Make Noise Soundhack Spectraphon Bedienungsanleitung
Soundhack Spectraphon
2
Spectraphon
3 FCC
4 Limited Warranty
5 Installation
6 Introduction
8 A Technical Note on the Hardware
9 Panel Controls and Inputs/Outputs
14 What Are Spectra?
16 The Spectraphon's Outputs
18 Buttons and Display
22 Frequency and Partials Controls
24 Spectral Amplitude Modulation Mode
25 (SAM) Spectral Array Oscillation Mode (SAO)
26 Selecting Arrays
28 Creating Arrays
30 Modulation and Clocking
32 Tips and Tricks
34 Patch Corner
Table of Contents
3
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications.
makenoisemusic.com
Make Noise Co., 414 Haywood Road, Asheville, NC 28806
FCC
4
Limited Warranty
Make Noise warrants this product to be free of defects in materials or construction for a period of one year
from the date of purchase (proof of purchase/invoice required).
Malfunction resulting from wrong power supply voltages, backwards or reversed eurorack bus board cable
connection, abuse of the product, removing knobs, changing face plates, or any other causes determined by
Make Noise to be the fault of the user are not covered by this warranty, and normal service rates will apply.
During the warranty period, any defective products will be repaired or replaced, at the option of Make Noise,
on a return-to-Make Noise basis with the customer paying the transit cost to Make Noise.
Make Noise implies and accepts no responsibility for harm to person or apparatus caused through operation
of this product.
or any needs & comments.
http://www.makenoisemusic.com
Spectraphon Credits:
DSP Designer and Firmware Engineer: Tom Erbe
Hardware Engineer, Design Engineer: Tony Rolando
Lead Hardware Engineer: Jeff Snyder
Lead Beta Tester: Walker Farrell
Manual: Walker Farrell with illustrations by Lewis Dahm
The Make Noise Crew in West Asheville: Tony, Kelly, Bayley, Devin, Eric, Jake, Jon, Lee, Lewis, Mike,
Natasha, Peter, Ryan, Sam, & Walker
Special Thanks to the Beta Testers!
5
-12V
Electrocution hazard!
Always turn the Eurorack case o and unplug the power cord before plugging or unplugging any Eurorack
bus board connection cable. Do not touch any electrical terminals when attaching any Eurorack bus
board cable.
The Make Noise soundhack Spectraphon is an electronic music module requiring 230mA of +12VDC and
55mA of -12VDC regulated voltage and a properly formatted distribution receptacle to operate. It is
designed to be used within the Eurorack format modular synthesizer system.
Go to http://www.makenoisemusic.com/ for examples of Eurorack Systems and Cases.
To install, nd 34hp of space in your Eurorack synthesizer case, conrm proper installation of included
eurorack bus board connector cable on backside of module (see picture below), plug the bus board
connector cable into the Eurorack style bus board, minding the polarity so that the RED stripe on the cable is
oriented to the NEGATIVE 12 Volt line on both the module and the bus board. On the Make Noise 6U or 3U
Busboard, the NEGATIVE 12 Volt line is indicated by the white stripe.
Please refer to your case manufacturers’ specications for location of the Negative supply.
Installation
6
Introduction
The Make Noise/soundhack Spectraphon is a dual Spectral Oscillator. Coded by Tom Erbe of
soundhack, it uses real-time spectral analysis and resynthesis to create new sounds from those that
already exist. It is inspired by classic electronic musical instruments of the past, including spectral
processors, additive synthesis, vocoders, and “resonators.” Elements of its sonic palette are
inspired by the Buchla 296 and Touché, but it takes a physical form more resembling the
classic analog dual “complex” oscillator in the lineage of the Buchla 259 and the Make Noise DPO.
The Spectraphon is the first module to be built by Make Noise on our brand new digital hardware
platform. This hardware, engineered by Jeff Snyder and Tony Rolando, provides more i/o at higher
resolutions, and a lower noise floor than we have ever had access to in a digital module before . We have
taken advantage of this new hardware power to unleash Tom Erbe’s DSP code to a previously
unattainable degree. In short, it is the most sonically powerful digital module we have yet created.
The Spectraphon is laid out as two nearly identical sides, A and B, which are roughly mirrors of each
other. Each side operates independently as an Oscillator in one of two modes: Spectral
Amplitude Modulation (henceforth abbreviated as “SAM”) and Spectral Array Oscillation (henceforth
abbreviated as “SAO”). In any combination of these modes they can also interact via the internal FM Bus,
the Follow and Sync modes, and by patching them together.
In SAM, instead of oscillating at all times like an analog VCO, sound at the Spectraphon’s input is
used to modulate the amplitude of a set of harmonics of a fundamental frequency set by the Slide
control. The Focus controls further select the areas of harmonic emphasis, and the result, called a
spectrum, appears at the Odd and Even harmonic outputs. In SAM the Spectraphon can be sequenced
and frequency modulated like any VCO - and the Sine wave output is also always active. At any time the
current spectrum can be used to create an Array for later use in Oscillator mode.
