NIVIEM KLANG 8008

User Manual ยท Version 1.0

Introduction

NIVIEM KLANG 8008 is a detailed digital emulation of the legendary Bode Sound Co. Model 8008 Barberpole-Phaser, designed by Harald Bode in the early 1980s. The Model 8008 created the auditory illusion of infinitely rising or falling spectral notches - the audio equivalent of the visual barbershop pole illusion.

What Makes This Plugin Special

  • Authentic SSB Architecture: True Single-Sideband frequency shifting using a 12-pole Dome Filter (Hilbert transformer), faithfully recreating the original hardware's signal path
  • 6 Operating Modes: UP & DOWN, UP, DOWN, FREEZE, FLIP, and ROT - covering both the original Bode modes and modern enhancements
  • Variable Peak Count: 9 discrete positions (3, 4, 5, 6, 7, 8, 9, 12, 15) matching the original hardware's rotary switch
  • 4x Oversampled Tube Drive: 12AX7 tube saturation stage with anti-aliased oversampling for harmonic richness without aliasing artifacts
  • Output Transformer Coloration: UTC A-24 style iron-core transformer model with frequency-dependent saturation and hysteresis
  • DAW Tempo Sync: Lock Sweep Rate, Flip Rate, and OSC 2T to your DAW's tempo with 15 note divisions including dotted and triplet values
  • ROT Mode Enhancements: RND chaos toggle, INERTIA Leslie-style ramp, ROVER rotating speaker post-processing with 2-mic stereo
  • Stereo Width Control: Independent SSB oscillator frequency detune between left and right channels for true spectral stereo widening
  • Phase Correlation Meter: Real-time stereo phase monitoring with spring-physics animated needle
  • 46 Factory Presets: Professional starting points across 8 categories from subtle mix enhancement to extreme sound design
  • Nivipedia: Built-in encyclopedia with 32 educational entries about the technology and history
  • Zero-Compromise DSP: 32-bit float processing, per-sample parameter smoothing, NaN/Inf protection, and full real-time safety

Who Is This Plugin For?

The KLANG 8008 is at home in any genre where movement, texture, and spectral depth matter. From psychedelic rock to ambient electronic, from film scoring to mix enhancement - the barberpole phaser is a tool that rewards experimentation across all styles of music.

ApplicationWhy KLANG 8008
Rock & PsychedelicRich phasing textures for guitar, keyboards, and full mixes - from subtle to wild
Progressive & Art RockInfinite sweeps and complex modulation for evolving, cinematic arrangements
Electronic & AmbientEndless risers, frozen comb filters, and evolving textures no cyclic phaser can do
Funk & SoulClassic rotary and phaser sounds with ROT mode and ROVER Leslie emulation
Sound DesignFreeze mode, high feedback, and 15-peak density for otherworldly timbres
Film & Game ScoringInfinite risers and fallers for tension, transitions, and atmospheric underscore
Mix EnhancementSubtle settings add dimension and stereo depth without obvious phasing artifacts
Guitar ProcessingROT mode with ROVER and 2MIC creates authentic rotating speaker effects
Keyboard & OrganLeslie emulation with INERTIA speed ramping and ROVER for B3-style spatial movement
Experimental & NoiseMaximum drive, feedback, and modulation for radical sonic exploration

The Original: Bode Sound Co. Model 8008

Harald Bode (1909-1987)

Harald Bode was a pioneer of electronic music technology whose innovations span five decades. Born in Hamburg, Germany, Bode developed some of the most influential electronic instruments of the 20th century.

Key Innovations

YearInnovation
1937Warbo Formant Organ - one of the earliest electronic keyboard instruments
1947Melochord - a dual-voice electronic instrument used at the WDR Studio for Electronic Music in Cologne
1960sBode Ring Modulator - pioneered the application of ring modulation in electronic music
1962Vocoder designs (ZKM archive documentation)
1963"Rot Sound Device" - rotating disc with LDR-based sound programming
1966Dome Filter circuit (March 6, 1966, Sheet 8) - the Hilbert transformer at the heart of the frequency shifter
1969Synthesizer layout featuring dedicated FREQUENCY SHIFTER module
1972Bode Frequency Shifter (Model 735/740)
1981Model 8008 Barberpole-Phaser (front panel design dated February 20, 1981)

The Model 8008

The Barberpole-Phaser was produced by Bode Sound Company at 1344 Abington Place, North Tonawanda, New York. It combined two of Bode's most significant innovations - the phaser allpass chain and the frequency shifter - into a single instrument.

The front panel (documented in the ZKM archive, drawing ZKM000249690) featured:

  • NO. OF PEAKS rotary with 9 positions
  • PHASING section with LO/HI range switch and OSC-DEPTH control
  • MODE SWITCHING with 6 illuminated push-buttons
  • MOD. section with FLIP RATE, OSC 2T, FEED BACK, and DRIFT RATE
  • MIX section with dual mix controls and HI/LO level switch

The name "barberpole" comes from the visual illusion of a rotating barber's pole where stripes appear to spiral endlessly upward despite being a finite cylinder. Bode achieved the audio equivalent by using Single-Sideband (SSB) modulation to shift the entire frequency spectrum in one direction, creating comb filter notches that appear to rise or fall continuously.

Original Hardware Specifications

ComponentValue
ManufacturerBode Sound Company, North Tonawanda, NY
DesignerHarald Bode
Year1981
Hilbert TransformerDome Filter (12-pole allpass network)
Peak Selector9-position rotary (3, 4, 5, 6, 7, 8, 9, 12, 15)
Operating Modes6 illuminated push-buttons
OscillatorsSweep + OSC 2T (triangle) + Drift
Mix ControlsDual (Mix 1 + Mix 2) with HI/LO level switch
PatentUS 4,399,326 (expired, public domain)
ArchiveZKM Karlsruhe, drawing ZKM000249690

Notable Users

Harald Bode's frequency shifters and the techniques behind the barberpole phaser have been embraced by artists across every genre - from electronic pioneers to rock legends:

Frequency Shifting & Barberpole Effects

  • Karlheinz Stockhausen - Used Bode's ring modulators and frequency shifters at the WDR Studio for Electronic Music in Cologne, pioneering the use of spectral shifting in compositions like Mixtur (1964) and Mantra (1970)
  • Kraftwerk - The Bode frequency shifter was integral to the sonic palette of albums like Autobahn (1974) and Radio-Activity (1975), creating the group's signature machine-like textures
  • Jean-Michel Jarre - Employed Bode frequency shifters extensively during the Oxygene (1976) and Equinoxe (1978) sessions for sweeping, otherworldly textures
  • Tangerine Dream (Edgar Froese) - A cornerstone of the Berlin school sound, Bode's frequency shifting appears throughout Phaedra (1974) and Rubycon (1975)
  • Klaus Schulze - Fellow Berlin school pioneer, used frequency shifting for vast, evolving soundscapes on Timewind (1975) and Moondawn (1976)
  • Brian Eno - Explored frequency shifting as a texture tool in ambient works, from Discreet Music (1975) through the Ambient series
  • Laurie Spiegel - Early electronic composer who used Bode's equipment at Bell Labs for pieces like The Expanding Universe (1980)

Phaser & Rotary Effects (Related to ROT, FLIP, and Traditional Modes)

