Leipzig-k - Analogue Solutions
Contents
1. Lew Zu R K ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 NIVLSNS Taa A920309 133 Ava3aqd e wvyoodd NOILVNILSAO 4 394n0s ALVA 041 NOILVINAON aon LANS O aai Ee amp oe c 1 11 08 ipzig e ANALOGUE SOLUTIONS Le SPECIFICATION Brief Overview Leipzig is a self contained TRUE analogue synthesiser The voice circuitry is entirely analogue using all discrete and op amp components There is no voice DSP Leipzig has a similar sound and specification to the classic Moog Prodigy Rogue synthesisers but with many improvements such as MIDI and more modulation paths VCO1 Tune Glide PW PWM Mod Source amp Amount controls Saw out Pulse out VCO2 Tune Glide Sync PWM Mod Source amp Amount controls Saw out Pulse out VCF Low pass filter Cut off Emphasis Key Track ENV1 Mod Mod Source amp Amount controls Mixer Audio source mixer including external audio inputs VCA Mode switch Output volume ENV1 ASR envelope with trigger LED ENV2 ASR envelope with trigger LED LFO Square amp Triangle waves Noise Generator White noise SUB oscillators 1 from VCO1 2 from VCO2 MIDI to CV Converter 16 bit high resolution with auxiliary controller CV2 output modulation CV Many modulation possibilities Rotary controls 25 Rotary switches 6 ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 3 Push button 1 LEDs 6 Jack sock2. select the parameter ensuring the cursor is under the appropriate parameter then use the buttons to edit the value There are four buttons U decreases data by 1 U increases data by 1 10 decreases data by 10 10 increases data by 10 The U inplies Units to edit the units OCT OCT You can quickly alter the keyboard octave setting four values Octave setting can also be edited via the LCD The octave paramter buttons are used to transpose the key board in whole octaves Transpose and Octave parameters only affect the keyboard data That is the note information sent to the voice circuits and the data sent to the MIDI Out socket These pa rameters will not affect MIDI information received at the MIDI In socket STORING PARAMETERS The new value of any parameter you edit will be lost if you switch off the machine So ensure you store the setup before switching off Press the PAGE button until you get to the store page Then Press OCT to store the setup Then the LCD will revert back to PAGEO If you do not wish to store then just press PAGE again to return to PAGEO ANALOGUE SOLUTIONS LeipZig e amp oe c 1 11 08 22 RESTORING FACTORY DEFAULTS Hold down button 8 OCT whilst turning on the machine to restore factory default settings PARAMETERS AND PAGES IN MORE DETAIL Page number 0 5 is displayed on the far left as a single digit The top line shows parameter names bottom line show parameter valu
3. NT control alters the level of modulation The modulation sources available are VCO1 LFO triangle LFO Square EG1 VCO2 square VCO2 LFO triangle LFO Square EG2 MIDI modulation CV CV2 FILTER VCO2 square MIDI modulation CV CV2 FILTER LFO triangle LFO Square These are not the only modulation types available Other modulations are available within each feature s own panel e g VCO1 and 2 can have PWM the LPF has EG1 and KEY TRACK modulation ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 13 MIDI to CV CONVERTER Note for Leipzig k see separate dedicated MIDI section to wards the end of the manual The MIDI to CV converter MCV is a device that converts some MIDI signals into analogue voltages It allows analogue synthesiser circuits to be integrated and used with your MIDI set up PROGRAM MIDI messages responded to are Note on off Velocity Mod Wheel All notes off Note messages provide analogue outputs for pitch CV auxiliary CV and Gate Note The PROGRAM button is absent from the K version since all MIDI set up editing is done via the LCD and 8 edit buttons For details on MIDI set up of the CV converter for the K version see the section later in the manual for Leipzig k LED The Activity LED will briefly light whenever it receives a MIDI message that itself will respond to i e a message on the correct channel and of correct type note on off and mod wheel if CC VEL source is set to mod
4. ORMANCE section LFO2 SPEED This control alters the speed of LFO2 VCO1 MOD LEVEL This control affects the pitch modulation level of VCO1 In the centre the level is zero Anticlockwise assigns the Mod Wheel analogue voltage to control pitch Clockwise assigns LFO2 to control pitch vibrato triangle wave VCO2 MOD LEVEL This control affects the pitch modulation level of VCO2 In the centre the level is zero Anticlockwise assigns the Mod Wheel analogue voltage to control pitch Clockwise assigns LFO2 to control pitch vibrato VCF CUTOFF MOD LEVEL This control affects the cut off modulation level of VCF In the centre the level is zero Anticlockwise assigns the Mod Wheel analogue voltage to control cut off Clockwise assigns LFO2 to control cut off wah wah great vintage term PITCH BEND WHEEL Pitch Bend range can be set via the LCD display Default value is usually set to 2 semitones The Pitch Bend MIDI data is sent to the MIDI OUT socket and will also control the onboard MIDI to CV converter to affect the pitch of both VCOs equally ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 20 MOD WHEEL The mod wheel will send MIDI controller one data to the MIDI Out socket CV2 can be set to be modulated my any controller therefore can be set to one to be controlled by the mod wheel The actual analogue voltage not the digital MIDI data can also be used as a Mod source to control the pitch of VCO1 and VCO2 or the cut off
