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Leipzig-S/SK User Manual 

 

16

 

LFO – LOW FREQUENCY MODULATION | Analogue Solutions 

 

 

Sometimes  called Q  or  Emphasis  on other  synths.  This  changes  the  Q,  or feedback  at 
the cutoff frequency. In simple terms, the squigyness of the sound! 

The resonance is quite sensitive at the upper end of the control’s travel. 

 

 

 

 

KEY TRACK 

 

This control routes pitch CV to the filter cutoff. When it is turned up, as you play higher 
up the keyboard, the filter will open up. This makes the sound get brighter as you play 
up the keyboard. 

 

EG MODULATION 

 

This control routes either envelope to modulate the frequency cutoff. The centre position 
is off/no modulation. Modulation can be either EG1 (left) or EG2 (right). 

 

LFO – LOW FREQUENCY MODULATION 

The  LFO  produces  both  triangle  and  square  waveform  outputs.  The  LFO  modulation 
signal is typically used to create ‘wah-wah’ or vibrato type os effects. 

Summary of Contents for LEIPZIG-KS

Page 1: ...Leipzig S SK User Manual Analogue Synth Sequencer Analogue Solutions...

Page 2: ...trol oscillators 9 VCO1 10 VCO2 11 MIXER 13 VC LPF VOLTAGE CONTROLLED LOW PASS FILTER 15 LFO LOW FREQUENCY MODULATION 16 MODULATION 17 VCO1 17 VCO2 18 VCF 19 EG1 EG2 ENEVELOPE GENERATORS 20 VCA VOLTAG...

Page 3: ...o get this going without reading the manual However we advise you read the safety information and further read the rest to discover how to use some of the unique features This manual does not aim to t...

Page 4: ...ables could cause a malfunction or a shock or fire hazard Do not allow any small parts like pins coins liquids flammable material to enter the unit Immediately disconnect the mains supply and adaptor...

Page 5: ...adaptor or any cables with wet or moist hands Before cleaning the unit disconnect from the mains Whenever you suspect lightning in the area disconnect the AC adaptor Did you read all this Good now yo...

Page 6: ...ed with water To remove stubborn dirt use a cloth impregnated with a mild non abrasive detergent Afterwards be sure to wipe the unit dry thoroughly with a dry cloth Be sure to disconnect the AC adapto...

Page 7: ...lation circuitry Fat Moog style filter 2 VCOs with Glide and Sub VCOs Osc Sync Cross Mod Plenty of modulation routing possibilities Analogue step sequencer with plenty of clocking options Audio input...

Page 8: ...ns adaptor to the rear Rotate the SEQ SYNC rotary switch in the lower left corner to LFO to start the sequencer Slowly increase the level on your mixer to a suitable level Note you will have to adjust...

Page 9: ...Manual Analogue Solutions Vco Voltage control oscillators 9 TOUR OF THE CONTROLS VCO VOLTAGE CONTROL OSCILLATORS The two VCOs are almost identical but VCO1 has a manual pulse width control and VCO2 h...

Page 10: ...MIDI PITCH switch and also the positions of the sequencer s VCO1 2 DESTINATION amount controls In normal use turn the sequencer DESTINATION amount controls to zero GLIDE This is a portamento function...

Page 11: ...modulated by the LFO Triangle wave when turned left or by Envelope1 when turned right Centre position is off no modulation VCO2 TUNE This tune control only affects VCO2 GLIDE This is a portamento fun...

Page 12: ...CO1 For an extreme sound modulate the pitch of VCO2 You may need to play around with the pitches of VCO1 and VCO2 to find a setting that works best PULSE WIDTH MODULATON This allows modulation of the...

Page 13: ...e audio is mixed with the mixer before being fed to the input of the filter Each control can choose between two signals Centre is zero volume As you gradually turn the control left or right you increa...

