Endorphines GHOST 16hp User manual
FIRMWARE V.1.00 RC
WARRANTY
1-year warranty is guaranteed from the product's purchase date in case of any
manufacturing errors or other functional deficiencies during runtime.
The warranty does not apply in case of:
damage caused by misuse
mechanical damage arising from careless treatment (dropping, vigorous
shaking, mishandling, etc.)
damage caused by liquids or powders penetrating the device
heat damage caused by overexposure to sunlight or heating
electric damage caused by improper connecting
The warranty covers replacement or repair, as decided by us. Please contact us via
email for a return authorization before sending anything. Shipping costs of sending
a module back for servicing is paid by the customer. Device complies with all EU
regulations concerning RoHS lead-free manufacturing and WEEE disposal.
VISIT US:
https://endorphin.es
https://youtube.com/user/TheEndorphines
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https://twitter.com/endorphin_es
https://www.instagram.com/endorphin.es/
https://www.modulargrid.net/e/modules/browser/vendor:167
For technical requests: [email protected]
For dealer / marketing inquiries: [email protected]
ENDORPHIN.ES is a registered trademark. It is doing business as FURTH
BARCELONA, S. L. (EU VAT ID: ES B66836487).
16hp digital audio processing unit without fixed structure:
intuitively create astonishing and ephemeral timbres: from
atmospheric rumbles to heavy or distorted textures
creative stereo effect processor with delay, reverb, filter
and distortion with quickly explorable routing chain with a
single button press
matrix of micro-modulations creates infinite, alive and
unexpected interactions of controls
lush hall and whooshing reverse reverbs with audio freeze
and pre-delay
sidechain audio ducking with trigger input and one knob
single band compressor
new generation ARM Cortex-M7 processor with 96 kHz 32
bit internal processing
zero-delay feedback state-variable filters: bipolar low-pass
/ high-pass, band-pass and alternative comb filter with
resonator
tap delay with external clock and clock divider, 1v/oct time
control for Karplus-Strong, various taps settings with up to 2,5
sec. maximum delay time
8x oversampled distortion algorithm
pre- and post- VCA controls. Tone and Volume controls
with extra gain/drive reserve
INTRO
In collaboration with Andrew Huang, based on his modern music production
techniques we developed a creative audio processor with multiple blocks that can
be moved around in order to achieve different flavors for sound design.
GHOST is a fully digital stereo processing unit without a fixed structure in 16hp:
intuitively create astonishing and ephemeral timbres, from atmospheric rumbles to
heavily distorted textures.
The extremely flexible audio chain consists of a delay, reverb, multimode filter and
distortion, where the order of these audio processing blocks can be easily switched
with a single press of a button.
The ability of the delay to self-oscillate at audio rate frequencies, track 1v/oct
signals, be processed by onboard VCAs and an envelope make GHOST a complete
Karplus-Strong Synthesis voice in itself.
CONNECTING THE POWER
Connect the module directly to the power bus-board with supplied 10-16 ribbon
cable like any other eurorack module. Pair of RED/BROWN pins on the multicolor
ribbon cable corresponds to negative -12V.
TECHNICAL SPECIFICATIONS
Width: 16 hp, depth: 25 cm / 1” with inserted ribbon cable
Current draw: +12V: 130 mA, -12V: 35 mA
Audio I/O: 96kHz 16 bit with 32 bit floating point internal processing
CV capture: 16 bit, 2 kHz
CV range: 0…+5V typically with up to 0…+10V. -5…+5V for 1v/oct and VCF.
Audio input range: typical eurorack standard +/-5V (10Vpp) with up to 18Vpp
when saturation starts (at around +21 dBu). Audio output: typical +/-5V eurorack
standard
INTERFACE
FRONT PANEL CONTROLS
1.
IN 1, IN 2 JACKS: stereo audio inputs, INPUT 1 (typically left) – is
normalled, i.e. pre-routed
to INPUT 2 (right) when no audio cable is present
on INPUT 2. Typical input audio level: eurorack modular +/-5V with maximum
up to +/-9V when saturation starts with higher audio amplitude.
2.
PRE-VCA CV INPUT JACK: external 0…+5V CV input that controls
the amplitude of the incoming stereo signal. Normalled to +5V when no patch
cable is inserted.
3.
TONE/GAIN* KNOB: multi-function knob. By default it acts as a
6db/oct TILT EQ for low and high frequencies (CCW and CW respectively)
with no effect when the knob is at 12 o’clock. Secondary function is a gain
boost for incoming audio, activated by turning while holding the ROUTING
button. Fully CCW the signal is at its original level - turn CW to boost.
4.
DISTORTION KNOB: manual control over the distortion level. Is
summed with an external CV applied to the DIST. CV jack.
