Influence of Playing on the Tonal Characteristics of a Concert Piano - Dataset

<p>Dataset supporting conference proceedings&nbsp;publication:</p> <p><strong>## Abstract</strong></p> <p>Well-maintained pianos are said to &rdquo;mature&rdquo; and to &rdquo;change for the better&rdquo; over the first years. When auditioning concert<br> pianos for purchase, technicians do often not choose the best sounding instrument but the one with the greatest potential<br> for future development. The present work addresses the following questions: Are structural changes measurable on a<br> piano after one year of operation in a concert house? Are these changes perceivable by listeners?<br> Measurements are performed on two occasions: First, on a brand new instrument prepared for sale. Second, on the same<br> piano after having been played for one year in a concert hall. Single notes are recorded with dummy-head-microphones<br> in player position in an anechoic chamber. An extended ABX listening test engaging approx. 100 players, tuners,<br> and builders, addresses the questions whether a variation in tonal quality is audible and if so, what sound properties<br> could lead to a perceived difference. Semantic sub-grouping allows for indication on the vocabulary listeners of varying<br> expertise use to verbalize their sensation. The statements give hints on what could have changed over the year and<br> are used as a basis for the analysis of corresponding physical properties and psychoacoustic parameters related to the<br> described sensations.</p> <p><strong>## Data Structure</strong></p> <p><strong>### Naming Rules:</strong></p> <p><strong>Example:</strong> &#39;D1_PROD07_01__0000_M0000.csv&#39;</p> <ul> <li>Ignore the <em>D1</em></li> <li><em>PROD07&nbsp;</em>is before the year in a concert hall, <em>PROD08&nbsp;</em>is after the year.</li> <li><em>01</em> is the key (range: <em>01-88</em>)</li> <li>Ignore the&nbsp;<em>0000.</em></li> <li><em>M0000 </em>is the take (range: <em>M0000-M0004</em>)</li> </ul> <p>.csv files contain the data, the corresponding&nbsp;.txt files are the headers.</p> <p><strong>### Columns in&nbsp;.csv file:</strong></p> <ul> <li><strong>Time [s]</strong>; Time vector</li> <li><strong>Kistler 9722A500 [N]</strong>; Force sensor, measures the key / key bed impact force</li> <li><strong>PCB 352C23 [m/s^2]</strong>; Acceleration sensor, measures the acceleration at the bridge (at the hitch pins of the corresponding string) in direction normal to the soundboard.&nbsp;</li> <li><strong>HSU 3.2 left [Pa]</strong>; Left ear channel of dummy head, measures sound pressure in player position.</li> <li><strong>HSU 3.2 right [Pa]</strong>;&nbsp;Right ear channel of dummy head, measures sound pressure in player position.</li> </ul> <p>sample rate = 50000</p> <p>The listening test utilizing this dataset is still online (however, your input will not be evaluated):&nbsp;<a href="http://www.culturalheritage.digital/listeningtest/">http://www.culturalheritage.digital/listeningtest/</a></p> <p>Feel free to contact me for comments or questions: niko.plath@uni-hamburg.de</p>