First use of the term Elektro-Akustische ?

Does anyone know an earlier use of the term electroacoustic? This is 1902/03.

[Electroacoustic Investigations], Robert Hartmann-Kempf

https://www.abebooks.com/servlet/BookDetailsPL?bi=21312001136&searchurl=tn%3Dstahlfedern%26sortby%3D17

Thanks

Kevin