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ARTURIA – ARP 2600 V – USER MANUAL

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5.2.3

The low frequency oscillator

The LFO (Low Frequency Oscillator) possesses, among other things, the same
characteristics as the classic audio-frequency oscillator but does not produce
frequencies higher than 20 Hz. In other terms, you won’t hear the sound if you
connect the audio output of an LFO in an amplifier.
Not being used to produce a sound, it can be used to create a cyclic
modulation on the parameter on which it is connected.
On the ARP2600 V,the LFO module is situated on the left of the sequencer .

The LFO module of the ARP2600 V

For example:

•

If you connect an LFO to the modulation input of an amplifier, the
sound volume will increase and decrease in an alternate manner
depending on the speed (the frequency) of this LFO. This will create
a tremolo effect.

•

To produce a vibrato effect, simply connect the sinusoid output of an
LFO to the modulation input of an oscillator. The frequency of this
oscillator will thus be modulated up and then down.

•

Finally, try to connect an LFO output to the modulation input of a
lightly resonant low-pass filter and you will obtain a “wah wah” effect.

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Содержание ARP 2600V

Страница 1: ...ARTURIA ARP 2600 V USER MANUAL 1 USER MANUAL...

Страница 2: ...ign Glen Darcey Yannick Bonnefoy Morgan Perrier Sebastien Rochard Greg Vezon Sound Design Jean Baptiste Arthus Jean Michel Blanchet Manual Jason Valax Special Thanks Alejandro Cajica Denis Efendic Rua...

Страница 3: ...3 2 2 Save Preset As 18 3 2 3 Import preset 18 3 2 4 Export preset 19 3 2 5 Resize window options 19 3 2 6 Audio settings 20 3 2 7 Preset browser overview 20 3 2 8 MIDI Learn assignment 21 3 2 8 1 Ass...

Страница 4: ...4 1 2 2 Oscillator 2 44 4 1 2 3 Oscillator 3 45 4 1 3 The Filter VCF 47 4 1 3 1 The filter types 49 4 1 4 The envelopes 50 4 1 4 1 ADSR 51 4 1 4 2 AR 51 4 1 4 3 Trigger modes 51 4 1 5 Output amplifier...

Страница 5: ...ators 76 5 2 3 The low frequency oscillator 78 5 2 4 The ring modulator 79 5 2 5 Sample and hold 80 6 A FEW ELEMENTS OF SOUND DESIGN 82 6 1 Simple patch without cabling 82 6 2 Polyphonic patch with ca...

Страница 6: ...Switched on Bach according to legend In 1969 Alan R Pearlman David Friend and Lewis G Pollock created ARP Instruments originally called Tonus Inc The company based in Newton Highlands Massachusetts U...

Страница 7: ...dipped the electronic circuits for filtering in resin to avoid industrial piracy this made for major problems when trying to perform a repair In 1972 ARP launched the Odyssey which would be in direct...

Страница 8: ...ound as do all of Arturia s virtual synthesizers TAE combines three major advances in the domain of synthesis 1 2 1 Aliasing free oscillators Standard digital synthesizers produce aliasing in high fre...

Страница 9: ...inal waveform most notably for sawtooth triangular and square waveforms TAE reproduces the result of this capacitor discharge in software Below is the analysis of a waveform from one of the five origi...

Страница 10: ...filter circuit the warm nuances synonymous with analog sounds are recreated The following graph shows a single example of direct circuit modeling in action The peaks represent the generation of harmon...

Страница 11: ...om line when you bring together a bunch of music lovers who also have a deep understanding of the characteristics of electronic circuits you wind up with Arturia And Arturia now offers you our most im...

Страница 12: ...ith the product In order to proceed go to this web page and follow the instructions http www arturia com register Note If you don t have an Arturia account yet you will need to create one The process...

Страница 13: ...NUAL 13 ARP 2600 V main menu You will then see the Audio MIDI settings window This works in the same way on both Windows and Mac OS X although the names of the devices available to you will depend on...

Страница 14: ...uses to calculate sound A smaller buffer means lower latency between pressing a key and hearing the note A larger buffer means a lower CPU load as the computer has more time to think but can result in...

