Helmholtz and the Sirens
Helmholtz and the Sirens
Hermann von Helmholtz’s investigations of physiological optics and acoustics reflected his profound interest in music. After devising instruments to measure the space and time parameters of visual and auditory response, Helmholtz produced “color curves” characterizing the complex response of the eye to the appropriate “dimensions” of hue, saturation, intensity. In so doing, he critiqued Newton’s attempt to impose the musical scale on vision. Through experiments on sirens, Helmholtz generalized auditory perception from vibrating bodies to air puffs. He gradually formed the view that recognition of musical intervals was closely analogous to spatial resemblance or recurrence. His unfolding conception of the “manifolds” or “spaces” of sensory experience radically reconfigured and extended Newton’s connection between the musical scale and visual perception via Thomas Young’s theory of color vision. In the process, Helmholtz’s studies of hearing and seeing led him to compare them as differently structured geometric manifolds.
Throughout the book where various sound examples are referenced, please see
Keywords: Hermann von Helmholtz, Physiological optics, Physiology of hearing, Color vision, Vibrating bodies, Sirens, Geometry, Manifolds
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