
GKIm Hosanna - Youth Ministry Hall Acoustic Treatment

"I consider myself as a musician. I want the congregation to listen to the music and worship wholeheartedly, not being disturbed by the room acoustic defects. Let them being immersed in the music, not in the echoes."
- Limesa Design
This was a project dedicated for the youth ministry in GKIm Hosanna, Bandung.
Young souls enjoy spiritful music, and consequently, contemporary instruments started to infiltrate church music. Churches which were dominated by classical music, soft piano sound, and heavenly choir voices, had shifted towards a more contemporary style in which distorted guitar and crashing cymbals are now replacing the earlier styles. We didn't think that we need to restrain the change, but instead, we need to embrace the musical advancement, so religion won't be considered as a thing in the past.
In order to accommodate these musical changes on religious songs, a different acoustical approach is necessary to enable the congregation to feel blessed by the worship. The hall was untreated and filled with echoes and reverberation which were nice for piano and choirs, but will induce the noisiness of drums and electric guitars. Therefore, limiting the sound reflection is considered necessary in order to control the reverberation inside the hall. A mixture of wooden panels and glass wool panels were designed to limit the reflection while at the same time randomizing the sound reflections to make a diffused sound field.
Ax extra small control room was also added to manage the sounds emitted from the installed sound systems.
![]() Overall View of the HallAs a room functioned for Sunday services, it is best if the echoes can be eliminated to prevent people being disturbed by the acoustic defects. | ![]() Absorbent and ReflectorThe wall is treated using glass wool and wooed panels. The height of the treatments are also made uneven to induce a more diffused sound field. | ![]() Stage ViewWooden uneven wall treatment is installed on the side walls of the stage. This wall diffuses the sounds before transmitting them towards the congregation seats. |
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![]() Circular Back WallThe original room has a curved wall against the main stage that causes sound centralization acoustic defect. Sound absorbents were installed as a wall treatment to reduced the focused reflection. | ![]() Control Room ViewA control room was designed as an extension in order to manage the pre-installed sound systems. |