A mini acoustic chamber for small-scale sound experiments

Abstract

This paper describes the design and construction of a mini acoustic chamber using low-cost materials. The primary purpose is to provide an acoustically treated environment for small-scale sound measurements and experiments using ≤ 10-inch speakers. Testing with different types of speakers showed frequency responses of < 10 dB peak-To-peak (except the "boxiness"range below 900 Hz), and the acoustic insulation (soundproofing) of the chamber is highly efficient (approximately 20 dB SPL in reduction). Therefore, it provides a significant advantage in conducting experiments requiring a small room with consistent frequency response and preventing unwanted noise and hearing damage. Additionally, using a cost-effective and compact acoustic chamber gives flexibility when characterizing a small-scale setup and sound stimuli used in experiments.