5. a life far longer than any software plug in or DSP synth APPLICATIONS MONOSYNTHESISER Leipzig is for use any time you need analogue sound effects fat basses screaming leads beeps tones zaps and all the other crazy sounds associated with analogue syn thesis Use in place of your boring digital synths and DSP soft synths EFFECTS PROCESSOR Leipzig has an audio input socket so you can feed external sounds into the onboard analogue filters for analogue processing ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 5 SAFETY INSTRUCTIONS Please read carefully before using e Only use the correct power adaptor 230V or 115V whatever your country needs s Never handle the adaptor with wet hands s Never excessivly bend the adaptor cable or get it trapped or place heavy objects on it If the adaptor cable becomes damaged replace the adaptor s Ensure the unit is disconnected from the mains before moving or cleaning e Always disconnect the unit from the mains if there is lightning in your area s Ensure the unit is on a stable surface and never place heavy objects on top of it s Never allow young children or animals to operate the unit or adaptor s Do not use excessive force when using the controls or inserting cables to the con nectors e The unit should not be operated in the rain or near water and should not be exposed to moisture If the unit is brought from a cold environment to a warm one the unit should be left t
6. e PAGEO 1 RX CHAN 2 TX CHAN 1 16 1 16 Details 1 Sets the MIDI receive channel for the internal MIDI CV converter 2 Sets the MIDI transmit channel of the keyboard PAGE1 3 TRANSPOSE 4 OCTAVE 000 015 000 003 Details 3 Transposes the keyboard in semitones upwards 4 Transposes the keyboard in 12 semitone increments i e whole octaves PAGE2 5 AUX CC 6 PB RNAGE 000 127 000 007 Details 5 changes the MIDI controller number for CV2 aux CV 127 is used to set velocity as the source This setting will affect which MIDI contrller the keyboard or external MIDI will be the source for modulating CV2 aux CV The controller you set can then be used to control whatever synth setting is set to MIDI on the front panel for example filter cut off 6 Pitch bend range 0 7 semitone range ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 23 PAGE3 7 F TUNE 8 P SCALET 0000 255 000 255 Details 7 A very fine tune setting This is used to trim the internal MIDI CV DAC Normally there would be no need to alter this 8 This alters the octave spacing for the MIDI CV converter This affects the pitch scal ing of the VCOs Normally there would be no need to alter this PAGE4 9 LOCAL 10 0 1 not used Details 11 This turns on off Local 0 off This means the keyboard will not play the internal voice The voice can only be controlled via the CV Gate sockets or an external MIDI device such as a sequencer 1 o
7. ets 6 35mm mono 3 MIDI Sockets 2 Rugged steel contruction Dimensions Height x 5U Weight xKg Power xX Accessories Manual Mains adaptor 230v Leipzig k has the addition of Headphone output socket CV1 CV2 Gate input and output sockets 2nd LFO and VCA used for modulation via 4 rotary controls Additional rear panel MIDI LED LFO2 LED Mod wheel Pitch Bend Wheel LCD backlit display 8 eidting buttons 37 velocity sensative keys MIDI Out ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 INTRODUCTION Congratulations on buying the Leipzig synthesiser Leipzig is part of the Analogue Solutions range of analogue music equipment Leipzig is a precision electronic musical instrument It combines all the often needed music electronic circuitry to make a music synthesiser in one compact module No compromise has been made with the construction of Leipzig Cheaper options in parts have not been used Full rugged steel case no plastic mouldings Good quality smooth potentiometers fully sealed against dust Good quality knobs with spun aluminium caps High grade double sided lead free circuit board All power and signal input outputs have EM filters to remove external noise and im prove immunity High Quality DAC for MIDI to CV conversion 16bit Very stable MIDI to CV conversion Very stable analogue oscillators Expensive blue LEDs Hand built by humans Lasting quality and appeal with
