Singing is something that many people enjoy both doing and listening to. Singers have years of training to develop their voices and this lecture will look at some of the things that singers are asked to do in their training and it will look at the acoustic effects of these changes that are being made as a result of the learning process. Why can an opera singer sing over a large orchestra to a large audience in a large building with no amplification? What does ‘support’ mean? What are the main acoustic features of the sound of the singing voice, whether pop, rock, country, belt, opera or as a choir member? These and other questions will be considered in this lecture which will feature Dr Helena Daffern as a live singer accompanied by the lecturer, Professor David Howard.