olemus
ISO/IEC 2382 jm:
algse signaali pingele lisanduv soovimatu pingeosa
võimendi kahe sisendpunkti vahel
= that unwanted part of the voltage, between the two input connection points of an amplifier, that is added to the voltage of the original signal

piltlikult
https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTue6shx4__YCW8YZznJTLcxZs_j9E39YVz2eirVEpJfpOdbV2Kk9gqRznXZxI5kGDEE88&usqp=CAU

https://techweb.rohm.com/upload/2018/03/20170926_graf_11.gif

vt ka
- normaalhäiringu summutus