  • Pink Floyd (David Gilmour) - Iconic phaser textures throughout The Dark Side of the Moon (1973), Wish You Were Here (1975), and Animals (1977)
  • Led Zeppelin (Jimmy Page, John Paul Jones) - The ethereal phased keyboards on "No Quarter" and "Kashmir"
  • Eddie Van Halen - The MXR Phase 90 on "Eruption" and "Ain't Talkin' 'bout Love" defined an era of rock guitar
  • The Isley Brothers (Ernie Isley) - The iconic phased wah-guitar on "That Lady" (1973)
  • Jimi Hendrix - Uni-Vibe rotary effects on "Machine Gun" and Band of Gypsys (1970)
  • Robin Trower - Deep, swirling phaser tones inspired by Hendrix's Uni-Vibe work
  • Billy Corgan (The Smashing Pumpkins) - Layered phaser textures on Siamese Dream (1993)
  • Radiohead - Phased and frequency-shifted textures across OK Computer (1997) and Kid A (2000)
  • Tame Impala (Kevin Parker) - Modern psychedelic phaser use on Lonerism (2012) and Currents (2015)
  • King Crimson (Robert Fripp, Adrian Belew) - Experimental guitar processing and Frippertronics with phase and frequency shifting

Organ & Rotary Speaker

  • Jon Lord (Deep Purple) - Hammond B3 through Leslie cabinets, the definitive rock organ sound
  • Keith Emerson (ELP) - Modular synths and Hammond with rotating speaker effects
  • Booker T. Jones - Classic Memphis soul organ through Leslie on "Green Onions" (1962)
  • Steve Winwood - Hammond organ with Leslie on Spencer Davis Group and Traffic recordings
  • Joey DeFrancesco - Jazz organ through Leslie, carrying the tradition forward

Authenticity & Emulation Approach

Our Methodology

The NIVIEM KLANG 8008 was developed using rigorous methodology:

  1. Primary Source Analysis: ZKM (Center for Art and Media Karlsruhe) archive documentation of Bode's original schematics, front panel layouts, and circuit designs
  2. Patent Study: US Patent 4,399,326 for the barberpole phasing signal flow
  3. Circuit-Level Accuracy: Component values and topologies from Bode's 1966 Dome Filter schematic (Sheet 8)
  4. Historical Research: Bode's published work including "History of Electronic Sound Modification" (J. Audio Eng. Soc., vol. 32, no. 10, 1984)
  5. Behavioral Verification: Each DSP block verified against the original signal path description

Key DSP Implementations

ComponentImplementation
Dome Filter12-pole Hilbert transformer (two parallel chains of 6 first-order allpass stages each) with interleaved break frequencies, < 2 degrees from ideal 90-degree quadrature across 20 Hz - 20 kHz
Phaser Allpass ChainVariable-stage allpass network matching patent element 312, with per-sample coefficient smoothing
SSB Frequency ShifterQuadrature modulation: Icos(wt) +/- Qsin(wt), using coupled-form oscillator (4 mul + 2 add per sample)
Tube Drive12AX7 asymmetric waveshaping with 4x oversampled processing for alias-free harmonic generation
Output TransformerUTC A-24 model with iron-core LF saturation, leakage inductance HF rolloff, and hysteresis intermodulation

What We Added Beyond the Original

While maintaining absolute fidelity to Bode's signal path, NIVIEM KLANG 8008 includes modern enhancements:

  • DRIVE: 4x oversampled 12AX7 tube saturation before the allpass chain
  • Stereo Width: Frequency detune between left and right SSB oscillators for true spectral stereo imaging
  • Feedback Tilt: Variable low-pass filter in the feedback path (-100 dark to +100 bright)
  • ROT Mode Features: RND, INERTIA, and ROVER for rotating speaker emulation
  • DAW Tempo Sync: Lock all three oscillators to the host DAW's tempo
  • Phase Correlation Meter: Real-time stereo phase monitoring

Installation

System Requirements

PlatformRequirements
macOS11.0 (Big Sur) or later, Intel or Apple Silicon
WindowsWindows 10/11 (64-bit), SSE2-compatible CPU
  • Formats: Audio Unit (AU - macOS only), VST3 (macOS & Windows)
  • DAW: Logic Pro, GarageBand, Ableton Live, Cubase, Studio One, Reaper, Bitwig, or any AU/VST3 host
  • RAM: 4 GB minimum, 8 GB recommended
  • Disk Space: ~50 MB

macOS Installation

  1. Download the NIVIEM KLANG 8008 installer
  2. Run the installer and follow on-screen instructions
  3. The plugin will be installed to:
    • AU: ~/Library/Audio/Plug-Ins/Components/NIVIEM KLANG 8008.component
    • VST3: ~/Library/Audio/Plug-Ins/VST3/NIVIEM KLANG 8008.vst3
  4. Restart your DAW
  5. Scan for new plugins if required

Manual Installation:

  1. Copy NIVIEM KLANG 8008.component to ~/Library/Audio/Plug-Ins/Components/
  2. Copy NIVIEM KLANG 8008.vst3 to ~/Library/Audio/Plug-Ins/VST3/
  3. Restart your DAW

Gatekeeper Note: The plugin is code-signed and notarized by Apple. If macOS still blocks the plugin, go to System Settings - Privacy & Security and click "Open Anyway."

Windows Installation

  1. Download the NIVIEM KLANG 8008 installer (.exe)
  2. Run the installer as Administrator
  3. The plugin will be installed to:
    • VST3: C:\Program Files\Common Files\VST3\NIVIEM KLANG 8008.vst3
  4. Restart your DAW
  5. Scan for new plugins if required

WebView2 Note: If you see a message about WebView2, download the Microsoft WebView2 Runtime from: https://developer.microsoft.com/en-us/microsoft-edge/webview2/

Getting Started

Quick Start (2 Minutes)

  1. Insert NIVIEM KLANG 8008 on a stereo track (guitar, synth pad, or full mix)
  2. The plugin loads with the Default preset - Barberpole UP mode, 6 peaks, moderate sweep
  3. Press play and listen to the infinite rising sweep
  4. Try these controls first:
    • SWEEP RATE: Turn down for a slower, more hypnotic sweep
    • PEAKS: Click different numbers to hear how peak count changes the density
    • MODE buttons: Try each mode to hear the different movement patterns
    • FEEDBACK: Turn up gradually to intensify the resonances
    • MIX 1: Blend the phased signal with the dry input

Signal Flow

                            +---------------+
                            |  Sweep LFO    |
                            | + OSC 2T      |
                            +-------+-------+
                                    |
                                    v
+---------+   +---------+   +-----------+   +---------+   +----------+
|         |   |  DRIVE  |   |  Allpass   |   |   SSB   |   |  Output  |
IN -|  Level  |-->| 12AX7   |-->|  Chain    |-->| Shifter |-->|  Stage   |--> OUT
|         |   | 4x OS   |   | (3-15 pk) |   |  Dome   |   |  XFMR    |
+---------+   +---------+   +-----+-----+   +---------+   +----------+
                                  |
                         +--------+--------+
                         |  FEEDBACK PATH  |
                         |  LP + tanh sat  |
                         +-----------------+

First Preset Exploration

Load these presets to hear the range of the plugin:

PresetCategoryWhat You'll Hear
Classic RiseClassicThe quintessential barberpole effect - infinite upward sweep
Slow RotorRotaryClassic Leslie rotating speaker emulation
Freeze FrameCreativeStatic comb filter with subtle drift modulation
Barberpole IllusionExtremeMaximum 15-peak Shepard tone effect
Silk ThreadSubtleBarely-there spatial enhancement for mixing

User Interface Overview

The KLANG 8008 interface is designed to resemble a premium hardware phaser unit with a brushed-metal faceplate, engraved labels, and illuminated mode buttons.

