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## 5.3.1 Signal

All menu items in this menu have something to do with the filelist and the storage of the signals.

- LOAD

  This menu item simply loads data into the GUI (more precise: load a signal and save it to the temporary data directory). A line in the fileview will be added with its filename.

- SAVE

  Write the marked signal in the fileview to disk.

- IMPORT FILE FROM

  Generate a signal from foreign formats like `ASCII, Matlab Vector, Soundfiles` etc. See signal class constructor reference (6.20.3.66) for more information.

- EXPORT FILE FROM

  Write the marked signal in the fileview to disk in a foreign format. See `signal/write` reference (6.20.3.83) for more information.

- GENERATE

  This menu item can generate signals. See `mex/chaosys` reference (6.6).

- AUDIO PLAYBACK

  Plays a scalar signal as audio with the matlab function `soundsc`. If there is no sampling rate set in the signal 8KHz will be used.

- RESCAN

  Normally all files with the correct extension in the temporary directory are displayed in the filelist. For some reason it is possible that a signal is displayed in the filelist but doesnt exist (e. g. an other process deleted this file) or some files missing in the filelist (e. g. if you simply copy a signal file in the temporary directory without using the LOAD menu item). In such situation use the RESCAN menu item to let TSTOOL look up all files again correctly. This can take some time on slow machines or large signal files. Simply restarting the GUI will not make a rescan!

- REMOVE ENTRY

  If you want to remove a filelist entry use this menu item or simply type Ctrl-d. The selected filelist entry will disappear and the corresponding temporary file will be deleted.

- SHOW

  A signal stores many information about the data. This information can be displayed by this menu item.

- EDIT
  - DESIRED TYPE OF PLOT

    Here you can choose the type of plot TSTOOL should use for your signal. See signal/view reference (6.20.3.82) for additional information.

  - DESCRIPTIVE PARAMETERS
  - AXES LABELS
  - COMMENT TEXT

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