D16 Group Redoptor User manual

User Manual
Vintage Tube Distortion

1
Overview
Overview
Redoptor is a distortion effect with tube emulation.
We can distinguish two sections there:
 • Congurationandpresetmanagement
 • Signalprocessingcontrolsectionconsistsoftheallremainingcontrols.
1
Redoptor graphical interface
Conguration and preset selection section

2
Signal ow •Basic modules
2
Signal ow
This chapter describes the signal path through Redoptor. It explains the basic components of the unit and its control
parameters.
Basic modules
Internally Redoptor consists of a few basic components. These correspond to the sections on the graphical user
interface:
Preamp
Thisampliestheincomingsignal.Whenitgoesabovethethresholdvalue,the(tube)clippingstartstowork.Shaping
of the input signal can be performed using the Hi Cut and Lo Cut controls.
Preamp section

3
Preamp is controlled by four parameters:
 • Preamp gain–Valueofsignal’samplicationindecibels–inrange: [0 dB … 100 dB].
 • Lo cut–It’sahi-passlter’sfrequency–inrange:[0 Hz … 300 Hz].
 • Hi cut–It’salow-passlter’sfrequency–inrange:[1.5 kHz … 8 kHz].
 • On / Off–Turningoffalow-passltercompletely(Hi cut).
Lo cut and Hi cut control the bandwidth of the input signal which passes through the preamp.
Signal ow •Basic modules
2
Low and Hi cut combination’s frequency response

4
Tube distortion
This section emulates the tube distortion.
There are three controls in this section:
 • Tube bias–Thiscontrolstheamplitudeoftheoddharmonicsappearingindistortedsignal.Thegreatervalue
ofthisknob,themoreharmonicsinthesignal.
 • Tone–ThisisacrossfadebetweentheoutputfromthexedHi-passlterandthedrysignalafterthetube
distortion.
 • Brightness – Number of harmonics that emerge in the tube. This could also be described as the control which
givesasmoothtransitionbetweentubedistortionanddiodeclippingdistortion.
Tube distortion section
Diagram representing Tone parameter
Signal ow •Basic modules
2

5
Parametric equalizer
Parametricequalizersectionwithfourfrequencycontrols.
 • Bass – For boosting or cutting range [40 Hz … 300 Hz].
 • Middle – For boosting or cutting range [300 Hz … 2 kHz].
 • Treble – For boosting or cutting range [2 kHz … 5 kHz].
 • Presence – For boosting or cutting range [5 kHz … 12 kHz].
Each band is controlled by following parameters:
 • Frequency–Centrefrequencyofapeak.
 • Gain–Gainvalueforaband[−24 dB … 24 dB].
 • Band width – Width of the band [4 octaves … 0.5 octave].
Equalizer section
Signal ow •Basic modules
2

6
Master section
Controlsoutputsignallevelandthesignalwet/drymixbalance.TheFxknobcontrolsthewet/drysignalmix
and Output volumeknobcontrolsthenalamplication.
Path of the signal’s ow
Thepicturebelowshowsthesignalowthroughtheplug-in:
Signal ow •Basic modules •Path of the signal’s ow
2
Master section
Signal ow

7
Preset Management
Browsing presets
Presetsintheplug-inarehierarchicallyorganizedingroupsand,contrarytothelinearstructure,thissetting
isnotcompatiblewiththenativemethodsusedwithinthehostapplication.Theusercanseethepresetsassigned
to particular groups in the Preset Manager.Groupscanbealsodenedbytheuser.
Controlsavailableinthepresetselectionsection:
 • Preset name–Displaysthenameoftheselectedpreset.Allowseditingofthepresetnamebeforesaving
thepreset.Clickingonthecontrolcausesashiftintoeditmode.Afterapplyingchangesthroughthekeyboard,
conrmthenewnamewiththeEnterbutton.
 • Prev / Next–Buttonsusedtonavigatethroughthepresetbank.Nextbuttonmovesthebrowsertothenext
preset.Ifthecurrentpresetisthelastpresetinagroup,pressingNextmovesthebrowsertotherstpreset
inthesubsequentgroup.Prevbuttonmovesthebrowsertothepreviouspreset.Ifthecurrentpresetistherst
presetinagroup,pressingPrevmovesthebrowsertothelastpresetintheprecedinggroup.
 • Prev + CTRL – Prev button pressed while holding CTRL copies the edited preset to the buffer.
 • Next + CTRL – Next button pressed while holding CTRLpastesthebuffertothecurrentpresetwithpostx
“_copy” added to its name.
 • Browse – Opens a Preset Browser menu in the bottom part of the GUI.
Preset Management •Browsing presets
3
Conguration and preset selection section
Note: On MacOS
use Apple CMD
key instead
of CTRL key.

8
Changesinthepresetbankarenotpermanent.Afterremovingandreloadingtheplug-in,thedefaultpresetbankwill
beloaded.However,savingtheprojectwithinthehostapplicationwillalsosavethestatusoftheplug-inincluding
changesinthepresetbank.Afterreloadingtheproject,allchangesinthecurrentparametersettingsandinthepreset
bankwillberestored.
Preset Browser
Asitwasmentioned,thepresetbankintheplug-inhasahierarchicalstructurei.e.presetsareorganizedingroups.
PresetscanbeselectedbyNext/Prevbuttons,whichnavigatethroughthestructureinalinearwayorbyusing
the Preset Browser. The Preset Browserisatoolwhichallowstoeasilymanagethepresetstructure.Toopenit,click
Browse in the preset selection section:
Preset Management •Browsing presets •Preset Browser
3
Conguration and preset selection section

9
The Preset Browser
will unfold under the
GUI:
Preset Manager
Theleftsideshowsthelistofgroupsinthepresetbank: The right side shows the list of presets in the selected group:
List of groups in the preset bank List of presets in the selected group
Preset Management •Preset Browser
3