'Japanese Otacoustic Fan' (1882). Developed at a Tokyo institute for the deaf, these fans of lacquered sheets used bone conduction to amplify sound.
#Hearing #HearingAid #HearingLoss #JapaneseDesign #BoneConduction #Otacoustic #Fan #Amplification #Skull #SoundBeyondMusic #CultureOfSound #MuseumOfPortableSound
#hearing #HearingAid #hearingloss #japanesedesign #boneconduction #otacoustic #fan #amplification #skull #soundbeyondmusic #cultureofsound #museumofportablesound