Страница 15: ...s no need to specify a channel You can specify more than one MIDI device at once 2 2 2 Audio and MIDI settings Mac OS X The process is very similar to initial setup for Windows and the menu is accesse...

Страница 16: ...ers using your DAW s automation system You can use more than one instance of ARP 2600 V in a DAW project In standalone mode you can only use one at once You can route ARP 2600 V s audio outputs more c...

Страница 17: ...he keys to hear a glissando The ARP 2600 V virtual keyboard 3 2 Toolbar The toolbar that runs along the top edge of the instrument both in standalone and plug in mode provides access to many useful fe...

Страница 18: ...s useful for creating variations on patches but still keeping individual copies of each one 3 2 3 Import preset This command lets you import a preset file which can be either a single preset or an en...

Страница 19: ...options The ARP 2600 V window can be resized from 60 to 200 of its original size without any visual artifacts On a smaller screen such as a laptop you might want to reduce the interface size so it do...

Страница 20: ...receives MIDI See section 2 2 of the manual for full details on this 3 2 7 Preset browser overview The Preset browser is invoked by clicking the toolbar button that has four vertical lines See sectio...

Страница 21: ...can be assigned to MIDI controls will be shown in purple and the idea is that you map physical buttons knobs faders or pedals from hardware MIDI controllers to specific destinations inside the instrum...

Страница 22: ...area you ll put that control into learning mode Move a physical knob or fader and the target goes red indicating that a link has been made between the hardware control and the software parameter There...

Страница 23: ...controller But it is possible to toggle those with a fader or other control if you like 3 2 8 3 Relative control option The final option in this window is a button labelled Is Relative It is optimized...

Страница 24: ...l Omni Mode Off CC 124 Ctrl Omni Mode On CC 125 Ctrl Poly Mode Off CC 126 Ctrl Poly Mode On CC 127 All other MIDI CC numbers may be used to control any assignable parameter in ARP 2600 V 3 2 9 MIDI co...

Страница 25: ...the left hand side of the lower toolbar you will see a readout showing the value or state of whatever control you are modifying It will also display the current value of a parameter without editing i...

Страница 26: ...in the event of stuck notes or other issues The Panic button is also MIDI assignable The CPU meter is used to monitor how much of your computer s CPU is being used by the instrument 3 2 10 4 Maximum P...

Страница 27: ...ch view click on the browser button the icon looks a bit like books on a library shelf The Preset Browser button 3 3 1 Searching presets The Search screen has a number of sections By clicking on the S...

Страница 28: ...sults columns can be sorted by clicking the same arrow button in their own section You can use multiple search fields to perform narrower searches So by entering a text search and also specifying type...

Страница 29: ...nformation for User presets may be changed here Name Type Favorite etc However if you want to alter the information for a Factory preset you must first use the Save As command to re save it as a User...

Страница 30: ...if you searched for Love in the main search area the results of that search will appear here Similarly if you previously selected Type Lead in the Search field you would see the results of that searc...

Страница 31: ...atch that tag The left and right arrows in the toolbar cycle up and down through the preset list either the full list or the filtered list that resulted from the use of one or more search terms 3 3 5...

Страница 32: ...presets you want to have in your playlist Once you have found the right preset click and drag it onto the playlist name Click and drag from the Search Results list onto one of the playlists To view t...

Страница 33: ...To delete a preset from a playlist click the x at the end of the preset row Click the X to remove a preset from a playlist 3 3 5 5 Delete a playlist To delete a playlist click the x directly to the ri...

Страница 34: ...USER MANUAL 34 3 4 Overview of the 3 sections of the ARP2600 V The ARP 2600V offers three main sections separated into flight cases From top to bottom The synthesizer section The Sequencer LFO Genera...

Страница 35: ...will help you to create an infinite variety of sounds These parameters are made up of Three oscillators VCO which release the audio signal through waveforms triangle sinusoid saw tooth square and rect...

Страница 36: ...f the reverberation which is already present in the original instrument The two effects can be found in the place of the left speaker grid in the bottom of the synthesizer section To open it click on...

