Optional Practical: Sliding whistle
In this practical the frequency of the note from a slide whistle (bought from Ebay) will be measured using the programme Audacity, this is a free programme that can be downloaded from http://audacity.sourceforge.net/ . Before starting the practical download audacity and play with it to find out how to record sounds, magnify the signal and measure the time period. After a bit of trial and error you should be able to...