Sound Waves And Their Sources
Zvukové vlny a jejich zdroje
Sound is ScienceFilmEnglish friendly
A short, educational Encyclopaedia Britannica film production discusses the basics of acoustics, the way sound travels through an environment and its pitch, colour, and volume, all in an understandable manner.
Sound sources and sound wave characteristics are displayed using oscilloscopes and animated diagrams. A ninety-year-old film from the cinematography era in which sound began to transform the film industry fundamentally.