Layout

+------------------------------------------------------------------+
|  NIVIEM   BARBERPOLE PHASER   [NIVI] [Preset v] [<>] [SAVE] [A/B] [POWER] |
+------------------------------------------------------------------+
|                                                                    |
|  [LEVEL] [DRIVE]  |  [NO.OF PEAKS]  |  [SWP RATE] [DEPTH] [HI/LO] |
|   SIGNAL IN       |   3 4 5 6 7     |   PHASING                    |
|                    |   8 9 12 15     |                              |
|                                                                    |
|  |  [MODE: UP&DOWN | UP | DOWN | FREEZE | FLIP | ROT]  |          |
|                                                                    |
|  [FLIP RATE] [OSC 2T] [2T AMT]  |  [FB] [FB TILT]  |  [DRIFT]    |
|   MOD.                           |   FEED BACK       |             |
|                                                                    |
|  [MIX 1] [HI/LO] [MIX 2]  |  [OUTPUT] [WIDTH]  |                 |
|   MIX                       |   OUTPUT            |                |
|                                                                    |
+------------------------------------------------------------------+
|  [SWP: sync/div] [FLP: sync/div] [2T: sync/div]                  |
|  [RND] [INERTIA: Off/Rot/Glob] [ROVER: Off/Sub/Full] [2MIC] [SHAPE] |
+------------------------------------------------------------------+
|  [IN meter]  |||||||||||||||||||||||||||||||||||  [OUT meter]  [CLIP] |
|                    [Phase Correlation]                               |
+------------------------------------------------------------------+

Header Bar

ElementFunction
NIVIEMBrand name
BARBERPOLE PHASERProduct type
NIVIOpens Nivipedia (built-in encyclopedia)
Preset dropdownClick to open preset browser with categories
< >Previous / Next preset navigation
SAVESave current settings as user preset
A/BToggle between two parameter snapshots for comparison
A-B / B-ACopy current state to the other slot
POWERBypass the effect (click-free 20ms crossfade)

Main Controls Row

The main controls are organized into labeled sections matching the original hardware panel layout, from left to right: SIGNAL IN (Level, Drive), NO. OF PEAKS, PHASING (Sweep Rate, Depth, HI/LO), MODE SWITCHING (6 illuminated buttons), MOD. (Flip Rate, OSC 2T, 2T Amount), FEED BACK (Feedback, FB Tilt), MIX (Mix 1, HI/LO, Mix 2), and OUTPUT (Output, Width, Drift).

Sync Row

Below the main controls, the sync row provides tempo synchronization chips (SWP, FLP, 2T) and ROT mode feature toggles (RND, INERTIA, ROVER, 2MIC, SHAPE).

Footer

The footer displays input and output level meters, a clip indicator (click to reset), and the phase correlation meter.

Controls Reference

SIGNAL IN Section

LEVEL (Input Level)

Range: 0% to 100% Default: 100%

Controls the input signal level before all processing. This is a simple volume control - at 100% the signal passes at unity gain, at 0% it is silent.

SettingCharacter
0-30%Significantly reduced input, quieter effect
30-70%Moderate input, useful for taming hot signals
70-100%Full input level (default operating range)

Tip: Reduce LEVEL when using high DRIVE settings to prevent the tube stage from overloading.

DRIVE (Fuzz/Tube Drive)

Range: 0% to 100% Default: 0% (clean)

Adds 12AX7 tube harmonic saturation before the allpass chain. The drive stage runs at 4x internal oversampling to prevent aliasing artifacts from the nonlinear waveshaping.

SettingCharacter
0%Clean, transparent - no harmonic addition
1-20%Subtle warmth, gentle even-order harmonics
20-50%Noticeable tube character, pleasing saturation
50-80%Prominent drive, gritty harmonics
80-100%Heavy distortion before the phaser chain

The drive architecture uses two gain stages internally:

  1. Input Gain (1-2x): Compensated at the output to maintain consistent level
  2. Tube Scale (1-3x): Not compensated - this is the audible drive increase

The 12AX7 waveshaping function uses asymmetric polynomial coefficients (k2=0.007, k3=0.003) followed by tanh soft-clipping, creating a blend of even and odd harmonics characteristic of single-ended tube amplifier stages.

Signal chain: Input - Mono sum - Noise floor - 16kHz pre-filter - 4x upsample - Tube waveshaping - Downsample - Drive buffer

NO. OF PEAKS Section

NO. OF PEAKS (Peak Count)

Positions: 3, 4, 5, 6, 7, 8, 9, 12, 15 Default: 6

Controls the number of allpass filter stages in the phaser chain, which determines how many spectral notches (and peaks between them) are created. This matches the 9-position rotary switch on the original Bode 8008 front panel.

PeaksCharacter
3Minimal, subtle phasing - few wide notches
4Classic phaser territory - similar to 4-stage pedals like the MXR Phase 90
5-6Rich, musical phasing with moderate density
7-8Dense, shimmering effect
9Highly textured, complex comb filtering
12Very dense spectral manipulation
15Maximum density - the most dramatic Shepard tone illusion

The peak count selector uses click-free dual-chain crossfading when switching between positions. The old and new allpass chain configurations blend over a short crossfade to prevent audio discontinuities.

Interaction with Feedback: More peaks + higher feedback = more pronounced resonances. At 15 peaks with high feedback, the effect becomes almost metallic.

PHASING Section

SWEEP RATE (SWP RATE)

Range: 0.01 Hz to 10.0 Hz Default: 0.1 Hz

Controls how fast the spectral notches appear to rise or fall. This is the primary "speed" control for the barberpole effect.

RangeCharacter
0.01-0.05 HzGlacial sweep - barely perceptible motion, great for subliminal enhancement
0.05-0.2 HzSlow sweep - the barberpole illusion works best in this range
0.2-0.5 HzModerate sweep - clearly audible motion
0.5-2.0 HzFast sweep - dramatic, aggressive phasing
2.0-10.0 HzVery fast - into vibrato/tremolo territory, especially in ROT mode

The knob has a logarithmic response (skew 0.3) for finer control at low rates where the barberpole illusion is most effective.

Important: When Sweep Sync is enabled, this knob is overridden by the synced note division.

OSC-DEPTH (Oscillator Depth)

Range: 0% to 100% Default: 100%

Controls the modulation depth of the sweep oscillator. At 0%, the notches do not move regardless of sweep rate. At 100%, the notches sweep through the full frequency range.

SettingCharacter
0%Static notch positions (similar to Freeze but with different notch placement)
10-30%Subtle modulation - gentle breathing effect
30-60%Moderate depth - balanced barberpole sweep
60-100%Full depth - maximum spectral movement

HI/LO (Phasing Range)

Options: HI (default) / LO Default: HI

Switches the frequency range of the phaser's allpass chain coefficients.

RangeAllpass CoefficientCharacter
HI-0.5Full-range spectral sweep (200 Hz - 20 kHz)
LO-0.65Bass-focused, darker sweep (20 Hz - 2 kHz)

When set to LO, the output level is automatically scaled to 0.5x to compensate for the increased low-frequency energy.

MODE SWITCHING Section

Six illuminated push-buttons select the operating mode. See Operating Modes for detailed descriptions of each mode.

ButtonModeBehavior
UP & DOWNSimultaneous up and downBoth sidebands present - notches move in both directions at once
UPBarberpole UpInfinite upward sweep - notches appear to rise endlessly
DOWNBarberpole DownInfinite downward sweep - notches appear to fall endlessly
FREEZEFreezeHold notch positions - static comb filter with no movement
FLIPFlipAlternate between up and down at FLIP RATE
ROTRotaryStandard back-and-forth phaser sweep (non-barberpole)

Mode changes use per-sample SSB sign crossfading to prevent clicks at transition points.

MOD. (Modulation) Section

FLIP RATE

Range: 0.1 Hz to 10.0 Hz Default: 0.5 Hz

Controls how often the sweep direction alternates in FLIP mode. At 0.5 Hz, the direction changes every 2 seconds.

SettingCharacter
0.1-0.5 HzSlow alternation - gradual direction changes
0.5-2.0 HzModerate alternation - rhythmic direction switching
2.0-10.0 HzFast alternation - rapid ping-pong effect

The flip transition uses a one-pole ~5ms crossfade on the SSB sideband sign to prevent clicks at direction change points.

