Double siren
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| - | The '''double siren''' is an instrument used in experiments in the theory of music, due to the fixed ratio of the frequencies between the individual tones | + | The '''double siren''' is an instrument used in experiments in the theory of music, due to the fixed ratio of the frequencies between the individual tones. It is capable of producing octaves, fifths, fourths, major and minor thirds, whole and semi-tones, beats, cancellations, etc. |
In 1885, Helmholtz published the first description of this instrument, in his ''Die Lehr von den Tonempfindungen'' (''On the Sensations of Tone''). Notable experiments include the vibration of overtones, interference, tonal depth, and combined tones. | In 1885, Helmholtz published the first description of this instrument, in his ''Die Lehr von den Tonempfindungen'' (''On the Sensations of Tone''). Notable experiments include the vibration of overtones, interference, tonal depth, and combined tones. | ||
Revision as of 05:24, 21 February 2006
The double siren is an instrument used in experiments in the theory of music, due to the fixed ratio of the frequencies between the individual tones. It is capable of producing octaves, fifths, fourths, major and minor thirds, whole and semi-tones, beats, cancellations, etc.
In 1885, Helmholtz published the first description of this instrument, in his Die Lehr von den Tonempfindungen (On the Sensations of Tone). Notable experiments include the vibration of overtones, interference, tonal depth, and combined tones.
References
- Hafter, Ervin. Helmholtz's Double Siren. Berkeley Audiotory Perception Lab. URL accessed 2006-02-20.
- Kohl, Max. Physical Apparatus. Price List No. 50. Vols II and III. p 422.