8. h the cut off is modulated by envelope generator 1 Bal ance this control with the CUT OFF control Filtering External Sound Sources External sound sources such as vocals guitars mixer sends samplers etc can be sent through the filter for extra treatment Note mic s and guitars may need pre amp ing use if the signal is too quiet ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 10 Simply plug the sound source into the rear panel EXT1 socket Turn the mixer control EXT NOISE to EXT and up to a suitable level You may wish to return the VCO1 and VCO2 mixer controls to their centre positions so the VCOs cannot be heard Turn the VCA mode switch to THRU ON This will leave the VCA open so aconstant signal can be heard Finally play around with the filter and modulation settings as neccessary The VCO signals can also be introduced and use the various VCA modes and enve lopes if you wish to contour the sound level and add additional effects ENVELOPE GENERATORS LED indicators These will turn on each time the EGs are triggered EG1 2 ASR EG1 and EG2 are identical They are ASR attack sustain release envelope generators Use to modulate various param eters of the synthesiser ATTACK Controls the Attack time This is the rate at which the envelope signal will take to reach full level when the MIDI note key pressed DECAY REL Controls the Decay or the Release time the time it take the envelope signal t
9. ket if you want to control Leipzig k s the CV2 patch points selected via the rotary switches using an external synth GATE in socket This is a 6 35mm socket This is a Gate input socket if you want to trigger the 2 en velope generators via an external synth Triggering is positive 5v or more signal CV GATE JACKS If you insert a jack plug into the CV in or out sockets then in internal connection will be broken E g if you connect an external CV sequencer or MIDI to CV converter to the CV1 CV2 Gate In sockets you will disconnect the Leipzig s internal MIDI CV converter from the voice circuits This way you can directly control the voice circuits from an external devied The internal MIDI CV converter will still work and its signals still available from the CV1 CV2 Gate Out sockets Likewise if you connect the CV1 CV2 Gate Out sockets to an external analogue synth the internal MIDI CV converter will be disconnected from the internal voice circuits In summary the signal flow is such Internal MIDI CV converter gt CV Gate Out Sockets gt CV Gate In Sockets gt Internal Voice circuits By inserting jacks into either the In or Out sockets you will disconnect the internal MIDI CV converter from the voice circuits ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 19 PERFORMANCE Top Panel cus AC ch us PERFORMANCE LFOZ ARP mw VEOIZN mw VEOZ mw EFA RATE BS Additional controls as found in the PER vcoz F
10. level Use this setting if you wish to use the Filter as an effects processor to process external audio fed into Semblance VOLUME This sets the output volume of synth i e the output level from the VCA that is output from the SIGNAL output socket LFO This is in the MODULATION panel see later The Low Frequency Oscillator LFO is basically identical to a VCO it is another oscillator except that it produces periodic wave forms of low frequency typically sub audio These slow cyclic waveforms are used for modulating other circuit parameters for example for sweeping the filter cut off up and down either slowly for a nice sweep or faster for a wah wah type effect It could be used to modulate the VCO pitch for vibrato The LFO is found in the MODULATION panel see diagram LFO RATE This sets the frequency speed of the LFO LFO SPEED LED indicator ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 12 This wil turn on each time the LFO signal is at a positive voltage indicating the speed of the LFO waveform MODULATION Ky hy N LEO RATE MODULATION SOURCE DESTINATION The modulation panel is where you route SOURCE modulation signals to their DESTINATIONS Think of it as a modulation matrix There are three modulation destinations in this panel EET VCO1 pitch VCO2 pitch FILTER cut off These can be modulated by the sig nals selected by their respective SOURCE switched The AMOU
11. level of the filter via the LEVEL controls in the PERFORMANCE section MISC DETAILS Top and rear panel MIDI LEDs show condition of Gate note on off As with computers and other CPU controlled devices when turning the unit off then on again always ensure you leave switched off for a second or two to ensure the CPU will boot up correctly There will no doubt be a sofware update at some point Any update will be made known on the Leipzig web page Hopefully the software is bug free but if you spot anything let us know But first ensure it is not user error If you require any updates then there is only a small charge to cover the cost of the CPU and postage This will be 5 including worldwide postage and instructions ANALOGUE SOLUTIONS LeipZig e amp oe c 1 11 08 et MIDI DATA EDITING The keyboard MIID setup can be edited using the butttons and LCD All the param eters are self explanatory but details are here PAGE PARAM 10 U 10 U There are six pages of parameters Each page contains two sets of parameters To scroll through the 6 pages and also enter the STORE page press the PAGE but ton Think of this as a Y setting in an X Y data table To move the cursor between the 2 sets of data in each page press the PARAM button paramater Think of this as an X setting in an X Y data table So using the PAGE and PARAM buttons you can easily step through the param eters To alter a parameter s value furst