5.
DISTORTION CV JACK: external 0…+5V control over the distortion
level.
6.
CLIP LED: lights up when clipping occurs at the distortion stage.
7.
FREQUENCY KNOB: manual control over the FILTER CUTOFF.
8.
VCF CV INPUT JACK: -5V…+5V CV input for the FILTER CUTOFF.
The polarizer CUTOFF CV knob defines its amount, mixed with the setting of
the FREQUENCY knob.
9.
CUTOFF CV KNOB: polarizer / attenuverter for incoming CV to the
FILTER CUTOFF.
10.
DELAY DRY/WET CV JACK: 0…+5V external CV input for
the DRY/WET mix of the delay effect. Normalled to +5V when no patch cable
inserted.
11.
DELAY KNOB: manual control of the DRY/WET MIX OF THE
DELAY effect, acts as attenuator for DRY/WET CV jack.
12.
REPEATS/TONE* KNOB: manual control over REPEATS or
FEEDBACK level of the delay. Turn it fully CW for self-oscillation. Secondary
/TONE* function (holding ROUTING while turning REPEATS/TONE*) adjusts
the LOW-PASS FILTER after the WET output of the delay chain. Is summed
with an external CV applied to the REPEATS CV jack.
13.
REPEATS CV JACK: 0…+5V external CV input for the
feedback control of the delay effect.
14.
DELAY TIME/DIV KNOB: manual control of the delay speed,
from short audio rate repeats CCW and longer taps CW. When an external
clock is present at the CLOCK IN jack, the knob acts as a divider / multiplier
for this clock with the divisors written around the knob on the panel.
15.
TIME CV INPUT JACK: -5…+5V external CV control for the
speed of the delay’s repetitions, follows 1v/oct tracking. Is summed with the
TIME/DIV knob values when no external CLOCK IN applied. When the delay
is synchronized to external CLOCK IN, that CV sets the clock divider also
summed with the value of TIME/DIV knob.
16.
ROUTING /* BUTTON: routing chain switching as well as
multifunction shift button. Short presses will cycle through three different
orders of audio effects (see FX CHAIN STRUCTURE). Acts as a ‘shift’ button
when held down while using other controls (shift functions are labeled with /*
on the panel).
17.
TAP/TAPS* BUTTON: acts as a tap tempo button for the delay
speed. When internal clock is enabled (no patch cable connected) this button
blinks fully lit, shown by the symbol under it: . When external clock is
patched, the button blinks semi-lit shown by the symbol under it: .
Secondary function (ROUTING + TAPS) changes the stereo behavior of the
taps produced by the delay. Available delay tap configurations are:
LRLR: left and right summed, taps 1 and 3 panned left, taps 2 and 4 panned
right.
LRRL: left and right summed, taps 1 and 4 panned left, taps 2 and 3 panned
right.
STEREO: left and right inputs tap independently in their corresponding left
and right outputs. In this mode the total delay time is halved.
18.
CLOCK IN JACK: 0…+5V external input for the clock that sets
the TEMPO of the delay. External clock sets the delay time in sixteenth
notes. Module switches to external clock automatically when a patch cable is
inserted in the CLOCK IN jack: TAP button blinks semi-lit.
19.
REVERB DRY/WET CV JACK: 0…+5V external CV control
over the DRY/WET MIX OF THE REVERB. Normalled to +5V when no patch
cable is inserted.
20.
REVERB KNOB: manual control of the REVERB DRY/WET mix
level, acts as attenuator for DRY/WET CV jack.
21.
TAIL/PREDELAY* KNOB: primary function controls the decay of
the REVERB’s TAIL, Secondary function in combination with ROUTING /*
button controls the AMOUNT OF PRE-DELAY for the reverb. Is summed with
an external CV applied to the TAIL CV input jack.
22.
TAIL CV INPUT JACK: 0…+5V external CV input for the
DECAY of the reverb.
23.
HOLD/REVERSE* BUTTON: primary function holds or freezes
the reverb, allowing you to ‘hold’ a part of audio until you press this button
again. When hold is enabled, this button is fully lit, shown by the symbol
under it: . Secondary function in combination with ROUTING /* button
switches the algorithm to REVERSE REVERB. When reversed reverb is
activated, the button is semi-lit, shown by the symbol under it:
When REVERSE REVERB is activated, a single HOLD button press along
with FREEZE trigger input activates and deactivates delay freeze
(recirculating delay buffer audio).
24.
FREEZE JACK: 0…+5V external trigger input to enable the
HOLD of the reverb. Has a latch action: each consequent trigger either
enables or disables the freeze.
25.
