The listing below specifies the Main Window parts:
program state icon. It shows current state of the program: recording, playback, paused, stopped;
visualization window. The following visualization types are supported: peak meter (linear), peak meter (logarithmic), wave meter. Right click in the window to open a context menu where you can select a visualization type;
"create/open file" button;
"record/pause" button. You can find detailed information about sound recording in the "How to..." section;
"stop" button;
"playback/pause" button;
volume slider. Allows to adjust a current line's volume;
mixer stream selection button. Opens the playback/recording stream selection menu;
current playback/recording time;
scheduler button. Enables/disables the program scheduler;