Newly included in the MRB Laboratory Bundle.
The Laboratory Noise module is a high quality, general purpose noise and random modulation source with 4 outputs. The WHITE jack outputs semi-gaussian white noise. The PINK jack outputs pink noise which has a spectrum that falls at -3db/octave and is accurate to within 1/2db. Both outputs sound very smooth with no hint of crackle or popcorn which can be a problem with analog units.
The RESONANT RED jack outputs low-frequency noise which is tunable from about 200Hz down to 1Hz with the Fc knob. The Q knob, when turned up, accentuates the tuned frequency. When fully counterclockwise, the output is random up to the Fc setting. As Q is raised, the output slowly picks up a sinusoidal chaotic wiggle at the Fc setting.
The PERTURB jack outputs a signal which imitates the jitter and wiggles of human muscle. For instance, when an untrained singer tries to hold a note, there is an unsteadiness. When the RATE knob is in mid position, the output produces this kind of modulation source. Adjusting the RATE knob speeds up, or slows down the wiggle. FM'ing a VCO with just the tiniest amount of PERTURBation produces a very natural result.
Both the RED and PERTURB outputs work very well for random sequencing when used independently or summed through a quantizer.