<div dir="auto"></div><div class="gmail_quote">---------- Forwarded message ----------<br>From: "Jeremy Davis" <<a href="mailto:jeremyhwllc@gmail.com">jeremyhwllc@gmail.com</a>><br>Date: Dec 14, 2017 11:36 AM<br>Subject: Tonight! Low Tech Audio Engineering at the TriLUG Holiday Social<br>To: "TriLUG Mailing List" <<a href="mailto:trilug@trilug.org">trilug@trilug.org</a>><br>Cc: <br><br type="attribution"><div dir="auto"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:arial;font-size:11pt">Hey folks! A few years back I brought stereo equipment to the TriLUG Holiday Social to promote awareness of Creative Commons music. I will be back this year with a new twist.</span><br></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">I am bringing speakers, an amp, and as many 4”x8”x16” concrete blocks as I can physically manage with my minivan. But WHY???</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">1. So we will have music.</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">2. They say exercise is good for your health.</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">3. Interactive low tech audio engineering experimentation.</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">4. Enable would be event organizers to deliver big sound on a tiny budget. </span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">5. Playing with blocks is fun. They can be infinitely repurposed.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">Search these terms via Google Images and you will get an idea of what can be done:</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">-Tapped Horn Subwoofer Enclosure Design</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">-Transmission Line Enclosure Design</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">-Horn Loaded Speaker Design</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">-Horn Theory</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">-Folded Horn Speaker Design</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">-Danley Sound Labs </span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">-Tom Danley Tapped Horn</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">-The Matterhorn military weapon</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">-Funktion One Speakers Tony Andrews</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">- hornresp calculator</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">A few decades ago, concerts were performed in stadiums with amps that only produced about 10 watts. To compensate for the low power amps, speaker enclosures had to be huge horns. Sealed enclosures are about 1% efficient vs horn enclosures are about 30% efficient. </span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">Tony Andrews has been around for a long time and set up audio for bands like Led Zeppelin, Jimi Hendrix and Pink Floyd. Today his company Funktion-One provides the audio for most EDM festivals. </span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">Tom Danley of Danley Sound Labs has become a reputable competitor in this field as well and their cabinets are built in NC. Tom is well known for the Tapped Horn design as well as the military weapon horn speaker… The MATTERHORN.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">Both prominent companies use horn enclosure design in their speakers.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">Come on out if you are any of these:</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">-good at math</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">-audio enthusiast</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">-event organizer</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">-strong and can carry concrete blocks</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">-have Creative Commons licensed music to share</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">-musician </span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">-or any other of the countless great reasons to attend the TriLUG Holiday Social!</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">I may have a laptop set up with open source audio software to demo as well.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">See you there</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:arial;vertical-align:baseline">Jeremy Davis</span></p><br><br><br><br><br><br><br><br><br><br><br></div>
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