Q

Q
(Factor) of filters, graphic equalisers, radio michrophone receivers. a measure of the resonant properties of a filter. For a high value of Q, the bandwidth of the filter is narrower, and the filter will therefore be more resonant.

QRD
Quadratic Residue Diffusor.

QUADROPHONIC SYSTEMS
1970s four track release format. An unsucessful attempt to replace stereo.

QUANTISE
Term used in music sequencing, notation and more recently audio editing packages, refers to the various algorithms which can be applied to pull musical data into strict time..

QUARTERFRAME MTC MESSAGES

QUARTER INCH JACK SOCKETS
Type of audio connector.

QUAVER
A fixed note length equal to one half of a beat in a 4/4 time signature. In US notation it is the equivalent of an 1/8 note.
See also time signature.