Note: Only active in FLIP mode. In other modes, this control has no effect.

OSC 2T (Oscillator 2 - Triangle)

Range: 0.01 Hz to 10.0 Hz Default: 0.1 Hz

A secondary triangle-wave LFO (patent element 568) that modulates the primary sweep rate. This creates complex, evolving modulation patterns where the barberpole sweep speed itself varies over time.

SettingCharacter
0.01-0.1 HzVery slow rate variation - subtle breathing of sweep speed
0.1-0.5 HzModerate variation - clearly audible speed changes
0.5-3.0 HzFast variation - wobbling, unstable sweep
3.0-10.0 HzVery fast - vibrato-like speed modulation

OSC 2 DEPTH (2T Amount)

Range: 0% to 100% Default: 100%

Controls how much the OSC 2T triangle LFO modulates the sweep frequency. At 0%, the secondary oscillator has no effect regardless of its rate setting. At 100%, the sweep rate is modulated by +/-200% of the OSC 2T signal.

SettingCharacter
0%OSC 2T disabled - steady sweep rate
10-30%Subtle rate variation
30-60%Moderate variation - noticeable speed changes
60-100%Full modulation - dramatic sweep speed changes

FEED BACK Section

FEEDBACK (Feed Back)

Range: 0% to 95% Default: 0%

Recirculates the phased signal back into the input, intensifying the resonances at notch frequencies. The original Bode 8008 panel labels this as "FEED BACK" (two words).

SettingCharacter
0%No feedback - gentle, transparent phasing
5-20%Subtle resonance - notch positions become more defined
20-40%Moderate resonance - classic phaser sound
40-60%Strong resonance - metallic, ringing quality
60-80%High resonance - approaching self-oscillation territory
80-95%Maximum resonance - near self-oscillation, dramatic metallic ringing

The feedback path includes a one-pole lowpass filter (~10kHz) to prevent high-frequency self-oscillation, and a fast Pade [3/3] tanh approximation for soft-clipping at extreme levels. This keeps the feedback musically useful even at maximum settings.

Safety: The maximum feedback is capped at 95% to prevent runaway oscillation. The tanh saturation in the feedback path provides a natural soft-limit.

FB TILT (Feedback Tilt EQ)

Range: -100 to +100 Default: 0

Controls the cutoff frequency of a low-pass filter in the feedback path. This shapes the tonal character of the recirculated signal.

SettingCharacter
-100 to -50Very dark feedback - only low frequencies recirculate, creating warm, muffled resonance
-50 to -10Dark feedback - high frequencies are attenuated in the loop
0Neutral - matches the default 10kHz lowpass behavior
+10 to +50Bright feedback - more high frequencies pass through the loop
+50 to +100Very bright feedback - aggressive, cutting resonance

Tip: Negative FB TILT values create the warm, organic feedback characteristic of vintage analog phasers. Positive values create a more modern, aggressive character.

MIX Section

MIX 1 (Wet/Dry Mix)

Range: 0% to 100% Default: 50%

Equal-power crossfade between the dry input signal and the fully processed wet signal.

SettingCharacter
0%Dry signal only - no effect heard
10-30%Subtle phasing - effect is barely noticeable
30-50%Balanced - clear phasing without overwhelming the source
50-70%Dominant effect - phasing is the primary character
70-100%Nearly or fully wet - for send/return setups or dramatic effect

The crossfade uses equal-power curves:

  • Dry gain = cos(mix * pi/2)
  • Wet gain = sin(mix * pi/2)

This ensures consistent perceived loudness across the entire mix range.

HI/LO LEVEL (Mix Level Range)

Options: HI (default) / LO Default: HI

Scales the output level of the mix stage.

RangeScale FactorUse Case
HI1.0x (0-200% output)Normal operation, full output range
LO0.5x (0-100% output)Reduced output for gain staging when driving subsequent effects

MIX 2 (Phased/Direct)

Range: 0% to 100% Default: 100%

A secondary mix control that blends between the phased signal (SSB processed) and a direct path. This provides a different blending character than MIX 1:

  • MIX 1 blends wet vs. dry (before vs. after ALL processing)
  • MIX 2 blends phased vs. direct (SSB-processed vs. allpass-only)
SettingCharacter
0%Direct path only - allpass coloration without SSB shifting
50%Equal blend - subtle barberpole mixed with direct signal
100%Full phased output - complete barberpole effect

OUTPUT Section

OUTPUT (Output Level)

Range: 0% to 100% Default: 100%

Final output level control. The phaser mixing stages reduce the overall signal level, so this control provides up to 2x (6 dB) makeup gain at 100%.

SettingOutput Gain
0%Silence
50%Unity (1.0x)
100%Full makeup (2.0x / +6 dB)

Interaction with HI/LO: When Mix Level Range is set to LO, the output scale is halved (0-1.0x range instead of 0-2.0x).

STEREO WIDTH

Range: 0% to 100% Default: 50%

Controls the spectral stereo width by applying a frequency detune between the left and right SSB oscillators. This creates different notch positions in each channel, producing a true frequency-domain stereo effect.

SettingCharacter
0%Mono - identical processing in both channels (original hardware behavior)
10-30%Subtle width - gentle stereo enhancement
30-60%Moderate width - clear stereo imaging
60-100%Wide stereo - maximum channel differentiation

Important: This is NOT a simple pan or delay-based widener. The left channel shifts at shiftHz + detune while the right channel shifts at shiftHz - detune, creating genuinely different spectral content in each channel. This produces an audible stereo effect on speakers (not just headphones).

DRIFT RATE

Range: 0% to 100% Default: 0%

Adds subtle randomness to the sweep timing for a more organic, less mechanical sound. The drift modulation is generated by a slow random process that varies the sweep rate.

SettingCharacter
0%Perfectly steady sweep - mechanical, precise
5-15%Subtle drift - barely perceptible timing variations
15-40%Moderate drift - organic, natural-sounding instability
40-70%Heavy drift - noticeably unsteady, vintage character
70-100%Maximum drift - chaotic, unpredictable timing

Operating Modes

UP & DOWN

Both upper and lower SSB sidebands are present simultaneously. Spectral notches appear to move in both directions at once, creating a complex, shimmering effect.

Character: Rich, spacious, somewhat diffuse. The dual-direction movement makes it harder to perceive a clear rising or falling illusion, but the effect has greater density and spatial complexity.

Best for: Pads, ambient textures, background wash, stereo enhancement

UP (Barberpole Up)

The signature barberpole effect. Only the upper sideband is generated, causing all spectral notches to appear to rise endlessly. This is the audio equivalent of a Shepard tone ascending forever.

Character: Hypnotic upward motion, dramatic tension-building, the feeling of constant acceleration.

Best for: Risers, build-ups, tension sequences, the classic barberpole demonstration

DOWN (Barberpole Down)

The inverse of UP mode. Only the lower sideband is generated, causing all spectral notches to appear to fall endlessly.

Character: Descending, sinking, the feeling of falling or unwinding.

Best for: Transitions, breakdowns, descending sequences, tension release

FREEZE

Holds the spectral notch positions static. The sweep rate is effectively zero - the SSB frequency shift stops completely. The result is a fixed comb filter whose notch positions are determined by where the sweep was when FREEZE was activated.

Character: Static, fixed coloration. Like a snapshot of the phaser at one moment in time.

Best for: Fixed comb filter effects, resonant coloration, sound design, combining with OSC 2T for subtle breathing

Tip: FREEZE + OSC 2T creates a slowly breathing comb filter that evolves organically without the sweep motion.

FLIP

Alternates between UP and DOWN at a rate determined by FLIP RATE. The direction change uses a smooth 5ms crossfade to prevent clicks.

