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1. ANALOGUE SOLUTIONS LeipZig e amp oe c 1 1 08 Contents SPECIPICATION uu aaa 5 INTRODUCTION 7 PPE LOIN 7 SAFETY INSTRUC HONS ne 8 CIRCUS IN DETAILS uu 9 V O S Stenden 9 NOISE GENERATOR 10 a 11 VOF ua m Sm ua 12 Filtering External Sound Sources 12 ENVELOPE GENERATORS u u l l uu uu naaa 13 ECT ASR 13 VGA nende 14 nennen E NEEE ua 14 MODULATION Sententia 15 CY CONVERTER uuu 16 To Set MIDI Receive Channel 16 HEAR PANEL u 17 REAR PANEL DETAILS u lll 18 REAR PANEL AUDIO CONNECTIONS 19 ANALOGUE SOLUTIONS LeipZig e amp oe c 1 1 08 2 k 5 0 1 7705 FIIOTIONY AIJ y SISVHAIWS 5 O erp 5 lt gt ere re 5 01 71711950 El Zeil 1 SNOUILIIIOS 7790 Nivisns Nivisns ANnOWY 4 AN gt lt AAM gt lt WVO Md SISVHdNA O LI lt alva SHYOLVT2. 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 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 1 08 7 SAFETY INSTR
3. 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 We will normally carry out most the labour or repairs free of charge for an extended period of an additional 4 years from purchase date but this may not included cost of any damaged parts which will be charged for At the sole discretion of Analogue Solutions the warranty is deemed to 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 Standards EN55103 1 EN55103 2 EN60065 ANALOGUE SOLUTIONS Leipzig e amp oe c 1 1 08 20 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 1 1 08 21
4. 1 1 08 13 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 When 1 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 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 ar
5. IIJSO JA ANALOGUE SOLUTIONS Leipzig e amp oe 1 1 08 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 1 08 5 Push button 1 LEDs 6 Jack sockets 6 35mm mono 3 MIDI Sockets 2 Rugged steel contruction Dimensions Height x 5U Weight xKg Power x Accessories Manual Mains adaptor 230v ANALOGUE SOLUTIONS Leipzig e amp oe c 1 1 08
6. Leipzig e amp oe c 1 1 08 15 MIDI to CV CONVERTER 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 MIDI messages responded to are Note on off Velocity Mod Wheel All notes off Note messages provide analogue outputs for pitch CV auxiliary CVand Gate Activity 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 wheel It remains on when Red Square is in Program mode PROGRAM The MIDI to CV converter produces three kinds of signal CV1 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 CV2 will set itself to the CC number received Release the Program button Note The Program button m
7. OGUE SOLUTIONS Leipzig e amp oe 1 1 08 12 Turn the VCA mode switch to THRU ON This will leave the VCA open so a constant 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 genera tors Use to modulate various parameters 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 to return o 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 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 ATTACK DECAY REL DECAY REL OFF ON ANALOGUE SOLUTIONS Leipzig e amp oe c
8. UCTIONS Please read carefully before using Only use the correct power adaptor 230V or 115V whatever your country needs e Never handle the adaptor with wet hands 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 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 e Ensure the unit is on a stable surface and never place heavy objects on top of it Never allow young children or animals to operate the unit or adaptor Do not use excessive force when using the controls or inserting cables to the con nectors 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 to reach the ambient temperature Keep unit away from heat sources such as radiators ovens heaters etc 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 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 inadequat
9. e 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 or 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 1 1 08 8 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 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 amp 2 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 usually recei
10. e 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 This wil turn on each time the LFO signal is at a positive voltage indicating the speed of the LFO waveform ANALOGUE SOLUTIONS Leipzig e amp oe c 1 1 08 14 MODULATION MODULATION The modulation panel is where you route SOURCE modulation signals to their DESTI NATIONS Think of it as a modulation matrix There are three modulation destinations in this panel SOURCE gt DESTINATION VCO1 pitch LI 2 VCO2 pitch mu FILTER cut off These can be modulated by the sig nals selected by their respective SOURCE switched The AMOUNT 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 LFO triangle LFO Square VCO2 square MIDI modulation CV CV2 These are not the only modulation types available Other modulations are available within each feature s own panel e g VCO1 FILTER T 2 can have PWM the LPF has EG1 and KEY TRACK modulation ANALOGUE SOLUTIONS
11. 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 wave signal to the mixer In a central position no signal is sent to the mixer ANALOGUE SOLUTIONS Leipzig e amp oe 1 1 08 11 LED indicators Each oscillator has it s own frequency LED This is taken from the VCO s 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 character 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 con
12. on 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 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 1 08 10 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 or turn to the left or right to select either of two sound MMS 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
13. t 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 1 08 18 REAR PANEL AUDIO CONNECTIONS The main signal output is on the rear panel Connect this socket to a spare mixing desk input channel If you want to feed external signals into Leipzig use the rear panel EXT1 socket Maybe hardwire if 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 recommend no more than 3 metre cable lengths ve OSCILLATORS MIXER ve LPF MODULATION SOUND SOURCE Synth sampler guitar etc To main mixer hard disc recorder etc ANALOGUE SOLUTIONS Leipzig e amp oe c 1 1 08 19 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
14. trol is IVT TPN P lincreased to higher levels the filter will self oscillate The oscillation 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 KEYTRA CL control alters how much this happens Key Track is sometimes also known as Key Follow This is used when you want a brighter sound as you play 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 instruments usually sound brighter in their higher registers KEY TRACK can also be used to play the resonance but set ting EMPHASIS to self oscillate ENV1 MOD This control alters how much the cut off is modulated by enve lope generator 1 Balance 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 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 ANAL
15. ust be held in whilst pressing a key or moving a control ler CC number 7Fh is reserved Avoid using this controller ANALOGUE SOLUTIONS Leipzig e amp oe c 1 1 08 16 REAR PANEL nau ul ZHOS ASLL ZHOS AOEZ gt 9 E S 83813 VWOOSL XZ 1 9 NI 3qVW 1 vedo jou op YIOYS 2114982 JO WS JYUBABIAG OF aimsiow Jo O yun asodxe jou op yaoys jO 0 Juaraid Buloimses j j se ja sped Jesn ON pauuoasigq 19809 39998 JI 1 e TIO TER 17 ANALOGUE SOLUTIONS Leipzig amp c 1 1 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 from 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 no
16. ve treatment from the VCF to turn their basic tones into pleasant sounds TUNE Two independent TUNE controls for the oscillators Controls the course pitch of the VCO Range is about 2 octaves GLIDE Two independent GLIDE controls portamento for the oscil lators 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 SYNC VCO2 only This switch routes a sync signal to VCO2 Oscillator sync is where a master 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 ANALOGUE SOLUTIONS Leipzig e amp oe 1 1 08 9 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 Two independent pulse width modulation controls PWM one for each VCO This allows modulation of the square wave duty cycle Once again d
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