In addition to the wall STC test performed in the testing laboratory, By using a standard ASTM E90 or ISO 140 eye test or building a mock up test, we can also provide onsite acoustics testing services for rooms that have already been built. This is known as the Field STC test in accordance with ASTM E336 or ISO 140-4, where the field STC test value is usually low. Than the results of the STC tested from the laboratory This is due to the fact that laboratory testing has completely eliminated the factor causing flanking transmission, known as flanking noise. This is different from the actual installation location where there is still a flanking transmission factor.
Test in the laboratory and the room where everything was installed is complete.
Geonoise (Thailand) Co., Ltd. offers all types of sound testing services by modern and international standards And give advice that is technically correct by the audio engineer directly