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            <div   id="cc0kqq2g"   class="date-wrap"> <span id="cc0kqq2g"    class="date"> 27 </span> <span id="cc0kqq2g"    class="month"> 2020-10 </span> </div>
            <div   id="cc0kqq2g"   class="author"> By <a href="javascript:;"> <a href='mailto:'>���岩声学</a> </a> </div>
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            <h1><i class="fa fa-envira"></i>什么是混响旉����Q?/h1><hr style="margin-bottom:30px">
            <p><span style="font-size: 14px;">&nbsp;混响旉��� Reverberation Time 【RT】定义：(x��)在室内声韛_��辄���定状态后�Q�中�?停止 声源的发声。��^均声能密度自原始��D��变到其百万分之一所需要的旉����Q�即声源停止发声后衰�?0dB所需要的旉����?/span></p>
<p><span style="font-size: 14px;">通常情况下，混响旉������短�Q�声学舒适度���高。但在某些特定场合（例如�Q�音乐厅�Q�，较长的�؜响时间能够提升听觉��n受�?/span></p>
<p>&nbsp;</p>
<p><span style="font-size: 14px;">混响旉���取决于空间尺寸和形状以及(qi��ng)吔R��表面的数量、质量和位置。房间的吔R��性能���好�Q�其混响旉������小�?/span></p>
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<div><span style="font-size: 14px;">在室内，声源辐射的声波传播的室内的各界面上，部分声能�?x��)被界面所吸收�Q�另外一部分�?x��)被反射和扩散。通常需要进�q�多�ơ反���后�Q�声能密度才能衰减到可以被忽略的�E�度。当声源�q�箋�E�_��的辐���声波时�Q�空间内各点的声能是来自各方向声波叠加的�l�果。其中，没有�l�过反射直接由声源传播到某点的声波称为直辑֣��Q�经�q�一�ơ或多次反射声�L的叠加称为�؜响声�?br />
那么所谓的混响其实可以理解为：(x��)声源停止发声后，在声��Z���q�存在着来自各界面迟到的反射声�Ş成的声音&ldquo;�D�留&rdquo;现象。这�U�残留现象的长短�Q�用混响旉���来表�C��?/span></div>
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