User Guide
76
English
External Input
The Mixer section has an external audio input. You can connect another audio source here - for
example, the output from another synth module - and use Circuit Mono Station’s envelope, lter
and mod sections to treat it. You can even connect the output of Circuit Mono Station to itself:
this “recursive” connection can produce some extreme and startling effects!
The external input is a standard ¼” jack socket
2
on the rear panel.
The Audio In control adjusts the level of the external input in the mix. You can also adjust the
gain (or sensitivity) of the input stage by holding down Shift
15
and adjusting the same control:
this will allow Circuit Mono Station to accept a wide range of signal levels. Note that although all
the Mixer level controls are automated (see “Automation of Knobs and Sliders” on page 58),
the shifted Gain function of Audio In is not automated.
You can use the External Input to congure Circuit Mono Station as a lter/
distortion effects unit. Program an Osc 1 Pattern with a single note on Step 1
which sounds for the whole bar (16 Pattern steps) – this will keep the
envelope open. Turn all Oscillator level controls down in the mixer. The signal applied at
the External Input can now be treated by the Filter and Distortion sections.
The Filter section
34 32
31
30
35
33
The sum created in the mixer from the various signal sources is fed to the Filter Section. Circuit
Mono Station’s lter section is both simple and traditional, and can be congured with only a
small number of single-function controls.
By default, the Filter Section affects all the signals fed to the Mixer Section. An unusual feature
in Circuit Mono Station is that you can choose not to apply the lter to Oscillator 2 and/or the
Noise signal with the Bypass button
35
. Successive presses of Bypass switch the lter out of
circuit for the Noise source, Oscillator 2’s waveform, or both of these, in turn. The sources being
bypassed are indicated by the two LEDs above the button. A further press cancels the bypass
function and returns the lter to affecting all sources.