acoustoelectric
adjective
acous·to·elec·tric ə-¦kü-stō-i-¦lek-trik 
of electricity
: produced by the pressure of acoustic waves
an acoustoelectric effect
Note: Acoustic waves traveling along a conductive material can sometimes carry stray electrons with them, causing an electric current to flow.
Word History
Etymology
acousto- + electric entry 1
First Known Use
1928, in the meaning defined above