CMRR — Common Mode Rejection Ratio
CMRR quantifies how well a balanced audio input rejects noise and interference that appears equally on both conductors — the key specification that makes balanced audio essential for long cable runs in AV systems.
glossaryaudiofundamentalscmrrbalanced-audionoise+1
Impedance — Audio and Video Impedance Matching
Impedance determines how audio and video signals are loaded and transferred between devices — mismatched impedance causes signal loss, frequency response errors, and reflections in video systems.
glossaryaudiovideofundamentalsimpedancebalanced-audio+1