A compilation of resources for designing units on the study of sound and waves, including real--time graphs, for middle and high school investigations.
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Raven Lite is a free software program that lets users record, save, and visualize sounds as spectrograms and waveforms. Raven Lite is intended for students, educators, and hobbyists, and can be used for learning about sounds, as an aid in birdsong recognition, and in musical instruction