RADICAL DELTA CEP A Скачать руководство пользователя страница 57 | Manualshive

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RADICAL DELTA CEP A Скачать руководство пользователя страница 57

13

Glossary

13.1

Filter (lowpass, bandpass, highpass)

You certainly know about filters from optics. If you bring a transparent, red disc into a ray of
light, only red light passes thru the optical filter. Sound filters are quite similar. While a red
filter  in  the  optics  only  passes  red  light,  a  lowpass  filter  in  audio  circuits  only  passes
frequencies  below  the  cutoff  frequency.  Highpass  filters  do  the  opposite.  They  only  pass
frequencies, that are higher than the cutoff frequency. Filters in synthesizer circuits usually
allow  for  adjusting  the  cutoff  frequency  in  realtime.  The  highest  audible  frequency  of  a
lowpass  filter  is  set  using  the  cutoff  knob.  If  you  set  the  cutoff  frequency  to  the  lowest
frequency,  no  signal  will  pass  through.  On  the  other  hand,  if  you  now  switch  to  highpass
filter  operation,  the  signal  comes  out  of  the  filter  almost  unprocessed.  Namely,  only
frequencies  higher  than  the  cutoff  frequency  are  output  at  the  high  pass.  Since  the  cutoff
knob  is  now  set  to  the  lowest  frequency,  the  harmonics  generated  by  the  oscillator  are
above  the  set  frequency.  Turning  the  cut-off  knob  clockwise  will  make  the  sound  thinner
and thinner as you cut off the fundamental and lower harmonics with the filter.

In the graph, you can look closely at the behavior of a low-pass filter. To the right of the filter
curve, no signal is allowed through because the filter has its stopband there. Adjusting the
resonance of a filter emphasizes the frequency range that lies around the cutoff frequency,
as shown the drawn peak. Resonance and cutoff frequency are filter parameters that can
be changed via envelopes, LFOs or other modulation signals in a synthesizer.

 

von

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63

Gain

Passband

Stopband

CUTOFF

RESONANCE

FREQUENCY

lowpass filter

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Содержание DELTA CEP A

Страница 1: ...Owner s Manual DELTA CEP A...

Страница 2: ...I Music Instrument Digital Interface 13 2 1 2 CV GATE 13 2 2 Audio connection and play 14 2 3 Troubleshooting 16 3 0 The sections of the DELTA CEP A in detail 18 3 1 LFO Section 18 3 2 Swarm Oscillato...

Страница 3: ...5 6 Note trigger and note priority settings 47 7 MIDI to CV Interface 48 7 1 MIDI clock synchronization 49 7 2 TEMPO button and tempo LED at MIDI sync mode 51 7 3 TEMPO button and tempo LED when runni...

Страница 4: ...ducts are constantly evolving Technical changes made to improve a product may be made at any time without notice Therefore technical data and the appearance of the device may differ from the informati...

Страница 5: ...A CEP A Type DELTA CEP A Eurorack DELTA CEP A desktop Serialnumber ____________ Productnumber RT 01 Chargenumber 1 2019 complies with the provisions of the Low Voltage Directive 2014 35 EU including a...

Страница 6: ...will not occur in all installations If this product is found to be the source of interference which can be determined by turning the unit OFF and ON please try to eliminate the problem by using one of...

Страница 7: ...y and charged in advance For legitimate warranty claims the product will be sent postage paid within Germany Outside of Germany the delivery is at the expense of the customer C 3 Transferability of th...

Страница 8: ...e manual that the housing manufacturer supplied with the device before putting it into operation The power cord or power supply cable should be routed so that it does not pose a stumbling hazard Alway...

Страница 9: ...n experience with the pre wired system you can break or add connections to enjoy all the freedom of a modular system Paraphonic Paraphonic synthesizers can be played polyphonically because their oscil...

Страница 10: ...rks if it is correctly aligned But even more important the sensitive pins of the pin header are protected with the help of the box against mechanical stress On crooked follows quickly off if you have...

Страница 11: ...hesizer from left to right Interpolator Sitting on the left side are the eight six LEDs six buttons and the large knob This section has several functions You can recall and save presets take snapshots...

Страница 12: ...A front panel you will notice different color schemes white characters on blue background white characters on black etc Labelling on the DELTA CEP A frontpanel Output jacks are marked with black char...

Страница 13: ...TEP this output is labeled Pitch In contrast to the CV voltages listed above the gate signal is usually a so called ramp voltage with a fixed voltage value Without gate signal we measure 0 Volt and wi...

Страница 14: ...personal sound is already in there because sounds are rarely played alone but have to fit in the context of other sounds Because of this you will inevitably have to learn to lend a hand if your sound...

Страница 15: ...igh mechanical load for the 3 5mm sockets of all modules At the bottom right of the front panel in the FX section you will find the exits to the outside world in the Eurorack version Did you connect t...

