User Manual

7
FILTER :
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Shape – steps through the three types of filter: low-pass (LP), band-pass (BP) or
high-pass (HP).
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Slope – sets the slope of filter to either 12dB or 24dB per octave.
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Frequency – large rotary knob controlling the filter’s cut-off frequency (LP or HP), or
its centre frequency (BP).
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Resonance – adds resonance (an increased response at the filter frequency) to the
filter characteristic.
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Overdrive – adds a degree of pre-filter distortion to the mixer output.
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Source – selects whether the filter is to be varied by Mod Envelope 1 (Mod Env 1) or
the Amp Envelope (Amp Env).
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Env depth – controls the degree by which the filter frequency is modified by the
envelope selected by Source
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LFO 1 depth – controls the degree by which the filter frequency is modified by LFO 1.
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Osc 3 Filter Mod – allows the filter frequency to be modulated directly by Oscillator 3.
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Key Tracking – controls the degree by which the keyboard position of the note being
played varies the filter frequency between 0 and 100%
EFFECTS:
Peak’s Effects section comprises three different DSP-based processors producing time-
domain effects, plus an analogue distortion generator.
The Delay, Reverb and Chorus effects have further parameters available for adjustment via
the menu system; these are described in detail later in the User Guide.
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DISTORTION: Level – controls the amount of analogue distortion applied to the sum
of all eight voices.
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DE LAY: Time – sets the timing of the delayed signal (echo) added to the original.
Maximum delay is approx. 1.4 seconds.
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DE LAY: Sync – selecting Sync allows the delay time to be synchronised to the internal
clock or an incoming MIDI clock.
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DELAY: Feedback – allows the delayed signal to be fed back to the input of the delay
processor, creating multiple echoes.
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DE LAY: Level – controls the volume of the delayed signal.
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REVERB: Time – adjusts reverberation decay time. (The maximum time is longer than
you’ll ever be likely to need!)
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REVERB: Type – emulates spaces of three different sizes: 3 is the largest.
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REVERB: Level – controls the “amount” of reverberation.
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CHORUS: Rate – adjusts the rate of chorus modulation.
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CHORUS: Type – lets you select one of three different chorus algorithms.
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CHORUS: Level – controls the degree of chorus effect.
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EFFECTS: Bypass – the three time-domain effects may be switched in or out with
this button.
MENU:
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20 character x 4 row OLED display. Displays one of the nine menus selected by the
buttons
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. Pages within each menu may be selected with the two Page/Select buttons
below the display. Adjusting any of Peak’s rotary controls (except MASTER and PATCH )
invokes an alternative display showing the value of the parameter being adjusted until
the control is released. The three buttons to the left of the display assign the parameter
controls
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to a particular row of the page being displayed.
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Nine buttons selecting the menu to be displayed: Patch, Osc, Env, LFO, Arp/Clock,
Mod, Voice, FX and Settings.
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Parameter adjustment may either be made rapidly by the rotary control or incremented/
decremented one parameter value at a time with the Value + / Value - buttons.
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Active Voice – eight LEDs, indicating which of the eight voices are currently active.
ANIMATE :
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ANIMATE 1 and 2 – add an “instant” effect to the sound currently being generated.
These buttons are great in live performance: the nature of the extra effect will be
determined by the Patch in use.
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Hold – pressing Hold will “lock” the Animate function in an “On” state. You can either
press Hold before pressing ANIMATE, or vice-versa. Pressing ANIMATE a second time
releases both the Animate and Hold functions.
MASTER:
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Volume – master volume control for the synth’s audio output; this also controls the
headphones output level.