acoustically

(linguistics) any of various acoustically different forms of the same phoneme

n (linguistics) any of various acoustically different forms of the same phoneme

the sound of the vibrating needle is amplified acoustically

n machine in which rotating records cause a stylus to vibrate and the vibrations are amplified acoustically or electronically

machine in which rotating records cause a stylus to vibrate and the vibrations are amplified acoustically or electronically