Страница 16: ...might help The instructions are divided into the individual sections So if you stumble over a parameter name in a section that you can not initially recall you will find the necessary explanations in...

Страница 17: ...SHIFT key are printed on the front panel on blue labels If you hold down the SHIFT key without turning a knob or pressing a button you may load the Utility menu Just look at the LED chain on the left...

Страница 18: ...d right the strength of the modulation is increased while the modulation voltage in the left value range is additionally inverted SPEED The speed control adjusts the speed of the LFO SHIFT SPEED If yo...

Страница 19: ...age controls the speed of the LFO SYNC Input A clock signal on this input allows the LFO to get synchronized to an external clock source In the case of an external clock input the Speed knob works as...

Страница 20: ...control you can continuously crossfade between di erent oscillator waveforms The basic waveforms are sine triangle sawtooth and square SHIFT TLM Use the SHIFT key to reach the TLM control with the WAV...

Страница 21: ...ddle position the modulation source will modulate the waveform morphing and values right from the center will modulate the TLM modulation described above If you want to use the LFO for TLM or waveform...

Страница 22: ...e available TIP Minor tone scales are displayed in blue while major scales are displayed in red The origin root of the tone scales can be shifted by any semitones To do this turn the MOD DEPTH knob of...

Страница 23: ...antages because a saturation level behaves very dynamically when the number of voices and thus the level at the entrance of the saturation level changes This can be used creatively to great effect If...

Страница 24: ...the level of an external signal or noise source When feeding in external signals make sure that the input is not overdriven The LED above the EXT IN input should not be solid red SHIFT GLIDE Use the...

Страница 25: ...ounds You can adjust the level with SHIFT the OSC level control Unlike the master volume knob in the VCA section this level setting is stored in the patch and in the snapshots Buttons and knobs of the...

Страница 26: ...ELTA CEP A Filtertype Description Digital 12 dB multimode filter SHIFT DIG12dB The digital 12 dB multimode filter has a lowpass LP a bandpass BP and a highpass HP function With the three buttons any c...

Страница 27: ...gher notes on the keyboard control the filter frequency The middle position is neutral Higher notes will open the filter more than lower notes at positive values EG DEPTH Here you can set how much and...

Страница 28: ...ode filter with SHIFT ANA12dB Buttons and knobs of the Filter section Knob Button Description Buttons and knobs of the Filter section Button In and output jacks of the Filter section Jack Input Output...

Страница 29: ...w controlled by a GATE signal The gate opens when a key is pressed and closes when the key is released Sometimes this type of control is too abrupt Therefore the DELTA CEP A allows to extend the attac...

Страница 30: ...desktop cabinet In and Output jacks of the ADSR Envelope section Jack Input Output Description GATE Input You can feed a gate signal into this input to trigger and hold the envelope ATTACK Input This...

Страница 31: ...lied to the MOD input a ects the volume EG GATE With the EG Gate button you can switch between three basic operating modes of the VCA 1 Envelope mode green LED The VCA is controlled by the ADSR envelo...

Страница 32: ...knob adjusts the Dry Wet ratio of the output signal SHIFT MOD RATE At the tape delay algorithm you have the possibility to filter the echo signal Hold down the SHIFT key and set the MOD RATE knob to t...

Страница 33: ...he Tempo Delay allows the modulation of the delay time with a built in LFO Hold down the SHIFT button and set the desired modulation speed with the MOD RATE knob SHIFT MOD DEPTH Bei gehaltener SHIFT T...

Страница 34: ...ob adjusts the Dry Wet ratio of the output signal SHIFT MOD RATE By pressing SHIFT MOD RATE you can control the speed of the phaser modulation SHIFT MOD DEPTH Knobs of the FX section after selecting t...

Страница 35: ...f you want the snapshot to be saved permanently even after switching the Delta off you must save a Patch chapter 4 2 4 2 Storing Patches sound programs When you save a patch sound program you store up...

Страница 36: ...witch the 5 memory banks The LEDs of the LFO Wave Selection will light up according the bank number 1 5 SNAP Tap the SNAP button to save the patch Browsing and Loading Patches 1 using the Big Knob But...

Страница 37: ...can even replace a drum computer with the DELTA CEP A All functions of the Snapshot Interpolator are in the Morph menu You can reach it by tapping the MORPH button But be careful if you are currently...

Страница 38: ...clock divider for this tempo Switching off the tempo clock Button Knob Button Description SHIFT TEMPO Hold down the SHIFT button and tap the TEMPO button If the tempo LED flashes yellow the MORH LFO i...

Страница 39: ...nob to select a value between 1 and 8 in the LED string Now the cruise control is running and you are listening to a sequence of your snapshots The higher the value the faster the sequence No note val...