Страница 37: ...s between the repetitions The delay speed can also be synchronized with the MIDI tempo The Delay effect settings 3 5 1 Tracking generator This very original module was added to modify the course of a...

Страница 38: ...6 step ARP model 1601 sequencer a module for play settings and a low frequency oscillator LFO which was added as a complement to oscillator2 which was often used as LFO 3 1 1 The ARP sequencer The ARP...

Страница 39: ...the top give access to the tuning of the 16 steps as well as management of their triggering gates The two lines of faders and selector switches The oscillator sets the speed of the sequencer as well a...

Страница 40: ...e Keyboard control module of the All mode you can keep the third oscillator as base sound and obtain an additional source of modulation for one of the 13 available destinations It is also possible to...

Страница 41: ...gle output and direct the cable to the VCO2 sin modulation input of the filter module Raise the potentiometer above it Lower the cut off frequency to hear the result more clearly The brightness of the...

Страница 42: ...hich can be used to program sounds It is also in this screen where the different patches needed in the programming of a sound are made It is sometimes necessary to connect a module in the programming...

Страница 43: ...thanks to modulation inputs which can be connected to the output of any module envelope low frequency oscillator LFO modulation wheel The oscillators can also be tuned and modulated separately with t...

Страница 44: ...waveform of oscillator 2 VCO2 Sin 4 1 2 2 Oscillator 2 Range General tuning of the oscillator by octaves Up or down 4 octaves and low frequencies Frequency Tuning by semi tone Initial Oscillator Freq...

Страница 45: ...Initial frequency potentiometer by one octave per semi tone For fine tuning set the Fine tune potentiometer to one semi tone Depending on the position of the Range selector switch the range is of 4 oc...

Страница 46: ...ove the corresponding jack You can also connect another source of modulation to each input This considerably widens the possibilities for sound creation For a conventional key follow setting in relati...

Страница 47: ...low pass 24 dB identical to that found on the ARP2600 a low pass a high pass a band pass and a notch 12 dB of the same kind as the one found on the ARP 2500 modulars The change of type is done by set...

Страница 48: ...in pre cabled for the manual setting of the modulation by sine waveform of oscillator2 ADSR Env re cabled for the manual setting of the modulation by ADSR envelope It possesses a cut off frequency set...

Страница 49: ...500 modular systems They all use a filtering slope at 12 dB octave These modes were added to increase the possibilities for sound creation on the ARP 2600 V 2 5 The low pass 12dB octave LP 12 The low...

Страница 50: ...The notch filter If you raise the resonance too high the result of the filtering will no longer be heard as the frequency band will be too big to allow efficient filtering 4 1 4 The envelopes Two in...

Страница 51: ...evel of the hold Release Release time Sets the release time Output Output Envelope output signal 4 1 4 2 AR Attack Attack time Sets the attack time Release Release time Sets the release time 4 1 4 3 T...

Страница 52: ...lifiers Voltage Control Amplifier VCA The amplifier is the last step in the conception of a preset It sets the general volume of the sound The VCA settings This module is very simple it contains Gain...

Страница 53: ...you to invert the input signal a positive going modulation an envelope for example will thus become negative A lag generator allows you to smooth an input signal For example the square signal from a...

Страница 54: ...form output of an oscillator for example The sample and hold settings Level Level Sets the Sample Hold modulation level Rate Rate Sets the Sample Hold clock speed External Input Noise gen Audio or mod...

Страница 55: ...modulation inputs Set the Sample and Hold clock speed potentiometer towards the bottom to clearly hear the alternation between the two modulations Inputs A B Audio or modulation signal input connectio...

Страница 56: ...e envelope follow level The VCA volume will modulate the volume of the VCA with the envelope of the drum loop audio sample Audio input Pre Amp Envelope follower audio input connection jack Output Outp...

Страница 57: ...ks 4 1 12 Tracking generator This very original module was added to modify the course of a modulation thanks to four curves which can be edited in real time by the user It can also be used as source o...

