The unique sound of the uni-vibe pedal: Part II. Transient behaviour

Cornelius F. Hahlweg; Hendrik Rothe

doi:10.1117/12.2021481

30 September 2013 The unique sound of the uni-vibe pedal: Part II. Transient behaviour

Cornelius F. Hahlweg, Hendrik Rothe

Author Affiliations +

Proceedings Volume 8842, Novel Optical Systems Design and Optimization XVI; 88420I (2013) https://doi.org/10.1117/12.2021481
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

The Uni-Vibe is an effect pedal mostly used by electric guitar players. It is based on an opto-electronically controlled all-pass chain. In last year’s paper on the subject an idealized system model was derived, which lead to deeper discussion of the musical consequences of the effect in terms of harmonic analysis of single tones and chords in clean and distorted mode. As a direct continuation the present paper deals with the transient behaviour of the device. The transient response is essential for understanding the special sound character, the reaction on picking techniques and the interaction with certain instruments. Therefore the system model is expanded and the pulse response of the idealized time invariant system is derived.

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Cornelius F. Hahlweg and Hendrik Rothe "The unique sound of the uni-vibe pedal: Part II. Transient behaviour", Proc. SPIE 8842, Novel Optical Systems Design and Optimization XVI, 88420I (30 September 2013); https://doi.org/10.1117/12.2021481

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