Страница 40: ...running and stopped Selection of the second operating mode morphing snapshots Button Knob Button Description MORPH BIG KNOB While holding down the MORPH button select No 2 on the LED scale BIG KNOB I...

Страница 41: ...tap the ADSR GATE key Now the envelope is triggered at each snapshot change over You can press the key combination several times to select di erent gate times After four settings the gate trigger is...

Страница 42: ...the control can be done as sensitively as possible Selection of the fifth mode morphing snapshots via aftertouch Button Knob Button Description MORPH BIG KNOB While holding down the MORPH button sele...

Страница 43: ...ourney 8 snapshots will make sense 4 8 Muting of snapshots The DELTA CEP A Snapshot Interpolator basically does not care if it morphs from Snapshot 1 to Snapshot 8 through Snapshot 5 or from No 1 dire...

Страница 44: ...IG KNOB Choose a snapshot you would like to mute MUTE Use the MUTE button to confirm your selection A muted step lights red If you select the same snapshot again and tap with MUTE button the muting wi...

Страница 45: ...orithm Tape Delay Feedback 0 Delaytime 0 1 LFO LFO Depth 0 LFO Wave SINUS INIT SOUND Parameter Deleting of all snapshots Button Knob Button Description SHIFT First press the SHIFT button to switch to...

Страница 46: ...sferring of a whole bank of patches Button Knob Button Description PATCH If you have not accessed Patch Select mode please select it now by tapping the PATCH button PATCH BANK Select the bank of patch...

Страница 47: ...ding down a note and quickly tapping a note above it with a higher pitch the DELTA will play the two notes in rapid alternation even though you are tapping only the higher note This is especially usef...

Страница 48: ...d trigger modes Button Knob Button Description SHIFT Hold down the SHIFT button to enter the utility menu You must hold the button until all LEDs 1 8 are lit blue If you now release the SHIFT button y...

Страница 49: ...olt Octave ratio that matches the received MIDI note CV This CV voltage follows a MIDI controller which you can set with the LEARN button Hold down the LEARN button and send the desired controller fro...

Страница 50: ...d the button until all LEDs 1 8 are lit blue If you release the SHIFT button afterwards the utility menu will become active BIG KNOB Select the fourth submenu with the big knob LED 4 lights up green w...

Страница 51: ...button You will see that the blinking speed changes accordingly SHIFT TEMPO green If you press SHIFT TEMPO while the MIDI Clock is missing the internal clock runs and starts a sequencer that is connec...

Страница 52: ...a ects the LFO and the FX section So the tempo delay runs according to this clock and the modulation e ects chorus flanging and phaser are also aimed at this tempo TEMPO yellow Tap the TEMPO button to...

Страница 53: ...ion confirm the selection with the SNAP button The division factors result in the following note values 1 4 1 8 1 12 1 16 1 24 1 32 These are arranged as follows on the LEDs to the right of the button...

Страница 54: ...Big Knob LED 1 lights up red in this selection DENSITY With the Density control you can adjust the maximum brightness of the LEDs SHIFT Press the SHIFT button to exit the utility menu Einstellen der...

Страница 55: ...Swarm Oscillator should be installed in the same cabinet as close to the DELTA CEP A as possible If you want to make this connection you should definitely disconnect the power supply and unplug the po...

Страница 56: ...and chord presets detune FM modulation glide function and scale quantised CV input Mixer section Noise and external signal volume control and oscillator level with saturation Filter section There is a...

Страница 57: ...witch to highpass filter operation the signal comes out of the filter almost unprocessed Namely only frequencies higher than the cutoff frequency are output at the high pass Since the cutoff knob is n...

Страница 58: ...onnect the points of the measurement series in the graph Since no further measured values are to be found in their table between point A and B it is now necessary for their drawing skills to plot the...

Страница 59: ...interface MIDI has two major advantages over the much faster and more universal USB interface it can actively send data while a USB device must always wait until its data is polled by the host comput...

Страница 60: ...ter because it contains only the odd overtones If you need the Emerson Lake and Palmer Lucky MAN sound just pick up several Oscillator Clones set them to Rectangle and detune the Oscillator Clones ope...

Страница 61: ...pe settings of the decay phase and the sustain level no longer have any influence on the sound You can extend the envelope by extending the release phase However if the transient Attack time is set to...

Страница 62: ...Funky Bass Bass B 3 Deep Pressure Bass B 4 Basic Dry Bass B 5 Interval Bass Bass B 6 Dyna Bass Bass 8 velocity Snapshots B 7 Chorus Bass Bass Keyboard Velocity is assigned to the Cuto frequency B 8 Lo...

Страница 63: ...The modulation wheel morphs through 4 snapshots The Moskito sits between positions 5 and 6 LFO OUT CUTOFF IN D 8 SoloMorph Eight favourite Solo sounds E 1 Notensequenz Sequenz Seq Start STOP per SHIFT...

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