Therefore the MIRL, working with National Tsing Hua University's anechoic chamber (the walls of which absorb all sound waves, so that no echoes interfere with the sound measurements), used a timbre analyzer to test the timbre of other saxophone brands, and established a timbre database to be consulted by Houli manufacturers for comparative purposes.
為此，工研院也與清華大學「無迴響室」（能將所有的入射聲波完全吸收，而不產生反射以避免干擾）合作，藉著音頻分析儀拆解其他品牌樂器的音色結構，作為后里廠商參考比對的音色資料庫。