Character: Bouncing, alternating motion. At slow rates, you hear distinct direction changes. At fast rates, it becomes a complex modulation effect.

Best for: Rhythmic phasing, ping-pong effects, complex modulation, tempo-synced direction alternation

ROT (Rotary)

Standard back-and-forth phaser sweep, similar to a conventional phaser like the MXR Phase 90. The sweep oscillator moves the allpass chain coefficients up and down in a cyclic pattern rather than using SSB shifting.

Character: Traditional phaser sweep. The direction reversal is clearly audible, unlike the infinite barberpole modes.

Best for: Classic phaser sounds, guitar effects, organ/Leslie emulation (especially with ROVER), traditional modulation

Special Features in ROT Mode:

  • ROT Shape: Choose from 5 LFO waveforms (Sin, Tri, Saw, S&H, Smooth Random)
  • RND: Enable chaotic OSC 2T + Drift modulation
  • INERTIA: Leslie-style speed ramping (when set to "Rot")
  • ROVER: Rotating speaker post-processing (AM, bandpass, HF rolloff)

DAW Tempo Sync

Overview

Three independent oscillators can be locked to the host DAW's tempo:

ChipControlsActive In
SWPSweep RateAll modes except FREEZE
FLPFlip RateFLIP mode only
2TOSC 2T RateAll modes (when OSC 2 Depth > 0)

Each sync chip has two controls:

  1. Toggle: Click the chip label (SWP/FLP/2T) to enable/disable sync
  2. Division: Click the note division display to open the division selector

Note Divisions

15 note divisions are available, from fastest to slowest:

DivisionDescriptionBeats
1/3232nd note1/8 beat
1/16T16th note triplet2/3 of 1/4 beat
1/1616th note1/4 beat
1/8T8th note triplet2/3 of 1/2 beat
1/88th note1/2 beat
1/8.Dotted 8th note3/4 beat
1/4TQuarter note triplet2/3 beat
1/4Quarter note1 beat
1/4.Dotted quarter note1.5 beats
1/2THalf note triplet4/3 beats
1/2Half note2 beats
1/2.Dotted half note3 beats
1/1Whole note4 beats (1 bar)
2/1Two whole notes8 beats (2 bars)
4/1Four whole notes16 beats (4 bars)

Tempo Sync Formula

When sync is enabled, the oscillator frequency is calculated as:

frequency_hz = bpm / 60 / beat_multiplier

For example, at 120 BPM with 1/4 note division:

  • frequency = 120 / 60 / 1.0 = 2.0 Hz

At 120 BPM with 1/1 (whole note) division:

  • frequency = 120 / 60 / 4.0 = 0.5 Hz

Sync Tips

  • When SWP sync is enabled, the Sweep Rate knob is overridden by the synced rate
  • Multiple oscillators can be synced independently for complex rhythmic interactions
  • The "Full Lockdown" preset demonstrates all three oscillators synced simultaneously
  • BPM range is clamped to 20-300 BPM for stability

ROT Mode Features

RND (Random Chaos)

Type: Toggle (On/Off) Default: Off

When enabled in ROT mode, gates the OSC 2T and Drift Rate modulators to create chaotic, unpredictable sweep patterns. When RND is off in ROT mode, these modulators are disabled for a clean, regular back-and-forth sweep.

SettingCharacter
OffClean Bode-style rotary sweep - regular, predictable
OnChaotic wobble - irregular, organic, unpredictable

Note: RND only affects ROT mode. In all other modes, OSC 2T and Drift are always active regardless of RND setting.

INERTIA (Speed Ramping)

Type: 3-way choice (Off / Rot / Global) Default: Off

Applies Leslie-style speed ramping - a one-pole smoothing filter (time constant ~0.5 seconds) on the sweep rate. This simulates the physical inertia of a rotating speaker horn that takes time to speed up and slow down.

SettingBehavior
OffNo speed ramping - rate changes are instant
RotRamping in ROT mode only - other modes change instantly
GlobalRamping in all modes - every rate change is gradual

INERTIA smooths both the Sweep Rate and Flip Rate. The smoothing tracks the actual rate even when INERTIA is off, so toggling it on mid-session produces a seamless transition.

Tip: Set INERTIA to Rot, automate the Sweep Rate between slow and fast values, and hear the realistic acceleration/deceleration of a Leslie speaker changing speeds.

ROVER (Rotating Speaker Post-Processing)

Type: 3-way choice (Off / Subtle / Full) Default: Off

Adds rotating speaker characteristics as post-processing after the main phaser effect. ROVER works in all modes, not just ROT. The processing chain consists of four cascaded stages: Bandpass - Doppler - Amplitude Modulation - Low-Pass filtering.

ROVER Off

No ROVER processing - the phaser output passes directly to the output stage.

ROVER Subtle

Conservative spatial character:

StageSetting
Bandpass+2 dB resonant peak
Amplitude Modulation35% depth
Low-Pass FilterOne-pole (-6dB/oct), 5-20 kHz sweep
DopplerDisabled

Character: Gentle 3D spatial enhancement without obvious rotating speaker artifacts. Suitable for mix use where you want added dimension without drama.

ROVER Full

Dramatic rotating speaker emulation:

StageSetting
Bandpass+2 dB resonant peak
Amplitude Modulation65% depth
Low-Pass FilterTwo-pole (-12dB/oct), 1.5-20 kHz sweep
DopplerEnabled (Leslie 122 horn simulation)

Character: Obvious tremolo and bright/dark cycling. The two-pole LP filter provides clearly audible tonal variation, and the Doppler effect adds authentic pitch wobble from the horn rotation.

Doppler Details: The Doppler stage simulates a Leslie 122 horn spinning in a circle. Each channel uses a circular delay buffer with a base delay of 1.0ms and modulation depth of +/-0.44ms (simulating a horn radius of ~15cm). Cubic Hermite 4-point interpolation is used for smooth delay modulation.

2MIC (ROVER 2-Mic Stereo)

Type: Toggle (On/Off) Default: Off

When enabled, the right channel receives a 180-degree phase offset on all ROVER modulation stages (Doppler, AM, and LP). This simulates the two-microphone recording technique used with Leslie speakers, where microphones are placed on opposite sides of the rotating horn.

SettingCharacter
OffMono ROVER modulation - identical in both channels
OnStereo ROVER imaging - L and R channels have opposite modulation phase

Tip: 2MIC creates the widest, most dramatic stereo image when combined with ROVER Full. The opposite-phase modulation creates a strong sense of spatial rotation.

ROT SHAPE (Rotary LFO Waveform)

Type: 5-way choice Default: Sin

Selects the waveform shape for ROT mode's primary sweep oscillator. Only affects ROT mode - all other modes use their own sweep generators.

ShapeCharacter
SinSmooth sinusoidal sweep - classic, natural rotation
TriTriangle wave - linear up/down sweep, sharper transitions at extremes
SawSawtooth - linear ramp up with instant reset, asymmetric
S&HSample & Hold - random stepped values, chaotic jumps
RndSmooth Random - continuously varying random values, organic drift

Tip: S&H creates a "broken carousel" effect where the sweep position jumps randomly. Combine with INERTIA to smooth the jumps into gliding transitions.

Analog Character & Drive

Analog Character Features

The KLANG 8008 includes several analog character modeling features that add warmth, depth, and organic imperfections:

Per-Allpass Micro-Saturation

Each of the 12 Dome Filter allpass stages applies a subtle nonlinear waveshaping function to the signal passing through it. This creates gentle, distributed saturation that accumulates through the chain - similar to how analog allpass filters exhibit soft clipping at their internal op-amp stages.

Component Tolerance

The allpass filter coefficients include subtle random variations (within engineering tolerances) to simulate the natural component value spread in analog circuits. This prevents the "too perfect" character of digital implementations.