Page 14: ...audio from the VCOs This is normal Set it to Noise or put to the centre if the Sequencer signal is not to be used as an audio signal Clock the sequencer at audio frequencies then the sequencer output...

Page 15: ...l of VCO1 Square waveform VCO2 Left changes the level of VCO2 Sawtooth waveform RIght changes the level of VCO2 Square waveform VC LPF VOLTAGE CONTROLLED LOW PASS FILTER The Leipzig has a 24db octave...

Page 16: ...es pitch CV to the filter cutoff When it is turned up as you play higher up the keyboard the filter will open up This makes the sound get brighter as you play up the keyboard EG MODULATION This contro...

Page 17: ...LFO MODULATION This section selects and routes various modulation signals to the VCO and VCF circuits The three rotary switches select the modulation source for example LFO or EG The Level control se...

Page 18: ...UARE Ideal for special effects EG1 Pitch sweeps Extreme settings are good for percussion VCO2 SQUARE Extreme settings create Ring mod and metallic type sounds VCO2 LFO TRIANGLE Ideal for vibrato effec...

Page 19: ...controller controls pitch VCF LFO TRIANGLE Ideal for wah wah effects LFO SQUARE Ideal for special effects VCO1 Use with fill Resonance for metallic type sounds MIDI Control from auxiliary CV MIDI con...

Page 20: ...Typically used to change the volume or filter cutoff though they can also be used to modulate the VCO pulse widths or pitch Both envelopes are identical so only one will be described ATTACK This cont...

Page 21: ...level that the EG will hold its output at for as long as a key is held down RELEASE Once the key is released this sets the time take for the signal to fade to zero LED The LED gives a rough approxima...

Page 22: ...ulation signal typically an envelope There are four choices available on the rotary switch MODE EG1 EG2 Normal use to contour the volume GATE The VCA opens and closes with no gradual attack or decay m...

Page 23: ...CV2 this is a modulation CV It is controlled by either MIDI velocity or a MIDI Controller PROGRAM This button is used to set the MIDI channel and CV2 controller Works best if you plug a MIDI keyboard...

Page 24: ...nerator and then used as a new audio source that can be played and filtered Note it does not produce a MIDI output This is an anague synth after all Think of this sequencer more as a modulation source...

Page 25: ...I Sync is the WORST way to sync the sequencer to a MIDI sequencer Sync ing using MIDI KEY is by far more creative and flexible than using MIDI SYNC MIDI Clock When using this each time a MIDI note is...

Page 26: ...ry time it receives a MIDI note whose velocity value is over 80 accented To do this ensure that the toggle switch is down Note on Leipzig SK the the switch position ACC is in fact EXT2 So an external...

Page 27: ...can make them seem to play separate melodies or in combination with other settings create new and interesting sounds Set lowish filter CUTOFF and VCF EG MOD settings and full VCF Sequencer mod settin...

Page 28: ...FICATION Leipzig S Power Current consumption 1A Voltage 12V AC DC will not work Power plug 2 1mm Weight mass Approx 3Kg Size 100x222x483mm DxHxW Packaging weight and size LEDs 15 Push buttons 2 Toggle...

Page 29: ...gue Solutions Specification 29 3 x 6 35mm mono MIDI sockets 2 Power Sockets 1 Leipzig SK Voltage 230V 115V AC check back panel for correct voltage Power plug IEC socket Weight mass Approx 7 7Kg Size 5...

Page 30: ...es The Pitch Bend MIDI data is sent to the MIDI OUT socket and will also control the on board MIDI to CV converter to affect the pitch of both VCOs equally MOD WHEEL The mod wheel will send MIDI contr...

Page 31: ...gate signal is fed out here from the MIDI to CV converter HEADPHONE The signal is mono Level is controlled together with the main output socket level using the volume control on the front panel EXT1...

Page 32: ...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 CV Gate out Sockets CV Gate...

Page 33: ...es 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 opene...

Page 34: ...Leipzig S SK User Manual 34 Analogue Solutions...

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