APUスペクトラムアナライザは、様々なFFT設定オプションをサポートする無料のスペクトル解析ツールです。FFTウィンドウの種類（Rect、Hann、Hamming、Blackman、Kaiser）とサイズ（64～65536）をニーズに合わせて調整できます。履歴サイズを調整してスペクトルを ...

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 ...

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 ...

This audio spectrum analyzer utilizes an ARM7 LPC2138 microcontroller to create an FFT algorithm while performing digital signal processing without the use of special DSP processor. This audio ...

Radio seems to be an unofficial theme for The Hackaday Prize, with a few wireless frameworks for microcontrollers and software defined radios making their way into the quarterfinal selection.

RF signal observation has evolved from yesteryear’s spectrum analyzer to today’s RF recorder. Swept spectrum analyzers, FFT analyzers, and real-time signal analyzers all had limitations. Today’s RF ...

Dual-core STM32H7 USB sound card featuring a 10-band parametric equalizer (Cortex-M7) and a real-time FFT spectrum analyzer via Node-RED (Cortex-M4). This project presents a USB sound card prototype ...