Noise Floor Injection

A low-level noise floor is injected at the drive stage, simulating the thermal noise present in analog circuits. The noise level is proportional to the drive amount - clean signals remain pristine while driven signals pick up subtle analog hiss.

Coefficient Modulation

The allpass filter coefficients receive subtle per-sample modulation, simulating the voltage-dependent behavior of analog components. This creates micro-variations in the notch positions that contribute to a more organic, living sound.

Output Transformer

A UTC A-24 style transformer model processes the output signal with:

FeatureImplementation
HF RolloffOne-pole lowpass at 40 kHz (leakage inductance simulation)
LF SaturationIron-core flux saturation below 200 Hz crossover (drive = 1.2x)
Hysteresis IMDDerivative-based intermodulation (0.05 coefficient) creating sum/difference tones
Peak LimitingSoft peak limiter at 8.0x threshold for safety

Feedback Path Character

The feedback path includes:

  • High-pass filter: Removes DC and sub-bass buildup from the recirculation
  • Asymmetric saturation: Soft-clips the feedback signal to prevent runaway oscillation while maintaining musical character
  • Variable low-pass (FB TILT): Shapes the tonal character of recirculated signal

Factory Presets

NIVIEM KLANG 8008 includes 46 professionally designed factory presets organized into 8 categories. Each preset configures all parameters to create a specific sonic character.

Init (1 preset)

PresetDescription
DefaultBalanced starting point - Barberpole UP, 6 peaks, moderate sweep

Subtle (6 presets)

Gentle, barely perceptible phasing for mix enhancement.

PresetDescription
Silk ThreadUltra-slow sweep with LO range, like breathing
Morning HazeDelicate warmth with subtle feedback tilt
Glass SurfaceFocused center image, transparent 3-peak phasing
Air ShiftWide stereo shimmer, almost subliminal
Whisper PhaseGentle warmth with low tube saturation
Dew DropsOSC 2 micro-modulation, smooth and glassy

Classic (7 presets)

Quintessential barberpole phaser sounds.

PresetDescription
Classic RiseDefinitive rising barberpole
Endless FallInfinite downward spiral
PendulumTraditional up-and-down motion
PrismaticShimmering multi-peak, light through a prism
MotorwaySteady motorik pulse
Liquid MetalWarm, driven sweep with analog character
Deep PhaseDense 12-pole phase comb

Vintage (6 presets)

Sounds evoking classic hardware and eras.

PresetDescription
Valve RadioWarm tube radio being swept, 70s character
Tape MachineSlow vintage wobble, tape-like with RND
Sequencer DreamBerlin-school era, synced sweep
Dark SidePsychedelic-era slow rotation with ROVER
Transistor BoxTransistor-era phaser, few peaks, narrow
Cathedral OrganB3 organ through Leslie with ROVER Full

Rotary (7 presets)

Leslie and rotating speaker emulations using ROT mode.

PresetDescription
Slow RotorClassic slow Leslie rotation
Fast ChoraleFast chorale speed with 2-mic imaging
Angular SpinTriangle LFO, sharper transitions
Ramp RotorSawtooth LFO, asymmetric ramp-up
Broken CarouselRandom S&H LFO, chaotic stepped rotation
Wandering HornSmooth random rotation, organic drifting
Revolving DoorFull chaos - everything cranked, dramatic

Synced (6 presets)

Tempo-locked presets for rhythmic production.

PresetDescription
Quarter PulseQuarter note sweep, classic rhythmic barberpole
Eighth DriveEighth note with tube warmth
Dotted SwingDotted quarter note, swung off-kilter rhythm
Triplet CascadeSweep and flip both synced to triplet divisions
Half WaveHalf note slow dramatic sweep with 12 peaks
Full LockdownAll three oscillators synced to DAW tempo

Creative (7 presets)

Experimental and unusual applications.

PresetDescription
Freeze FrameStatic frozen position with subtle drift
Deep SpaceFrozen in space, wide stereo, slow OSC 2 breathing
UnderwaterSubmerged, dark, and murky with 15 peaks
Alien SignalOtherworldly flip + modulation madness
Broken SignalChaotic flip + drift + heavy drive
Automation DreamSmooth rate transitions, automation-friendly with Global inertia
Ice CrystalBright, glassy freeze with resonant feedback

Extreme (6 presets)

Heavy modulation and feedback for dramatic effects.

PresetDescription
Feedback WashDense resonant phasing from high feedback
Barberpole IllusionMaximum Shepard tone - all 15 peaks, full depth
Full TiltEverything cranked - drive, feedback, modulation, width
Laser HarpFast bright sweep, many peaks, wide stereo
Ring CarrierFast OSC 2, heavy drive, ring-modulation territory
OverloadMaximum drive into max feedback, distorted chaos

Tips & Techniques

Classic Barberpole Riser

ParameterSetting
ModeUP
Sweep Rate0.1-0.3 Hz
Peaks6-9
OSC-Depth80-100%
Feedback10-30%
MIX 150-60%

Infinite Descending Effect

ParameterSetting
ModeDOWN
Sweep Rate0.1-0.2 Hz
Peaks6-8
OSC-Depth80%
Feedback15-25%
FB Tilt-20 to -40 (dark feedback)
MIX 150%

Subtle Mix Enhancement

ParameterSetting
ModeUP
Sweep Rate0.02-0.05 Hz
Peaks4-5
OSC-Depth20-40%
RangeLO
Feedback0-10%
MIX 115-25%
Stereo Width60-80%

Authentic Leslie Emulation

ParameterSetting
ModeROT
Sweep Rate0.4-0.8 Hz (slow) or 1.5-2.0 Hz (fast)
Peaks4-5
OSC-Depth55-70%
INERTIARot
ROVERFull
2MICOn
Stereo Width65-80%

Pro Tip: Automate the Sweep Rate between 0.4 Hz and 2.0 Hz with INERTIA on "Rot" to simulate Leslie slow/fast speed switching with authentic acceleration/deceleration.

Frozen Resonant Filter

ParameterSetting
ModeFREEZE
Peaks9-15
OSC-Depth80%
Feedback40-60%
FB TiltAdjust for tone
OSC 2T0.05-0.1 Hz
OSC 2 Depth30-50%
MIX 150-70%

Rhythmic Tempo-Synced Phasing

ParameterSetting
ModeUP or FLIP
SWP SyncOn, 1/4 note
FLP SyncOn, 1/8T (if FLIP mode)
Peaks6-8
OSC-Depth75-90%
Feedback15-25%
MIX 150%

Sound Design: Alien Textures

ParameterSetting
ModeFLIP
Sweep Rate1.0-3.0 Hz
Flip Rate3.0-8.0 Hz
Peaks12-15
OSC-Depth100%
Feedback50-70%
DRIVE30-60%
Drift Rate40-80%
OSC 2T2.0-5.0 Hz
MIX 160-80%

Parallel Processing

Insert the plugin on a send/aux track:

  1. Set MIX 1 to 100%
  2. Set MIX 2 to 100%
  3. Blend with dry signal using the aux fader
  4. This allows independent EQ/compression on the phased signal

Automation Techniques

Key parameters for automation:

ParameterAutomation Use
ModeSwitch between modes for section changes
Sweep RateBuild tension by gradually increasing speed
FeedbackIncrease for intensity, reduce for subtlety
DRIVEAdd grit for choruses, clean for verses
MIX 1Fade effect in/out for transitions
PeaksChange density between sections

Tip: Set INERTIA to "Global" when automating Sweep Rate for smooth, musical speed transitions without abrupt changes.

