 The acoustic analysis of speech signals is a fundamental presupposition to modern phonetics. This requires a precise understanding of the experimental techniques used in the field and the use of suitable software tools. We will explore all that in this unit. In the virtual session, with a total of six educational videos, we will look at waveforms and spectrograms and we'll practice the analysis of formant patterns. Use the question sheet with its hyperlinks and its video links if you want support. The mastery worksheet is an identification task where you have to associate formant patterns with places and manners of articulation. Really challenging, but with the help of the spectrogram analysis videos in the virtual session, you should manage. And the practical is truly analytical. You will be given images of waveforms and spectrograms and have to identify the segments they exhibit. Again, not easy but manageable. So in summary, this is a really challenging unit. But if you go through all the data we provide, you'll be fine.