This project started as a personal summer experiment to get hands-on experience with the Arduino IDE, analog signal conditioning, and FFT-based frequency analysis. It takes a raw guitar signal (with ...

EMC（電磁両立性）とは、各種の電子・電気機器が他の機器に電磁的な干渉を与えず、また他の機器から電磁妨害を受けても正常に動作する耐性を持つことで、互いに共存できる概念です。このようにEMCには機器が発生するEMI （電磁妨害）と機器が持つべきEMS ...

オーディオ関係の人にとってスペクトラムアナライザ（以下スペアナ）は重要なツールの 1 つだと思いますが、その特性や種類についての解説はあまりされてきていないと感じました。 特に表題にもある FFT とフィルタバンクの方式の違いについてですが ...

Every machine has its own way of communicating with its operator. Some send status emails, some illuminate, but most of them vibrate and make noise. If it hums happily, that’s usually a good sign, but ...

無線組込み機器設計ではスペアナなどの測定機器が活躍しますが、測定機器はスペアナに限らず、その測定原理や測定方法を知らないと、間違った値を測定してしまうことがあり、製品設計時の品質・性能評価はもとより法規制評価や開発期間にも重大な悪 ...

With the ever-expanding adoption of wireless in embedded systems of all types, there’s no question that having spectrum analyzer capability in an oscilloscope is a time-savings convenience for ...

These days, streaming services are a great way to listen to music or podcasts on your computer or on the go. However, they lack one feature of the MP3 players and streamers of old: visualizations!

Everything you wanted to know (but were too afraid to ask) about using the MSGEQ7 audio spectrum analyzer chip. I’ve talked about using the MSGEQ7 Spectrum Analyzer chip in several columns over the ...

Modern pulsed radar systems use advanced waveform and modulation characteristics to obtain greater range resolution, enhanced clutter suppression and superior target recognition. Specifically, ...