Entries found for search: hum
hum : Audio noise that has a steady low-frequency pitch, typically caused by the effects of induction of nearby AC lines or leakage of AC line frequency into an amplifierís signal circuits, usually at 60Hz or 120Hz.
humanize : To introduce slight, random variations to the timing, velocity, duration and possibly other parameters of a track to make quantized tracks sound more natural. See percentage quantization.
hum switch : A switch found on some audio equipment, such as amplifiers for musical instruments, which reverses the neutral and hot leads of the power cord in order to reduce hum. The ground lead is unaffected.
thumper : A low-frequency sine wave at around 30Hz, triggered by a noise gate keyed to a click track. A thumper is used to give filmed dancers the beat of a song while recording sync sound; the thumper is subsequently filtered out.