12. n This means the keyboard will play the internal voice Eitherway the note date you play on the keyboard will be sent to the MIDI Out socket 12 This setting is not used However it will display the last note played PAGES This is the page used to store set up as described earlier ANALOGUE SOLUTIONS LeipZig e amp oe c 1 11 08 24 Specification subject to change without notice Warranty This unit comes with a 1 year from purchase date back to base warranty i e cus tomer must arrange and pay for carriage to and from Analogue Solutions or the dealer from which purchased This warranty shall not apply where the product has been subject to alteration misuse accident neglect such as extremes of temperature and or moistur or to wear resulting from normal use At the sole discretion of Analogue Solutions the warranty is deemed to be void should the unit be or considered to have been opened or any other modifications or tampering be carried out by unauthorised parties CE Compliance This unit complies with Complies with EU Directives 73 23 EEC and 89 336 EEC C Standards EN55103 1 EN55103 2 EN60065 Leipzig user manual Analogue Solutions web www analoguesolutions com web www analoguesolutions co uk email semblance analoguesolutions com tel fax 44 0 1384 35 36 94 post 56 kingsley road kingswinford dy6 9rx uk ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 25
13. nd no more than 3 metre cable lengths ANALOGUE SOLUTIONS LeipZig e amp oe c 1 11 08 17 Leipzig Keyboard Leipzig k Details subject to change The K versions is essentially identical to the R version The key differences are out lined below and explained in more detail later No MIDI button since all editing done via 8 edit keys and LCD Performance section a 2nd LFO whose depth is controlled with the Mod wheel Rear panel CV1 CV2 Gate input and output sockets Rear panel headphone socket LCD and edit buttons to enable MIDI set up to be edited 37 note velocity sensative keyboard Pitch and Mod Wheels Rear Panel HEADPHONE socket This is a 6 35mm socket The signal is mono Level is controlled together with the Main Out labelled VCA OUT socket level using the VOLUME control on the front panel Q CV1 out socket This is a 6 35mm socket The pitch CV signal is fed out here from the MIDI CV con verter CV2 out socket This is a 6 35mm socket The aux controller CV signal is fed out here from the MIDI to CV converter Q GATE out socket This is a 6 35mm socket The Gate signal is fed out here from the MIDI to CV con verter ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 18 CV1 in socket This is a 6 35mm socket This is a pitch CV input socket if you want to control Leipzig k s pitch from an external synth Scaling is 1v Oct CV2 in socket This is a 6 35mm socket This is a CV input soc
14. o reach the ambient temperature e Keep unit away from heat sources such as radiators ovens heaters etc s Never allow the unit to get wet Do not operate it near water like pools sinks bath rooms etc Do not place beverages on or near it s Never open the case or attempt to make repairs Refer any servicing to a qualified service personnel Preventing damage to other connected devices Leipzig has a very high dynamic range It is capable of produce loud signals of very high and sub sonic frequencies that could blow inadequate speakers if played too loud It is recommended that input levels to external equipement mixers amp s etc is kept low when first connected and then sowly increased to a userable level Maintenance Instructions Any cleaning of the the case should be done with a clean lint free cloth DO NOT USE SOLVENTS OR CLEANERS as this will deteriorate the exterior appearance of the equipment Mounting Mounting does not mean place on the wall or To make love to in this instance Place the unit soundly on any stable surface so he cannot fall off or over causing it or yourself injury ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 6 CIRCUITS IN DETAILS Here follows details on all the sockets and controls with brief simplified explanations of what the circuits do We have not gone into technical details on how and exactly what each circuit does but tried to explain each control s function and effect Anyone