Страница 58: ...l Tool for drawing an exponential curve Sine tool Tool for drawing a sinusoid Square tool Tool for drawing a square signal Noise tool Tool for adding noise to an existing signal Eraser tool Tool for e...

Страница 59: ...ith or without reverberation Left output Output L Left output connection jack with or without reverberation Dry input right Dry input right Dry right input connection jack Dry input left Dry input Lef...

Страница 60: ...he tempo of the host application 4 1 15 Control voltages CV control These modulation outputs allow us to control the synthesizer parameters with the real time controllers of your MIDI keyboard The CV...

Страница 61: ...ard play mode monophonic unison polyphonic Detune polyphonic voices Unison detune Sets the detuning of the voices in unison mode Select trigger modes Trigger modes Selects trigger mode for keyboard no...

Страница 62: ...e LFO triangle waveform Square output LFO Square Audio output of the LFO square waveform Sawtooth output LFO Saw Audio output of the LFO sawtooth waveform Sine output LFO Sine Audio output of the LFO...

Страница 63: ...he modulation or tuning level for sequence steps Bus 1 2 and 3 switches Gate bus 1 2 3 Trigger selector switch for steps by bus 1 2 or 3 Bus inputs 1 2 and 3 inputs Gate bus 1 2 3 Input jacks for bus...

Страница 64: ...op Start Stop Button for manual starting stopping of the sequencer Start stop jack Start Stop jack Input jack for sequencer start stop Start stop pedal Start Stop pedal Pedal to start and stop the seq...

Страница 65: ...tization of the step signals in semi tones CV input CV input Jack inputs manage the reference voltage for the sequencer generally connected to CV keyboard control Kybd CV output Quantized inputs A and...

Страница 66: ...rs complementing sample reading or wave tables which progressively replaced the analog oscillators of the first synthesizers in the 80 s The ARP2600 or even your own ARP2600 V are among the best illus...

Страница 67: ...determines the harmonic richness of the audio signal On the ARP2600 V four waveforms are available o The saw tooth presents the richest audio signal of the four waveforms it contains all of the harmon...

Страница 68: ...ics odd only and will be very useful for creating sub basses flute sounds etc o The sinusoid is the purest of all It is a single harmonic and produced a very damped sound It can be used to reinforce t...

Страница 69: ...mbling a waveform change The ARP2600 V waveforms on the oscillator2 The synchronization of an oscillator with another creates more complex waveforms If for example you synchronize oscillator2 with osc...

Страница 70: ...n harmonics If you introduce a square or saw tooth signal the result can be quickly distorted but interesting for inharmonic sonorities like bell sounds or special effects for example The noise module...

Страница 71: ...en to this type of synthesis the harmonics situated around a cut off frequency It can be considered to be a sophisticated equalizer that reduces depending on the case the high or low frequencies of a...

Страница 72: ...unchanged Depending on the setting we will hear the sound becoming more or less brilliant more or less dampened This is the type of filtering that you will find more often than not on synthesizers tha...

Страница 73: ...band reject band reject filter or notch eliminates the frequencies inside a band of frequencies This filter is above all else interesting when we want to vary this band of frequencies with the frequen...

Страница 74: ...V you can increase the rate of resonance through the resonance potentiometer When you increase the resonance the filter becomes more selective the cut off frequency is amplified and the sound begins...

Страница 75: ...is directed to the speakers The ARP 2600V amplifier In conclusion here is a scheme that may help you to understand the composition of a basic sound 5 2 Complementary modules 5 2 1 The keyboard If we h...

Страница 76: ...s the gate type connection of analog synthesizers which triggers the sound when the key is pressed and stops when released In the second case so that the sound is correctly tuned with the keyboard not...

Страница 77: ...y is the time that the sound will take to decline after the key is played The Sustain is the maximum level of volume that the sound will reach when a key is pressed The Release is the decline time aft...

Страница 78: ...nnected On the ARP2600 V the LFO module is situated on the left of the sequencer The LFO module of the ARP2600 V For example If you connect an LFO to the modulation input of an amplifier the sound vol...

Страница 79: ...a LFO 5 2 4 The ring modulator The ring modulator is a module which multiplies two signals generally two oscillators so as to generate non harmonic frequential components We can thus easily obtain me...