Parameter Reference

User-Adjustable Parameters

ParameterAPVTS IDRangeDefaultDescription
BypassbypassOn/OffOffEffect bypass with 20ms crossfade
Input LevelinputLevel0-100%100%Input gain (0.0-1.0x)
Drivefuzz0-100%0%12AX7 tube drive (4x oversampled)
No. of PeaksnumPeaks3-15 (9 positions)6Allpass chain stage count
Sweep RatesweepRate0.01-10.0 Hz0.1 HzPrimary sweep oscillator speed
OSC-DepthoscDepth0-100%100%Sweep modulation depth
Range HI/LOoscDepthRangeHI/LOHIAllpass coefficient range
Modemode6 choicesUPOperating mode
Flip RateflipRate0.1-10.0 Hz0.5 HzDirection change rate (FLIP mode)
Drift RatedriftRate0-100%0%Timing randomness
Feedbackfeedback0-95%0%Recirculation amount
FB TiltfbTilt-100 to +1000Feedback path tonal balance
OSC 2T Rateosc2t0.01-10.0 Hz0.1 HzSecondary triangle LFO rate
OSC 2 Depthosc2tAmount0-100%100%Secondary LFO modulation depth
Mix 1mix0-100%50%Wet/dry crossfade
Mix Level HI/LOmixLevelRangeHI/LOHIOutput level range
Mix 2mix20-100%100%Phased/direct blend
Output Leveloutput0-100%100%Final output gain (0-2x)
Stereo WidthstereoWidth0-100%50%SSB oscillator frequency detune
Sweep SyncsweepSyncOn/OffOffLock sweep to DAW tempo
Sweep DivisionsweepDivision15 divisions1/4Synced sweep note division
Flip SyncflipSyncOn/OffOffLock flip rate to DAW tempo
Flip DivisionflipDivision15 divisions1/4Synced flip note division
OSC 2T Syncosc2tSyncOn/OffOffLock OSC 2T to DAW tempo
OSC 2T Divisionosc2tDivision15 divisions1/4Synced OSC 2T note division
ROT RNDrotRndOn/OffOffChaotic modulation in ROT mode
InertiainertiaOff/Rot/GlobalOffLeslie-style speed ramping
RoverroverOff/Subtle/FullOffRotating speaker post-processing
Rover 2-Microver2micOn/OffOff2-mic stereo ROVER imaging
ROT ShaperotShapeSin/Tri/Saw/S&H/RndSinROT mode LFO waveform

Internal Parameters (Fixed)

ParameterValueDescription
Dome Filter12-pole (6+6)Fixed Hilbert transformer coefficients
Drive Oversampling4xFixed polyphase IIR halfband filters
DC Blocker6 Hz HPFPer-channel, after phaser processing
Output TransformerUTC A-24 modelLF saturation + HF rolloff + hysteresis
Feedback Lowpass~10 kHzOne-pole, prevents HF self-oscillation
Feedback Saturationtanh Pade [3/3]Fast approximation, clamp outside |x| > 3
Parameter Smoothing5-20msPer-sample one-pole smoothing
Bypass Crossfade20msLinear SmoothedValue

Technical Specifications

Audio

SpecificationValue
Sample Rates44.1 kHz - 192 kHz
Bit Depth32-bit float processing
ChannelsStereo (mono input accepted)
Latency~16 samples at 44.1 kHz (from 4x oversampled drive stage)
Plugin FormatsAU (macOS), VST3 (macOS/Windows)

DSP Engine

ComponentImplementation
Dome FilterTwo parallel 6-stage allpass chains with interleaved break frequencies
Quadrature Error< 2 degrees across 20 Hz - 20 kHz
Allpass TopologyFirst-order: H(z) = (a + z^-1) / (1 + a*z^-1)
SSB OscillatorCoupled-form quadrature rotation (4 mul + 2 add per sample)
Tube SaturationAsymmetric polynomial (k2=0.007, k3=0.003) + tanh soft-clip
Drive OversamplingJUCE polyphase IIR halfband filters, 4x fixed
TransformerIron-core LF sat + leakage inductance LP + hysteresis IMD
DC BlockingFirst-order HPF at 6 Hz, per channel
Denormal Preventionjuce::ScopedNoDenormals per processBlock
NaN/Inf ProtectionFull output buffer scan with replacement

Timing

ParameterValue
Input Level Smoothing15ms linear
Bypass Crossfade20ms linear
Engine Parameter Smoothing~5ms one-pole per-sample
Allpass Coefficient SmoothingPer-sample one-pole
Mode Change Crossfade~5ms SSB sign smoothing
numPeaks ChangeDual-chain crossfade
RMS Metering Integration300ms one-pole
Peak Metering DecayIEC 60268-10 Type I (26 dB/sec)
True Peak Detection4x oversampled Catmull-Rom cubic

Metering

MeterSpecification
Input PeakTrue peak (4x Catmull-Rom), IEC 60268-10 decay
Output PeakTrue peak (4x Catmull-Rom), IEC 60268-10 decay
Input RMSOne-pole smoothed, 300ms VU-style
Output RMSOne-pole smoothed, 300ms VU-style
Clip IndicatorLatched when true peak > 0 dBFS, click to reset
Phase CorrelationPer-block calculation: <L*R> / sqrt(<L^2> * <R^2>)
Sweep Phase0-1 normalized for UI animation

Real-Time Safety

FeatureStatus
Memory AllocationNone in processBlock (all pre-allocated)
Locks/MutexesNone in audio path
Thread SafetyAtomic parameters, lock-free processing
Denormal PreventionActive
NaN/Inf ProtectionActive
Buffer Size Support1 sample to 8192+ samples

The Science of Barberpole Phasing

How It Works

The barberpole phaser creates its illusion through the combination of two signal processing techniques:

1. Phaser Allpass Chain (Comb Filter)

An allpass filter passes all frequencies at equal amplitude but introduces frequency-dependent phase delay. When the allpass output is mixed with the original signal, certain frequencies cancel (notches) and others reinforce (peaks), creating a comb filter pattern.

The number of allpass stages determines how many notches exist in the spectrum. More stages = more notches = denser comb filtering.

2. Single-Sideband (SSB) Frequency Shifting

A frequency shifter adds a constant frequency offset to every component in the signal. Unlike pitch shifting (which multiplies frequencies), frequency shifting adds: if the shift is +5 Hz, a 100 Hz tone becomes 105 Hz, a 1000 Hz tone becomes 1005 Hz, and a 10000 Hz tone becomes 10005 Hz.

SSB shifting is achieved using a Hilbert transformer (the Dome Filter) which creates two versions of the signal: one in-phase (I) and one at 90 degrees (Q, quadrature). These are modulated by cosine and sine of the shift frequency:

Output = I * cos(2*pi*f_shift*t) + Q * sin(2*pi*f_shift*t)   [upper sideband]
Output = I * cos(2*pi*f_shift*t) - Q * sin(2*pi*f_shift*t)   [lower sideband]

3. The Combined Effect

When the phaser allpass chain is placed inside the SSB feedback loop, the comb filter notches are continuously shifted in one direction. New notches appear at one edge of the audible spectrum as old ones disappear at the other edge. The brain perceives this as an infinite, continuous sweep.

The Dome Filter

Named after engineer R.B. Dome, who published the underlying phase-difference network theory in 1946, the Dome Filter is a wideband 90-degree phase-difference network. It consists of two parallel allpass chains with carefully chosen break frequencies arranged so that the phase difference between the two chains remains within 2 degrees of 90 degrees across the entire audio band (20 Hz - 20 kHz).

In the KLANG 8008, each chain has 6 first-order allpass stages for a total of 12 poles. The break frequencies are interleaved between the chains and spaced logarithmically across the audio spectrum.

The Shepard-Risset Connection

The barberpole phaser is closely related to the Shepard tone (Roger Shepard, 1964) and Risset glissando (Jean-Claude Risset) - auditory illusions where discrete tones appear to rise or fall endlessly. However, the barberpole phaser achieves its illusion through continuous frequency shifting rather than discrete tone cycling. Bode's approach does not require the raised-cosine spectral envelope used in the Shepard-Risset cascaded-notch method.

