The invention relates to a sound generating system and a scarf barrel drawing system, which are placed in a space, in order to adjust the sound. A column-shaped body is arranged around a sound source, in order to set how much sound of a low-frequency range region, as well as a means - and absorbed and reproduces is scattered. In addition, a column-shaped body around a recording apparatus, in order to set how much sound of a low-frequency range region, as well as a means - and absorbed and reproduces is scattered. The cylindrical body can be made of a combination of different diameters and / or lengths be produced. The arrangement of distances can be randomly. With a placement of the columnar body to the best location, it is possible to adjust the sound in a broad band.
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