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 THE COMPONENTS

        

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17

 

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THE COMPONENTS

the Connections Panel

The VERTICE Analog Filterbank is externally composed of:

• 

the 

Inputs and Outputs section, which hosts most of the playing connections the VERTICE can allow. They 

are here to easily "plug-and-play" your ideas

• 

the 

Main section, which is the place where you can really play with it

• 

the 

Rear panel where you can find serial number, rear ouput ports, power socket and fuse replacements.

Follow the detailed explanations of these sections.

The INPUTS and OUTPUTS on the front panel
It's the right side of the machine and provides several ports for Audio and CV managing, properly labeled.

In the nine Input ports you can respect their designated functional domain or try some more creative patches. 

An oscillating CV is certainly a CV but it's also an 

oscillation... you can try to plug it into the “wrong 

hole”, generally it is not dangerous for the VERTICE’s 

health. However try to use only “musically known” 

signals, avoiding e.g. direct 380VAC or radioactive 

gamma ray. Higgs boson also should be avoided.

The two OUTPUT ports also can be “mistaken”. 

The natural destination is the 

MONO

 or the 

summing 

PARALLEL

 out for the first one, and the 

STEREOPHONIC

 or 

SERIAL

 for the second one. Later 

in this manual all the nuances of the two/three/

four modalities are fully investigated. For now treat 

them as your intuition suggests, like i.e. "Parallel = 

sum of signals, Serial = sequence of signals".

Reference Labelling

In addition to this quick description here you can 

find some reference terminology valid of course 

throughout the labels on the whole Filterbank and 

frequently used in this manual:

• 

A / B / C

: is related to the three filterboards, 

heart of VERTICE, in left to right sequence

• 

Cf

 is the acronym of Cutoff Frequency

• 

MCƒ

: this label indicates the 

MASTER CUTOFF

 

frequency control hosted in the middle of the 

front panel

• 

Emphasis

 mean Resonance, a controllable feedback that preeminently define the filter character.

• 

CV

 is the acronym of Control Voltage. In the synthesisers world this way of control something else came 

before the MIDI age, when everything was to be controlled by simple variations of voltage at a given point 

of the circuit. This method, exept for some accurate situations like VCOs exponential converters, was not 

so much precise, using a large scale of values (0/+5V or even +/-10V). This lack of precision was not a big 

problem since the analog subtractive synthesis was (and still be) very coarse and inaccurate, THEN creative.

Errors make us artists.

Inappropriate precision make us instruments. My CD player play the same virtuoso solos of Vivaldi exactly 

the same at every listen. No-one real human can do that. I call it lucky, and it isn't a problem at all. :)

Содержание Vertice

Страница 1: ...USER S MANUAL...

Страница 2: ......

Страница 3: ...al Rev 1 4 Copyright 2014 2018 Euterpe Synthesizer Laboratories All rights reserved Published by INDUSTRIE CREATIVE Turin Italy Written by Stefano Bersanetti Proofreading by Tom Charles Edwards ISBN 9...

Страница 4: ...ctions 11 panel graphic overview 13 signal flow 15 THE COMPONENTS 17 the Connections Panel 17 the Filters section 21 the Masters section 37 the Envelope Generator section 41 the power module 48 USING...

Страница 5: ...Dedicato a Walt Bruno e Lorenzina con immenso amore Stefano...

Страница 6: ...o synth available today and at the same time another mono signal splitting it and take care of them all in a totally independent or completely related way Or three mono signals together summed distort...

Страница 7: ...is at the beginning of the safety zone the orange zone on the panel and A input level is to max OR when Staccato Continuo is to max and A input level is to flat position Obvioulsly the external signal...

Страница 8: ...e momentary switch on the panel act like a gate signal exactly like using the EG Gate input with a common Gate emitting keyboard Rear outputs are great to feedback them into front inputs For example y...

Страница 9: ...g up quick overview Your first patch signal into A raise the A audio level let the signal flow into the B and the C filter in serial mode Use the Serial out or the Parallel in this case is the same to...

Страница 10: ...VERTICE Filterbank section provides in depth description of some inside dynamics and various usage tips and tricks Please read this chapter to fully understand your VERTICE Analog Filterbank Some fun...

Страница 11: ...the dedicated LED blink up saying Yeah bitch When you switch it ON you can eventually turn down STACCATO CONTINUO knob fully counterclockwise in STACCATO position This is the most silent way to switch...

Страница 12: ...reasonable to think that a small change in tone with the same settings can be detected and if you like the analog philosophy this is the genuine product proof like as in orange juice that if it depos...

Страница 13: ...ter A with distortion circuitry Filter B Filter C MASTER LEVEL with Staccato Continuo function Two Resonancepaths for each filter MASTER CUTOFF with dedicated CV level AUDIO and CV input LEVEL A to A...

Страница 14: ...IO IN Allows you to feed audio into VERTICE A B and C filterboards INPUTS CV IN You can control the corresponding Cf with an external CV signal Master Cutoff INPUTS AM input let you control the dynami...

