Acoustic chamber ：Widely used in a variety of audio testing and improve the test environment, the sound box products can do the background noise25db~30db.I Secretary for many years through the accumulation of technology and the constant attempt of various materials, independent research and development, testing,production specifications, the shielding effect of the shielding box / room.
we provide a steady testing environment with noise floor low as 30dBA for performance testing of acoustic products, such as speaker, receiver and mic. Sound isolation can reach more than 40dB(300Hz~20kHz), Also, we can customize sound-isolated box with special size and fixture, and provide integrated testing system solutions.
Reference documents for the calibration：
GB 6882-2008 Acoustics-Determination o sound power levels of noise sources-precision methods for anechoic and semi-anechoic rooms