Nivipedia - Built-in Encyclopedia

Accessing Nivipedia

Click the NIVI button in the top-left corner of the plugin header to open the built-in encyclopedia. Nivipedia contains 32 educational entries organized into 6 categories:

CategoryTopics
KLANG 8008Plugin overview, heritage story ("From Blueprint to Plugin")
TheoryBarberpole phaser, allpass filter, Dome Filter, SSB modulation, Hilbert transform, signal flow, feedback, Shepard tone, comb filter, depth range
HistoryHarald Bode, US Patent 4,399,326
ModesUP & DOWN, UP, DOWN, FREEZE, FLIP, ROT
ControlsSweep rate, No. of Peaks, Oscillator depth, Stereo width, Feed Back, Mix 1 & 2, Input level, Feedback Tilt, Drift Rate
FeaturesTempo sync, Analog character, Phase correlation meter

Context Menu

Right-click any knob or mode button to see a "What is this?" option. Clicking it opens Nivipedia directly to the relevant entry for that control.

Preset Management

Loading Presets

  1. Click the preset name in the header bar
  2. The preset browser opens, showing presets organized by category
  3. Click a preset name to load it
  4. Parameters update immediately with engine reset (no clicks)

Navigating Presets

Use the < > arrows in the header to step through presets sequentially.

Saving User Presets

  1. Adjust all parameters to desired settings
  2. Click the SAVE button in the header
  3. Enter a preset name
  4. Click Save

User Preset Location

macOS:

~/Library/Application Support/Niviem/NIVIEM KLANG 8008/Presets/

Windows:

C:\Users\[Username]\AppData\Roaming\Niviem\NIVIEM KLANG 8008\Presets\

A/B Comparison

The A/B system lets you compare two parameter snapshots:

  1. Set up your sound (this is state "A")
  2. Click A to switch to state "B"
  3. Make changes (this is now state "B")
  4. Click B to switch back to state "A"
  5. Toggle between A and B to compare
  6. Use A-B to copy A's settings to B, or B-A for the reverse

Undo/Redo

The plugin integrates with your DAW's undo system (Cmd+Z / Ctrl+Z). Parameter changes are tracked and can be undone through the DAW's standard undo mechanism.

Troubleshooting

No Sound Output

  1. Check that POWER is engaged (lit up)
  2. Verify MIX 1 is not at 0%
  3. Ensure OUTPUT is not at 0%
  4. Check Input Level is not at 0%
  5. Verify the plugin is receiving audio (check DAW routing)

Sweep Not Moving

  1. Ensure you are not in FREEZE mode
  2. Check that OSC-Depth is above 0%
  3. If Sweep Sync is enabled, verify the DAW is providing tempo information
  4. Check the Sweep Rate is not at minimum (0.01 Hz is very slow - may appear static)

Sound is Too Dark

  1. Check FB TILT - negative values create dark feedback. Set to 0 or positive
  2. Check HI/LO Range - LO range produces darker, bass-focused phasing
  3. Reduce Feedback if the dark feedback path is dominating
  4. Check if ROVER is on Full with low LP cutoff

Clicking When Changing Modes or Peaks

This should not happen with the current version - mode changes use SSB sign crossfading and peak changes use dual-chain crossfading. If you hear clicks:

  1. Ensure you are running the latest plugin version
  2. Check if another plugin in the chain is causing the issue
  3. Try increasing your DAW's buffer size

High CPU Usage

  1. The 4x oversampled drive stage is the primary CPU consumer. Set DRIVE to 0% if not needed
  2. ROVER Full with Doppler adds additional CPU load
  3. Close the plugin GUI when not actively adjusting - the WebView UI consumes some resources
  4. Check for CPU overload from other plugins in the session

Phase Correlation Meter Shows Negative

Negative phase correlation indicates the left and right channels are partially out of phase. This is expected behavior when using:

  • High Stereo Width values (creates deliberately different content in L/R)
  • ROVER with 2MIC enabled (opposite-phase modulation)
  • UP & DOWN mode with width (combined sidebands in different directions)

Moderate negative correlation (-0.3 to 0) is usually fine for stereo playback. If the meter frequently dips below -0.5, reduce Stereo Width or disable 2MIC to improve mono compatibility.

Plugin Not Appearing in DAW

  1. Rescan plugins in your DAW
  2. Check that the plugin is in the correct folder:
    • AU (macOS): ~/Library/Audio/Plug-Ins/Components/
    • VST3 (macOS): ~/Library/Audio/Plug-Ins/VST3/
    • VST3 (Windows): C:\Program Files\Common Files\VST3\
  3. Restart your DAW

Windows: WebView2 Required

If you see a message about WebView2:

  1. Download Microsoft WebView2 Runtime from: https://developer.microsoft.com/en-us/microsoft-edge/webview2/
  2. Install and restart your DAW

License Activation

  1. On first launch, the plugin displays an activation dialog
  2. Enter your license key (received after purchase)
  3. Click "Activate"
  4. If you choose "Continue as Demo", the plugin is fully functional but audio fades to silence for 5 seconds every 60 seconds of playback
  5. You can activate at any time by clicking the ACTIVATE button in the header

Credits & References

Development

Developed by Milan Vasiljev / NIVIEM

Primary Technical References

SourceUse
ZKM Archive (Karlsruhe)Original Bode schematics, front panel layouts, circuit designs
US Patent 4,399,326Signal flow architecture for barberpole phasing
Bode, H. (1984)"History of Electronic Sound Modification," J. Audio Eng. Soc., vol. 32, no. 10, pp. 730-739
Dome, R.B. (1946)Phase-difference network theory for wideband quadrature generation

Special Thanks

To Harald Bode (1909-1987) whose visionary work in electronic music technology created instruments that continue to inspire musicians, engineers, and sound designers decades later. The Model 8008 Barberpole-Phaser remains one of the most innovative audio effects ever conceived.

Version History

Version 1.0 (March 2026)

  • Initial release
  • Authentic SSB Architecture: True Single-Sideband frequency shifting with 12-pole Dome Filter
  • 6 Operating Modes: UP & DOWN, UP, DOWN, FREEZE, FLIP, ROT
  • Variable Peak Count: 9 discrete positions (3-15) matching original hardware
  • 4x Oversampled Drive: 12AX7 tube saturation with anti-aliased processing
  • Output Transformer: UTC A-24 style iron-core model
  • DAW Tempo Sync: 15 note divisions for SWP, FLP, and 2T oscillators
  • ROT Mode Enhancements: RND, INERTIA, ROVER (with 2-mic stereo and 5 LFO shapes)
  • Stereo Width: True SSB frequency detune between L/R channels
  • 46 Factory Presets: 8 categories from subtle to extreme
  • Nivipedia: 32-entry built-in encyclopedia
  • Premium WebView UI: Brushed metal faceplate with real-time metering
  • Phase Correlation Meter: Spring-physics animated needle
  • A/B Comparison: Instant parameter snapshot switching
  • Demo Mode: Full functionality with periodic silence (60s play / 5s fade / 2s silence)

Trademark Notice

NIVIEM KLANG 8008 is an independent product developed by NIVIEM. This plugin is an authentic emulation inspired by the Bode Sound Co. Model 8008 Barberpole-Phaser, designed by Harald Bode.

References to the Bode Sound Co., Model 8008, MXR Phase 90, Small Stone, and Leslie are used solely for the purpose of describing the sound characteristics and historical context that inspired this emulation, which is standard practice in the audio software industry. These names are trademarks of their respective owners.

US Patent 4,399,326 has expired and is in the public domain.


Copyright 2026 Milan Vasiljev. All Rights Reserved.

NIVIEM is a trademark of Milan Vasiljev.