Sound object
Encyclopedia
In music
Music
Music is an art form whose medium is sound and silence. Its common elements are pitch , rhythm , dynamics, and the sonic qualities of timbre and texture...

 a sound object (objet sonore: Pierre Schaeffer
Pierre Schaeffer
Pierre Henri Marie Schaeffer was a French composer, writer, broadcaster, engineer, musicologist and acoustician of the 20th century. His innovative work in both the sciences —particularly communications and acoustics— and the various arts of music, literature and radio presentation after the end...

 1959, 1977, p.95), a generalization of the concept of a musical note, is any sound
Sound
Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the range of hearing and of a level sufficiently strong to be heard, or the sensation stimulated in organs of hearing by such vibrations.-Propagation of...

 from any source which in duration is on the time scale of 100 ms to several seconds.

A sound object may be distinguished from homogeneous and static or invariant note by its heterogeneous and time-varying properties. Sound objects include some events produced in shakuhachi
Shakuhachi
The is a Japanese end-blown flute. It is traditionally made of bamboo, but versions now exist in ABS and hardwoods. It was used by the monks of the Fuke school of Zen Buddhism in the practice of...

 performance, many extended technique
Extended technique
Extended techniques are performance techniques used in music to describe unconventional, unorthodox, or non-traditional techniques of singing, or of playing musical instruments to obtain unusual sounds or instrumental timbres....

s, and in electronic
Electronic music
Electronic music is music that employs electronic musical instruments and electronic music technology in its production. In general a distinction can be made between sound produced using electromechanical means and that produced using electronic technology. Examples of electromechanical sound...

 and electroacoustic music
Electroacoustic music
Electroacoustic music originated in Western art music during its modern era following the incorporation of electric sound production into compositional practice. The initial developments in electroacoustic music composition during the mid-20th century are associated with the activities of composers...

s. (Roads 2001, p.16-18)
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