BPF/COMB* BUTTON: switches the filter type from default
STATE-VARIABLE FILTER LP/HP to BAND-PASS filter and back. When
band-pass filter is enabled, this button is fully lit shown by the symbol under
it: . Secondary function switches to COMB FILTER with resonator by using
the ROUTING + BPF/COMB* button combo. When the COMB FILTER is
activated, the button is semi-lit, shown by the symbol under it: . A second
press on the button switches back to the LP/HP filter (button unlit).
26.
RESONANCE KNOB: manual control over the RESONANCE
OF THE FILTER; is summed with the external CV applied to the
RESONANCE CV input jack. When the BAND-PASS filter is selected, this
knob defines the width of the band. In COMB FILTER mode this knob is
bipolar and defines the feedback adding negative (to CCW) and positive (CW)
combs and at maximum CW/CCW values enables the resonator.
27.
RESONANCE CV INPUT JACK: 0…+5V external CV
control for the RESONANCE of the filter.
28.
/ENV DEPTH* LED: Brightness shows the internally generated
envelope.. When turned while pressing the ROUTING /* button, this LED
shows the amount of the envelope applied to the internal sidechain audio
ducking effect.
29.
TRIGGER INPUT JACK: trigger input for the onboard
sidechain envelope.
30.
SIDECHAIN/ENV DEPTH* KNOB: Sets the decay of the
onboard envelope from zero (no envelope) to approx. 5 seconds. When
turned while pressing the ROUTING /* button, this knob adjusts the depth of
the envelope to the internal sidechain audio ducking effect.
31.
ENVELOPE OUTPUT JACK: 0…+5V envelope output
triggered from TRIG IN jack. The envelope has fixed 1 msec attack and a
natural-sounding exponential curve. While the internal envelope for
sidechaining is negative (to duck the audio) this output provides a positive
version of the envelope to use elsewhere in your system or modulating
module’s parameters.
32.
COMPRESSOR KNOB: manual control over the amount of
compression applied after the effects processing chain, is summed with an
external CV applied to the COMPRESSOR CV IN jack.
33.
COMPRESSOR CV IN JACK: 0…+5V external CV input for
the compressor amount.
34.
VOLUME/DRIVE KNOB: controls the final output volume. Acts
as an attenuator for the POST VCA CV jack. When the knob passes after 15
o’clock it adds extra DRIVE saturation to the output signal while trying to
maintain its amplitude.
35.
POST-VCA CV INPUT JACK: 0…+5V external CV input for
the final volume level. Normalled to +5V when no patch cable is inserted.
36.
OUT 1, OUT 2 JACKS: final stereo audio outputs. OUTPUT 1
is typically left and OUTPUT 2 is typically right. OUTPUTS 1/2 can drive
headphones or be used as separate mono L/R outputs connected with mono
cables. When each jack is used with stereo TRS cables, these outputs can
be used in PSEUDO-BALANCED CONNECTION for example to your audio
interface directly. Pseudo-balanced connection ensures less noise hum on
the long cables but cuts the audio signal amplitude by half – to approximate
pro-line level +/-2.5V. Both audio inputs and outputs support airline audio
jack adapter (sold separately) to connect a 3.5mm TRS stereo (AUX) cable
directly.
TONE SHAPING
TONE knob enables light tone shaping after initial pre-VCA with a light TILT EQ
leaving more low frequencies at knob’s full CCW position, and leaving more high
frequencies at knob’s full CW position. After that stage, the signal is passed to the
main processing chain. By pressing and holding the ROUTING button, TONE/GAIN*
knob acts as a gain booster for the external audio signal from 100% at full CCW to
boosted at full CW.
REMINDER: when digital gain is increased past 100% it brings digital noise, use
at your own discretion.
DISTORTED REALITY
The power of the GHOST lies in its complex stereo audio effect chain with 96kHz,
32-bit internal audio processing, consisting of 2 VCAs (pre and post), 3 distortion
stages, a multimode filter, delay, reverb, compressor, and sidechain ducking
envelope. The order of the three main processing blocks - DELAY/REVERB, VCF,
and DISTORTION - can be changed by pressing the ROUTING button, letting you
achieve many different flavors of sound without having to repatch. The settings of
the GAIN, DRIVE and COMPRESSOR in the audio chain are adjusted manually for
optimal control over the dynamics.
There are three possible orders for the DELAY/REVERB (FX), DISTORTION and VCF
blocks:
FX DISTORTION VCF
DISTORTION VCF FX
VCF FX DISTORTION
The selected order is shown by the brightness of the ROUTING button, and written
as a hint on the faceplate:
when ROUTING button LED is off – first chain is selected
when ROUTING button is semi lit –
second chain is selected
when ROUTING button is fully lit – third chain is selected
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