Hearing Aids chungchang inhriattirna .

Sound hi thil pakhat vibration atanga lo chhuak a ni. Aw siamtu thil chu sound source an ti a. Aw chu boruak kal tlanga pressure wave kal zelna mai a ni. Pressure wave te hian beng chhung ruh te te te te te te chu a vibrate a (ossicles), heng vibrations te hi electronic brain wave te te ah an chantir a, chu chu aw anga kan hriat thin a ni. A chhunga beng chuan microphone ang chiah principle hmangin sound wave emaw speaker emaw hmangin sound a siam a, chu chu mechanical parts kal leh air pressure wave inzawmna a ni. A nihna takah chuan, sound wave te chu pitch a hniam a, wavelength a sei a, a lian tawk a nih chuan kan taksa vibrating air pressure wave te chu kan "feel" thei tak tak a ni.