Страница 15: ...mpacting and tough sounding possibilities PARALLEL Using the module it is possible to sum the A B or C outputs It is a noble possibility if you notice there are three independent audio inputs it means...

Страница 16: ...Square input signal however can obviously produce smooth outputs CV thanks to the ADSR controls Contrabass tone routing tips the first simple patch to do This is a very basic configuration hosted in t...

Страница 17: ...nuances of the two three four modalities are fully investigated For now treat them as your intuition suggests like i e Parallel sum of signals Serial sequence of signals Reference Labelling In additi...

Страница 18: ...roximately the point of standard Moog 1V oct but your unit can be slightly setted differently because of the component tolerances in this passive old style regulation system Adjusting this setting is...

Страница 19: ...these ports into your patch bay to obtain more comfort during patching E g you may want to create something like this Audio into B B into C C to output Then you can take the B signal and route it int...

Страница 20: ...CF or the VCA via front panel switch So you can have your loop or your triggered ADSR response driving both MCf aka VCF and e g A filterboard A Cf CV input or both MCf and VCA via AM input or VCA AM i...

Страница 21: ...ectly into the diode network You can see the original 1974 Steiner VCF circuit in the inside back cover of this manual Values are effective with these component values you can build a working 1974 Sal...

Страница 22: ...r its oscillating nature an alternatedsignal AC frequencyofanACsignal notzeroHz andthisisenoughforthecapacitor thesignalpass through But likesomuchinphysics itisallatransientmatter Thismeansthatcapaci...

Страница 23: ...allychangeasaconstructioncharacteristic This is not the right place to dwell around this argument just be content of the sequent little reasoning Using Pythagoras and vectors we can transform the prev...

Страница 24: ...filter slopes making it more or less aggressive on the harmonic contents Generally speaking in Vertice MORE EMPHASIS MORE AGGRESSIVE SLOPES Alternative Emphasis way in order to tame the too much dyna...

Страница 25: ...very inaccurate both in level and intonation and you can often notice a sensitive pitch unstability during the flowing of the minutes Mixing the three autooscillating VCF togheter can produce very int...

Страница 26: ...ur filterbank is not a precision tool a bistoury It s more like a Viking battle axe We designed the alternative resonance way transistor specifically to cover the lack of stability that high resonance...

Страница 27: ...nuances Low Emphasis levels are useful to create slow bassline and to correct too dark track without impacting too much on their harmonic structure Remember that low slope values are equal to less ph...

Страница 28: ...and too much Emphasis As a general info valid for both Diode or Transistor position you can split the Emphasis pot race into two half to the left the safe zone to the right the ok let them understand...

Страница 29: ...ll gradually notice that the behavior become very unstable with changes in both fast and slow rates with cyclic sometimes random ballet Arrows in the graph are indicating this behavior instability how...

Страница 30: ...mances Instability of maximum level Emphasis Because of Steiner s classic resonance way diode strongly analogue nature these high Emphasis levels makes the Cutoff so unstable to generate a big slip fr...

Страница 31: ...lters we think that a response too sharp often results too unnatural and unmusical compared to a softer although effective slope 18dB oct is not 24 but is also not zero And you can achieve a more aggr...

Страница 32: ...o emphasize the high content of snares hi hat atmo pads and whatever need a full chlorine clarification In simple re amp modality HP can be useful if presence is the target sacrificing bass response H...

Страница 33: ...mode circa 8 5Vrms In all the circumstances except for the well know very low Davoli s output level the behavior of the VERTICE s input stage is optimal and the range until full distortion is larger...

Страница 34: ...ns that it discharge part of the injected energy to the main ground plane of Vertice This is a non professional non clean approach and I m here to underline it Why Well First because there is nothing...

Страница 35: ...related two output ports The stereophonic signal is obviously processed by the two A and B filters linked via MASTER Cutoff control In this configuration PARALLEL becomes MONO and presumably the LEFT...

Страница 36: ...y a simple active buffered circuit that make a true electric distortion caused by a current overload of two transistors We make them suffer Obviously the A preamplifier represents the input level for...

Страница 37: ...gular 0 10V And just like the slaves it s attenuated by the related CV level potentiometer graphically connected on the panel But remember that the Master just controls the slaves so as a moment ago m...

Страница 38: ...s noise floor is 77dB 2 in a 24bit digital scale It is not exceptional at all but it is quiet enough to meet the most case of applications Obviously turning down the input material or cut it totally o...

Страница 39: ...t the same but with a little of I don t know USAGE NOTEs for the Vertice AM INPUT a delicate point in the circuitry AM input accepts standard 0 5V 0 5V 5V and standard audio voltage levels With this v...

Страница 40: ...nt less final amplification coming from your VERTICE possibly in the case of live situations with some guitar pedals such digital delay or reverb and without a mixer between the audio chain In order t...

Страница 41: ...from very slow to audio range modulations max circa 170Hz the VCF VCA selector to route the CV between the two main modules the anti vandal high end super professional Trigger button to have the pleas...