15. o return to zero when the key is released SUSTAIN If this switch is on then the DECAY REL control becomes Release If a key is held down the EG is sustained at full level SUSTAIM If this switch is off then the DECAY REL control becomes Decay There will be no sustain Note this switch has 4 positions The left 2 positions turn SUSTAIN off and the right 2 on We are unable to get 2 way switches for the series of potentiometers switches that we use ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 11 VCA The Voltage Controlled Amplifier VCA is the circuit that is used to change the output volume Normally an envelope signal would be used to do this so the sound starts loud then gradually fades away The filter audio output is hard wired to the VCA signal input Mode rotary switch control The VCA can be controlled in 4 modes EOG When EG1 is selected the envelope signal of EG1 is used to modulate the VCA level Use it if you require the VCA level to change over time EG2 When EG2 is selected the envelope signal of EG2 is used to modulate the VCA level Use it if you require the VCA level to change over time GATE When GATE is selected the MIDI converter s Gate signal is used to modulate the VCA With this the VCA level is either off or full on The audio envelope would be like an organ s with no attack or decay time THRU When THRU on or bypass is selected the VCA is left permanently on at full
16. om the mains supply before switching to the correct voltage for your mains supply MIDI IN Plug your MIDI cable in here Connect this to the MIDI out or thru of your MIDI con troller MIDI THRU The MIDI data coming into the In socket is copied to the Thru socket This is so you can control additional devices from your MIDI controller without the need of a MIDI thru box The Thru socket will not function when in Poly mode EXT1 signal input socket This is the input socket to feed audio signals into the synth The signal is routed to the EXT audio input of the mixer EXT2 signal input socket This a second input socket to feed audio signals into the synth The signal is routed to the EXT audio input of the mixer SIGNAL output socket This is the main audio output Leipzig It is the signal output from the VCA post Volume control All jack sockets are 6 35mm mono Try to keep your leads under 3M to keep the signal quality as clean as possible ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 16 REAR PANEL AUDIO CONNECTIONS The main signal output is on the rear panel and is oddly labelled VCO OUT Connect this socket to a spare mixing desk input channel If you want to feed external signals into Leipzig use the rear panel EXT1 or EXT2 sockets Maybe hardwire it from your desk s effect send It is recommended to keep your MIDI and CV audio cables as short as possible to keep the signal quality as high as possible We recomme
17. or turn to the left or right to select either of two sound sources NOISE EXT1 level Turning the control anti clockwise in increasing amounts sends the signal if any coming in off the rear panel EXT1 socket to the mixer Turning the control clockwise in increasing amounts sends white Noise to the mixer In a central position no signal is sent to the mixer 1 2 SUB level SUB is a duplication of the VCO square wave output but at a lower octave Use to beef up the sound Turning the control clockwise in increasing amounts sends a 2 octave VCO2 square wave signal to the mixer Turning the control anti clockwise in increasing amounts sends a 1 octave VCO2 square wave signal to the mixer In a central position no signal is sent to the mixer Saw Pulse VCO1 level Turning the control clockwise in increasing amounts sends VCO1s pulse signal to the mixer Turning the control anti clockwise in increasing amounts sends VCO1s sawtooth wave signal to the mixer In a central position no signal is sent to the mixer Saw Pulse VCO2 level Turning the control clockwise in increasing amounts sends VCO2s pulse wave signal to the mixer Turning the control anti clockwise in increasing amounts sends VCO2s sawtooth ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 9 wave signal to the mixer In a central position no signal is sent to the mixer LED indicators Each oscillator has it s own frequency LED This is taken from the VCO s
18. pitch but of course divided down enough octaves so you can see it flash VCF The voltage controlled filter low pass filter VC LPF is used to alter the tone of the signal coming from the mixer output VCOs Noise and is the heart of what gives an analogue synth its char acter CUT OFF This sets the cut off frequency the point at which the LPF will start to filter out harmonics EMPHASIS Emphasis Resonance Q or Feedback is a feature of adding feedback to the filter circuit The output of the filter is fed back into the filter input Emphasis sets the level of feedback As the control is increased to higher levels the filter will self oscillate The oscil lation frequency is set by the cut off control Use Emphasis to alter the tone of the filter effect It can be used to create squiggy sounds and pulse hits KEY TRACK The pitch CV CV1 also controls the filter cut off The KEY TRACL control alters how much this happens Key Track is some times also known as Key Follow This is used when you want a brighter sound as you play a higher pitch since an increasing pitch means higher CV1 which in turn increases the cut off frequency assuming the KEY TRACK control is up This brightening of sound is how real sound behaves Real instruments usually sound brighter in their higher registers KEY TRACK can also be used to play the resonance but setting EMPHASIS to self oscillate ENV1 MOD This control alters how muc
