options' button on the lower right part of the main window. Those additional options include color information for the generated movie file and information whether or not (and how) the first derivative of the EGG signal (usually called 'DEGG') should be computed.
  • Finally: click on 'Run' to start the analysis process.
  • The progress bar in the bottom part of the window informs you about the progress of the analysis process, the log window contains some debug information in case you want to know what is going on behind the scenes.
  • After the file has been analyzed you will find one or two AVI movie files in the directory where the file(s) you analyzed is/are stored. Those movie files can be viewed with most movie viewers (depending on which codec/compression scheme you selected upon program installation). We recommend using the free VLC player.