Страница 42: ...meters slowly moving esoteric pads Release is a time control and thus is affected by the Percussive Smooth Slow switch position EG Level This pot can attenuate to zero the CV produced by the EG module...

Страница 43: ...an activate the Loop function We say can because the effective loopingsituationishighlydependentontheADSRandRatesettings Allthefourparameters contribute to modify the looping rate and status so there...

Страница 44: ...ly turn it right to smooth a bit the initial shape of the loop But Attack is another tricky part of this circuit and it often turns off your loop when in flat or more clockwise position due to the min...

Страница 45: ...etting we suggest to start with turned into the looping modality It simply doesn t work There is not enough Release level to maintain looping and the max Sustain setting produces a straight note when...

Страница 46: ...mely dynamic and sensitive to CV So for example avoid to doubling the EG signal to the VCA module via rear port panel switch It probably will be musically pointless and eventually dangerous for circui...

Страница 47: ...play anymore and this is why you shout down the signal source VERTICE is not tired enough VERTICE want to play drops right now and you can t do anything about that bitch Well togivingtoourbelovedVERT...

Страница 48: ...0mA 15V Voltage set accuracy 2 max Minimum load 10 of rated max current Ripple and noise 20MHz BW 1 of Vout mVpp Overload protection by current limit 105 min of Inom fold back automatic recovery Overv...

Страница 49: ...w crazy We want it can be astonishing for a long time since you bought it not just a one night love There is plenty of more perfect more usable more inexpressive and money saving analog and digital fi...

Страница 50: ...ntotheSumming Circuitry instead labeled by the Greek and mathematical symbol In this case this routing method can exclude the B filter and obviously also the C from this audio line But remember that a...

Страница 51: ...eristic is required In other words VERTICE can be a reliable source of well mixed very boosted pure electric audio material So you can use it not only for filtering general mix needs are satisfied too...

Страница 52: ...om the Parallel Output 3 obviously there are more complex combinations sons of the two previous especially using the rear ports and the CV inputs together Experiment with some different audio input ma...

Страница 53: ...n see in the ROUTING chapter at page 15 the C filter virtually can t be available for any use But in the real life C is still functional and available for crazy Emphasis auto oscillations and to recei...

Страница 54: ...is preeminently generated around the Cf frequency position and changing that position often generate a very musical half tone difference from the foundamental note besides changing the waveform So you...

Страница 55: ...at tempo and you re just become a real pro FEEL THE DARKNESS Rear A into Front B Rear Ser into Front A A to Par B to Stereo Just raise up the A Emphasis level to obtain something like be inside Alien...

Страница 56: ...ircuits It is not so dangerous but maybe also not so useful musically speaking We leave it there only as a side effect of a strongly wanted huge dynamic range with all the expressive and tonal possibi...

Страница 57: ...TICE as a compressor you must 1 Procure yourself a stereo BD signal or obviously any other signal that may trigger the Eg 2 Use one cable to feed audio signal into audio path of VERTICE It can be A B...

Страница 58: ...her force it to be so level grow It s a bit tricky but this is the only way you can use to obtain compression from VERTICE It can be a very silent compression and still remains strongly effective on a...

Страница 59: ...n a pumping version of the Unnatural Position described earlier I mnotheretoexplaintoyoutheCompressiontheory givingitasacommonknowledge butabriefconsideration about Attack and Release matter can be do...

Страница 60: ...rotected by level reduction simply bypassing Vertice Or simply move your triple saw square with rhythmical modulation and remain synchronized with the other machines of your set up And with all these...

Страница 61: ...ponent failure we need to take direct care of the unit So we will give you all the necessary informations to return it to our laboratory Programmed Obsolescence Ifyounoticeaproblemandhavetheskillsandm...

Страница 62: ...the job done than expiring instantly your warranty for nothing If you communicate your idea to us we take care to note down it and your warranty will remain active1 If not and something goes wrong we...

Страница 63: ...As always taking a look inside your new machine can be a rich source of knowledge about it and about the rest of the world Please note the dimensions of our pcbs of our power supply and related anti E...

Страница 64: ...er electronic device the VERTICE circuitry is very sensitive to water rain or other kind of liquid especially if they containdilutedsugarsorsalts IfsomesortofliquidisintouchwiththecircuitsTURNOFFTHEUN...

Страница 65: ...nces with restrictions of use referred to in Article 4 paragraph 1 and values of maximum tolerated concentrations by weight in homogeneous materials VERTICE is CE compliant following the sequent EEC S...

Страница 66: ...NOTES PATCH ID DATE AUDIO SOURCE CV SOURCE A FILTER B FILTER C FILTER MASTER CUTOFF EG GATE AM INPUT INPUT SETTINGS...

Страница 67: ...Giovinetto Emanuele Prochietto Marco Trivellato Sergio Taglioni and all APM team Luigi Cominetti Paolo Groppioni GRP Synthesizers Danilo Bianchi Samuele Castucci Mauro Manzio Gerbaudo Elia Pellegrino...

Страница 68: ...Ratio et Cogitatio Unicam Fidem Sunt...

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