acoustic chamber widely used in loudspeaker monomer, microphone monomer, motor monomer, mobile phone, tablet, laptop, smart speaker headset, AR/VR glasses, medical equipment, automotive accessories and other audio/noise reduction function test. The sound suppression box is made of rice gold, multi-layer sound insulation material combination has good sealing and solid structure, and is equipped with high-performance sound absorption materials to provide a good sound insulation and sound absorption detection environment. It can be combined with test sound card, audio analyzer, artificial mouth and artificial ear combined with test software to form an overall audio test system.

校準(zhǔn)的技術(shù)依據(jù)及 CNAS 認(rèn)可范圍 Reference documents and CNAS accredited scopes

JJF 1147 2006 消聲室和半 消聲室聲學(xué)特性校準(zhǔn)規(guī)范： Noise:( 2.5 120)dB;Sound Pressure Level:( 2.5~120)dB[31.5Hz 20kHz;d:(0.5 5)m] 。