The Journal of the Acoustical Society of Korea (한국음향학회지)

The Acoustical Society of Korea (한국음향학회)
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Design for the Reflection Free Zone with the Adequate Initial Time Delay Gap at the Control Room

음향조정실에서 적절한 초기지연시간을 갖는 무반사지역의 설계연구

  • Published : 2007.01.31
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Abstract

The control room has been usually designed by the consideration of only one listening position for the sound engineer. By this study. many listening positions with the very similar acoustical condition were located in the specific region, so-called 'the reflection free zone', where the several engineer could evaluate the quality of sound at the same time. For constructing the reflection free zone, the control room has been designed by the concept of the $LEDE^{TM}$, and the initial time delay gap has been controled by the structure of control room and the properties of sound-absorbing materials. diffuser, Helmholtz resonator and image source of sound. The occurrence of any harmful phenomena like the standing wave, acoustic focusing. coloring. Hass effect and flutter echo, has greatly reduced in the reflection free zone.

엔지니어의 모니터링 위치가 한 지점에만 한정되어 있는 음향조정실의 기존개념을 여러 사람이 동시에 작업할 수 있는 지역적인 방식으로 개선하였다. 이를 위하여, Davis의 $LEDE^{TM}$ 방식을 도입하였고, 내부의 구조 및 흡음재료의 특성, 확산기 및 저역흡음기의 설치와 음상법 등을 활용하여 초기시간지연을 제어하였다. 따라서 여러 엔지니어들이 서로 유사한 음향특성 하에서 동시에 소리를 모니터링 할 수 있는 무반사지역을 형성시켰다. 뿐만 아니라, 음향조정실 (특히 무반사지역) 안에서 정재파, 음향초점, 컬러링, 하스효과 그리고 플러터 에코 등의 발생을 억제하거나 크게 감소시킬 수 있었다.

Keywords

References

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