Just FYI, some phones&#39; audio systems are limited. For instance, on many Samsung phones, a sound meter app won&#39;t register over 80dB because of the phone&#39;s limitation, which I had to determine from experimentation.<div class="ygroups-quoted"><br><br>---In trad-dance-callers@yahoogroups.com, &lt;garren@...&gt; wrote :<br><br><div id="ygrps-yiv-1716899396"><div>I like the idea of getting a sound db app and measuring the volume at various places in the hall. &nbsp;Also, talking directly to the organizers. Good sound is hard, but that&#39;s no excuse for making dancers uncomfortable. &nbsp;I also suspect you should talk directly to other dancers at the event (during a break).&nbsp;</div><div id="ygrps-yiv-1716899396AppleMailSignature"><br></div><div id="ygrps-yiv-1716899396AppleMailSignature">Also, I bet raising those speakers would solve most of the problems.&nbsp;<br><br>Lynn</div><blockquote type="cite"><div><div id="ygrps-yiv-1716899396ygrp-text"><p></p></div></div></blockquote></div></div>