Mackie 1642-VLZ Pro Owner's Manual Glossary - Page 14

kHz whose -3 dB points are 7.5 kHz and 12.5 kHz has a Q of 2. quantization The digital representation of an analog signal involves sampling the amplitude of the signal at a fast rate. Quantization is the measurement of the amplitude at the time of each sample, expressed is a digital word. Where an analog signal will be continuous as if it were going up a smooth path, quantization will have discrete steps (similar to stair steps). R RAM Random Access Memory is a type of computer memory that can be read from and written to. RCA phono jack Long for RCA jack or phono jack. An RCA phono jack is an inexpensive connector (female) introduced by RCA and originally used to connect phonographs to radio receivers. The phono jack was (and still is) widely used on consumer stereo equipment and video equipment but was quietly fading into obscurity in the professional and semi-professional sound world. Then phono jacks began cropping up in early project-studio multitrack recorders, which (unfortunately) gave them a new lease on life. Since so many stereo recorders are fitted with them, we decided we'd have to put a couple on our mixers for your convenience. But make no mistake: the only thing that the phono jack (or plug) has going for it is low cost. RCA phono plug The male counterpart to an RCA phono jack. regeneration can do it right on the front panel of many effects units, or you can route the delay return back into itself on your mixer. Can be a great deal of fun at parties. Regeneration is also a fancy name for feedback. Feedback makes oscillators work and reduces distortion in amplifiers. Feedback in sound reinforcement systems, a form of oscillation itself, makes you popular with dogs and unpopular with musicians and audience alike. return A return is a mixer line input dedicated to the task of returning processed or added sound from reverb, echo and other effects devices. Depending on the internal routing of your mixer and your own inclination, you could use returns as additional line inputs, or you could route your reverb outputs to ordinary line inputs rather than the returns. reverberation, reverb The sound remaining in a room after the source of sound is stopped. It's what you hear in a large tiled room immediately after you've clapped your hands. Reverberation and echo are terms that are often used interchangeably, but in audio parlance a distinction is usually made: reverberation is considered to be a diffuse, continuously smooth decay of sound, whereas echo is one or more distinct, recognizable repetitions of a word, note, phrase or sound which decreases in amplitude with every repeat. Reverberation and echo can be added in sound mixing by sending the original sound to an electronic (or electronic/acoustic) system that mimics natural reverberation, or worse. The added reverb is returned to the blend through additional mixer inputs. Highly reverberant rooms are called live; rooms with very little reverberation are called dead. A sound source without added reverb is dry; one with reverb or echo added is wet. Also called recirculation. A delay effect created by feeding the output of a delay back into itself to cause a delay of the delay of the delay. You 14