1. Signal on/off button

2. Waveform area

3. Waveform colour selector

4. Sine wave selector

5. Square wave selector

6. Triangle wave selector

7. Sawtooth wave selector

8. White noise selector

9. Pink noise selector

10. Brown noise selector

11. Scope/Scroll button - changes waveform from oscilloscope to scrolling view

12. System gain field - shows the setting of the system gain

13. Level bargraph meter

14. Volume slider (%)

15.Frequency slider (Hz) (only visible for non-noise modes)

16. Scroll x-magnitude slider (samples) (only visible in 'Scroll' mode)

17. Audio output select control