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Experimentelle Untersuchungen zur Entstehung des Wolftons beim Cello

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For investigating the wolf-effect a monochord was set-up and the bridge, bass-bar and soundboard of the cello were replaced by a simple mechanical resonator. The vibrations of the string and resonator were recorded by an oscillograph. The wolf-effect is obtained with the monochord as with the cello but is more reproducible with the monochord and therefore better for measurement. Its properties were investigated. The phenomenon of the wolf-tone was shown to depend strongly on the bow-pressure and on the bowing-point on the string.

Zusammenfassung

Zur Untersuchung des Wolfeffektes wird ein Monochord gebaut, bei dem Steg, Baßbalken und Decke des Cellos durch einen einfachen mechanischen Resonator ersetzt werden. Die Schwingungen von Saite und Resonator werden oszillographisch aufgezeichnet. Der Wolfeffekt erscheint beim Monochord ebenso, wie bei einem Cello, ist aber am Monochord reproduzierbarer und daher besser zu messen. Seine Eigenschaften werden untersucht. Es zeigt sich, daß die Erscheinungsform des Wolftons stark vom Bogendruck und vom Anstreichort auf der Saite abhängt.

Sommaire

Pour étudier l'effet de «hurlement» on a construit un monocorde où chevalet, âme et caisse du violoncelle ont été remplacés par un résonateur mécanique simple. Les vibrations de la corde et du résonateur sont observées à l'oscillographe. Au monocorde, le hurlement est plus reproductible et donc plus facile à mesurer. Ses propriétés ont pu être étudiées. L'apparition du hurlement dépend fortement de la pression de l'archet et de son point d'attaque sur la corde.
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Document Type: Research Article

Publication date: November 1, 1978

More about this publication?
  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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