ROSSUM ELECTRO-MUSIC PANHARMONIUM

ROSSUM ELECTRO-MUSIC PANHARMONIUM

ROSSUM ELECTRO-MUSIC PANHARMONIUM

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RossumĀ Electro-Music Software ArchitectĀ Bob BlissĀ (who also, as it happens, fathered E-muā€™s famed ā€œEOSā€ Emulator Operating System) has createdĀ Panharmonium, a unique music and sound design tool that analyzes the spectral content of any audio signal and uses that analysis to drive a bank of from 1 to 33 oscillators. Depending on various control settings, Panharmonium can accurately reproduce the input spectrum in real time or modify it in a multitude of wildly creative ways. All with an interface whose immediacy encourages performance and interaction.
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Panharmonium input can be anything from a single oscillator to an entire mix (including vocals). From dense, swirling pads and drones that evolve with the inputā€™s changing spectrum, to clock-syncable spectral arpeggiation, to as-yet unnamed harmonic effects, Panharmonium opens up an entirely new world of sonic possibilities.
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Additionally, Panharmonium can take a snapshot of an instantaneous spectrum and use that as a complex harmonic oscillator, which can then be modified and modulated by all of Panharmoniumā€™s other controls. Ā 
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Panharmonium accomplishes its magic though a combination of functional submodules:
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Spectral Analyzer
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The Spectral Analyzer provides tools for defining the analysis process.Ā 
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- TheĀ SliceĀ parameter sets the rate at which the incoming audio is transformed to spectral data. It can be set by theĀ SliceĀ andĀ MultiplierĀ controls, theĀ TapĀ button, or by an external clock signal. Very short slice times result in real-time spectral data, while longer times can create rhythmic spectral patterns.Ā 
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- TheĀ Center FreqĀ andĀ BandwidthĀ controls (and associated CV inputs and attenuverters) control the range of frequencies to be analyzed. TheĀ BandwidthĀ control allows the selection of narrow to wide pass bands on the left side of the pot and narrow to wide notches on the right side of the pot. The ability to sweep the frequency and modify the bandwidth under CV control opens up a wide range of sonic effects.
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- TheĀ FreezeĀ button lets you freeze the spectral integrator, sustaining the currently analyzed spectrum.
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Spectral Modifiers
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These controls allow you to creatively modify the analyzed spectra.
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- TheĀ VoiceĀ parameter lets you select from 1 to 33 oscillators to resynthesize the spectrum.
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- TheĀ BlurĀ parameter (and associated CV input) is a spectral lag processor that controls how quickly the spectrum can change. Ā 
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- TheĀ FeedbackĀ control (and associated CV input) lets you route the resynthesized audio back into the entire processing chain for subtle or dramatic feedback effects. At its max, the output becomes self-sustaining, even if the input is removed.
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Oscillator Bank
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The Oscillator Bank resynthesizes the analyzed spectra.
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- TheĀ WaveformĀ parameter selects the oscillators' waveform. In addition to the usual sine, triangle, sawtooth and pulse waveforms, two special crossfading sine and sawtooth waveforms are included.
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- TheĀ FreqĀ control lets you tune the oscillators over a +/-7 semitone range. The frequency is further controlled by the 1V/Oct input and the FM input and attenuverter.
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- TheĀ OctaveĀ control, not surprisingly, shifts the pitch of the output by octaves.
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- TheĀ GlideĀ parameter sets the amount of polyphonic glide (i.e., each oscillator has its own glide circuit).
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- TheĀ MixĀ controlĀ  (and associated CV input) sets the balance between the original input audio and the resynthesized audio.
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Optional Functions
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A number of optional functions can be selected by using theĀ Output ModeĀ andĀ TapĀ buttons.
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- Holding theĀ Output ModeĀ button and adjusting theĀ SliceĀ control enablesĀ Drums Mode, which optimizes the spectral analysis for drums and other percussive inputs.
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- Holding theĀ Output ModeĀ button and adjusting theĀ Center FreqĀ control allows you to instead set the lower frequency of the analysis range.
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- Holding theĀ Output ModeĀ button and adjusting theĀ FreqĀ control enablesĀ Spectral Warping. In contrast to conventional frequency adjustment, where the harmonic relationships between the spectral elements are preserved,Ā SpectralĀ WarpingĀ shifts the harmonic elements individually, producing a variety of clangorous, swarming textures.
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- Holding theĀ TapĀ button and adjusting theĀ FreqĀ control quantizes the resulting frequency adjustments to semitones.
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Spectra Memories and Presets
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Panharmonium provides 12 userĀ SpectraĀ memories and 12 userĀ PresetsĀ (in addition to 12 each factory memories).
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- TheĀ SpectraĀ memories let you store up to 12 frozen slices. When selected, a spectrum (up to 33 oscillators wide!) replaces any live input and can have its pitch controlled by the 1V/Oct input and FM controls.Ā 
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- AĀ PresetĀ is a snapshot of all of the module settings, along with the value of any CVs present at the moment the preset is saved.
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PanharmoniumĀ  isĀ 26HP wideĀ andĀ 25mm deep.
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Power requirements (max):Ā Ā 140mA +12V,Ā 30mA -12V. Reverse polarity protected.
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