Sympathetic String Modes in the Concert Harp

Carrou, Jean-Loïc Le; Gautier, François; Badeau, Roland

doi:10.3813/aaa.918202

Cited by 21 publications

(18 citation statements)

References 9 publications

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“…38 This method accurately 39 identifies the modal amplitudes a n , frequencies f n , phases / n , and Q factors Q n . 39,40 Furthermore the ESPRIT method overcomes the Fourier resolution, making possible the study of coupled systems with very close frequencies. 39 This is an expected feature of the string signals when dealing with the two polarizations.…”

Section: Signal Modelmentioning

confidence: 99%

“…39,40 Furthermore the ESPRIT method overcomes the Fourier resolution, making possible the study of coupled systems with very close frequencies. 39 This is an expected feature of the string signals when dealing with the two polarizations. The method proposed by Le Carrou 39 is applied here to the string signals, for the purpose of accuracy.…”

Section: Signal Modelmentioning

confidence: 99%

“…The ESPRIT method is applied to the resulting signal. The implementation of the ESPRIT method itself is explained in a very comprehensive way in recent papers 39,40 dealing with closely related topics.…”

Section: Signal Modelmentioning

confidence: 99%

See 2 more Smart Citations

Predicting the decay time of solid body electric guitar tones

Paté

Carrou

Fabre

2014

The Journal of the Acoustical Society of America

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Although it can be transformed by various electronic devices, the sound of the solid body electric guitar originates from, and is strongly linked with, the string vibration. The coupling of the string with the guitar alters its vibration and can lead to decay time inhomogeneities. This paper implements and justifies a framework for the study of decay times of electric guitar tones. Two damping mechanisms are theoretically and experimentally identified: the string intrinsic damping and the damping due to mechanical coupling with the neck of the guitar. The electromagnetic pickup is shown to not provide any additional damping to the string. The pickup is also shown to be far more sensitive to the out-of-plane polarization of the string. Finally, an accurate prediction of the decay time of electric guitar tones is made possible, whose only requirements are the knowledge of the isolated string dampings and the out-of-plane conductance at the neck of the guitar. This prediction can be of great help for instrument makers and manufacturers.

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Section: Signal Modelmentioning

confidence: 99%

Section: Signal Modelmentioning

confidence: 99%

See 1 more Smart Citation

Predicting the decay time of solid body electric guitar tones

Paté

Carrou

Fabre

2014

The Journal of the Acoustical Society of America

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“…This procedure is repeated for each modal frequency and each measurement. More details are given in [8,30]. Identified modal frequencies f and damping ra-tios ξ are the focus of the following of this article.…”

Section: Driving-point Measurement and Analysis Methodsmentioning

confidence: 99%

Modal parameter variability in industrial electric guitar making: Manufacturing process, wood variability, and lutherie decisions

2015

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Recent studies showed that mechanical coupling between structure and strings can alter the sound of the solid body electric guitar. Modal frequencies and damping ratios of the structure can explain some sound differences between instruments. These vibratory parameters can vary because of lutherie decisions (e.g. intentionally fitting guitars with different woods for sound quality purposes), wood intrinsic variability, or making process variability. Yet the vast majority of solid body electric guitars comes from an industrial massproduction: the manufacturing process is designed for producing guitars that are the most similar possible. However, musicians and makers know that guitars of the same model both share features, and still have some individual properties. The experimental quantification of the modal parameter variability of nominally identical electric guitars in an industrial context is the aim of this article. This variability is assessed on one guitar set, and compared to other industrial objects. A second guitar set is investigated: it consists of guitars with maple or rosewood fingerboard, all other specifications being identical. This second set allows the comparison between making process and wood variability, with the variability due to an intentional lutherie decision: the change of the fingerboard wood.

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“…Then a high resolution signal processing method is employed which implies the ESPRIT algorithm [27], according to the procedure described in [28,3,11]. …”

Section: Identication Of Linear Characteristicsmentioning

confidence: 99%

String/frets contacts in the electric bass sound: Simulations and experiments

Issanchou¹,

Carrou²,

Touzé

et al. 2018

Applied Acoustics

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For particular playing techniques such as "pop" or "slap" in the electric bass guitar, the string collides with frets, producing a percussive sound used in dierent music styles. The string/frets contacts introduce a non-linearity which is investigated both numerically and experimentally in this paper. A physical model, based on a modal description of the string, is implemented with an unconditionally stable scheme. Simulations including a string/structure coupling and the two polarisations of the string are confronted to controlled experiments, showing a good agreement for increasing amplitudes of initial conditions. A parametric study is then conducted numerically in order to highlight the inuence of physical parameters on the transient behaviour and raises questions related to tuning and playing issues.

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Sympathetic String Modes in the Concert Harp

Cited by 21 publications

References 9 publications

Predicting the decay time of solid body electric guitar tones

Predicting the decay time of solid body electric guitar tones

Modal parameter variability in industrial electric guitar making: Manufacturing process, wood variability, and lutherie decisions

String/frets contacts in the electric bass sound: Simulations and experiments

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