Tanaka Masayuki's PCMFlow722 library enables (half-duplex) two-way real-time HD voice over ESP-NOW on ESP32 boards with a speaker and a microphone, ...

Back in the 80s, buying a home computer could easily mean an inflation-adjusted cost of thousands of dollars (or your equivalent currency unit of choice), and all for an 8-bit machine that might ...

It's time to make some noise.

In tropical forests, much of the biodiversity can be heard before it is seen. Birds call, insects buzz and frogs croak, creating complex soundscapes that reflect the presence of different species.

A few years ago, QuantAsylum’s QA403 filled a niche between costly high-end analyzers and basic hobbyist setups. In this article, we examine how well the analyzer stands up against these alternative ...

Abstract: Access to clean drinking water is critical for public health, yet many water sources contain dissolved solids, salts, and microbial contaminants that are not visually detectable but pose ...

At Franklin High School in Portland, Oregon, students are required to seal their phones in special pouches at the beginning of the school day. But headphones and earbuds don’t fit in the pouches.

In Australia, artificial intelligence is becoming a near-universal feature of education. As of 2025, nearly 80% of university students reported using AI in their studies. Overseas, reports are even ...

Abstract: Frequency response method is an important approach in the design and analysis of plants and controllers. Bode plot is a simple technique to graphically represent a system frequency response.

Flaws in how 17 models of headphones and speakers use Google’s one-tap Fast Pair Bluetooth protocol have left devices open to eavesdroppers and stalkers. Today, security researchers at Belgium’s KU ...