Real time, non-invasive measurements of vocal tract resonances: application to speech training

nal field. The heasurenents w€re made using a broad ban4 frequency independenr a-""i.-."u-r*, " miqophore znd a-spe(rrum anrlyser which dirphys the acoustic inpedance spearum. The drplay provrded real-rme, visual feedback trhelrby sublfcB leaded lo imilare rargcl vowel.ounO, *,rtou, t"u,tng,1,.n, Ine{ncncnkJ 5ubJ(rs who used ftN teedb&k produced sounds rhat wete approximarely as u.e1l recog;sed asInos produ.ed by rhe $me subjecrs imirdrrng DrSer vowel soh{s an * lnreniD8 to ften. The recognirion rare,mpro! * $Ih r fe rb iecr \ ' expenence in usng rhe rmpedan(e i edbact rechrrque r t., ".,-,n.- , " ,. _.q* could thus have posible aprtications in speechtEinins ud language teachins. I