Jack which allows for the LFO to be patched into whatever module it is controlling. Note that the pulse wave is, in this case, a square wave and that both the square and sawtooth wave forms are positive going.įrequency Control.
This slider switch controls which of the four waveforms is produced by the LFO. Shown on the following drawing are the physical features of the Roland LFO: It might also be used to gate an ADSR but this is not as common, especially with currently available computer control possibilities. Most typical is the use of an LFO to control a VCO, producing vibrato or trills, and, to a lessor degree, to control a VCF, where it might produce a cyclic filter sweep or effect. As such it is not intended to produce an audio signal, but rather a cyclic voltage output which is to be used as a 'controller' of other modules on the synthesizer. The LFO is a module which is basically a VCO designed so that it only produces very low frequencies (up to c. LFO Roland System 700 Analog Synthesizer Modules
