4ms Company Mini PEG Manual do utilizador - Página 6
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Imprimir páginaShift
+
By holding down the Cycle button while turning the Offset knob, the Shift amount can
be controlled. This is similar to Offset, but is applied after the envelope is offset and
Cycle
Offset
scaled. The DC level of the Shift amount is the center-line across which the Scale knob
attenuates and inverts the envelope. Shift essentially shifts the scaled/offset envelope
up and down, causing clipping at the -9.4V and +9.4V rails.
By default, Shift is 0V, which is the most intuitive setting. Any envelope voltages
(amplitude and offset) that the Mini PEG is capable of generating can be produced
without adjusting Shift. However, with a proper understanding of DC offset, amplitude,
inversion, and clipping, changing Shift can help in special-case situations by allowing
the Scale knob to invert the envelope across a voltage other than 0V.
ENV OUT
ENV OUT is the main envelope output. Its range is from -9.4V to +9.4V. The red and
blue lights above the ENV OUT jack are helpful in determining if the envelope is
ENV OUT
positive (blue), negative (red), or both.
5V ENV
The 5V ENV jack is an envelope output that always produces a 0V to +5V envelope
regardless the Offset, Scale, and Shift settings.
5V ENV
EOF
The End-of-Fall (EOF) jack outputs a gate that goes high when the fall segment ends. If
the envelope is stopped, the jack will remain high. It will only go low when a rise
segment ends and a sustain or fall segment begins. Another name for this jack might be
EOF
"Envelope is Rising or Stopped".
In System Mode, this jack can be configured as an End-of-Rise jack, a Half-Rise jack,
or a Tap Clock output jack. End-of-Rise (EOR) goes high when a fall segment starts
(and stays high if it stops), and goes low when a rise segment starts (and stays low if it
sustains). This jack could be called "Envelope is Falling or Stopped".
Half-Rise goes high when the rise portion is half-way finished, stays high through any
sustain period, and goes low when the fall portion is half-way finished.
Tap Clock runs freely even if the envelope is not running. It outputs the raw ping clock
(before division/multiplication) that was tapped on the Ping button, ignoring any
external clocks. See the Tap Clock Output section for details.
The EOF jack outputs a square wave by default, but in System Mode it can be changed
to output triggers instead.
Maximum and Minimum Clock Times
The Mini PEG can process incoming clocks and output envelopes up to about 4kHz, with some jitter,
glitches, and imprecision. When outputting frequencies higher than 500Hz, the output will contain
increasing amounts of noise and glitches, but still holds a solid fundamental frequency and waveshape.
Since it goes well into the audio range, the Mini PEG can be used as a rudimentary lo-fi harmonizer
(e.g. sub-octave generator). Be aware that when using the Mini PEG as an audio generator, small
amounts of jitter on the incoming clock will cause large amounts of audible distortion and glitches on
the output.
The maximum envelope time is about 29 hours (1750 minutes). The maximum ping clock time is also
about 29 hours, so if you fire a clock pulse into the Ping jack once a day, the Div/Mult setting must be
= or multiplying in order to produce an accurate output.
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