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Touch and temporal behavior of grand piano actions
KTH, School of Computer Science and Communication (CSC), Speech, Music and Hearing, TMH, Music Acoustics.ORCID iD: 0000-0002-3086-0322
2005 (English)In: Journal of the Acoustical Society of America, ISSN 0001-4966, E-ISSN 1520-8524, Vol. 118, no 2, 1154-1165 p.Article in journal (Refereed) Published
Abstract [en]

This study investigated the temporal behavior of grand piano actions from different manufacturers under different touch conditions and dynamic levels. An experimental setup consisting of accelerometers and a calibrated microphone was used to capture key and hammer movements, as well as the sound signal. Five selected keys were played by pianists with two types of touch (pressed touch versus struck touch) over the entire dynamic range. Discrete measurements were extracted from the accelerometer data for each of the over 2300 recorded tones (e.g., finger-key, hammer-string, and key bottom contact times, maximum hammer velocity). Travel times of the hammer (from finger-key to hammer-string) as a function of maximum hammer velocity varied clearly between the two types of touch, but only slightly between pianos. A travel time approximation used in earlier work [Goebl W., (2001). J. Acoust. Soc. Am. 110, 563-572] derived from a computer-controlled piano was verified. Constant temporal behavior over type of touch and low compression properties of the parts of the action (reflected in key bottom contact times) were hypothesized to be indicators for instrumental quality.

Place, publisher, year, edition, pages
Acoustical Society of America (ASA), 2005. Vol. 118, no 2, 1154-1165 p.
Keyword [en]
numerical simulations, string vibrations, hammer, tone, performance, design, motion, key
National Category
Computer Science Interaction Technologies Fluid Mechanics and Acoustics Music
URN: urn:nbn:se:kth:diva-14975DOI: 10.1121/1.1944648ISI: 000231210500060PubMedID: 16158669ScopusID: 2-s2.0-23744457104OAI: diva2:333016

QC 20100525

Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2016-07-21Bibliographically approved

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