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2014 | OriginalPaper | Buchkapitel

An Initial Study on Pitch Correction Guidance for String Instruments Using Haptic Feedback

verfasst von : Yongjae Yoo, Seungmoon Choi

Erschienen in: Haptics: Neuroscience, Devices, Modeling, and Applications

Verlag: Springer Berlin Heidelberg

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Abstract

Learning to play a string instrument takes years of practice. Novice players even find it difficult to play correct pitches, and chromatic tuners that visualize the errors in the played pitches have long been used as an effective aid. However, chromatic tuners can detract users’ visual attention from more essential visual cues such as musical scores. As an alternative, we have been developing HapTune (Haptic Tuner), which conveys the pitch errors to the user using haptic feedback. In this paper, we present an initial design of HapTune that relies on spatiotemporal information coding using two vibrotactile actuators. We also verified that the vibrotactile stimuli provided by HapTune can be easily recognized by a user experiment.

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Fußnoten
1
Cent is a logarithmic unit of measure used for musical intervals. In the equal tempered scale, 100 cents correspond to a semitone. The ratio between frequencies one cent apart is \(2^{\frac{1}{1200}}\) \((\approx 1.00057779)\). The pitch error in cent is calculated by
$$ e_{cent} = 1200 \times log_{2}{\frac{f_{p}}{f_{d}}} $$
where \(f_p\) is the frequency of played pitch and \(f_d\) is desired frequency of the pitch. For example, a user plays A4 (440 Hz) with 445 Hz, the error is 19.56 cents.
 
Literatur
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Zurück zum Zitat Yoo, Y., Hwang, I., Choi, S.: Consonance perception of vibrotactile chords: a feasibility study. In: Cooper, E.W., Kryssanov, V.V., Ogawa, H., Brewster, S. (eds.) HAID 2011. LNCS, vol. 6851, pp. 42–51. Springer, Heidelberg (2011) CrossRef Yoo, Y., Hwang, I., Choi, S.: Consonance perception of vibrotactile chords: a feasibility study. In: Cooper, E.W., Kryssanov, V.V., Ogawa, H., Brewster, S. (eds.) HAID 2011. LNCS, vol. 6851, pp. 42–51. Springer, Heidelberg (2011) CrossRef
Metadaten
Titel
An Initial Study on Pitch Correction Guidance for String Instruments Using Haptic Feedback
verfasst von
Yongjae Yoo
Seungmoon Choi
Copyright-Jahr
2014
Verlag
Springer Berlin Heidelberg
DOI
https://doi.org/10.1007/978-3-662-44193-0_31