Cinq études de bruits

Cinq études de bruits (Five Studies of Noises) is a collection of musical compositions by Pierre Schaeffer. The five études were composed in 1948 and are the earliest pieces of musique concrète, a form of electroacoustic music that utilises recorded sounds as a compositional resource.

The five études were composed at the studio Schaeffer established at RTF (now ORTF), Studio d'Essai. They are:

1. Étude aux chemins de fer - trains
2. Étude aux tourniquets - toy tops and percussion instruments
3. Étude violette - piano sounds recorded for Schaeffer by Boulez
4. Étude noire - piano sounds recorded for Schaeffer by Boulez
5. Étude pathétique - sauce pans, canal boats, singing, speech, harmonica, piano

The works were premiered via a broadcast on 5 October 1948, titled Concert de bruits.