Experimental Acoustic Evaluation of an Auditorium

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td align="left">Subjective listener aspect</td><td align="center">Acoustical parameter</td><td align="center">Just noticeable difference (JND)</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td align="left">Perceived reverberance</td><td align="center">EDT</td><td align="center">5%</td></tr><tr><td align="left" rowspan="3">Perceived clarity of sound</td><td align="center">Clarity <svg height="15.6875" id="M22" style="vertical-align:-3.3907pt" version="1.1" viewbox="0 0 24.15 15.6875" width="24.15" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg></td><td align="center">1 dB</td></tr><tr><td align="center">Definition <svg height="15.4" id="M23" style="vertical-align:-3.3907pt" version="1.1" viewbox="0 0 25.825001 15.4" width="25.825001" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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<g transform="matrix(.012,0,0,-.012,13.713,15.188)"><path d="M153 550l-26 -186q79 31 111 31q90 0 141.5 -51t51.5 -119q0 -93 -89 -166q-85 -69 -173 -71q-32 0 -61.5 11.5t-41.5 23.5q-18 17 -17 34q2 16 22 33q14 9 26 -1q61 -50 124 -50q60 0 93 43.5t33 104.5q0 69 -41.5 110t-121.5 41q-53 0 -102 -20l38 305h286l6 -8
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</svg></td><td align="center">5%</td></tr><tr><td align="center"><span style="width: 16.525px;"><svg height="15.8375" id="M24" style="vertical-align:-3.3907pt" version="1.1" viewbox="0 0 16.525 15.8375" width="16.525" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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<g transform="matrix(.012,0,0,-.012,11.388,15.638)"><path d="M352 391q0 -31 -27 -44q-14 -7 -24 6q-39 48 -84 48q-23 0 -39.5 -15t-16.5 -40q0 -43 73 -90q49 -32 70 -58t21 -57q0 -58 -62 -105.5t-129 -47.5q-40 0 -75.5 25t-35.5 52q0 28 32 46q7 4 15 3t11 -6q19 -31 48.5 -50.5t54.5 -19.5q34 0 54 19.5t20 42.5q0 43 -65 81
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</svg></span></td><td align="center">10 ms</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Acoustical parameters and their JND values.

Advances in Acoustics and Vibration

tab3

Table 3

Table 3: Experimental Acoustic Evaluation of an Auditorium 