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<TITLE>Eric Marandas, René Caussé (IRCAM), Vincent Gibiat (LOA/ESPCI, UP7 URA CNRS): Tuning of Trichords in the Piano (ISMA 95, Dourdan 1995). IRCAM Multimedia Library © Ircam, 1996-8 - Research Institute in Acoustics and Music- Paris, France
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<!--TIT--><H1 ALIGN=center>Tuning of Trichords in the Piano</H1>
<!--AUT-->Eric Marandas, René Caussé (IRCAM), Vincent Gibiat (LOA/ESPCI, UP7 URA CNRS)
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<!--PUB--><B>ISMA 95, Dourdan 1995</B>
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<H3> Abstract</H3>
Are the two or three strings struck by the same hammer in a piano tuned in
perfect unison ? We used an experimental procedure for precise frequency
measurements of a single vibrating string (the others being damped), using
zero-crossings of the sound pressure signal (filtering out all but the
fundamental). We determined the "mistuning" between the three strings of unison
groups, from F1 to C5. The average "mistuning" was approximately 0.5 cents.
This value is three times lower than the frequency resolution of the ear given
by works on psychoacoustics.<P>
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