Страница 80: ...lations by connecting a square or saw tooth waveform coming from a VCO to the sample and hold input The famous sound of R2D2 in Star Wars was created with the sample and hold module on the ARP2600 The...

Страница 81: ...ARTURIA ARP 2600 V USER MANUAL 81...

Страница 82: ...ramming of a richer sound several sources of VCO VCF filter VCA envelopes The second will take you through every aspect of the sequencer 6 1 Simple patch without cabling To begin we will look at progr...

Страница 83: ...n the filter module raise the vertical VCO1 potentiometer This is the volume of the first oscillator When you hold down a note the sound seems continuous and flat Raise the VCO1 potentiometer on the f...

Страница 84: ...e envelope on the filter Lower the filter cut off frequency Lower fully the Sustain potentiometer on the ADSR envelope and lower the Decay a bit as well set a value aroud 100ms The duration of the sou...

Страница 85: ...becomes more lively and fatter Lightly detune the second oscillator Set the VCO2 an octave lower set the Range octave selector to 16 Set the Range octave selector to 16 Finally lightly raise the filt...

Страница 86: ...rpass the limits of the pre cabled internal connections between the modules don t need cables Thanks to this method you will discover the richness of the ARP2600V2 This preset contains three oscillato...

Страница 87: ...same with oscillator2 direct the saw tooth waveform to the VCO2 input on the VCF mixer Still on the same mixer raise the volume of oscillator3 to complete the base tone You will hear a sound composed...

Страница 88: ...ncy potentiometer Set the LFO oscillation speed with the LFO Speed potentiometer For this type of sound choose a slow speed around 0 10 Hz Set the LFO oscillation speed Raise the Attack time A around...

Страница 89: ...sition so as to be able to play chords Then choose the number of polyphonic voices by clicking on the voices button situated on the toolbar For exemple choose 6 voices Polyphonic mode At this stage yo...

Страница 90: ...ator With this example you will discover a few of the many possibilities for modulation with the tracking generator LFO This module is one of the major additions to the ARP2600 V compared to the origi...

Страница 91: ...acking line to the filter modulation input Raise the potentiometer above the modulation input jack This is the modulation rate The modulation rate Next click in the central part A secondary window app...

Страница 92: ...his is done play a note to hear the result of this modulation You can set the oscillation speed with the Freq potentiometer which is on the left of the tracking generator Drawing a freehand curve If y...

Страница 93: ...s to master and hear 6 4 Patch using the sequencer to create a melody The ARP sequencer model 1601 was one of the most frequently used sequencers of its time the 70 s It was added to the ARP2600 V to...

Страница 94: ...D Connect the Quantized output A of the sequencer to the KBD CV input oscillator1 Play a note on your keyboard C4 for example The sequencer starts and you will hear a series of 16 notes of identical p...

Страница 95: ...he sequencer will only play half of the sequence 2 independent sequences of 8 steps To play the 16 or 8 steps randomly switch the sequential random selector switch to the right random To play the step...

Страница 96: ...the second modulation input acting on the filter cut off frequency ADSR Raise the potentiometer of the same name to increase the depth of this modulation Connect the sequencer B output to the second m...

Страница 97: ...tion sequence on the last eight For this set the 1 16 2 8 interrupter to 2 8 The sequencer will only play half of the sequence It is of course possible to connect any other ARP parameter to the sequen...

Страница 98: ...purchases from the Arturia Online Store please contact Arturia on the internet website www arturia com support askforhelp purchase 1 5 Arturia reserves all rights not expressly granted in the EULA 2 R...

Страница 99: ...long as only one installation is used at any given time The Licensee must register the Product to Arturia to get access to client support and to activate his Product An internet connection is required...

Страница 100: ...e samples sound sets or audio may not be repackaged in whole or in part as audio samples sound libraries or sound effects 6 Data Protection Arturia attaches great importance to compliance with legisla...

Страница 101: ...ages Some states do not allow limitations on the length of an implied warranty or the exclusion or limitation of incidental or consequential damages so the above limitation or exclusions may not apply...

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