An AVR ATmega8 microcontroller and an operational amplifier is used to build this spectrum analyzer which can improve the audio quality of an equipment. A variety of displays are supported by the AVR ...

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 ...

Juergen Grau data the new DIY audio spectrum analyser called the Magilyzer EM800 complete with EM800 Magic Eye tubes, which has this week launched via Kickstarter and is now available to back with ...

While [Vinod] says he’s not an expert in this sort of thing, we really like his audio spectrum analyzer build from a simple microcontroller and LCD display. It is a well-studied fact that every audio ...

Juergen Grau has taken to Kickstarter once again to launch and raise funds for his new analogue audio spectrum analyser which takes the form of the Magilyzer Mk II, which builds upon previous designs ...

Dog Park Software has released iSpectrum Analyzer 2.0, a new version of the audio spectrum analyzer for Mac OS X. New to this release is Universal Binary support for Intel Macs. iSpectrum Analyzer ...

True Audio's TrueRTA v.3.1 is a PC-based real-time analyzer (RTA). The TrueRTA includes a low distortion signal generator, digital Voltmeter, dBu meter, dB SPL meter, crest factor meter, dual-trace ...

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.

True Audio's TrueRTA v3.1 is a PC-based, real-time analyzer (RTA) that includes a low-distortion signal generator, digital voltmeter, dBu meter, dB SPL meter, crest-factor meter, dual-trace ...

Only LED displays that are made to display text. <BR><BR>An all-hardware audio spectrum analyzer is a pretty simple beast... particularly if you don't need it fancy, calibrated, useful for real ...