Olly 👾<p>🔊 Build a Parametric Speaker of Your Own.</p><p>At the Hacker Hotel conference in the Netherlands, [Orange_Murker] presented an ultrasonic parametric speaker. It projects an extremely narrow beam of sound over a significant distance, but it’s not an audio frequency speaker at all.</p><p><a href="https://github.com/Orange-Murker/parametric_speaker" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/Orange-Murker/param</span><span class="invisible">etric_speaker</span></a></p><p><a href="https://nerdculture.de/tags/diy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>diy</span></a> <a href="https://nerdculture.de/tags/ultarsonic" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ultarsonic</span></a> <a href="https://nerdculture.de/tags/parametric" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>parametric</span></a> <a href="https://nerdculture.de/tags/speaker" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>speaker</span></a> <a href="https://nerdculture.de/tags/maker" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maker</span></a> <a href="https://nerdculture.de/tags/art" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>art</span></a> <a href="https://nerdculture.de/tags/media" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>media</span></a> <a href="https://nerdculture.de/tags/audio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>audio</span></a> <a href="https://nerdculture.de/tags/tech" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>tech</span></a> <a href="https://nerdculture.de/tags/engineer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>engineer</span></a> <a href="https://nerdculture.de/tags/artist" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>artist</span></a> <a href="https://nerdculture.de/tags/news" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>news</span></a></p>