asymmetry of the voltage or current waveform caused by presence of an important dc component.

The presence of stray dc voltage or current in an ac power system is called dc offset. This can occur as a result of a geomagnetic disturbance or the effects of half-wave rectification. Incandescent light bulb life extenders, for example, may consist of diodes that actually reduce the rms voltage supplied to the light bulb by half-wave rectification. Direct current in alternating current networks can have a detrimental effect by biasing transformer cores so they saturate in normal operation. This causes additional heating and loss of transformer life.

Refers to the degree to which a DC voltage is skewed away from a zero or baseline value.

host program pitch tracker timbre

An audio editing process to remove inaudible low-frequency distortion often caused by electrical interference.