A Web Tutorial by Mark Huckvale






In this tutorial you will learn about our sense of the loudness of sounds.


If you complete the tutorial, you will learn about


         The subjectivity of loudness

         Elements of the hearing mechanism important to loudness sensation

         The limits and range of the sensation of loudness

         The physical correlates of loudness

         The Sound Pressure Level scale

         Methods to estimate the loudness of pure tones and complex sounds

         Spectral weighting measures used in sound meters

         The meaning and cause of loudness recruitment


You will find the tutorial easier to understand if you have some knowledge of the basic acoustics of sound waves.


To hear the audio examples in the tutorial you will need to be running Internet Explorer or have a Plug-In that supports WAV files (e.g. Quick-Time). If you are having problems with audio, visit our browser audio plug-in help page.