Category: Sound
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Baby’s First Infrasound Detection
Absolutely extremely technical I have a Sensirion transducer (SDP810-125PA at DigiKey $30.85) hooked up to an ESP32-S (ESP32-S3 Feather 8MB with w.FL Antenna at Adafruit $17.50). The transducer is for capturing infrasounds (< 20 Hz). Today was a milestone: the transducer detected an infrasound — its first “baby.” I am building this experimental device inspired…
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MEMs Microphone Investigation
<p><strong>Technical / DIY</strong> — for those interested in do-it-yourself sound monitoring of hyperscale data centers and related circuitry</p> <p>I’ve been mulling over Preston Blackburn’s Remote Audio Monitor design (see <a href="https://salemdata.net/johnpress/?p=1223">Monitor Sounds From a Data Center?</a>) and assessing its ability to monitor infrasound (<20hz) and low frequencies between 20 Hz and 50 Hz. Blackburn uses…
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Monitor Sounds From A Data Center?
A recent article, “[t]he complex corporate web behind a \$3.2 billion AI data center When multiple companies are behind one project, who bears responsibility for problems?” published by Ars Technica at link, intrigued me. There was a reference to a resident living in a house built in 1892 who complained of the constant noise from…