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Max Kohl Helmholtz Sound Synthesizer

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    Description
    Built by Max Kohl in Germany, based on Herman von Helmholtz concepts. The "Sound Synthesizer" used an array of ten tuning forks that were vibrated by electromagnets to produce combinations of pure tones. The tuning forks were amplified with Helmholtz Resonator to generate overtones.

    The range of overtones could be ‘filtered’ by a mechanical shutter. The instrument helped in the understanding of the nature of speech and vowel sounds; vowel sounds being varied combinations of resonant overtones or ‘formants’ created by the muscles of the vocal tract.

    Despite the name, The "Sound Synthesizer" system was not designed for musical, but scientific purposes to demonstate many of the theories that were published in Hemlotz's 1890 book, "On the Sensations of Tone as a Physiological Basis for the Theory of Music".
    Images
    Architecture
    Type: Acoustic
    Synthesis: Resonators
    Oscillators
    Oscillators: 10
    Waveforms: Sine
    Osc Modulation: Keyboard
    Oscillator Notes:
    10 x Resonators
    Filters
    Filters: 1
    Filter Notes:
    Mechanical shutter.
    Polyphony & Tuning
    Polyphony: 10
    Timbrality: 1
    Tuning: Standard
    Modes: Mono
    Case
    Case: Keyboard
    Case Details: 10 Keys
    Keyboard: Non-weighted, Ivory
    Controls: Buttons
    Dimensions (WxDxH): 39.5 x 29 inches
    Connections
    Audio Output Connections: Mono Out
    Production
    Year Released: 1885
    Manuals & Documents
    Pricing
    Used Price: $27,000 - convert
    Shopping
    YouTube Videos
    References & Sources
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