19. r signal selected by the switch will reset the waveform of a slave signal VCO2 in this case each time the master waveform starts a new cycle Try the different settings and listen to the effect You may have to modulate the pitch of either VCO1 or VCO2 to enhance the effect There is a balancing act between the pitch of the two sound sources usually the 2 VCOs to get a good effect Sync source choices are VCO1 square wave LFO square wave EXTernal signal Off flat line symbol PWM Two independent pulse width modulation controls PWM one for each VCO This allows modulation of the square wave duty cycle Once again don t worry about this technically just enjoy the effect Turn to the left for LFO triangle wave modulation Turn to the right for Envelope 2 modulation Centre is zero no modulation For VCO1 it is best to first put the Pulse Width control to the centre before using PWM otherwise the sound might cut unless that is the effect you want NOISE GENERATOR The noise generator produces white noise This is like the hiss you hear between radio stations The signal is available for filtering via the EXT NOISE mixer control Noise would be used for sound effects such as breath wind percussion etc ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 8 MIXER The mixer is used to bring various audio source signals together for filtering There are four mixer controls In all cases centre is zero volume
20. wheel It remains on when Red Square is in Program mode The MIDI to CV converter produces three kinds of signal CVT This is a pitch CV and is hard wired to control both VCO pitches CV2 This is a modulation CV that is wired into the modulation panel Gate This is a note on off signal wired into the VCA and EG triggers To Set MIDI Receive Channel Press and hold the Program button Then do either Press a MIDI key This will set and store the receive channel to the channel received in the note data CV2 will set itself to Velocity Release the Program button Or Move a Continuous Controller This will set and store the receive channel to the chan nel received in the CC data ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 14 ZHOS ASLL ZHOS AOEZ L NS SISNA VWOOSL XZ NIVLIHG 1v339 NI SOVW 43409 vedo JOU op YIOYS 311 99j3 jo YSis JUBABIG OF aimsiow Jo ue o yun sip asodxe jou op wous Jo am jo weu Juaraid OL seeuibue payyenb o Guas 19191 aseajy apisul spe BuiBueyo ajojag surew PauUUODSIQ yjeawapun LOS au Duren aBeyor sulew 1794102 179192 JI Zena 1 EE 60 Tn REAR PANEL SISTER 16 ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 REAR PANEL DETAILS The rear panel is shown above and detailed below POWER IN This unit features a standard IEC power socket Check the correct mains voltage is selected on the switch on the bottom panel 115V or 230V AC Disconnect the unit fr
21. who has used synthesisers before should be familiar with the terms used and therefore be able to predict their behaviour and how they affect the sound The best way to learn how to use Leipzig is to go straight ahead and play with it Reading of this manual may only be neccessary for finer operational detail VCO 182 WC OSCILLATORS The voltage controlled oscillators VCOs 1 and 2 produce the raw audio waveform usually used as the initial source for sound creation They provide cyclic audio waveforms that can be pitched VCOs usu ally receive treatment from the VCF to turn their basic tones into pleasant sounds TUNE Left TUNE is a master tune affecting BOTH oscillators Right TUNE is a detune affecting only oscil lator 2 The detune TUNE control can be used for playing VCO2 at intervals like say a 3rd up from VCO1 GLIDE Two independent GLIDE controls por tamento for the oscillators Each time you play a new note the pitch will glide from the last note to the new note The GLIDE control alters the speed At minimum there is no glide Pulse Width Just below VCO1 GLIDE control For VCO1 only This alters the pulse width for VCO1 s square wave alters the duty cycle If you do not understand this don t worry about it Just turn it and hear how the tone changes ANALOGUE SOLUTIONS Leipzig e amp oe c 1 11 08 7 SYNC VCO2 only This switch routes a sync signal to VCO2 Oscillator sync is where a maste
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