In SAO, the Spectraphon operates even more like an analog VCO: it oscillates at all times, with the
spectrum at the Odd and Even harmonic outputs being drawn from stored collections of spectra called
Arrays. (Arrays are created from the Spectraphon’s activity while in SAM.) In SAO, the Spectraphon’s
Slide and Focus controls are used to select the currently active spectrum within the Array.
In either mode (SAM or SAO), the FM Bus will create high definition internal frequency modulation from
the opposing side of the Spectraphon. Unlike with analog VCOs, the core of the Spectraphon oscillator is
not affected by this FM of the harmonic outputs: the sine and Sub outputs will still output the original
core frequency even when the FM depth goes to its extremes. This also means that tuned FM can be
performed in both directions at once without causing cross-modulation or feedback.
7
Introduction (cont.)
Also in either mode, the Partials control works as a combined amplitude and timbre control for the Odd
and Even harmonic outputs. It increases the relative loudness of the harmonics of the current spectrum
as it increases, beginning with silence at counterclockwise, adding lower harmonics at low values,
then through middle and high harmonics, and generating all harmonics at their full amplitude
according to the current spectrum at maximum. The odd and even harmonics are increased alternately
up the control, which can be useful for animation when parallel processing these outputs or using
them in a stereo setup.
Each Side of the Spectraphon has, in addition to Odd and Even harmonic outputs, a Sine and a Sub/CV
output. The Sine wave output always oscillates at the current core frequency as set by Pitch, regardless
of mode, and regardless of the activity at the other outputs. By default, Sub/CV outputs an Envelope
Follower for the Input (in SAM) or a sub-octave waveform (in SAO).
The B side of the Spectraphon can also be set to Follow or Sync. Follow turns the B Pitch control into
a pitch offset that is added or subtracted from the A side’s current frequency. In practice, this lets Side A
control the Pitch of Side B, which is useful for dual oscillator patches, tuned FM etc. Sync maintains this
Following behavior, and additionally hard syncs Side B to the current frequency of Side A, turning Side
B’s pitch controls into combined pitch/timbre control.
The Pitch, FM, Partials, and Follow/Sync operations, as well as the Sine wave outputs, all work
identically in SAM and SAO. This means that in many respects the Spectraphon can be used as you
would use a dual “complex” oscillator even when the two sides are not in the same mode. It could be
thought of as a complex oscillator that is fed or “driven” by external sound.
The Spectraphon is a digital/analog musical instrument that is not suitable for laboratory use.
8
A Technical Note on the Hardware
The new Make Noise DSP hardware features 2 Inputs and 8 outputs of low noise, high dynamic
range, fully DC Coupled Digital Signal Processing power. We used a 5 volt CODEC which helped us
achieve excellent SNR and yields an impressive input dynamic range that is around 12 to 30 dB
better than possible with low-power 3.3 volt CODECs commonly used in synthesizer modules. Best of
all, this new DSP platform is DC coupled, resulting in nearly flat frequency response down to
0Hz, giving the possibility for a huge, clean sound. Having 8 outputs instead of the more
common 2 IN/ 2 OUT configuration allows us to approach simultaneous outputs previously seen only
in our analog modules such as QPAS, XPO or DPO. The signal processing is achieved with modern ARM
Cortex-H7 MCU running at 480MHz. Plenty of SDRAM and FLASH memory means big buffers and
larger stored tables, and that ultimately means code can run faster. Firmware updates are handled
using the onboard micro SD Card interface so updating firmware is as easy as dragging the new
firmware file onto the Micro SD Card.
Specs:
ADC Dynamic Range: 114dB
DAC Dynamic Range: 110dB
DAC THD + Noise: -110dB
Up to 24bit 192khz bit depth and sample rate
ARM Cortex-H7 MCU, running at 480MHz
32MB of SDRAM
2MB FLASH
Panel ControlsBOE*OQVUT0VUQVUT
Spectraphon Panel ControlsBOE*OQVUT0VUQVUs
Side A and B
1. Frequency Panel Control. Sets the Frequency of the Side. Summed with Fine-Tune and 1v/oct.
2. Fine Tune. Fine Tune of the Side's Frequency.
3. Slide. Modulates the current Spectrum, depending on mode.
4. Slide Attenuverter. Bipolar input attenuverter for Slide.
5. Slide CV Input. CV Input for Slide.
6. 1v/oct. Sets core Frequence of the Side via external control, tracks one volt per octave.
7. Shift Button. Press to manually Clock the Spectraphon. Hold to access Shift-functions on other
buttons (Array Creation, CV Type, Shift Array)
8. Clock Input. Clocks the Spectraphon. Steps through the Spectra of the current Array (SAO), writes
Spectrum during Array Creation (SAM), clock input for CV outputs when applicable.
9
10
Panel ControlsBOE*OQVUT0VUQVUT (cont.)
Spectraphon Panel ControlsBOE*OQVUT0VUQVUs
Side A and B (cont.)
1. Partials Panel Control. Sets number of Partials audible at Odd/Even Harmonic Outputs.
2. Partials Attenuverter. Bipolar input attenuverter for Partials.
3. Partials CV Input. CV Input for Partials.
4. Focus Panel Control. Modulates the current Spectrum, depending on mode.
5. Focus Attenuverter. Bipolar input attenuverter for Focus.
6. Focus CV Input. CV Input for Focus.
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